3A STEP-DOWN VOLTAGE SWITCHING REGULATOR

DESCRIPTION

As a step-down (buck) switching regulator, the UTC

P2576/HV provides drives 3A load. The UTC P2576/HV are

simple because it only needs to use a minimum number of

external components.

Frequency compensation and a fixes-frequency oscillator are

in it. UTC P2576/HV can perform with standard inductors, and

simplifying the switch mode power supplies’ design. UTC

P2576/HV guarantees output load conditions and ±10% on the

oscillator frequency. Its external shutdown is included with 50μA

standby current. As well as thermal shutdown for full protection

under fault conditions, the output switch has cycle by cycle

current limiting.

FEATURES

* Output Current 3A

* Input Voltage Range of 7V to 40V for P2576 and 7V to 60V for P2576HV

* Requires 4 External Components

* Very High Efficiency

* TTL Shutdown

* Low Power Standby Mode

* Thermal Shutdown,

* Current Limit Protection

* Internal Oscillator: 52 kHz Fixed Frequency