MIC5060

Ultra Small High-Side MOSFET Driver

MLF is a registered trademark of Amkor Technology, Inc.

February 2010

M9999-021610-C

General Description

The MIC5060 MOSFET driver is designed for gate control

of N-Channel, enhancement-mode, and power MOSFETs

used as high-side or low-side switches. The MIC5060 can

sustain an on-state output indefinitely.

The MIC5060 operates from a 2.75V to 30V supply. In

high-side configurations, the driver can control MOSFETs

that switch loads of up to 30V. In low-side configurations,

with separate supplies, the maximum switched voltage is

limited only by the MOSFET.

The MIC5060 has a non-inverting, TTL-compatible control

input.

The MIC5060 features an internal charge pump that can

sustain a gate voltage greater than the available supply

voltage. The driver is capable of turning on a logic-level

MOSFET from a 2.75V supply or a standard MOSFET

from a 5V supply. The gate-to-source output voltage is

internally limited to approximately 15V.

The MIC5060 is protected against automotive load dump,

reversed battery, and inductive load spikes of –20V.

The driver’s overvoltage shutdown feature turns off the

external MOSFET at approximately 35V to protect the load

against power supply excursions.

The MIC5060 is available in 3mm x 3mm MLF

Datasheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

Features

• 2.75V to 30V operation

• 100µA maximum supply current (5V supply)

• 15µA typical off-state current

• Internal charge pump

• TTL-compatible input

• Withstands 60V transient (load dump)

• Reverse battery protected to –20V

• Inductive spike protected to –20V

• Overvoltage shutdown at 35V

• Internal 15V gate protection

• Minimum external parts

• Operates in high-side or low-side configurations

• 1µA control input pull-off

Applications

• Notebook Battery safety switches

• UMPC and Web Tablet Battery protection

• Battery-powered computer power management

• General MOSFET switch applications

• Power bus switching

_________________________________________________________________________________________________________________________

Typical Application

3V “Sleep-Mode” Switch with a Logic-Level MOSFET