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Impala Linear Corporation
ILC7071
100mA SOT-23-5 Ultra Low Noise CMOS RF-LDOTM Regulator
General Description The ILC7071 is a 100mA, Ultra Low Noise, Low Dropout (LDO) linear regulator, designed and processed in Impala's proprietary CMOS process technology. This process combines the best CMOS features of low quiescent current, small size and low dropout voltage with the best bipolar features of high ripple rejection, ultra low noise and power handling capability. The ILC7071 offers a quiescent current of less than 100A, a logic level enable (regulator on/off) pin, and a low dropout voltage of 50mV at 10mA. With better than 70dB (1kHz) of ripple rejection, ultra low noise of 10VRMS and 1% output voltage accuracy, the ILC7071 sets a new standard in linear regulators for communications and personal electronics applications. The ILC7071 is designed to operate with small, low cost, ceramic capacitors and is stable over a wide range of ESR values. In addition to the output capacitor, the ILC7071 requires only a 1F input capacitor. The enable pin can be tied to VIN for easy device layout. The ILC7071 is available in a number of fixed output voltages ranging from 2.5V to 8V. An adjustable version will be available shortly. The ILC7071 is ideally suited for use in small size cordless and cellular handsets as well as many other low battery powered electronic devices. Please contact Impala for samples and application information.
Features * 1% output voltage accuracy * Only 10VRMS noise from 300Hz to 100kHz * Uses low ESR ceramic or Tantalum output capacitor to minimize noise and output ripple * Only 90A ground current at 100mA load * Ripple rejection up to 70dB at 1kHz, 60dB at 1MHz * Excellent line and load transient response * Guaranteed to 100mA output current * Industry standard five lead SOT-23-5 packages * Fixed 2.8V, 3.0V, 3.3V, 3.6V, 4.7V, 5.0V, output voltage options * Metal mask option available for custom voltages between 2.5V and 8V Applications * * * * Cellular phones Wireless communicators PDAs / palmtops / organizers Battery powered portable electronics
Typical Circuit
VOUT 5 4 CBYPASS
Ordering Information
(TA = -40C to +85C)
COUT
ILC7071AIM5
ILC7071AIM5-X
100mA, fixed voltage, SOT-23 package
1
2
3 ON/OFF
+ CIN
Note: Fixed voltage options are defined by 2-digit code as shown in the package markings information section of the data sheet.
Impala Linear Corporation
ILC7071 1.4
(408) 574-3939
www.impalalinear.com
Dec 2000
1
100mA SOT-23-5 Ultra Low Noise CMOS RF-LDOTM Regulator
Preliminary
Pin Description ILC7071 (fixed voltage version)
Pin Number 1 2 3 4 5 Pin Name VIN GND On/Off CNOISE VOUT Connect Directly to Supply Ground pin. Local ground for COUT On > 1.0V, off < 0.4V. Can be connected to VIN Noise Bypass Capacitor. Do Not Pin Connect Directly to GND Regulator Output, Connect COUT between this pin and the GND (pin 3) Pin Description
Pin Package Configurations
5 4
ILC7071AIM5
1
2
3
Parameter Input Voltage ILC7071 ON/OFF Input Voltage Output Current Output Voltage Package Power Dissipation Maximum Junction Temp. Range Storage Temperature Operation Ambient Temperature
Symbol VIN VON/OFF IOUT VOUT PD TJ(MAX) TSTG TAMB
Ratings -0.3 to 9V -0.3 to VIN Short Circuit Protected -0.3 to VIN +0.3 TBD -40 to +125 -40to +125 -40 to +85
Units V V mA V mW C C C
Impala Linear Corporation
ILC7071 1.4
(408) 574-3939
www.impalalinear.com
Dec 2000
2
100mA SOT-23-5 Ultra Low Noise CMOS RF-LDOTM Regulator
Preliminary
Electrical Characteristics ILC7071
Unless otherwise specified, all limits are at TA = 25C, VIN = VOUT(NOM) + 1V, IOUT = 1mA, COUT = 1F, VON/OFF = 2V
Parameter Input Voltage Range Output Voltage Accuracy Line Regulation VOUT/(VOUT*VIN) VIN VOUT VDO VOUT (NOM) + < 8V IOUT = 10a IOUT = 10mA IOUT = 20mA IOUT = 100mA IOUT = 0mA IOUT = 10mA IOUT =100mA VON/OFF = 0V High = Regulator On Low = Regulator Off VON/OFF 0.6V Regulator OFF VON/OFF 2V Regulator ON VOUT S 0.95V
