US2351

DESCRIPTION

The UTC US2351 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 US2351 use UTC

proprietary frequency shuffling technique for EMI performance. And

oscillator with frequency-reduction control is implemented.

The UTC US2351 has soft start control and protection function,

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

Output Short-Circuit Protection, R CS short Protection, OTP, V DD

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

* V DD Under Voltage Lockout with hysteresis (UVLO)

* V DD OVP

规格书US2351