MP2362

Dual 2A, 23V, 380KHz Step-Down Converter

with Frequency Synchronization

MP2362 Rev. 0.93

www.MonolithicPower.com

1

1/25/2010

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2010 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP2362 is a dual monolithic step-down

switch mode converter with built-in internal

power MOSFETs. It achieves 2A continuous

output current for each output over a wide input

supply range with excellent load and line

regulation. Each channel can be independently

synchronized to a frequency up to 1.2MHz.

Current mode operation provides fast transient

response and eases loop stabilization.

Fault condition protection includes cycle-by-cycle

current limiting and thermal shutdown. In

shutdown mode the regulator draws 40µA of

supply current.

The MP2362 requires a minimum number of

readily available standard external components.

EVALUATION BOARD REFERENCE

Board Number

Dimensions

EV2362DF-00A

2.2”X x 1.6”Y x 0.4”Z

FEATURES

• 2A Current for Each Output

• 0.18Ω Internal Power MOSFET Switch

• Stable with Low ESR Output Ceramic

Capacitors

• Up to 90% Efficiency

• 40µA Shutdown Mode

• Fixed 380KHz Frequency

• Thermal Shutdown

• Cycle-by-Cycle Over Current Protection

• Wide 4.75V to 23V Operating Input Range

• Each Output Adjustable from 1.22V to 16V

• Configurable for Single Output with Double

the Current

• Programmable Under Voltage Lockout

• Frequency Synchronization Input

• Available in TSSOP20 with Exposed Pad

Package

APPLICATIONS

• Distributed Power Systems

• I/O and Core supplies

• Set top boxes

• Cable Modems

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

Monolithic Power Systems, Inc.

TYPICAL APPLICATION

MP2362

SYNCB

BSB

NC2

INB

SWB

PGB

SGB

FBA

COMPA

ENA

10

9

8

7

6

5

4

3

2

1

SYNCA

NC1

BSA

INA

SWA

PGA

SGA

FBB

COMPB

ENB

20

19

18

17

16

15

14

13

12

11

10nF

10nF

10nF

10nF

5V @ 2A

OFF ON

OFF ON

B230A

B230A

12V

3.3V @ 2A

SYNC CLOCK

95

90

85

80

75

70

OUTPUT CURRENT (A)

Efficiency vs

Output Current Voltage

0

0.5

1.5

12