OUT (NOM), tPW
Symbol VIN
Conditions
Typ 2.5-8 1 0.007 0.1 50 70 235 66 67 90 0.1 1.5 0.6 0.3 1 120
Units V % %/V
Dropout Voltage (Note 3)
mV
Ground Pin Current Shutdown (OFF) Current ON/OFF Input Voltage ON/OFF Pin Input Current (Note 5) Peak Output Current (Note 4)
IGND ION/OFF VON/OFF IIN ON/OFF IOUT (peak)
A A V A mA
= 2ms
Output Noise Voltage (RMS)
eN
VOUT/VIN VOUT(line) VOUT(load) ISC
BW = 300Hz to 50kHz, CIN = 1F CNOISE = 0.01F, COUT = 1.0F, IOUT = 10mA COUT = 1.0F IOUT = 100mA VIN: VOUT (NOM) + 1V to VOUT (NOM) + 2V, tr/tf = 2s; IOUT = 80mA IOUT: 1mA to 100mA; tr,5S VOUT = 0V Freq = 1kHz Freq = 10kHz Freq = 1MHz
TBD 70 50 65 14 40 200 1.5
Vrms
Ripple Rejection
dB mv mV mA k
Dynamic Line Regulation Dynamic Load Regulation Short Circuit Current Resistance Shutdown Discharge
Note1: Absolute maximum ratings indicate limits which when exceeded may result in damage to the component. Electrical specifications do not apply when operating the device outside of its rated operating conditions. Note 2: Specified Min/Max limits are production tested or guaranteed through correlation based on statistical control methods. Measurements are taken at constant junction temperature as close to ambient as possible using low duty pulse testing. Note 3: Dropout voltage is defined as the input to output differential voltage at which the output voltage drops 2% below the nominal value measured with a 1V differential. Note 4: Guaranteed by design Note 5: The device's shutdown pin includes a 2M internal pull down resistor connected to ground.
Impala Linear Corporation
ILC7071 1.4
(408) 574-3939
www.impalalinear.com
Dec 2000
3
100mA SOT-23-5 Ultra Low Noise CMOS RF-LDOTM Regulator
Preliminary
SOT-23-5 Package Markings ILC7071AIM5-xx
Output Voltage (V) 2.8 3.0 3.3 3.6 4.7 5.0 Grade A A A A A A Order Information ILC7071AIM5-28 ILC7071AIM5-30 ILC7071AIM5-33 ILC7071AIM5-36 ILC7071AIM5-47 ILC7071AIM5-50 Supplied As: 3K Units on Tape and Reel 3K Units on Tape and Reel 3K Units on Tape and Reel 3K Units on Tape and Reel 3K Units on Tape and Reel 3K Units on Tape and Reel
*NOTE: First two characters identify the product and the last two characters identify the datecode
Package Outline Dimensions
Dimensions shown in inches and (mm) 5-Lead plastic surface mount (SOT-23-5)
0.122 (3.10) 0.106 (2.70)
0.071 (1.80) 0.055 (1.40)
0.118 (3.00) 0.102 (2.60)
PIN 1 0.037 (0.95) BSC
0.055 (1.40) 0.0393 (1.0)
0.057 (1.45) 0.035 (0.90) 10 0 0.0217 (0.55) 0.0138 (0.35)
ILC7071 fig. 3
0.0059 (0.15) 0.0019 (0.05)
0.019 (0.50) 0.0138 (0.35)
SEATING PLANE
0.0078 (0.2) 0.0031 (0.08)
Devices sold by Impala Linear Corporation are covered by the warranty and patent indemnification provisions appearing in its Terms of Sale only. Impala Linear Corporation makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. Impala Linear Corporation makes no warranty of merchantability or fitness for any purpose. Impala Linear Corporation reserves the right to discontinue production and change specifications and prices at any time and without notice. This product is intended for use in normal commercial applications. Applications requiring an extended temperature range, unusual environmental requirements, or high reliability applications, such as military and aerospace, are specifically not recommended without additional processing by Impala Linear Corporation. Impala Linear Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in an Impala Linear Corporation product. No other circuits, patents, licenses are implied.
Life Support Policy Impala Linear Corporation's products are not authorized for use as critical components in life support devices or systems. 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 2. A critical component is any component of a life support dice or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
Impala Linear Corporation
ILC7071 1.4
(408) 574-3939
www.impalalinear.com
Dec 2000
4

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