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19-2182; Rev 2; 12/02
Precision, Low-Power, Low-Dropout, UCSP Voltage Reference
General Description
The MAX6023 is a family of low-dropout, micropower voltage references in a 5-bump, chip-scale package (UCSPTM). The MAX6023 series-mode (three-terminal) references, which operate with input voltages from 2.5V to 12.6V (1.25V and 2.048V options) or (VOUT + 0.2V) to 12.6V (all other voltage options), are available with output voltage options of 1.25V, 2.048V, 2.5V, 3.0V, 4.096V, 4.5V, and 5.0V. These devices are guaranteed an initial accuracy of 0.2% and 30ppm/C temperature drift over the -40C to +85C extended temperature range. UCSPs offer the benefit of moving to smaller footprint and lower profile devices, significantly smaller than even SC70 or SOT23 plastic surface-mount packages. The significantly lower profile (compared to plastic SMD packages) of the UCSP makes the device ideal for height-critical applications. Miniature UCSP packages also enable device placement close to sources and allow more flexibility in a complex or large design layout. The MAX6023 voltage references use only 27A of supply current. And unlike shunt-mode (two-terminal) references, the supply current of the MAX6023 family varies only 0.8A/V with supply-voltage changes, translating to longer battery life. Additionally, these internally compensated devices do not require an external compensation capacitor and are stable up to 2.2nF of load capacitance. The low-dropout voltage and the low supply current make these devices ideal for battery-operated systems. o No Output Capacitor Needed o 0.2% (max) Initial Accuracy o 30ppm/C (max) Temperature Coefficient o 35A (max) Quiescent Supply Current o 0.8A/V (max) Supply Current Variation with VIN o 100mV Dropout at 500A Load Current o Line Regulation: 160V/V (max) o Output Voltage Options: 1.25V, 2.048V, 2.5V, 3.0V, 4.096V, 4.5V, 5.0V
Features
o 5-Bump UCSP Package (1.0mm 1.5mm 0.3mm)
MAX6023
Ordering Information
PART MAX6023EBT12-T MAX6023EBT21-T MAX6023EBT25-T MAX6023EBT30-T MAX6023EBT41-T MAX6023EBT45-T MAX6023EBT50-T TEMP RANGE -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C BUMPPACKAGE 5 UCSP*-5 5 UCSP-5 5 UCSP-5 5 UCSP-5 5 UCSP-5 5 UCSP-5 5 UCSP-5 TOP MARK AAO AAT AAP AAS AAQ AAR AAU
Applications
Hand-Held Equipment Data Acquisition Systems Industrial and Process Control Systems Battery-Operated Equipment Hard-Disk Drives
*UCSP reliability is integrally linked to the user's assembly methods, circuit board material, and environment. See the UCSP Reliability Notice in the UCSP Reliability section of this data sheet for more information.
Typical Operating Circuit
+SUPPLY INPUT (SEE SELECTOR GUIDE)
IN
Selector Guide
PART MAX6023EBT12 MAX6023EBT21 MAX6023EBT25 MAX6023EBT30 MAX6023EBT41 MAX6023EBT45 MAX6023EBT50 VOUT (V) 1.250 2.048 2.500 3.000 4.096 4.500 5.000 INPUT VOLTAGE (V) 2.5V to 12.6 2.5V to 12.6 (VOUT + 200mV) to 12.6 (VOUT + 200mV) to 12.6 (VOUT + 200mV) to 12.6 (VOUT + 200mV) to 12.6 (VOUT + 200mV) to 12.6
*CAPACITOR IS OPTIONAL. GND *
OUT
REFERENCE OUT
MAX6023
Pin Configuration appears at end of data sheet.
