TD1410 – 2A 380KHZ 20V PWM Buck DC/DC Converter

Part Number : TD1410

Function : 2A 380KHZ 20V PWM Buck DC/DC Converter

Manufactures : Techcode

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Description :

Datasheet 2A 380KHZ 20V PWM Buck DC/DC Converter TD1410 General Description The TD1410 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 TD1410 serves as ideal power supply units for portable devices. Features 5 2A Constant Output Current 5 140mΩ RDSON Internal Power PMOSFET Switch 5 Up to 95% Efficiency 5 Fixed 380KHz Frequency 5 Wide 3.6V to 20V Input Voltage Range 5 Output Adjustable from 1.222V to 18V 5 Built in Frequency Compensation 5 Built in Thermal Shutdown Function 5 Built in Current Limit Function 5 SOIC-8 Package is Available 5 The minimum dropout up to 0.3V Applications 5 5 5 5 5 Portable DVD LCD Monitor / TV Battery Charger ADSL Modem Telecom / Networking Equipment Figure 1 Package Type of TD1410 September, 2006 1 Techcode Semiconductor Limited Free Datasheet http:// Datasheet 2A 380KHZ 20V PWM Buck DC/DC Converter TD1410 Pin Configurations Figure 2 Pin Configuration of TD1410 (Top View) Pin Description Pin Number 1,6, 8 2 3 4 Pin Name NC Vin SW GND Description Not Connect. Supply Voltage Input Pin. TD1410 operates from a 3.6V to 20V DC voltage. Bypass Vin to GND with a suitably large capacitor to eliminate noise on the input. Power Switch Output Pin. SW is the switch node that supplies power to the output. Ground Pin. Care must be taken in layout. This pin should be placed outside of the Schottky Diode to output capacitor ground path to prevent switching current spikes from inducing voltage noise into TD1410. Feedback Pin. Through an external resistor divider network, FB senses the output voltage and regulates it. The feedback threshold voltage is 1.222V. Enable Pin. EN is a digital input that turns the regulator on or off .Drive EN pin high to turn on the regulator, drive it low to turn it off. 5 7 FB EN Ordering Information TD1410 X X Circuit Type Packing Blank: Tube R: Type and Reel Package P: SOP8 September, 2006 2 Techcode Semiconductor Limited Free Datasheet http:// Datasheet 2A 380KHZ 20V PWM Buck DC/DC Converter TD1410 Function Block Figure 3 Function Block Diagram of TD1410 Absolute Maximum Ratings Parameter Input Voltage Feedback Pin Voltage Enable Pin Voltage Switch Pin Voltage Power Dissipation Operating Junction Temperature Storage Temperature Lead Temperature (Soldering, 10 sec) ESD (HBM) Symbol VIN VFB VEN VSW PD TJ TSTG TLEAD Value -0.3 to 20 -0.3 to Vin -0.3 to 12 -0.3 to Vin Internally limited 150 -65 to 1 […]

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TD1410 Datasheet

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