ADP1754ACPZ-1.1-R7

1.2 A ，低VIN ，低压差线性稳压器 1.2 A, Low VIN, Low Dropout Linear Regulator

GENERAL DESCRIPTION

The ADP1754/ADP1755 are low dropout LDO CMOS linear regulators that operate from 1.6 V to 3.6 V and provide up to 1.2  A of output current. These low VIN/VOUT LDOs are ideal for regulation of nanometer FPGA geometries operating from 2.5 V down to 1.8 V I/O rails, and for powering core voltages down to 0.75 V. Using an advanced proprietary architecture, the ADP1754/

ADP1755 provide high power supply rejection ratio PSRR and low noise, and achieve excellent line and load transient response with only a small 4.7 µF ceramic output capacitor.

FEATURES

Maximum output current: 1.2 A

Input voltage range: 1.6 V to 3.6 V

Low shutdown current: <2 µA

Very low dropout voltage: 105 mV @ 1.2 A load

Initial accuracy: ±1%

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

7 fixed output voltage options with soft start 0.75 V to 2.5 V ADP1754

Adjustable output voltage option with soft start 0.75 V to 3.3 V ADP1755

High PSRR

   65 dB @ 1 kHz

   65 dB @ 10 kHz

   54 dB @ 100 kHz

23 μV rms at 0.75 V output

Stable with small 4.7 µF ceramic output capacitor

Excellent load and line transient response

Current-limit and thermal overload protection

Power-good indicator

Logic-controlled enable

Reverse current protection