DESCRIPTION

The UTC UC2000D  is a high performance, high precision and

low cost PWM Power switch for non-isolated buck application. It

combines a dedicated current mode PWM controller and error

amplifier for low component count. UTC  UC2000D use UTC

proprietary frequency shuffling technique for EMI performance. And

oscillator with frequency-reduction control is implemented.  

The UTC  UC2000D  has soft start control and protection

function, such as Cycle-by-Cycle current limiting, Over Loading

Protection, Output Short-Circuit Protection, RCS short Protection,

OTP, VDD OVP, and UVLO.

FEATURES

* Power on soft-start

* Load compensation

* Built-in error amplifier

* Oscillator of fixed frequency with frequency-reduction control

* Frequency shuffling for EMI improvement  

* Built-in Leading Edge Blanking (LEB)

* Cycle-by-Cycle current limiting

* Over loading protection

* Output short-circuit protection

* VDD Under Voltage Lockout with hysteresis (UVLO)

* VDD OVP