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-bycycle current limit protection, thermal shutdown protection, short output protection, and overcurrent 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 (VIN) Range

• Triple Output AVDD, ELVDD, ELVSS

• High Accuracy for Output Voltage (VOUT)

• Good Line and Load Regulation

• Configurable VELVDD = 4.6V to 5.2V, Default 4.6V

• Configurable VELVSS = -1.4V to -6.4V, Default -4V

• 500mA Output Current (IOUT) for ELVDD and ELVSS

• Configurable VAVDD = 5V to 7.7V, Default 5.8V

• 100mA IOUT 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