Datasheet > MP8845

MP8845

更新时间： 2024-02-04 09:42:42

品牌	Logo	应用领域
芯源 - MPS		/
页数	文件大小	规格书
23页	1124K
描述
5A, Highly Efficient, Synchronous, Step-Down Switcher with I2C Interface

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MP8845 数据手册

MP8845

5A, Highly Efficient, Synchronous,

Step-Down Switcher with I²C Interface

DESCRIPTION

FEATURES

The MP8845 is a highly integrated, high-

frequency, synchronous, step-down switcher with

an I²C control interface. The MP8845 can support

up to 5A of load current over a 2.7V to 6V input

supply range with excellent load and line

regulation.



2.7V to 6V Input Voltage Range

Up to 5A Load Current

Internal 28mΩ High-Side and 17mΩ Low-

Side Power MOSFETs

Fixed-Frequency Hysteretic Mode Control

I²C-Compatible Interface up to 3.4Mbps

I²C-Programmable Output Range from 0.6V

to 1.1V in 3.9mV Steps



Fixed-frequency hysteretic control mode provides

an extremely fast transient response without loop

compensation to achieve high efficiency easily

under light-load conditions.



Factory Adjustable Switching Frequency from

1MHz to 2.2MHz

I²C-Programmable Voltage Transition Slew

Rate

The output voltage level can be controlled on-

the-fly through a 3.4Mbps I²C serial interface.

The voltage range can be adjusted from 0.6V to

1.1V in 3.9mV steps. The voltage slew rate,

switching frequency, and power-saving modes

are also selectable through the I²C interface.



Power-Saving Mode Selectable via I²C

Internal Soft Start

Power Good Indicator

Current Overload and Thermal Shutdown

Protection

Available in 20-Ball WLCSP-20 (1.6mmx2mm)

Package

Full protection features include internal soft start,

over-current protection (OCP), and over-

temperature protection (OTP).



APPLICATIONS

The MP8845 requires a minimum number of

readily available, standard, external components

and is available in a compact WLCSP-20

(1.6mmx2mm) package.



Processor Core Supply

Micro Converter

All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive.

For MPS green status, please visit the MPS website under Quality

Assurance. “MPS” and “The Future of Analog IC Technology” are registered

trademarks of Monolithic Power Systems, Inc.

TYPICAL APPLICATION

0.47µH

2.7V ~ 6V

0.6V ~1.1V

V_O

VIN

C1A C1B

C2A C2B

VOUT

MP8845

47µF 47µF

22µF 0.1µF

100k

SDA

I²C Bus

Up to 3.4Mbps

GND

{

SCL

AGND

MP8845 Rev. 1.1

2/23/2017

www.MonolithicPower.com

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

12 3 4 5 6 7...23

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与MP8845相关器件

型号	品牌	获取价格	描述	数据表
MP8845C	MPS	获取价格	5A High Efficient Synchronous Step-Down Switchers with I2C Interface
MP8845CGC	MPS	获取价格	5A High Efficient Synchronous Step-Down Switchers with I2C Interface
MP8845GC	MPS	获取价格	5A, Highly Efficient, Synchronous, Step-Down Switcher with I2C Interface
MP8846	MPS	获取价格	High-Efficiency, 6A, 8V, Synchronous Step-Down Converter with I2C Interface
MP8846GQ	MPS	获取价格	High-Efficiency, 6A, 8V, Synchronous Step-Down Converter with I2C Interface
MP8847	MPS	获取价格	6A, 2.7V-6V, High-Efficiency, Synchronous, Step-Down Switcher with I2C Interface In 2x3mm
MP8847GD	MPS	获取价格	6A, 2.7V-6V, High-Efficiency, Synchronous, Step-Down Switcher with I2C Interface In 2x3mm
MP8848	MPS	获取价格	6A, High-Efficiency, Synchronous, Step-Down Switcher with I2C Interface
MP8848GD	MPS	获取价格	6A, High-Efficiency, Synchronous, Step-Down Switcher with I2C Interface
MP8859	MPS	获取价格	2.8 - 22V VIN, 3A IOUT，4 开关带?I2C 接口的集成升降压变换器

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