The TD1534 is a 380 KHz fixed frequency monolithic step down switch mode regulator with a built in internal Power MOSFET. It achieves 2A continuous output current over a wide input supply range with excellent load and line regulation.The device includes a voltage reference, oscillation circuit, error amplifier, internal PMOS and etc.The PWM control circuit is able to adjust the duty ratio linearly from 0 to 100%. An enable function, an over current protection function and a short circuit protection function are built inside. An internal compensation block is built in to minimize external component count.The TD1534 serves as ideal power supply units for portable devices.

Features
* 2A Constant Output Current
* 140mΩ RDSON Internal Power PMOSFET Switch
* Up to 95% Efficiency
* Fixed 380KHz Frequency
* Wide 3.6V to 20V Input Voltage Range
* Output Adjustable from 0.8V to 18V
* Built in Frequency Compensation
* Built in Thermal Shutdown Function
* Built in Current Limit Function
* SOP-8 Package is Available
* The minimum dropout up to 0.3V

Applications
* Portable DVD
* LCD Monitor / TV
* Battery Charger
* ADSL Modem
* Telecom / Networking Equipment