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EUP7201 Dual ,Low-Noise,150mA LDO Regulator
DESCRIPTION
The EUP7201 is highly accurate, Dual, low noise, CMOS LDO voltage regulator. Performance features include low output noise, high ripple rejection ratio, low dropout and very fast turn-on times. The EUP7201 is also fully compatible with low ESR ceramic capacitors, reducing cost and improving output stability. This high level of output stability is maintained even during frequent load fluctuations, due to the excellent transient response performance and high PSRR achieved across a broad range of frequencies. The EN function allows the output of each regulator to be turned off independently, resulting in greatly reduced power consumption. The EUP7201 is available in the SOT23-6 , TDFN-6 and USP-6 package.
FEATURES
Up to 150mA Output Current (Each LDO) Dual Shutdown Pins Control Each Output 124gV
RMS
Low Noise Output
Current Limiting and Thermal Protection Short Circuit Protection 100mV Dropout at 100mA Load Current Limiting Protection Available in SOT23-6 ,TDFN-6 and USP-6 Package RoHS Compliant and 100% Lead (Pb)-Free
APPLICATIONS
Cellular Phones Camera, Video Recorders PDAs Hand-held Equipment
Typical Application Circuit
Figure 1.
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Pin Configurations
Package Type Pin Configurations Package Type Pin Configurations
SOT23-6
TDFN-6
Package Type
Pin Configurations
USP-6
Pin Description
PIN EN1 VIN EN2 VOUT2 GND VOUT1 SOT23-6 1 2 3 4 5 6 TDFN-6 3 2 1 6 4 5 USP-6 3 2 1 6 4 5 ON/OFF Control VOUT1 Supply Input ON/OFF Control VOUT2 Channel 2 Output Voltage Ground Channel1 Output Voltage DESCRIPTION
Note: If EN1 and EN2 are both low, both regulators and the reference turn off.
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Block Diagram
Figure 2. Ordering Information
Order Number
EUP7201-1.5/2.8VIR1 EUP7201-1.8/2.8VIR1 EUP7201-1.8/2.6VIR1 EUP7201-1.8/3.3VIR1 EUP7201-2.5/2.8VIR1 EUP7201-2.8/1.2VIR1 EUP7201-2.8/2.8VIR1 EUP7201-2.8/3.0VIR1 EUP7201-2.8/3.3VIR1 EUP7201-3.0/3.0VIR1 EUP7201-3.0/3.3VIR1 EUP7201-3.3/3.3VIR1
Package Type
SOT23-6 SOT23-6 SOT23-6 SOT23-6 SOT23-6 SOT23-6 SOT23-6 SOT23-6 SOT23-6 SOT23-6 SOT23-6 SOT23-6
Marking
N C 1/4
1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4
Operating Temperature range
-40 C to 85C -40 C to 85C -40 C to 85C -40 C to 85C -40 C to 85C -40 C to 85C -40 C to 85C -40 C to 85C -40 C to 85C -40 C to 85C -40 C to 85C -40 C to 85C
N A 1/4 N U 1/4 N H 1/4 N D 1/4 N P 1/4 N M 1/4 N K 1/4 N L 1/4 N N 1/4 N T 1/4 N J 1/4
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Ordering Information (Continued)
Order Number
EUP7201-1.8/2.8JIR1 EUP7201-1.5/2.8UIR1 EUP7201-1.8/2.8UIR1 EUP7201-1.8/2.6UIR1 EUP7201-1.8/3.3UIR1 EUP7201-2.5/2.8UIR1 EUP7201-2.8/1.2UIR1 EUP7201-2.8/2.8UIR1 EUP7201-2.8/3.0UIR1 EUP7201-2.8/3.3UIR1 EUP7201-3.0/3.0UIR1 EUP7201-3.0/3.3UIR1 EUP7201-3.3/3.3UIR1
Package Type
TDFN-6 USP-6 USP-6 USP-6 USP-6 USP-6 USP-6 USP-6 USP-6 USP-6 USP-6 USP-6 USP-6
Marking
xxxxx 7201A xxx NC xxx NA xxx NU xxx NH xxx ND xxx NP xxx NM xxx NK xxx NL xxx NN xxx NT xxx NJ
Operating Temperature range
-40 C to 85C -40 C to 85C -40 C to 85C -40 C to 85C -40 C to 85C -40 C to 85C -40 C to 85C -40 C to 85C -40 C to 85C -40 C to 85C -40 C to 85C -40 C to 85C -40 C to 85C
EUP7201-1/4
/1/4
1/4
1/4
1/4
1/4
Lead Free Code 1: Lead Free 0: Lead Packing R: Tape & Reel Operating temperature range I: Industry Standard Package Type V: SOT23 J: TDFN U:USP
Output Voltage Option * EUP7201-VOUT1/VOUT2 VIRI
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Absolute Maximum Ratings
u u
u
u
u
u
Supply Input Voltage --------------------------------------------------------------------------------------- 6V Power Dissipation, PD @ TA =25J SOT23-6 ------------------------------------------------------------------------------------------------------ 0.4W Package Thermal Resistance SOT23-6, JA ------------------------------------------------------------------------------------------------- 250C/W Lead Temperature (Soldering,10 sec .) -------------------------------------------------------------------- 260C Storage Temperature Range -------------------------------------------------------------------------------- -65C to 150C ESD Rating HBM ---------------------------------------------------------------------------------------------------------- 2kV Supply Input Voltage ----------------------------------------------------------------------------------------- 2.5V to 5.5V
Recommended Operating Conditions
u
u
Enable Input Voltage ----------------------------------------------------------------------------------------- 0V to 5.5V
u
Junction Temperature Range ------------------------------------------------------------------------------- -40C to 125C
Electrical Characteristics
VIN= (VOUT+0.5V) or VIN=2.5V whichever is greater, CIN =COUT=1F , EN1=EN2= VIN. TA=25C. Unless otherwise noted
Symbol
VOUT IMAX ILIM IG VDROP
Parameter
Output voltage Maximum Output Current Current Limit Quiescent Current Dropout Voltage IL=30mA
Conditions
IL=30mA, TA=-40C~85C. Continuous ,TA=-40C~85C. Output Grounded (Steady State) No Load (Both LDOs) IOUT=150mA (Both LDOs) IOUT=30mA IOUT=100mA, TA=-40C~85C. 1mA< IOUT < 150mA VIN=VOUT+0.5V to 5.5V IOUT=1mA VIN=2.5V to 5.5V, TA=-40C~85C. VIN=2.5V to 5.5V, TA=-40C~85C. EN=GND or VIN EN1=EN2=GND
EUP7201 Min Typ Max.
