SDAS3H
SDAS3H
SDAS3H
SDAS3H
TYPICAL APPLICATION
APPLICATIONS
GENERAL DESCRIPTION
3A,4.5V-16V Input,500kHz
Synchronous Step-Down Converter
MT2492 Rev1.0
1
⚫ High Efficiency: Up to 96%
⚫ 500KHz Frequency Operation
⚫ 3A Output Current
⚫ No Schottky Diode Required
⚫ 4.5V to 16V Input Voltage Range
⚫ 0.8V Reference
⚫ Slope Compensated Current Mode Control for
Excellent Line and Load Transient Response
⚫ Integrated internal compensation
⚫ Stable with Low ESR Ceramic Output
Capacitors
⚫ Over Current Protection with Hiccup-Mode
⚫ Thermal Shutdown
⚫ Inrush Current Limit and Soft Start
⚫ Available in SOT23-6 Package
⚫ -40°C to +85°C Temperature Range
⚫ Distributed Power Systems
⚫ Digital Set Top Boxes
⚫ Flat Panel Television and Monitors
⚫ Wireless and DSL Modems
⚫ Notebook Computer
The is a fully integrated, high efficiency
3A synchronous rectified step-down converter.
The operates at high efficiency over a
wide output current load range.
This device offers two operation modes, PWM
control and PFM Mode switching control, which
allows a high efficiency over the wider range of the
load.
The requires a minimum number of
readily available standard external components
and is available in an 6-pin SOT23 ROHS
compliant package.
Figure 1. Basic Application Circuit
SDAS3H
L
10μH
C
OUT
22μF*3
C1
22pF
opt.
R1
100k
1%
R2
19k
1%
C
IN
22μF
VIN SW
EN FB
GND
V
IN
V
OUT
C2
1uF
BS
FEATURES
Shouding
Ver1.0
www.sdw-tw.com