UCSP is a trademark of Maxim Integrated Products, Inc. ________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
Precision, Low-Power, Low-Dropout, UCSP Voltage Reference MAX6023
ABSOLUTE MAXIMUM RATINGS
(Voltages Referenced to GND) IN .........................................................................-0.3V to +13.5V OUT .............................................................-0.3V to (VIN + 0.3V) Output Short Circuit to GND or IN (VIN < 6V) ............Continuous Output Short Circuit to GND or IN (VIN 6V) .........................60s Continuous Power Dissipation (TA = +70C) 5-Bump UCSP (derate 3.4mW/C above +70C)........273mW Operating Temperature Range ..........................-40C to +85C Storage Temperature Range .............................-65C to +150C Bump Temperature (soldering, 10s)................................+300C
Note 1: This device is constructed using a unique set of packaging techniques that impose a limit on the thermal profile the device can be exposed to during board-level solder attach and rework. This limit permits only the use of solder profiles recommended in the industry-standard specification, JEDEC 020A, paragraph 7.6, Table 3 for IR/VPR and convection reflow. Preheating is required. Hand or wave soldering is not allowed.
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS-MAX6023EBT12 (VOUT = 1.250V)
(VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 2)
PARAMETER OUTPUT Output Voltage Initial Voltage Accuracy Output Voltage Temperature Coefficient Line Regulation Load Regulation Short-Circuit Current Temperature Hysteresis Long-Term Stability DYNAMIC CHARACTERISTICS Noise Voltage Ripple Rejection Turn-On Settling Time Capacitive-Load Stability Range INPUT Supply-Voltage Range Supply Current Change in Supply Current VIN IIN IIN/VIN 2.5V VIN 12.6V Guaranteed by line-regulation test 2.5 27 0.8 12.6 35 2.0 V A A/V eOUT VOUT/ IOUT tR COUT f = 0.1Hz to 10Hz f = 10Hz to 10kHz VIN = +5V 100mV, f = 120Hz To VOUT within 0.1% of final value, COUT = 50pF (Note 3) 0 25 65 86 30 2.2 Vp-p VRMS dB s nF VOUT/ time VOUT/ VIN VOUT/ IOUT ISC VOUT TA = +25C TA = +25C (Note 3) 2.5V VIN 12.6V 0 IOUT 400A -400A IOUT 0 Short to GND Short to IN (Note 4) 1000hr at TA = +25C 1.247 -0.24 10 10 0.4 0.5 4 10 90 30 1.250 1.253 +0.24 30 80 1.0 1.1 V % ppm/C V/V V/A mA ppm ppm/ 1000hr SYMBOL CONDITIONS MIN TYP MAX UNITS
2
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Precision, Low-Power, Low-Dropout, UCSP Voltage Reference
ELECTRICAL CHARACTERISTICS-MAX6023EBT21 (VOUT = 2.048V)
(VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 2)
PARAMETER OUTPUT Output Voltage Initial Voltage Accuracy Output Voltage Temperature Coefficient Line Regulation Load Regulation Short-Circuit Current Temperature Hysteresis Long-Term Stability DYNAMIC CHARACTERISTICS Noise Voltage Ripple Rejection Turn-On Settling Time Capacitive-Load Stability Range INPUT Supply-Voltage Range Supply Current Change in Supply Current VIN IIN IIN/VIN 2.5V VIN 12.6V Guaranteed by line-regulation test 2.5 27 0.8 12.6 35 2.0 V A A/V eOUT VOUT/ IOUT tR COUT f = 0.1Hz to 10Hz f = 10Hz to 10kHz VIN = +5V 100mV, f = 120Hz To VOUT within 0.1% of final value, COUT = 50pF (Note 3) 0 40 105 82 85 2.2 Vp-p VRMS dB s nF VOUT/ time VOUT/ VIN VOUT/ IOUT ISC VOUT TA = +25C TA = +25C (Note 3) 2.5V VIN 12.6V 0 IOUT 500A -500A IOUT 0 Short to GND Short to IN (Note 4) 1000hr at TA = +25C 2.044 -0.20 10 20 0.5 0.3 4 10 90 50 2.048 2.052 +0.20 30 100 1.4 0.70 V % ppm/C V/V V/A mA ppm ppm/ 1000hr SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX6023