-2 -3 150 180 300 110 260 30 80 13 0.02 1.6 0.4 0.1 0.01 155 15 1 220 60 0.2 180 2 3
Unit
% mA mA A A mV mV mV %/V V V A A J J dB
G VOUT Load Regulation G VLINE Line Regulation VIH VIL ISD IGSD TSD G TSD PSRR EN Input High Threshold EN Input Low Threshold EN Input Bias Current Shutdown Supply Current Thermal Shutdown Temperature Thermal Shutdown Hysteresis Ripple Rejection Rate
VIN=(VOUT+1V) DC+0.5V p-p AC IOUT=1mA, f=1kHz
60
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Typical Operating Characteristics
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Application Note
External Capacitors Like any low-dropout regulator, the EUP7201 requires external capacitors for regulator stability. The EUP7201 is specifically designed for portable applications requiring minimum board space and smallest components. These capacitors must be correctly selected for good performance. Input Capacitor An input capacitance of 1F is required between the EUP7201 input pin and ground (the amount of the capacitance may be increased without limit). This capacitor must be located a distance of not more than 1cm from the input pin and returned to a clean analog ground. Any good quality ceramic, tantalum, or film capacitor may be used at the input. If a tantalum capacitor is used at the input, it must be guaranteed by the manufacturer to have a surge current rating sufficient for the application. There are no requirements for the ESR on the input capacitor, but tolerance and temperature coefficient must be considered when selecting the capacitor to ensure the capacitance will be 1F over the entire operating temperature range. Output Capacitor The EUP7201 is designed specifically to work with very small ceramic output capacitors. A ceramic capacitor (temperature characteristics X7R, X5R, Z5U, or Y5V) in 1 to 22F range with 5m to 500m ESR range is suitable in the EUP7201 application circuit. The output capacitor must meet the requirement for minimum amount of capacitance and also have an ESR (Equivalent Series Resistance) value which is within a stable range (5m to 500m) No-Load Stability The EUP7201 will remain stable and in regulation with no external load. This is specially important in CMOS RAM keep-alive applications. Capacitor Characteristics The EUP7201 is designed to work with ceramic capacitors on the output to take advantage of the benefits they offer: for capacitance values in the range of 1F to 4.7F range, ceramic capacitors are the smallest, least expensive and have the lowest ESR values (which makes them best for eliminating high frequency noise). The ESR of a typical 1F ceramic capacitor is in the range of 20m to 40m, which easily meets the ESR requirement for stability by the EUP7201. The ceramic capacitor's capacitance can vary with temperature. The capacitor type X7R, which operates over a temperature range of -55C to +125C, will only vary the capacitance to within 15%. Most large value ceramic capacitors ( 2.2F) are manufactured with Z5U or Y5V temperature characteristics. Their capacitance can drop by more than 50% as the temperature goes from 25C to 85C. Therefore, X7R is recommended over Z5U and Y5V in applications where the ambient temperature will change significantly above or below 25C. On/Off Input Operation The EUP7201 is turned off by pulling the VEN pin low, and turned on by pulling it high. If this feature is not used, the VEN pin should be tied to VIN to keep the regulator output on at all time. To assure proper operation, the signal source used to drive the VEN input must be able to swing above and below the specified turn-on/off voltage thresholds listed in the Electrical Characteristics section under VIL and VIH.
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Packaging Information
SOT23-6
SYMBOLS A A1 b D E1 e E L
MILLIMETERS MIN. 0.00 0.30 2.90 1.60 0.95 2.60 0.30 3.00 0.60 0.102 0.012 MAX. 1.45 0.15 0.50 MIN. 0.000 0.012
INCHES MAX. 0.057 0.006 0.020 0.114 0.063 0.037 0.118 0.024
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TDFN-6
DETAIL A
SYMBOLS A A1 b D D1 E E1 e L
MILLIMETERS MIN. MAX. 0.70 0.80 0.00 0.05 0.30 0.50 2.90 3.10 2.30 2.90 3.10 1.50 0.95 0.38 0.58
INCHES MIN. 0.028 0.000 0.012 0.114 0.090 0.114 0.059 0.037 0.015 0.023 0.122 MAX. 0.031 0.002 0.020 0.122
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USP-6
SYMBOLS A A1 b b1 D D1 E E1 e L
MILLIMETERS MIN. MAX. 0.70 0.80 0.00 0.05 0.10 0.30 0.20 0.40 1.70 1.90 1.50 1.90 2.10 0.90 0.50 0.15 0.35
INCHES MIN. 0.028 0.000 0.004 0.008 0.067 0.059 0.075 0.035 0.020 0.006 0.014 0.083 MAX. 0.031 0.002 0.012 0.016 0.075
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