Datasheet > 电源电路 > 开关式稳压器或控制器> ADP5022ACBZ-4-R7

ADP5022ACBZ-4-R7

更新时间： 2024-11-23 06:36:23

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	668K
描述
Dual 3 MHz, 600 mA Buck Regulator with 150 mA LDO

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中文翻译

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数据手册
替代型号

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ADP5022ACBZ-4-R7 数据手册

Dual 3 MHz, 600 mA Buck

Regulator with 150 mA LDO

ADP5022

FEATURES

GENERAL DESCRIPTION

Input voltage range: 2.4 V to 5.5 V

Tiny 16-ball, 2 mm × 2 mm WLCSP package

Overcurrent and thermal protection

Soft start

Factory programmable undervoltage lockout on VDDA

system supply of either 2.2 V or 3.9 V

Factory programmable default output voltages for all

3 channels

Buck1 and Buck2 key specifications

Current mode architecture for excellent transient response

3 MHz operating frequency

Uses tiny multilayer inductors and capacitors

Forced PWM and auto PWM/PSM modes

Out-of-phase operation for reduced input filtering

100% duty cycle low dropout mode

24 μA typical quiescent current per channel, no switching

LDO key specifications

The ADP5022 is a micro power management unit (micro PMU)

that combines two high performance buck regulators and a low

dropout regulator (LDO) in a tiny 16-ball 2.08 mm × 2.08 mm

WLCSP to meet demanding performance and board space

requirements.

The high switching frequency of the buck regulators enables

tiny multilayer external components and minimizes the board

space required. When the MODE pin is set high, the buck reg-

ulators operate in forced PWM mode. When the MODE pin is

set low, the buck regulators automatically switch operating

modes, depending on the load current level. At higher output

loads, the buck regulators operate in PWM mode. When the

load current falls below a predefined threshold, the regulators

operate in power save mode (PSM), improving the light-load

efficiency.

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

capacitor requirement and noise.

Stable with 1 μF ceramic output capacitors

High PSRR

60 dB up to 10 KHz

The low quiescent current, low dropout voltage, and wide input

voltage range of the ADP5022 LDO extends the battery life of

portable devices. The LDO maintains power supply rejection

greater than 60 dB for frequencies as high as 10 kHz while

operating with a low headroom voltage.

Low output noise

65 μV rms output noise at VOUT3 = 3.3 V

Low dropout voltage: 150 mV @ 150 mA load

11 μA typical ground current at no load

Each regulator in the ADP5022 has a dedicated, independent

enable pin. A high voltage level applied to the enable pin activates

the respective regulator. The default output voltages are factory

programmable and can be set to a wide range of options.

APPLICATIONS

USB devices

Handheld products

Multivoltage power for processors, ASICS, FPGAs,

and RF chipsets

ADP5022

COUT_3

1µH

SW1

OUT1

600mA

VIN1

EN1

= 2.4V

TO 5.5V

VOUT1

PGND1

BUCK1

4.7µF

10µF

OFF

EN_BK1

MODE

PWM

MODE

PWM/PSM

VIN2

1µH

4.7µF

SW2

MODE

OUT2

600mA

VOUT2

PGND2

BUCK2

5.0mm

EN2

VDDA

VIN3

10µF

OFF

EN_BK2

1µF

VOUT3

LDO1

EN_LDO1

OUT3

150mA

EN3

1µF

COUT_1 COUT_2

4.7mm

AGND

Figure 1. Typical Applications Circuit

Figure 2. Typical PCB Layout

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

Fax: 781.461.3113

www.analog.com

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ADP5022ACBZ-4-R7 替代型号

型号	品牌	替代类型	描述	数据表
ADP5022ACBZ-2-R7	ADI	完全替代	Dual 3 MHz, 600 mA Buck Regulator with 150 mA LDO

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ADP5024ACPZ-R7	ADI	获取价格	Dual 3 MHz, 1200 mA Buck
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ADP5030	ADI	获取价格	双通道、200 mA、高性能RF LDO，内置负载开关
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