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TD1519

Techcode
Part Number TD1519
Manufacturer Techcode
Description 2A 32V Synchronous Rectified Step-Down Converter
Published May 23, 2016
Detailed Description Techcode® 2A 32V Synchronous Rectified Step-Down Converter DATASHEET TD1519 General Description Features The TD1519 ...
Datasheet PDF File TD1519 PDF File

TD1519
TD1519

Overview
Techcode® 2A 32V Synchronous Rectified Step-Down Converter DATASHEET TD1519 General Description Features The TD1519 is a monolithic synchronous buck • regulator.
The device integrates two 90mΩ • MOSFETs, and provides 2A of continuous load current • over a wide input voltage of 4.
75V to 32V.
Current • mode control provides fast transient response • and cycle-by-cycle current limit.
• An adjustable soft-start prevents inrush current at • turn-on, and in shutdown mode the supply current drops to 1µA.
• This device, availablein an SOP8-PP package, • provides a very compact solution with minimal external • components.
2A Output Current Wide 4.
75V to 32V Operating Input Range Integrated 90mΩ Power MOSFET Switches Output Adjustable from 0.
923V to 30V Up to 93% Efficiency Programmable Soft-Start Stable with Low ESR Ceramic Output Capacitors Fixed 340KHz Frequency Cycle-by-Cycle Over Current Protection Input Under Voltage Lockout Applications • Distributed Power Systems • Networking Systems • FPGA, DSP, ASIC Power Supplies • Green Electronics/ Appliances • Notebook Computers Package Types October, 20, 2010.
Figure 1.
Package Types of TD1519 Techcode Semiconductor Limited 1 SOP8 www.
techcodesemi.
com Techcode® 2A 32V Synchronous Rectified Step-Down Converter Pin Configurations DATASHEET TD1519 Pin Description Figure 2 Pin Configuration of TD1519(Top View) Pin Number Pin Name Description 1 BS High-Side Gate Drive Boost Input.
BS supplies the drive for the high-side N-Channel MOSFET switch.
Connect a 0.
01µF or greater capacitor from SW to BS to power the high side switch.
2 IN Power Input.
IN supplies the power to the IC, as well as the step-down converter switches.
Drive IN with a 4.
75V to 32V power source.
Bypass IN to GND with a suitably large capacitor to eliminate noise on the input to the IC.
See Input Capacitor.
3 SW Power Switching Output.
SW is the switching node that supplies power to the output.
Connect the output LC filter from SW to...


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