General Description

The MIC2288 is a 1.2MHz PWM, DC/DC boost switching regulator available in low-profile Thin SOT-23 and 2mm × 2mm MLF™ package options. High power density is achieved with the MIC2288’s internal 34V/1A switch, allow ing it to power large loads in a tiny footprint.

The MIC2288 implements a constant frequency, 1.2MHz PWM, current mode control scheme with internal compensation that offers excellent transient response and output regulation performance. The high frequency operation saves board space by allowing small, low-profile, external components. The fixed frequency PWM topology also reduces spurious switching noise and ripple to the input power source.

The MIC2288 is available in a low-profile Thin SOT-23-5 package and a 2mm × 2mm MLF™-8 leadless package. The 2mm × 2mm MLF™-8 package option has an output over voltage protection feature.

Features

• 2.5V to 10V input voltage range

• Output voltage adjustable to 34V

• Over 1A switch current

• 1.2MHz PWM operation

• Stable with ceramic capacitors

• High-efficiency

• <1% line and load regulation

• Low input and output ripple

• <1µA shutdown current

• UVLO

• Output overvoltage protection (MIC2288BML)

• Over temperature shutdown

• Thin SOT-23-5 package option

• 2mm × 2mm leadless MLF™-8 package option

• –40°C to +125°C junction temperature range

Applications

• Organic EL power supply

• TFT-LCD bias supply

• 12V supply for DSL applications

• Multi-output DC/DC converters

• Positive and negative output regulators

• SEPIC converters