深圳市中立信电子科技有限公司

ADP7104ARDZ-3.3-R7

低压差稳压器 20V 500mA CMOS LDO Low Noise

20 V, 300 mA, Low Noise, CMOS LDO

GENERAL DESCRIPTION ADP7104ARDZ

The ADP7104 is a CMOS, low dropout linear regulator that operates

from 3.3 V to 20 V and provides up to 500 mA of output

current. This high input voltage LDO is ideal for regulation of

high performance analog and mixed signal circuits operating

from 19 V to 1.22 V rails. Using an advanced proprietary architecture,

it provides high power supply rejection, low noise, and

achieves excellent line and load transient response with just a

small 1 μF ceramic output capacitor.

FEATURES ADP7104ARDZ

Input voltage range: 3.3 V to 20 V

Maximum output current: 500 mA

Low noise: 15 μV rms for fixed output versions

PSRR performance of 60 dB at 10 kHz, VOUT = 3.3 V

Reverse current protection

Low dropout voltage: 350 mV at 500 mA

Initial accuracy: ±0.8%

Accuracy over line, load, and temperature: −2%/+1%

Low quiescent current (VIN = 5V), IGND= 900 μA with 500 mAload

Low shutdown current: <40 μA at VIN = 12 V, stable with small

1 μF ceramic output capacitor

7 fixed output voltage options: 1.5 V, 1.8 V, 2.5 V, 3 V, 3.3V, 5 V, and 9 V

Adjustable output from 1.22 V to VIN − VDO

Foldback current limit and thermal overload protection

User programmable precision UVLO/enable

Power-good indicator

8-lead LFCSP and 8-lead SOIC packages

APPLICATIONS ADP7104ARDZ

Regulation to noise sensitive applications: ADC, DAC circuits,

precision amplifiers, high frequency oscillators, clocks,

and PLLs

Communications and infrastructure

Medical and healthcare

Industrial and instrumentation