MIC5166

Ramp Control is a trademark of Micrel, Inc

MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.

June 2012

M9999-060612-A

General Description

data rate (DDR), memory terminator power supply. The

part is small and requires small output capacitors making it

a tiny overall solution. This allows it to be conveniently

placed close to the DDR memory, minimizing circuit board

layout inductance which may cause excessive voltage

ripple at the DDR memory.

The MIC5166 contains a precision voltage divider network

The MIC5166 is capable of sinking and sourcing up to 3A.

It is stable with only two 10µF ceramic output capacitors.

The part is available in a small 3mm × 3mm MLF

®

thermally-enhanced package.

The MIC5166 has a high-side NMOS output stage offering

very-low output impedance, and very-high bandwidth. The

NMOS output stage offers a unique ability to respond very

quickly to sudden load changes such as is required for

DDR memory termination power supply applications.

Data sheets and support documentation can be found on

Features

• Operating voltage range:

• Bias Supply: 2.5V to 5.5V

• High bandwidth – very fast transient response

• Stable with two 10µF ceramic output capacitors

• Two 10µF output capacitors used in most applications

• High output voltage accuracy:

• 0.015% line regulation

• 1.5% load regulation

• Logic level enable input

• Power Good (PG)

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

Applications

• Desktop computers

• Notebook computers

• Datacom systems

• Servers

• Video cards

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Typical Application