150 mA, Low Dropout,

CMOS Linear Regulator

ADP1710/ADP1711

Rev. 0

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FEATURES

Maximum output current: 150 mA

Input voltage range: 2.5 V to 5.5 V

Light load efficient

Low shutdown current: <1 μA

Low dropout voltage: 150 mV @ 150 mA load

Initial accuracy: ±1%

Accuracy over line, load, and temperature: ±2%

Stable with small 1μF ceramic output capacitor

16 fixed output voltage options: 0.75 V to 3.3 V (ADP1710)

Adjustable output voltage option: 0.8 V to 5.0 V

(ADP1710 Adjustable)

16 fixed output voltage options with reference bypass:

0.75 V to 3.3 V (ADP1711)

High PSRR: 69 dB @ 1 kHz

Excellent load/line transient response

Current limit and thermal overload protection

Logic controlled enable

5-lead TSOT package

APPLICATIONS

Mobile phones

Digital camera and audio devices

Portable and battery-powered equipment

Post dc-dc regulation

TYPICAL APPLICATION CIRCUITS

IN

GND

EN

OUT

NC

1

2

3

5

4

ADP1710

NC = NO CONNECT

1µF

1µF

Figure 1. ADP1710 with Fixed Output Voltage, 3.3 V

IN

GND

EN

OUT

ADJ

1

2

3

5

4

ADP1710

ADJUSTABLE

1µF

1µF

R1

R2

Figure 2. ADP1710 with Adjustable Output Voltage, 0.8 V to 5.0 V

IN

GND

EN

OUT

BYP

1

2

3

5

4

ADP1711

1µF

1µF

10nF

Figure 3. ADP1711 with Fixed Output Voltage and Bypass Capacitor, 3.3 V

GENERAL DESCRIPTION

The ADP1710/ADP1711 are low dropout linear regulators

that operate from 2.5 V to 5.5 V and provide up to 150 mA of

output current. Utilizing a novel scaling architecture, ground

current drawn is a very low 40 μA, when driving a 100 μA

load, making the ADP1710/ADP1711 ideal for battery-

operated portable equipment.

The ADP1710 and the ADP1711 are each available in sixteen

fixed output voltage options. The ADP1710 is also available in

an adjustable version, which allows output voltages that range

from 0.8 V to 5 V via an external divider. The ADP1711 allows

for a reference bypass capacitor to be connected, which reduces

output voltage noise and improves power supply rejection.

The ADP1710/ADP1711 are optimized for stable operation with

small 1 μF ceramic output capacitors, allowing for good transient

performance while occupying minimal board space. An enable

pin controls the output voltage on both devices. There is also an

under-voltage lockout circuit on both devices, which disables the

regulator if IN drops below a minimum threshold.

An internal soft start gives a typical start-up time of 80 μs.

Short-circuit protection and thermal overload protection

circuits prevent damage to the devices in adverse conditions.

Both the ADP1710 and the ADP1711 are available in tiny

5­lead TSOT packages, for the smallest footprint solution to all

your power needs.