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3
Precision, Low-Power, Low-Dropout, UCSP Voltage Reference MAX6023
ELECTRICAL CHARACTERISTICS-MAX6023EBT25 (VOUT = 2.500V)
(VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 2)
PARAMETER OUTPUT Output Voltage Initial Voltage Accuracy Output Voltage Temperature Coefficient Line Regulation Load Regulation Short-Circuit Current Dropout Voltage Temperature Hysteresis Long-Term Stability DYNAMIC CHARACTERISTICS Noise Voltage Ripple Rejection Turn-On Settling Time Capacitive-Load Stability Range INPUT Supply-Voltage Range Supply Current Change in Supply Current VIN IIN IIN/VIN (VOUT + 0.2V) VIN 12.6V Guaranteed by line-regulation test VOUT + 0.2 27 0.8 12.6 35 2.0 V A A/V eOUT VOUT/ IOUT tR COUT f = 0.1Hz to 10Hz f = 10Hz to 10kHz VIN = +5V 100mV, f = 120Hz To VOUT within 0.1% of final value, COUT = 50pF (Note 3) 0 60 125 82 85 2.2 Vp-p VRMS dB s nF VOUT/ time VOUT/ VIN VOUT/ IOUT ISC VOUT TA = +25C TA = +25C (Note 3) (VOUT + 0.2V) VIN 12.6V 0 IOUT 500A -500A IOUT 0 Short to GND Short to IN (Note 4) 1000hr at TA = +25C 2.495 -0.20 10 25 0.5 0.3 4 10 100 90 50 200 2.5 2.505 +0.20 30 140 1.4 0.8 V % ppm/C V/V V/A mA mV ppm ppm/ 1000hr SYMBOL CONDITIONS MIN TYP MAX UNITS
(VIN - VOUT) IOUT = 500A (Note 5)
4
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Precision, Low-Power, Low-Dropout, UCSP Voltage Reference
ELECTRICAL CHARACTERISTICS-MAX6023EBT30 (VOUT = 3.000V)
(VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 2)
PARAMETER Output Voltage Initial Voltage Accuracy Output Voltage Temperature Coefficient Line Regulation Load Regulation Dropout Voltage Short-Circuit Current Temperature Hysteresis Long-Term Stability DYNAMIC CHARACTERISTICS Noise Voltage Ripple Rejection Turn-On Settling Time Capacitive-Load Stability Range INPUT Supply-Voltage Range Supply Current Change in Supply Current VIN IIN IIN/VIN (VOUT + 0.2V) VIN 12.6V Guaranteed by line-regulation test VOUT + 0.2 27 0.8 12.6 35 2.0 V A A/V eOUT VOUT/ VIN tR COUT f = 0.1Hz to 10Hz f = 10Hz to 10kHz VIN = +5V 100mV, f = 120Hz To VOUT within 0.1% of final value, COUT = 50pF (Note 3) 0 75 150 82 85 2.2 Vp-p VRMS dB s nF VOUT/ time VOUT/ VIN VOUT/ IOUT (VIN VOUT) ISC SYMBOL VOUT TA = +25C TA = +25C (Note 3) (VOUT + 0.2V) VIN 12.6V 0 IOUT 500A -500A IOUT 0 IOUT = 500A (Note 5) Short to GND Short to IN (Note 4) 1000hr at TA = +25C CONDITIONS MIN 2.994 -0.20 10 40 0.7 0.4 100 4 10 90 50 TYP 3.000 MAX 3.006 +0.20 30 140 1.5 0.8 200 UNITS V % ppm/C V/V V/A mV mA ppm ppm/ 1000hr
MAX6023
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5
Precision, Low-Power, Low-Dropout, UCSP Voltage Reference MAX6023
ELECTRICAL CHARACTERISTICS-MAX6023EBT41 (VOUT = 4.096V)
(VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 2)
PARAMETER OUTPUT Output Voltage Initial Voltage Accuracy Output Voltage Temperature Coefficient Line Regulation Load Regulation Dropout Voltage Short-Circuit Current Temperature Hysteresis Long-Term Stability DYNAMIC CHARACTERISTICS Noise Voltage Ripple Rejection Turn-On Settling Time Capacitive-Load Stability Range INPUT Supply-Voltage Range Supply Current Change in Supply Current VIN IIN IIN/VIN (VOUT + 0.2V) VIN 12.6V Guaranteed by line-regulation test VOUT + 0.2 27 0.8 12.6 35 2.0 V A A/V eOUT VOUT/ VIN tR COUT f = 0.1Hz to 10Hz f = 10Hz to 10kHz VIN = +5V 100mV, f = 120Hz To VOUT within 0.1% of final value, COUT = 50pF (Note 3) 0 100 200 77 160 2.2 Vp-p VRMS dB s nF VOUT/ time VOUT/ VIN VOUT/ IOUT (VIN VOUT) ISC VOUT TA = +25C TA = +25C (Note 3) (VOUT + 0.2V) VIN 12.6V 0 IOUT 500A -500A IOUT 0 IOUT = 500A (Note 5) Short to GND Short to IN (Note 4) 1000hr at TA = +25C 4.088 -0.20 10 50 1.0 0.3 100 4 10 90 50 4.096 4.104 +0.20 30 160 1.8 0.9 200 V % ppm/C V/V V/A mV mA ppm ppm/ 1000hr SYMBOL CONDITIONS MIN TYP MAX UNITS
6
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Precision, Low-Power, Low-Dropout, UCSP Voltage Reference
ELECTRICAL CHARACTERISTICS-MAX6023EBT45 (VOUT = 4.500V)
(VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 2)
PARAMETER OUTPUT Output Voltage Initial Voltage Accuracy Output Voltage Temperature Coefficient Line Regulation Load Regulation Dropout Voltage Short-Circuit Current Temperature Hysteresis Long-Term Stability DYNAMIC CHARACTERISTICS Noise Voltage Ripple Rejection Turn-On Settling Time Capacitive-Load Stability Range INPUT Supply-Voltage Range Quiescent Supply Current Change in Supply Current VIN IIN IIN/VIN (VOUT + 0.2V) VIN 12.6V Guaranteed by line-regulation test VOUT + 0.2 27 0.8 12.6 35 2.0 V A A/V eOUT VOUT/ VIN tR COUT f = 0.1Hz to 10Hz f = 10Hz to 10kHz VIN = +5V 100mV, f = 120Hz To VOUT within 0.1% of final value, COUT = 50pF (Note 3) 0 110 215 82 85 2.2 Vp-p VRMS dB s nF VOUT/ time VOUT/ VIN VOUT/ IOUT (VIN VOUT) ISC VOUT TA = +25C TA = +25C (Note 3) (VOUT + 0.2V) VIN 12.6V 0 IOUT 500A -500A IOUT 0 IOUT = 500A (Note 5) Short to GND Short to IN (Note 4) 1000hr at TA = +25C 4.491 -0.20 10 50 1.0 0.3 100 4 10 90 50 4.500 4.509 +0.20 30 160 2.0 1.0 200 V % ppm/C V/V V/A mV mA ppm ppm/ 1000hr SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX6023
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7
Precision, Low-Power, Low-Dropout, UCSP Voltage Reference MAX6023
ELECTRICAL CHARACTERISTICS-MAX6023EBT50 (VOUT = 5.000V)
(VIN = +5.5V, IOUT = 0, TA = TMIN to TMAX , unless otherwise noted. Typical values are at TA = +25C.) (Note 2)
PARAMETER Output Voltage Initial Voltage Accuracy Output Voltage Temperature Coefficient Line Regulation Load Regulation Dropout Voltage Short-Circuit Current Temperature Hysteresis Long-Term Stability DYNAMIC CHARACTERISTICS Noise Voltage Ripple Rejection Turn-On Settling Time Capacitive-Load Stability Range INPUT Supply-Voltage Range Quiescent Supply Current Change in Supply Current VIN IIN IIN/VIN 2.5V VIN 12.6V Guaranteed by line-regulation test VOUT + 0.2 27 0.9 12.6 35 2.0 V A A/V eOUT VOUT/ VIN tR COUT f = 0.1Hz to 10Hz f = 10Hz to 10kHz VIN = +5V 100mV, f = 120Hz To VOUT within 0.1% of final value, COUT = 50pF (Note 3) 0 120 240 72 220 2.2 Vp-p VRMS dB s nF VOUT/ time VOUT/ VIN VOUT/ IOUT (VIN VOUT) ISC SYMBOL VOUT TA = +25C TA = +25C (Note 3) (VOUT + 0.2V) VIN 12.6V 0 IOUT 500A -500A IOUT 0 IOUT = 500A (Note 5) Short to GND Short to IN (Note 4) 1000hr at TA = +25C CONDITIONS MIN 4.990 -0.20 10 50 1.2 0.3 100 4 10 90 50 TYP 5.0 MAX 5.010 +0.20 30 160 2.2 1.1 200 UNITS V % ppm/C V/V V/A mV mA ppm ppm/ 1000hr
Note 2: Devices are 100% production tested at TA = +25C and are guaranteed by design from TA = TMIN to TMAX. Note 3: Guaranteed by design. Note 4: Temperature hysteresis is defined as the change in TA = +25C output voltage before and after temperature cycling of the device from TA = TMIN to TMAX. Note 5: Dropout voltage is the minimum input voltage at which VOUT changes 0.2% from VOUT at VIN = +5.0V (VIN = +5.5V for MAX6023EBT50).
8
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Precision, Low-Power, Low-Dropout, UCSP Voltage Reference MAX6023
Typical Operating Characteristics
(VIN = +5V for MAX6023EBT12/21/25/30/41/45, VIN = +5.5V for MAX6023EBT50; IOUT = 0; TA = +25C, unless otherwise noted.) (Note 6)
MAX6023EBT12 OUTPUT VOLTAGE TEMPERATURE DRIFT
MAX6023 toc01
MAX6023EBT50 OUTPUT VOLTAGE TEMPERATURE DRIFT
MAX6023 toc02
MAX6023EBT50 LONG-TERM DRIFT
5.002 5.001 OUTPUT VOLTAGE (V) 5.000 4.999 4.998 4.997 4.996 4.995 THREE TYPICAL PARTS
MAX6023 toc03
1.2510 1.2505 1.2500 VOUT (V) 1.2495
5.004 5.002 5.000 4.998 VOUT (V) 4.996 4.994 4.992 4.990
5.003
1.2490 1.2485 1.2480 1.2475 1.2470 -40 THREE TYPICAL PARTS -20 0 20 40 60 80 100
4.988 4.986 -40 -20 0 20 40
THREE TYPICAL PARTS 60 80 100
4.994 4.993 0 100 200 300 400 500 600 700 800 900 1000 TIME (hr)
TEMPERATURE DRIFT (C)
TEMPERATURE DRIFT (C)
MAX6023EBT12 LINE REGULATION
MAX6023 toc04
MAX6023EBT50 LINE REGULATION
MAX6023 toc05
MAX6023EBT25/30 DROPOUT VOLTAGE vs. SOURCE CURRENT
0.7 DROPOUT VOLTAGE (V) 0.6 0.5 TA = -40C 0.4 0.3 0.2 0.1 TA = +25C 0 200 400 600 800 1000 TA = +85C
MAX6023 toc06
400 OUTPUT VOLTAGE CHANGE (V)
800 OUTPUT VOLTAGE CHANGE (V) TA = +85C 600 TA = -40C 400
0.8
300 TA = +85C 200 TA = -40C
100
200
TA = +25C
0
TA = +25C
0
-100 2 4 6 8 10 12 14 INPUT VOLTAGE (V)
-200 5 7 9 INPUT VOLTAGE (V) 11 13
0 SOURCE CURRENT (A)
MAX6023EBT12 LOAD REGULATION
MAX6023 toc07
MAX6023EBT50 LOAD REGULATION
MAX6023 toc08
MAX6023EBT41/45/50 DROPOUT VOLTAGE vs. SOURCE CURRENT
MAX6023 toc09
0.4 OUTPUT VOLTAGE CHANGE (mV)
0.4 OUTPUT VOLTAGE CHANGE (mV)
0.30 0.25 DROPOUT VOLTAGE (V) 0.20 0.15 0.10 0.05 0 0 200 400 600 800 TA = +25C TA = -40C
0.2 TA = -40C 0 TA = +85C -0.2 TA = +25C
0.2 TA = -40C 0
TA = +85C
-0.2
TA = +25C TA = +85C
-0.4 -500 -375 -250 -125
0
125 250 375 500
-0.4 -500 -375 -250 -125
0
125 250 375 500
1000
LOAD CURRENT (A)
LOAD CURRENT (A)
SOURCE CURRENT (A)
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Precision, Low-Power, Low-Dropout, UCSP Voltage Reference MAX6023
Typical Operating Characteristics (continued)
(VIN = +5V for MAX6023EBT12/21/25/30/41/45, VIN = +5.5V for MAX6023EBT50; IOUT = 0; TA = +25C, unless otherwise noted.) (Note 6)
MAX6023EBT12 POWER-SUPPLY REJECTION RATIO vs. FREQUENCY
MAX6023 toc10
MAX6023EBT50 POWER-SUPPLY REJECTION RATIO vs. FREQUENCY
MAX6023 toc11
SUPPLY CURRENT vs. INPUT VOLTAGE
38 36 SUPPLY CURRENT (A) 34 32 30 28 26 24 22 VALID OVER SPECIFIED VIN (MIN) TO VIN (MAX) FOR EACH PART
MAX6023 toc12
100
100
VIN = +5.5V 0.25V
40
10 PSRR (mV/V) PSRR (mV/V)
10
1
1
0.1 0.01 100 1k 10k 100k 1M 10M FREQUENCY (Hz)
0.1 0.01 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz)
