Datasheet > MP5470

MP5470

更新时间： 2024-04-09 19:03:29

品牌	Logo	应用领域
芯源 - MPS		/
页数	文件大小	规格书
40页	1113K
描述
4V-16V 电源管理IC，集成了 3A/3A/2A/2A 4个Buck 降压变换器，可通过 I2C接口和 MTP灵活设置系统

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数据手册

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MP5470 数据手册

MP5470 – 12V DIGITAL PMIC WITH I²C AND MTP

PACKAGE REFERENCE

TOP VIEW

FB1 SGND1 GPIO

AGND FB4 NC

19 18 17

VIN1

SW1

16 VCC

15 SW4

GND

14 GND

13 SW3

SW2

VIN2

EN/

SYNCI

FB2 SCL SDA

SGND2 FB3 NC

QFN-22 (3mmx4mm)

PIN FUNCTIONS

Package

Pin #

Name

Description

Supply voltage input of buck 1 and buck 4. The MP5470 operates from a 4V to

16V input rail. Use a ceramic capacitor to decouple the input rail. Connect VIN1 using

a wide PCB trace. VIN1 and VIN2 should be connected together.

VIN1

3, 14

SW1

GND

SW2

Buck1 switch output. Connect SW1 using a wide PCB trace.

Power ground. GND requires special consideration during the PCB layout. Connect

GND with copper traces and vias.

Buck 2 switch output. Connect SW2 using a wide PCB trace.

Supply voltage input of buck 2 and buck 3. The MP5470 operates from a 4V to

16V input rail. Use a ceramic capacitor to decouple the input rail. Connect VIN2 using

a wide PCB trace. VIN1 and VIN2 should be connected together.

VIN2

Feedback of buck 2. Connect buck 2’s output to FB2 directly or through a feedback

resistor divider.

FB2

SCL

SDA

I²C clock signal input.

I²C data.

Remote sense ground of buck 3 and buck 4. Kelvin-connect SGND2 to buck 3 and

buck 4's output capacitor's ground node.

SGND2

Feedback of buck 3. Connect buck 3’s output to FB3 directly or through a feedback

resistor divider.

FB3

11, 17

No connection.

Enable control pin. Pull EN/SYNCI to logic high to enable the MP5470. Pull

EN/SYNCI to logic low to disable the MP5470. EN has a 2MΩ internal pull-down

resistor. Apply a clock on EN/SYNCI to synchronize the switching frequency to the

external clock.

EN/SYNCI

MP5470 Rev. 1.0

2/28/2019

www.MonolithicPower.com

MPS 专有信息。受专利保护。未经授权，请勿影印及复制。

1 2 345 6 7...40

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