Datasheet > ADP7104ARDZ-2.5-R7

ADP7104ARDZ-2.5-R7

更新时间： 2024-11-23 07:18:43

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20 V, 500 mA, Low Noise, CMOS LDO

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20 V, 500 mA, Low Noise, CMOS LDO

Data Sheet

ADP7104

FEATURES

TYPICAL APPLICATION CIRCUITS

Input voltage range: 3.3 V to 20 V

Maximum output current: 500 mA

= 5V

VIN

VOUT

= 8V

OUT

CIN

1µF

COUT

1µF

SENSE

Low noise: 15 µV rms for fixed output versions

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

Reverse current protection

Low dropout voltage: 350 mV at 500 mA

Initial accuracy: 0.8%

100kΩ

EN/

UVLO

OFF

GND

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

Low quiescent current (V_IN= 5 V), I_GND= 900 μA with 500 mA load

Low shutdown current: <40 µA at V_IN= 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, 3.3 V,

5 V, and 9 V

Adjustable output from 1.22 V to V_IN− V_DO

Foldback current limit and thermal overload protection

User programmable precision UVLO/enable

Power-good indicator

Figure 1. ADP7104 with Fixed Output Voltage, 5 V

= 5V

VIN

VOUT

ADJ

= 8V

OUT

CIN

1µF

COUT

1µF

40.2kΩ

13kΩ

100kΩ

EN/

UVLO

100kΩ

OFF

GND

8-lead LFCSP and 8-lead SOIC packages

Figure 2. ADP7104 with Adjustable Output Voltage, 5 V

APPLICATIONS

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

GENERAL DESCRIPTION

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.

The ADP7104 output noise voltage is 15 μV rms and is inde-

pendent of the output voltage. A digital power-good output

allows power system monitors to check the health of the output

voltage. A user programmable precision undervoltage lockout

function facilitates sequencing of multiple power supplies.

The ADP7104 is available in 8-lead, 3 mm × 3 mm LFCSP

and 8-lead SOIC packages. The LFCSP offers a very compact

solution and also provides excellent thermal performance for

applications requiring up to 500 mA of output current in a

small, low-profile footprint.

The ADP7104 is available in seven fixed output voltage options

and an adjustable version, which allows output voltages that

range from 1.22 V to V_IN− V_DOvia an external feedback divider.

Rev. B

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rightsof third parties that may result fromits use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks andregisteredtrademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

www.analog.com

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ADP7104ARDZ-2.5-R7 替代型号

型号	品牌	替代类型	描述	数据表
ADP3333ARM-3.3-RL7	ADI	完全替代	High Accuracy Ultralow IQ, 300 mA, anyCAP Low Dropout Regulator
ADP3333ARMZ-2.5-R7	ADI	类似代替	High Accuracy Ultralow IQ, 300 mA, anyCAP® Low Dropout Regulator
ADP7104ARDZ-9.0-R7	ADI	类似代替	20 V, 500 mA, Low Noise, CMOS LDO

与ADP7104ARDZ-2.5-R7相关器件

型号	品牌	获取价格	描述	数据表
ADP7104ARDZ-25	ADI	获取价格	EVAL-AD7903SDZ User Guide UG-609
ADP7104ARDZ-3.0-R7	ADI	获取价格	20 V, 500 mA, Low Noise, CMOS LDO
ADP7104ARDZ-3.3-R7	ADI	获取价格	20 V, 500 mA, Low Noise, CMOS LDO
ADP7104ARDZ-33	ADI	获取价格	EVAL-AD7903SDZ User Guide UG-609
ADP7104ARDZ-5.0-R7	ADI	获取价格	20 V, 500 mA, Low Noise, CMOS LDO
ADP7104ARDZ-9.0-R7	ADI	获取价格	20 V, 500 mA, Low Noise, CMOS LDO
ADP7104ARDZ-R7	ADI	获取价格	20 V, 500 mA, Low Noise, CMOS LDO
ADP7104CP-EVALZ	ADI	获取价格	20 V, 500 mA, Low Noise, CMOS LDO
ADP7104CPZ-REDYKIT	ADI	获取价格	20 V, 500 mA, Low Noise, CMOS LDO
ADP7104RD-EVALZ	ADI	获取价格	20 V, 500 mA, Low Noise, CMOS LDO

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