General Description

TS19377 consists of step-down switching regulator with PWM control. These devise include a reference voltage source, oscillation circuit, error amplifier, internal PMOS and etc.

TS19377 provides low-ripple power, high efficiency, and excellent transient characteristics. The PWM control circuit is able to the duty ratio linearly from 0 up to 100. An enable function, an over current protect function and short circuit protect function are built inside, and when OCP or SCP happens, the operation frequency will be reduced. Also, an internal compensation block is built in to minimum external component count.

Features

● Input Voltage Range 3.6V~23V

● Output voltage: 0.25V~Vcc

● 2A Switch Output Current

● Duty ratio: 0~100 PWM control

● 330kHz Switching Frequency

● Enable/Disable Functions

● Current limit and Thermal Shutdown

● Short Circuit Protections

● Built-in Internal SW P-CH MOS

Application

● White LED Backlighting

● White LED Driving

● Multiple LED Driving

● LED Lighting Equipment