Datasheet > ADP5051

ADP5051

更新时间： 2024-01-12 01:53:47

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
37页	1123K
描述
Integrated Power Solution with Quad Buck

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ADP5051 数据手册

Integrated Power Solution with Quad Buck

Regulators and Supervisory Circuits

ADP5053

Data Sheet

FEATURES

TYPICAL APPLICATION CIRCUIT

ADP5053

Wide input voltage range: 4.5 V to 15.0 V

SYNC/MODE

VREG

INT VREG

1.5% output accuracy over full temperature range

250 kHz to 1.4 MHz adjustable switching frequency

Adjustable/fixed output options via factory fuse

Power regulation

VDD

OSCILLATOR

100mA

FB1

PVIN1

4.5V TO 15V

BST1

SW1

CHANNEL 1

BUCK REGULATOR

(1.2A/2.5A/4A)

VOUT1

COMP1

VREG

Channel 1 and Channel 2: programmable 1.2 A/2.5 A/4 A

sync buck regulators with low-side FET driver

Channel 3 and Channel 4: 1.2 A sync buck regulators

Single 8 A output (Channel 1 and Channel 2 operated in parallel)

Precision enable with 0.8 V accurate threshold

Active output discharge switch

FPWM or automatic PWM/PSM selection

Frequency synchronization input or output

Optional latch-off protection on OVP/OCP failure

Power-good flag on selected channels

UVLO, OCP, and TSD protection

EN1

DL1

SS12

ILIM1

PGND

DL2

ILIM2

PVIN2

VREG

CHANNEL 2

BUCK REGULATOR

(1.2A/2.5A/4A)

VOUT2

SW2

COMP2

BST2

FB2

EN2

PWRGD

PVIN3

BST3

VOUT3

C10

SW3

CHANNEL 3

BUCK REGULATOR

(1.2A)

COMP3

EN3

FB3

PGND3

SS34

Open-drain processor reset with external adjustable

threshold monitoring

Watchdog refresh input

BST4

PVIN4

C12

VOUT4

C13

SW4

FB4

CHANNEL 4

BUCK REGULATOR

(1.2A)

C11

COMP4

EN4

VREG

PGND4

RSTO

VTH

Manual reset input

WDI

WATCHDOG

AND RESET

APPLICATIONS

VOUTx

Small cell base stations

FPGA and processor applications

Security and surveillance

Medical applications

EXPOSED PAD

Figure 1.

GENERAL DESCRIPTION

The ADP5053 combines four high performance buck regulators, a

supervisory circuit, a watchdog timer, and a manual reset in a

48-lead LFCSP package thatmeets demanding performance and

board space requirements. The device enables direct connection

to high input voltagesup to 15.0 V with no preregulators.

The switching frequency of the ADP5053 can be programmed

or synchronized to an external clock. The ADP5053 contains a

precision enable pinon each channel for easy power-up sequencing

or adjustable UVLO threshold.

The ADP5053 contains supervisory circuits that monitorthe

voltage level. The watchdog timer can generate a reset if the

WDI pin is not toggled withina preset timeout period.Processor

reset mode or system power on/off switch mode can be selected

for manual reset functionality.

Channel 1 and Channel 2 integrate high-sidepower MOSFET and

low-side MOSFET drivers.External NFETs can be used in low-side

power devices to achieve an efficiency optimized solution and

deliver a programmable output current of 1.2 A, 2.5A, or 4 A.

Combining Channel 1 and Channel 2 in a parallel configuration

can provide a single outputwith up to 8 A of current.

Table 1. Family Models

Model

Channels

I²C

Package

Channel 3 and Channel 4 integrate both high-side and low-side

MOSFETs to deliver an output current of 1.2 A.

ADP5050 Four bucks, one LDO

ADP5051 Four bucks, supervisory

ADP5052 Four bucks, one LDO

ADP5053 Four bucks, supervisory

ADP5054 Four high current bucks

Ye s 48-Lead LFCSP

48-Lead LFCSP

Rev. B

Document Feedback

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 register ed trademarks 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

Technica l Support

www.analog.com

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与ADP5051相关器件

型号	品牌	获取价格	描述	数据表
ADP5051ACPZ-R7	ADI	获取价格	Integrated Power Solution with Quad Buck Regulators, Supervisory, and I<sup>2</su
ADP5052	ADI	获取价格	5-Channel Integrated Power Solution with Quad Buck Regulators and 200 mA LDO Regulator
ADP5052ACPZ-R7	ADI	获取价格	5-Channel Integrated Power Solution with Quad Buck Regulators and 200 mA LDO Regulator
ADP5052-EVALZ	ADI	获取价格	5-Channel Integrated Power Solution with Quad Buck Regulators and 200 mA LDO Regulator
ADP5053	ADI	获取价格	Wide input voltage range
ADP5053ACPZ-R7	ADI	获取价格	Integrated Power Solution with Quad Buck Regulators and Supervisory Circuits
ADP5053-EVALZ	ADI	获取价格	Integrated Power Solution with Quad Buck
ADP5054	ADI	获取价格	Integrated Power Solution with Quad Buck
ADP5054ACPZ-R7	ADI	获取价格	Quad Buck Regulator Integrated Power Solution
ADP5054-EVALZ	ADI	获取价格	Quad Buck Regulator Integrated Power Solution

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