DESCRIPTION

The MP2176 is a monolithic, step-down, switchmode converter with internal power MOSFETs

that can achieve up to 6A of continuous output

current from a 1.5V to 6V input voltage with

excellent load and line regulation. The output

voltage can be regulated as low as 0.61V.

Constant-on-time (COT) control provides fast

transient response and eases loop stabilization.

Fault condition protections include cycle-bycycle current limiting and thermal shutdown.

The operating frequency is programmed by an

external resistor and is compensated for

variations in VIN.

Full protection features, including over-current

protection (OCP), short-circuit protection (SCP),

over-voltage protection (OVP), under-voltage

protection (UVP), and over-temperature

protection (OTP), are provided by internal

comparators.

The MP2176 requires a minimal number of

readily available, standard, external

components and is available in a QFN-14

(3mmx4mm) package.

FEATURES

 1.5V to 6V Wide Input Range

 3V to 6V VCC Operating Supply

 6A Output Current

 Programmable Switching Frequency from

300kHz to 1MHz

 Low RDS(ON) Internal Power MOSFETs

 Proprietary Switching Loss Reduction

Technique

 1% Reference Voltage Over -20°C to

+85°C Junction Temperature Range

 Pre-Bias Start-Up

 Minimum On Time (TON_MIN = 60ns)

Minimum Off Time (TOFF_MIN = 100ns)

 Non-Latch OCP, Non-Latch OVP, and

Thermal Shutdown

 Output Adjustable from 0.61V to 4.5V

 Programmable Soft-Start Time

 Available in a QFN-14 (3mmx4mm)

Package

APPLICATIONS

 Flat-Panel Television and Monitors

 Telecom System Base Stations

 Distributed Power Systems

 Personal Video Recorders

 Networking Systems

 Servers