MP5410

Low Start-up Voltage Boost Converter

with Four SPDT Switches

MP5410 Rev.1.01

www.MonolithicPower.com

1

3/28/2011

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

© 2011 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP5410 is a high efficiency, current mode

step-up converter with four single-pole/double-

throw (SPDT) switches designed for low-power

bias supply application. The device can boost

dual-cell NiCd/NiMH or single-cell Li+ battery to

10V output voltage.

The MP5410 can start up from an input voltage

as low as 1.8V. It uses a current limited variable

frequency

control

algorithm

to

optimize

efficiency and minimize external component

size and cost. The internal low resistance N-

Channel MOSFET switch can withstand up to

10V allowing the MP5410 to produce high

output voltage with high efficiency.

In addition, the MP5410 can disconnect all

loads from input DC power supply. The

integrated schottky diode reduces external

parts to save critical board space.

The MP5410 features low shutdown current

allowing the part to draw less than 1µA off

current in shutdown mode. And it includes input

under voltage and over temperature protection.

The MP5410 is available in a small 16-pin QFN

3x3mm package.

FEATURES

• 1.8V Low Voltage Start-Up

• 1.8V to 5.5V Input Range

• Output Disconnection

• Integrated Power MOS & Schottky Diode

• Variable Frequency Control

• <1µA Shutdown Current

• Current Mode Control with Internal

Compensation

• More than 80% Efficiency at Light Load

Conditions

• Tiny External Components

• Inrush Current Limiting and Internal Soft-

Start

• Input UVLO

• Over Temperature Protection

• 3x3mm QFN16 Package

APPLICATIONS

• Dual-cell and Three-cell NiCd/NiMH or

Single-cell Li Battery Consumer Products

• 3D Glass Driver

• Small LCD Displays Bias Supply

• Digital Still and Video Cameras

• Handheld Computers and PDAs

• Cell Phones

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.

TYPICAL APPLICATION

MP5410

SW

FB

L1

R1

R2

IN

S0

EN

GND

L+

Battery

S1

S2

S3

AB

C

D

L-

R+

R-

Control

Signal

ISET

L

OUT

Efficiency

50

55

60

65

70

75

80

85

90

95

100

1.6

2.6

3.6

4.6

5.6