AMS1067
General Description
The
AMS1067
is a 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.
Features
2A Output Current
0.22Ω Internal Power MOSFET Switch
Stable with Low ESR Output Ceramic
capacitors
Up to 95% Efficiency
20µA Shutdown Mode
Fixed
420KHz
frequency
Thermal Shutdown
Cycle-by-cycle over current protection
Wide 4.75 to
18V
operating input range
Output Adjustable from 1.22 to 15V
Programmable under voltage lockout
Available in
SOP8 / ESOP8
Current mode operation provides fast transient
response and eases loop stabilization.
Fault condition protection includes cycle-by-
cycle current limiting and thermal shutdown. In
shutdown mode the regulator draws 25µA of
supply current.
The
AMS1067
requires a minimum number of
readily available standard external components.
Applications
PC Monitors
Distributed Power Systems
Battery Charger
Pre-Regulator for Linear Regulators
Ordering Information
Part Number * Package
AMS1067
SOP8
/ ESOP8
Temperature
-20 to +85 °C
Typical Application Circuit
INPUT
4.75 to 15V
ENABLE
SHUTDOWN
AMS1067
OUTPUT
2.5V/2A
1
Advanced Monolithic Systems
http://www.ams-semitech.com
AMS [ Advanced Monolithic Systems Ltd ]
