Datasheet ADP1712, ADP1713, ADP1714 (Analog Devices)

300 mA, Low Dropout CMOS Linear Regulator ADP1712/ADP1713/ADP1714 FEATURES TYPICAL APPLICATION CIRCUITS Maximum output current: 300 mA ADP1712 V V Input voltage range: 2.5 V to 5.5 V IN = 5V OUT = 3.3V 1 IN OUT 5 Light load efficient 2.2µF 2.2µF I 2 GND GND = 75 μA with 100 μA load 10nF Low shutdown current: <1 μA 3 EN SS 4
-001 5 45
Very low dropout voltage: 170 mV @ 300 mA load
06
Initial accuracy: ±1%
Figure 1. ADP1712 with Fixed Output Voltage and Soft-Start Capacitor, 3.3 V
Accuracy over line, load, and temperature: ±2% ADP1712 16 fixed output voltage options with soft start: ADJUSTABLE VOUT = 0.8V(1 + R1/R2) VIN = 5.5V 0.75 V to 3.3 V (ADP1712) 1 IN OUT 5 2.2µF Adjustable output voltage option: 0.8 V to 5.0 V 2.2µF 2 GND (ADP1712 Adjustable) R1 3 EN ADJ 4 16 fixed output voltage options with reference bypass: R2 0.75 V to 3.3 V (ADP1713)
002 06455-
16 fixed output voltage options with tracking:
Figure 2. ADP1712 with Adjustable Output Voltage, 0.8 V to 5.0 V
0.75 V to 3.3 V (ADP1714) Low output noise: 40 μV rms ADP1713 VIN = 3V VOUT = 0.75V High PSRR: 72 dB @ 1 kHz 1 IN OUT 5 Stable with small 2.2 μF ceramic output capacitor 2.2µF 2 GND 2.2µF Excellent load/line transient response 10nF Current limit and thermal overload protection 3 EN BYP 4
-003 5 45 06
Logic controlled enable
Figure 3. ADP1713 with Fixed Output Voltage and Bypass Capacitor, 0.75 V
5-lead TSOT package ADP1714 APPLICATIONS V V V IN = 3V OUT OUT (V) 1 IN OUT 5 Mobile phones 2.2µF 2.2µF 3 Digital camera and audio devices 2 GND 2 Portable and battery-powered equipment 1 3 EN TRK 4
4 0 0
Post dc-dc regulation 0V TO 5V 0 1 2 3 4 5
5- 45
VTRK (V)
06 Figure 4. ADP1714 with Output Voltage Tracking
GENERAL DESCRIPTION
The ADP1712/ADP1713/ADP1714, available in a tiny, 5-lead soft-start time. The ADP1713 allows a reference bypass capacitor TSOT package, are low dropout linear regulators that operate to be connected, which reduces output voltage noise and from 2.5 V to 5.5 V and provide up to 300 mA of output current. improves power supply rejection. The ADP1714 includes a The low 170 mV dropout voltage at a 300 mA load improves tracking feature, which allows the output to follow an external efficiency and allows operation over a wide input voltage range. voltage rail or reference. Using a novel scaling architecture, ground current is a very low The ADP1712/ADP1713/ADP1714 are optimized for stable 75 μA when driving a 100 μA load, making the ADP1712/ operation with small 2.2 μF ceramic output capacitors, allowing ADP1713/ADP1714 ideal for battery-operated portable equipment. good transient performance while occupying minimal board The ADP1712/ADP1713/ADP1714 are available in 16 fixed space. An enable pin controls the output voltage on all devices, output voltage options. The ADP1712 is also available in an and an undervoltage lockout circuit disables the regulator if IN adjustable version, which allows output voltages that range from drops below a minimum threshold. The parts also have short 0.8 V to 5 V via an external divider. The ADP1712 fixed version circuit protection and thermal overload protection, which allows an external capacitor to be connected to program the prevent damage to the devices in adverse conditions.
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Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUITS GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION SOFT-START FUNCTION (ADP1712) ADJUSTABLE OUTPUT VOLTAGE(ADP1712 ADJUSTABLE) BYPASS CAPACITOR (ADP1713) TRACK MODE (ADP1714) ENABLE FEATURE UNDERVOLTAGE LOCKOUT (UVLO) APPLICATION INFORMATION CAPACITOR SELECTION Output Capacitor Input Bypass Capacitor Input and Output Capacitor Properties CURRENT LIMIT AND THERMAL OVERLOAD PROTECTION THERMAL CONSIDERATIONS PRINTED CIRCUIT BOARD LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE