MPM3530

55V, 3A, Step-Down Power Module

MPM3530 Rev. 1.0

www.MonolithicPower.com

1

9/21/2018

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

© 2018 MPS. All Rights Reserved.

DESCRIPTION

The

MPM3530

is

an

easy-to-use,

fully

integrated, 55V input, 3A, step-down, DC/DC

power module. The MPM3530 integrates a

monolithic DC/DC converter, power inductor,

input capacitors, and the necessary resistors

and capacitors in a compact QFN package. The

total power solution only requires a minimal

number of external components.

The MPM3530 adopts a peak-current-mode

control

architecture

with

a

fast

transient

response. This module provides over-current

protection (OCP) with valley-current detection,

which is used to prevent current runaway. The

MPM3530 also has accurate and reliable over-

voltage protection (OVP) and auto-recovery

thermal protection. An optional external soft

start is available, and enable and power good

indicator functions are provided. To increase

efficiency, the MPM3530 scales down the

switching frequency automatically when the

load is light.

FEATURES

 Wide 4.5V to 55V Operating Input Range

 Efficiency up to 92.3%

 Adjustable, Wide Output Voltage: 1V to 15V

 Programmable Switching Frequency with

External SYNC Function

 External Soft Start (SS)

 Over-Current Protection (OCP)

 High Efficiency for Light-Load Operation

 Over-Voltage Protection (OVP) and Thermal

Shutdown Protection

 Power Good (PG) Indication

 Meet EN55022 Class B Emission

 Operating Temperature Range: -40°C to

85°C

 Available in a QFN-47 (10mmx12mmx4mm)

Package

APPLICATIONS

 Industrial Power Systems

 Diagnostic Machines/Test Equipment

 Distributed Power Systems

 Telecom and Networking Systems

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

Assura

nce. “MPS”, the MPS logo, and “Simple, Easy Solutions” are

trademarks of Monolithic Power Systems, Inc. or its subsidiaries.

TYPICAL APPLICATION

VIN

FB

OUT

EN

COMP

4.5-55V

C1

R1

C2

MPM3530

PG

VDD

R2

R3

C3

3.3V@3A

2.2nF

2.53kΩ

10kΩ

4.32kΩ

2x22µF

4.7µF

R5

100kΩ

R4

1MΩ

R6

102kΩ

0

0.5

1

1.5

2

2.5

20

30

40

50

60

70

80

90

100

0

1

2

3

LOAD CURRENT (A)

VIN=12V_efficiency

VIN=24V_efficiency

VIN=36V_efficiency

VIN=12V_Ploss

VIN=24V_Ploss

VIN=36V_Ploss