EV9928-L-00C

60V Current Mode, Synchronous

Step-Down Controller Evaluation Board

EV9928-L-00C Rev. 1.01

www.MonolithicPower.com

1

11/21/2016

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

© 2016 MPS. All Rights Reserved.

DESCRIPTION

The

EV9928-L-00C

Evaluation

Board

is

designed to demonstrate the capabilities of

MP9928.

The

MP9928

is

a

high-voltage,

synchronous step-down controller that directly

steps down voltages from up to 60V. The

MP9928 uses PWM current control architecture

with accurate cycle-by-cycle current limiting and

is capable of driving dual N-channel MOSFETs.

The operating frequency of the MP9928 can be

programmed

by

an

external

resistor

or

synchronized to an external clock for noise

sensitive applications. Full protection features

include precision output over-voltage protection

(OVP), output over-current protection (OCP),

and thermal shutdown.

The MP9928 is available in TSSOP20-EP and

QFN-20 (3mmx4mm) packages. This board is

available in QFN-20 (3mmx4mm) package.

ELECTRICAL SPECIFICATION

Parameter

Symbol

Value

Units

Input Voltage

6-60

(1)

V

Output Voltage

5

V

Output Current

7

A

FEATURES

 6V to 60V Input Voltage for This 5V Output

Board

 Dual N-Channel MOSFET Driver

 Low Dropout Operation: Maximum Duty

Cycle at 99.5%

 180ºOut-of-Phase SYNCO Output

 Programmable Soft Start

 Output Power Good Indicator

 Selectable Threshold for Cycle-by-Cycle

Current Limit

 Programmable Frequency Range: 100kHz-

1000kHz

 External Power Bias Option for Vcc Supply

 Output Over-Voltage Protection (OVP)

 Over-Current Protection (OCP)

 QFN-20 (3mmx4mm) Package on This

Board

APPLICATIONS

 PD Power Supply in PoE System

 USB Dedicated Charging Port (DCP)

 Industrial Control Systems

 Power Supply for Linear Chargers

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

MPS green status, please visit MPS website under Quality Assurance.

“MPS” and “The Future of Analog IC Technology” are Registered Trademarks

of Monolithic Power Systems, Inc.

Note: (1) The IC can work to 4V input, but the output voltage will drop, it is

limited by the maximum duty cycle.

EV9928-L-00C EVALUATION BOARD

(L x W x H) 8.36cm x 8.36cm x 0.8cm

(Four Layers)

Board Number

MPS IC Number

EV9928-L-00C

MP9928GL