20 2 4 6 8 10 12 14 INPUT VOLTAGE (V)
MAX6023EBT12 OUTPUT IMPEDANCE vs. FREQUENCY
MAX6023 toc13
MAX6023EBT50 OUTPUT IMPEDANCE vs. FREQUENCY
MAX6023 toc14
SUPPLY CURRENT vs. TEMPERATURE
MAX6023 toc15
1k
1k
40
OUTPUT IMPEDANCE ()
SUPPLY CURRENT (A)
100
OUTPUT IMPEDANCE ()
100
35 VIN = 12.5V 30 VIN = 7.5V VIN = 5.5V 25 VIN = 2.5V
10
10
1
1
0.1 0.01 0.1 1 10 100 1k 10k 100k 1M FREQUENCY (Hz)
0.1 0.01 0.1 1 10 100 1k 10k 100k 1M FREQUENCY (Hz)
20 -40 -20 0 20 40 60 80 100 TEMPERATURE (C)
MAX6023EBT12 0.1Hz TO 10Hz OUTPUT NOISE
MAX6023 toc16
MAX6023EBT50 0.1Hz TO 10Hz OUTPUT NOISE
MAX6023 toc17
MAX6023EBT12 TURN-ON TRANSIENT
MAX6023 toc18
VIN 1V/div
VOUT 10V/div
VOUT 20V/div
VOUT 1V/div 1s/div 1s/div 10s/div
10
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Precision, Low-Power, Low-Dropout, UCSP Voltage Reference
Typical Operating Characteristics (continued)
(VIN = +5V for MAX6023EBT12/21/25/30/41/45, VIN = +5.5V for MAX6023EBT50; IOUT = 0; TA = +25C, unless otherwise noted.) (Note 6)
MAX6023EBT12 LOAD-TRANSIENT RESPONSE
MAX6023 toc19
MAX6023
MAX6023EBT50 LOAD-TRANSIENT RESPONSE
MAX6023 toc20
MAX6023EBT50 TURN-ON TRANSIENT
MAX6023 toc21
IOUT = 25A IOUT 40A/div
IOUT 50A/div
IOUT = 25A
VIN 2V/div
VOUT 20mV/div
VOUT 50mV/div
VOUT 2V/div
10s/div
20s/div
10s/div
MAX6023EBT12 LOAD-TRANSIENT RESPONSE
MAX6023 toc22
MAX6023EBT50 LOAD-TRANSIENT RESPONSE
MAX6023 toc23 MAX6023 toc25
IOUT 1mA/div
IOUT = 500A
IOUT 500A/div
IOUT = 500A
VOUT 200mV/div VOUT 200V/div
10s/div
20s/div
MAX6023EBT12 LINE-TRANSIENT RESPONSE
VIN = 5V 0.25V VIN 200mV/div
MAX6023 toc24
MAX6023EBT50 LINE-TRANSIENT RESPONSE
VIN = 5.5V 0.25V VIN 200mV/div
VOUT 100mV/div
VOUT 100mV/div
2.5s/div
2s/div
Note 6: Many of the Typical Operating Characteristics of the MAX6023 family are extremely similar. The extremes of these characteristics are found in MAX6023EBT12 (1.25V output) and the MAX6023EBT50 (5.0V output). The Typical Operating Characteristics of the remainder of the MAX6023 family typically lie between these two extremes and can be estimated based on their output voltage. ______________________________________________________________________________________ 11
Precision, Low-Power, Low-Dropout, UCSP Voltage Reference MAX6023
Pin Description
BUMP A1, A3 A2 B1 B3 NAME I.C. GND OUT IN FUNCTION Internally connected. Do not connect to this pin. Ground Reference Output Input Voltage
Output Voltage Hysteresis
Output voltage hysteresis is the change in the output voltage at TA = +25C before and after the device is cycled over its entire operating temperature range. Hysteresis is caused by differential package stress appearing across the bandgap core transistors. The typical temperature hysteresis value is 90ppm.
