Datasheet > 电源电路 > 开关式稳压器或控制器> ADP5023ACPZ-R7

ADP5023ACPZ-R7

更新时间： 2024-11-23 07:18:43

品牌	Logo	应用领域
亚德诺 - ADI		稳压器开关式稳压器或控制器电源电路开关式控制器 PC
页数	文件大小	规格书
28页	814K
描述
Dual 3 MHz, 800 mA Buck

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替代型号

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ADP5023ACPZ-R7 数据手册

Dual 3 MHz, 800 mA Buck

Regulators with One 300 mA LDO

Data Sheet

ADP5023

FEATURES

GENERAL DESCRIPTION

Main input voltage range: 2.3 V to 5.5 V

Two 800 mA buck regulators and one 300 mA LDO

24-lead, 4 mm × 4 mm LFCSP package

Regulator accuracy: 3ꢀ

The ADP5023 combines two high performance buck regulators

and one low dropout (LDO) regulator in a small, 24-lead 4 mm ×

4 mm LFCSP to meet demanding performance and board space

requirements.

Factory programmable or external adjustable VOUTx

3 MHz buck operation with forced PWM and auto PWM/PSM

modes

BUCK1/BUCK2: output voltage range from 0.8 V to 3.8 V

LDO: output voltage range from 0.8 V to 5.2 V

LDO: input supply voltage from 1.7 V to 5.5 V

LDO: high PSRR and low output noise

The high switching frequency of the buck regulators enables tiny

multilayer external components and minimizes the board space.

When the MODE pin is set high, the buck regulators operate in

forced PWM mode. When the MODE pin is set low, the buck

regulators operate in PWM mode when the load current is

above a predefined threshold. When the load current falls below

a predefined threshold, the regulator operates in power save

mode (PSM) improving the light-load efficiency.

APPLICATIONS

Power for processors, ASIC, FPGAs, and RF chipsets

Portable instrumentation and medical devices

Space constrained devices

The two bucks operate out of phase to reduce the input capaci-

tor requirement. The low quiescent current, low dropout voltage,

and wide input voltage range of the ADP5023 LDO extends the

battery life of portable devices. The ADP5023 LDO maintains

power supply rejection greater than 60 dB for frequencies as

high as 10 kHz while operating with a low headroom voltage.

Regulators in the ADP5023 are activated though dedicated

enable pins. The default output voltages can be externally set in

the adjustable version or factory programmable to a wide range

of preset values in the fixed voltage version.

TYPICAL APPLICATION CIRCUIT

AVIN

HOUSEKEEPING

0.1µF

FILT

VOUT1

L1 1µH

VIN1

SW1

FB1

2.3V TO

5.5V

OUT1

800mA

BUCK1

MODE

4.7µF

10µF

PGND1

EN1

OFF

PWM

MODE

PSM/PWM

VOUT2

VIN2

EN2

MODE

L2 1µH

SW2

FB2

OUT2

4.7µF

800mA

BUCK2

10µF

EN2

EN3

PGND2

OFF

EN3

VOUT3

FB3

OUT3

300mA

VIN3

1.7V TO

5.5V

LDO

1µF

ADP5023

AGND

Figure 1.

Rev. A

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

rights of third parties that may result from its 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 and registeredtrademarks arethe 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

12 3 4 5 6 7...28

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ADP5023ACPZ-R7 替代型号

型号	品牌	替代类型	描述	数据表
ADP5024ACPZ-R7	ADI	类似代替	Dual 3 MHz, 1200 mA Buck
ADP5024ACPZ-1-R7	ADI	类似代替	Dual 3 MHz, 1200 mA Buck

与ADP5023ACPZ-R7相关器件

型号	品牌	获取价格	描述	数据表
ADP5023CP-EVALZ	ADI	获取价格	Dual 3 MHz, 800 mA Buck
ADP5024	ADI	获取价格	Dual 3 MHz, 800 mA Buck Regulators with Two 300 mA LDOs
ADP5024ACPZ-1-R7	ADI	获取价格	Dual 3 MHz, 1200 mA Buck
ADP5024ACPZ-R7	ADI	获取价格	Dual 3 MHz, 1200 mA Buck
ADP5024CP-EVALZ	ADI	获取价格	Dual 3 MHz, 1200 mA Buck
ADP5030	ADI	获取价格	双通道、200 mA、高性能RF LDO，内置负载开关
ADP5030ACBZ-1228R7	ADI	获取价格	Dual, 200 mA, High Performance RF LDO with Load Switch
ADP5030ACBZ-1228R7	ROCHESTER	获取价格	DUAL OUTPUT, FIXED POSITIVE LDO REGULATOR, PBGA16, 1.60 X 1.60 MM, 0.40 MM PITCH, ROHS COM
ADP5033	ADI	获取价格	Dual 3 MHz, 800 mA Buck Regulators with Two 300 mA LDOs
ADP5033-1-EVALZ	ADI	获取价格	Dual 3 MHz, 800 mA Buck Regulators with Two 300 mA LDOs

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