CM1117A
600mA L
OW
D
ROPOUT
V
OLTAGE
R
EGULATOR
GENERAL DESCRIPTION
The CM1117A is a series of low dropout three-terminal
regulators with a dropout of 1.1V at 600mA output current.
These products have been optimized for low voltage where
transient response and minimum input voltage are critical.
These CM1117A provide current limit and thermal shutdown.
Its circuit includes a trimmed band-gap reference to assure
output voltage accuracy to be within
FEATURES
Low Dropout Voltage: 1.1V at 600mA output Current.
Output Noise from 10Hz to 10KHz: 0.003%
PSRR at Io = 300mA and f =120Hz: 75dB
Output Voltage Accuracy:
±
1%
On-Chip Thermal Shutdown
Maximum Quiescent Current: I
QMAX
=5mA
ESD (Human Body Model): 3.5KV
Operation Junction Temperature –40 to 125℃
±
1%. On –chip thermal
shutdown provides protection against any combination of
overload and ambient temperatures that would create
excessive junction temperatures.
The CM1117A is available in 2.5V and 3.3V versions. The
fixed versions integrate the adjust resistors. It is also available
in an adjustable version which can set the output voltage with
two external resistors.
APPLICATIONS
DVD/CD-ROM
USB Device
Add-on Card
DVD Player
PC Motherboard
PIN CONFIGURATION
SOT-89
Front View
GND/ADJ
OUTPUT
2
1
Figure 1. Package Types of CM1117A
2006/10/11 Rev1.4
INPUT
3
Champion Microelectronic Corporation
Page 1
CHAMP [ CHAMPION MICROELECTRONIC CORP. ]