Turn-On Time
These devices typically turn on and settle within 0.1% of their final value; 30s to 220s depending on the device. The turn-on time can increase up to 1.5ms with the device operating at the minimum dropout voltage and the maximum load.
Detailed Description
The MAX6023 precision bandgap references use a proprietary curvature correction circuit and lasertrimmed thin-film resistor, resulting in a low temperature coefficient of <30ppm/C and initial accuracy of better than 0.2%. These devices can sink and source up to 500A with <200mV of dropout voltage, making them attractive for use in low-voltage applications.
UCSP Information
UCSP Package Consideration
For general UCSP package information and PC layout considerations, refer to the Maxim Application Note: UCSP--A Wafer-Level Chip-Scale Package.
Applications Information
Output/Load Capacitance
The MAX6023 devices do not require an output capacitor for dynamically stable, oscillation-free operation. They are stable for capacitive loads from 0 to 2.2nF. However, in applications where the load or the supply can experience step changes, an output capacitor reduces the amount of overshoot (or undershoot) and improves the circuit's transient response. Many applications do not need an external capacitor and this family offers a significant advantage in these applications when board space is critical.
UCSP Reliability
The UCSP represents a unique package that greatly reduces board space compared to other packages. The chip-scale package represents a unique packaging form factor that may not perform as well as a packaged product through traditional mechanical reliability tests. UCSP reliability is integrally linked to the user's assembly methods, circuit board material, and usage environment. The user should closely review these areas when considering use of a chip-scale package. Performance through operating-life test and moisture resistance remains uncompromised. The wafer-fabrication process primarily determines the performance. Mechanical stress performance is a greater consideration for chip-scale packages. Chip-scale packages are attached through direct solder contact to the user's PC board, foregoing the inherent stress relief of a packaged product lead frame. Solder joint contact integrity must be considered. Comprehensive reliability tests have been performed and are available upon request. In conclusion, the UCSP performs reliably through environmental stresses.
Supply Current
The no-load supply current of these series-mode references is 35A maximum, and is virtually independent of the supply voltage, with only a 0.8A/V variation from the supply voltage. Unlike shunt-mode references that must draw the maximum load current at all times, the load current is drawn from the input voltage source only when required, so supply current is not wasted and efficiency is maximized at all input voltages. This improved efficiency can help reduce power dissipation and extend battery life. When the supply voltage is below the minimum specified input voltage (as during turn-on), the devices can draw up to 200A beyond the nominal supply current. The input voltage source must be capable of providing this current to ensure reliable turn-on.
12
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Precision, Low-Power, Low-Dropout, UCSP Voltage Reference
Pin Configuration
TRANSISTOR COUNT: 70
TOP VIEW (BUMPS ON BOTTOM)
OUT B1 A1 I.C.
Chip Information
MAX6023
MAX6023
A2 GND
IN
B3 UCSP
A3
I.C.
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.
6L, UCSP.EPS
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
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Price & Availability of MAX6023

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