Techcode®
DATASHEET
3A 22V Synchronous Rectified Step-Down Converter TD2776B
General Description
Features
The TD277...
Techcode®
DATASHEET
3A 22V Synchronous Rectified Step-Down Converter TD2776B
General Description
Features
The TD2776B is a monolithic synchronous buck regulator. The device integrates two 90mΩ
MOSFETs, and provides 3A of continuous load current
over a wide input
voltage of 4.75V to 22V. 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.
3A Output Current Wide 4.75V to 22V Operating Input Range Integrated 90mΩ Power
MOSFET Switches Output Adjustable from 0.923V to 20V Up to 93% Efficiency Programmable Soft-Start Stable with Low ESR Ceramic Output
Capacitors Fixed 600KHz 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 TD2776
Techcode Semiconductor Limited 1
SOP8
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Techcode®
DATASHEET
3A 22V Synchronous Rectified Step-Down Converter TD2776B
Pin Configurations
Pin Description
Figure 2 Pin Configuration of TD2776B(Top View)
Pin Number Pin Name Description
1 BS
High-Side Gate Drive Boost Input. BS supplies the drive for ...