CM1117F
1A L
OW
D
ROPOUT
V
OLTAGE
R
EGULATOR
GENERAL DESCRIPTION
The CM1117F series of adjustable and fixed voltage
regulators are designed to provide 1A for applications
requiring high efficiency. All internal circuitry is designed to
operated down to 1V input to output differential and the
dropout voltage is fully specified as a function of load current.
The CM1117F offers current limiting and thermal protection.
The on chip trimming adjusts the reference voltage accuracy
to2%.
FEATURES
Three Terminal Adjustable or Fixed Voltages: 1.8V, 2.5V,
3.3V, and adjustable.
Output Current of 1A
Low dropout voltage: 1.1V Typ.
Line Regulation: 0.3% Max
Load Regulation: 2% Max
Fast Transient Response
Thermal Protection
SOT-223 package available
Rugged 3KV ESD withstand capability.
APPLICATIONS
High Efficiency Linear Regulators
Post Regulators for Switching Supplies
Battery Chargers
Active SCSI Terminators
Post Regulator for Switching DC/DC Converter
Battery Powered Instrumentation
PIN CONFIGURATION
SOT-223
Top View
GND/ADJ
VOUT
2
1
ORDERING INFORMATION
Package Type
SOT-223
CM1117FDCM223
CM1117FKCM223
CM1117FSCM223
CM1117FCM223
CM1117FGDCM223*
CM1117FGKCM223*
CM1117FGSCM223*
CM1117FGCM223*
*Note:
G : Suffix for Pb Free Product
Operating Temperature
Range (T
A
)
0℃ ~ +85℃
0℃ ~ +85℃
0℃ ~ +85℃
0℃ ~ +85℃
0℃ ~ +85℃
0℃ ~ +85℃
0℃ ~ +85℃
0℃ ~ +85℃
Output Voltage
1.8V
2.5V
3.3V
ADJ.
1.8V
2.5V
3.3V
ADJ.
2007/11/06 Rev1.3
Champion Microelectronic Corporation
VIN
3
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