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MAX17116 - Dual-Output DC/DC Power Supply

General Description

The MAX17116 includes two current-mode 1.4MHz switch mode power-supply (SMPS) regulators for activematrix organic light-emitting diode (AMOLED) displays.

The positive supply is provided by a step-up regulator with a synchronous rectifier.

Key Features

  • S 2.3V to 4.2V Input Operating Voltage Range S High-Performance PWM Step-Up Regulator Fixed 4.6V, 250mA Output High Accuracy (±1%) 1.4MHz Switching Frequency Built-In 6V/0.25I n-Channel MOSFET with Lossless Current Sensing Built-In 6V/0.5I p-Channel MOSFET Synchronous Rectifier Cycle-by-Cycle Current Limit More than 85% Efficiency at 150mA Good Low-Duty Factor Operation S High-Performance PWM Inverting Regulator Programmable 250mA Output High Accuracy (±1%) Adjustabl.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MAX17116 19-5653; Rev 0; 12/10 EVAALVUAAILTAIOBNLEKIT Dual-Output DC/DC Power Supply for AMOLED General Description The MAX17116 includes two current-mode 1.4MHz switch mode power-supply (SMPS) regulators for activematrix organic light-emitting diode (AMOLED) displays. The positive supply is provided by a step-up regulator with a synchronous rectifier. The negative supply is provided by an inverting regulator with a synchronous rectifier. The step-up DC-DC converter is a high-accuracy 250mA regulator with an integrated power MOSFET switch and synchronous rectifier. The synchronous rectifier improves efficiency and also provides True ShutdownTM. Its 4.6V (fixed) output efficiency exceeds 85% at 150mA from a 3.7V input.