EV8845-C-02A

5A High Efficient Synchronous

Step-Down Switcher with I²C Interface

EV8845-C-02A Rev.1.0

www.MonolithicPower.com

1

12/27/2016

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

Preliminary Specifications Subject to Change

© 2016 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The EV8845-C-02A is used for demonstrating

the performance of MPS’s MP8845. MP8845 is

a

highly

integrated

and

high

frequency

synchronous step-down switcher with I2C

control interface. It is optimized to support up to

5A load current over an input supply range from

2.7V to 6V with excellent load and line

regulation.

Constant frequency hysteretic control mode

provides extremely fast transient response and

high efficiency. The output voltage level can be

controlled, on-the fly through a 3.4Mbps I2C

serial interface. Voltage range can be adjusted

from 0.6V to 1.1V in 3.9mV steps. Voltage slew

rate, switching frequency and power savings

mode are also selectable through the I2C

interface. Fully protection features includes

internal soft start, over current protection and

over temperature protection.

MP8845 is available in WLCSP20-1.6mmx2mm

package.

ELECTRICAL SPECIFICATION

Parameter

Symbol

Value

Units

Input Voltage

2.7– 6

V

Output Voltage

0.9

V

Output Current

5

A

FEATURES

 Wide 2.7V to 6V Operating Input Range

 Up to 5A Load Current

 Internal 28mΩ High-Side, 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

 Factory Adjustable Switching Frequency

from 1MHz to 2.2MHz

 I2C Programmable Voltage Transition Slew

Rate

 Power Saving Mode Selectable via I2C

 Internal Soft-Start

 Power Good Indicator

 Current Overload and Thermal Shutdown

Protection

 Available in 20-ball WLCSP-1.6mmx2mm

package

APPLICATIONS

 Processor Core Supply

 Micro Converter

All MPS parts are lead-free and adhere to the RoHS directive. For MPS green

status, please visit MPS website under Products, Quality Assurance page.

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

Monolithic Power Systems, Inc.

EV8845-C-02A EVALUATION BOARD

Board Number

MPS IC Number

EV8845-C-02A

MP8845GC

0

10

20

30

40

50

60

70

80

90

100

0.01

0.1

1

10

OUTPUT CURRENT (A)

Efficiency (PFM vs. PWM)

PWM

PFM