MP5611 2.9-5.2V, 500mA AMOLED Display Power Supply QFN-16

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MP5611 2.9-5.2V, 500mA AMOLED Display Power Supply QFN-16

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MPS QFN-16 LED Drivers LED Power Management

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MP5611 2.9-5.2V, 500mA AMOLED Display Power Supply QFN-16

The MPS MP5611 is a AMOLED Display Power Supply. It operates from a 2.9 V to 5.2 V input and is rated for 500 mA. It is supplied in a QFN-16 package.

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.

Key Specifications

Part Number	MP5611
Function	AMOLED Display Power Supply
Input Voltage	2.9 V to 5.2 V
Current Rating	500 mA
Package	QFN-16
Ordering Codes	MP5611

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

Typical Application Circuit

Applications

AMOLED Smartphones

Design Notes

Channel-to-channel current matching sets backlight uniformity; check the matching spec at the current you will actually run.
In boost topologies the OVP threshold must clear the worst-case forward voltage of the longest string, including temperature and binning spread.
Keep PWM dimming above 200 Hz to stay clear of visible flicker, and away from the audio band if the product has a speaker.
Size the inductor and output capacitor for the string current ripple, not the total LED current.