MP5611

2.9V to 5.2V Input, Triple-Output,

AMOLED Display Power Supply

MP5611 Rev. 1.0

MonolithicPower.com

1

12/16/2021

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© 2021 MPS. All Rights Reserved.

DESCRIPTION

The MP5611 is a triple-output converter across

a 2.9 to 5.2V input voltage (VIN) range designed

for small-size AMOLED (active matrix organic

light-emitting diode) display power supplies.

The MP5611 integrates a boost converter for

ELVDD, an inverting buck-boost (IBB) converter

for ELVSS, and another boost converter for

AVDD. The one wire digital control pin (CTRL)

can program the ELVSS, ELVDD, and AVDD

voltages following digital protocol.

The MP5611 supports an independent start-up

sequence for AVDD and ELVDD via the

separated enable pins (EN_AVDD and CTRL). It

also integrates an optional fast discharge

function after the IC has been disabled.

The device features rich protections, including

VIN under-voltage lockout (UVLO), cycle-by-

cycle current limit protection, thermal shutdown

protection, short output protection, and over-

current protection (OCP) for AVDD and ELVDD.

The fully integrated synchronous rectification

solution with low on resistance improves total

system

efficiency,

minimizes

external

components, and reduces PCB layout size.

The

MP5611

is

available

in

a

TQFN-16

(3mmx3mm) package.

FEATURES

• 2.9 to 5.2V Input Voltage (V

IN) Range

• Triple Output AVDD, ELVDD, ELVSS

• High Accuracy for Output Voltage (V

OUT)

• Good Line and Load Regulation

• Configurable V

ELVDD = 4.6V to 5.2V, Default

4.6V

• Configurable V

ELVSS = -1.4V to -6.4V,

Default -4V

• 500mA Output Current (I

OUT) for ELVDD and

ELVSS

• Configurable V

AVDD = 5V to 7.7V, Default

5.8V

• 100mA I

OUT for AVDD

• Respective Enable for AVDD and ELVDD

• Soft Start (SS)

• Active Fast Discharge Function

• Cycle-by-Cycle Current Limit Protection

• AVDD Output Over-Current Protection

(OCP) 90mA to 270mA

• ELVDD Output OCP 80mA to 650mA

• Output Short-to-GND Protection

• Over-Temperature Protection (OTP)

• Available in a TQFN-16 (3mmx3mm)

Package

APPLICATIONS

• AMOLED Smartphones

• AMOLED Displays

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

Assurance.

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

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

TYPICAL APPLICATION

C1

PVIN

AVIN

AGND

PGND2

EN_AVDD

CTRL

FD

CT

SW1

SW3

AVDD

PGND1

FB

ELVDD

ELVSS

SW2

C5

C4

C2

C3

FD

CTRL

EN

VIN

L2 4.7µH

L3 10µH

L1 4.7µH

AVDD

ELVDD

ELVSS

5.8V

100mA

4.6V

500mA

-4V

500mA

MP5611