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.

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 3Ω drivers

• Simple control: voltage-mode PWM

• Fast transient response

- Transient Hysteretic control

- Externally compensated

• Over-current protection

• Hiccup mode short-circuit protection

• Dual function COMP & EN pin

- ISD = 50µA

• Short minimum ON time

- 30ns

- Very low duty cycle possible

Applications

• Point-of-Load DC/DC conversion

• High Current Power Supplies

• Telecom/datacom and Networking Power Supplies

• Servers and Workstations

• Graphics Cards and other PC Peripherals