MIC2159 SYNCHRONOUS-itty™ Step-Down Converter IC

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	MIC2159: SYNCHRONOUS-itty™ Step-Down Converter IC

Ordering Information

Part Number	Package	Lead Finish
MIC2159YMME	10-lead ePAD MSOP	Pb-Free

General Description

The MIC2159 is a high efficiency, simple to use synchronous buck controller ICs housed in a 10-pin MSOP ePAD package. The MIC2159 switches at 400kHz, allowing the smallest possible external components and is designed to drive loads up to 30A. The devices feature high output driver capability, combined with an all n-channel synchronous architecture.

The MIC2159 operates from a 3V to 14.5V input and can be configured to generate output voltages as low as 0.8V. Efficiencies of over 95% can be achieved within the smallest possible printed circuit board space area.

The MIC2159 is available in a thermally capable 10-pin ePAD MSOP package, with an junction operating range from –40 ° C to +125 ° C.

Download Datasheet

Functional Diagram

Features

Small footprint 10-lead ePAD MSOP
3V to 14.5V input voltage range
Adjustable output voltage down to 0.8V
400KHz operation
Drives two n-channel MOSFETs
- Built-in 3 Ω drivers
Simple control: voltage-mode PWM
Fast transient response
- Externally compensated
Over-current protection
Hiccup mode short-circuit protection
Dual function COMP & EN pin
- I SD = 50µA
Short minimum ON time
- 30ns
- Very low duty cycle possible

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