Techcode TD1484A
The TD1484A is a monolithic pulse-width-modulated (PWM) ⚫ synchronous step-down switch mode regulator with two ⚫ internal power MOSFETs. It achieves 3.2A continuous output ⚫ current over a wide input supply range with excellent load ⚫ and line regulation. The TD1484A operates from a +4.75V to +20V unregulated input.GENERAL DESCRIPTION
FEATURES
Current mode operation provides fast● transient response and eases loop stabilization. Fault
● condition protection includes cycle-by-cycle current limit and
● thermal shutdown.
● This device, available in an ESOP-8L package, provides a very
● compact solution with minimal external components.
● 3.2A Output Current Wide 4.75V to 20V Operating Input Range Integrated 90mΩ Power MOSFET Switches Output Adjustable from 0.923V to 18V 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 Pin Configurations BS 1 IN 2 SW 3 GND 4 8 SS 7 EN 6 COMP 5 FB The package has an exposed PAD(GND) from the bottom view. The exposed PAD serves as radiator and must be soldered to PCB. Figure1 Pin Configuration of TD1484A (Top View) March, 1, 2022.