MP5414

PMU for 3D Glasses

MP5414 Rev.1.12

www.MonolithicPower.com

1

12/13/2012

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© 2012 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP5414 is a highly-efficient fully-integrated

PMU with a current-mode step-up converter,

four single-pole/double-throw switches, low

drop-out, and a battery charger designed for

battery-powered supply applications.

The step-up converter 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 MP5414 to

produce a high output voltage with high

efficiency from a dual-cell NiCd/NiMH or single-

cell Li-ion battery. In addition, the step-up

converter can disconnect all loads from the

input DC power supply.

The charger features constant-current and

constant-voltage

charging

modes

with

a

programmable

charge

current

(50mA

to

300mA), trickle-charge capability, and a charge-

status indicator. Charging is enabled with an

input voltage greater than 3.5V, and is disabled

when unplugged from the AC adaptor. The

charger does not need an external reverse-

blocking diode.

The low-dropout linear regulator operates with

low noise from a 2.7V-to-6.5V input voltage,

and regulates the output voltage with 2%

accuracy from 1.25V to 5V.

The MP5414 is available in a 4mm x 5mm 28-

pin QFN package.

FEATURES

BOOST

• 1.8V Low Voltage Start-Up

• 1.8V to 5.5V Input Range

• Output Disconnect

• Integrated Power MOSFET and Schottky

Diode

• Variable Frequency Control

• <1μA Shutdown Current

• Current Mode Control with Internal

Compensation

• Inrush Current Limiting and Internal Soft-

Start

• Input Under-Voltage Lockout

CHARGER

• Low Reverse-Battery Current (< 1µA)

• Programmable Charge Current

• Charge Status Indication

• No External Sense Resistor

• No External Reverse Blocking Diode

LINEAR REGULATOR

• Low 100mV Dropout at 100mA Output

• Programmable Output Voltage with 2%

Accuracy

• Up to 6.5V Input Voltage

• High PSRR: 70dB at 1kHz

• Better Than 0.001%/mA Load Regulation

• Stable With Low-ESR Output Capacitor

APPLICATIONS

• 2-Cell and 3-Cell NiCd/NiMH or Single-cell

Li-Ion Battery Consumer Products

• 3D Glass Driver

• Small LCD Displays Bias Supply

• Digital Still and Video Cameras

• Smartphones, Netbooks, and Handheld

Video Game Consoles

All MPS parts are lead-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.