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
1
2
Figure 1. Package Types of CM1117A
2005/07/12 Preliminary
INPUT
3
Champion Microelectronic Corporation
Page 1
CM1117A
600mA L
OW
D
ROPOUT
V
OLTAGE
R
EGULATOR
ORDERING INFORMATION
Package Type
SOT-89
CM1117AKCM89
CM1117ASCM89
CM1117ACM89
CM1117AGKCM89
CM1117AGSCM89
CM1117AGCM89
*Note:
G : Suffix for Pb Free Product
Operating Temperature
Range (T
A
)
0℃ ~ +70℃
0℃ ~ +70℃
0℃ ~ +70℃
0℃ ~ +70℃
0℃ ~ +70℃
0℃ ~ +70℃
Output Voltage
2.5V
3.3V
ADJ.
2.5V
3.3V
ADJ.
BLOCK DIAGRAM
Figure 2. Functional Block Diagram of CM1117A
2005/07/12 Preliminary
Champion Microelectronic Corporation
Page 2
CM1117A
600mA L
OW
D
ROPOUT
V
OLTAGE
R
EGULATOR
ABSOLUTE MAXIMUM RATINGS (Note 1)
Symbol
Value
Unit
Input Voltage
V
IN
15
V
Operating Junction Temperature Range
T
J
150
℃
Storage Temperature Range
T
STG
-65 to 150
℃
Lead Temperature (Soldering, 10sec)
T
LEAD
300
℃
ESD (Human Body Model)
ESD
3500
V
ESD (Machine Model)
ESD
400
V
Note 1: Stresses greater than those listed under ”Absolute Maximum Ratings” may cause permanent damage to the
device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond
those indicated under “ Recommended Operating Conditions” is not implied. Exposure to “Absolute Maximum
Ratings” for extended periods may affect device reliability.
Parameter
RESOMMENDED OPERATING CONDITIONS
Parameter
Input Voltage
Operating Junction Temperature Range
Storage Temperature Range
Symbol
V
IN
Min.
-40
-65
Max
12
125
150
Units
V
T
J
T
STG
℃
℃
2005/07/12 Preliminary
Champion Microelectronic Corporation
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CM1117A
600mA L
OW
D
ROPOUT
V
OLTAGE
R
EGULATOR
ELECTRICAL CHARACTERISTICS
Operating Conditions: V
IN
≤
10V,
T
J
=25
℃
,unless otherwise specified. (P
≤
maximum power dissipation) Limit
CM1117A
Min.
1.238
1.225
2.475
2.450
3.267
3.235
Typ.
1.250
1.250
2.5
2.5
3.3
3.3
0.035
1.0
1.0
0.20
1.0
1.0
1.1
0.75
0.9
60
120
5.0
5.0
5.0
60
75
0.5
mA
mA
dB
%
%
%
Max.
1.262
V
1.270
2.525
2.550
3.333
3.365
0.2
6.0
6.0
0.40
10.0
10.0
1.3
V
V
%
mV
mV
%
mV
mV
V
Unit
appearing in Boldface type apply over the entire junction temperature range for operation, -40℃ to 125℃
Parameter
Symbol
Test Conditions
Reference Voltage
V
REF
Output Voltage
V
OUT
10mA
≤
I
OUT
≤
600mA, 1.4V
≤
V
IN
- V
OUT
≤
8V
P
≤
maximum power dissipation
CM1117A-2.5 I
OUT
= 10mA, V
IN
= 4.5V, T
J=
25℃
10mA
≤
I
OUT
≤
600mA, 3.9V
≤
V
IN
≤
10V
CM1117A-3.3 I
OUT
= 10mA, V
IN
= 5.0V, T
J=
25℃
10mA
≤
I
OUT
≤
600mA, 4.75V
≤
V
IN
≤
10V
CM1117A-ADJ
I
OUT
= 10mA,
1.5V
≤
V
IN
- V
OUT
CM1117A-ADJ I
OUT
= 10mA, V
IN
= V
OUT
2V,
T
J=
25℃
≤
10V
Line Regulator
∆
V
OUT
CM1117A-3.3
I
OUT
= 10mA,
1.5V
≤
V
IN
- V
OUT
≤
10V
CM1117A-2.5
I
OUT
= 10mA,
1.5V
≤
V
IN
- V
OUT
≤
10V
CM1117A-ADJ
(V
IN
= V
OUT
) = 2V,
10mA
≤
I
OUT
≤
600mA
Load Regulation
∆
V
OUT
CM1117A-3.3
CM1117A-2.5
(V
IN
= V
OUT
) = 2V,
10mA
≤
I
OUT
≤
600mA
(V
IN
= V
OUT
) = 2V,
10mA
≤
I
OUT
≤
600mA
Dropout Voltage
Current Limit
Adjust Pin Current
Adjust Pin Current
Change
Minimum Load Current
Quiescent Current
Ripple Rejection
Temperature Stability
Long-Term Stability
RMS Output Noise
(% of V
OUT
)
Thermal Shutdown
Thermal Shutdown
Hysteresis
Thermal Resistance
(Junction to case)
I
LIMIT
∆
V
REF
=1% , I
OUT
= 0.6A
(V
IN
– V
OUT
) = 2V
µ
A
A
1.4V
≤
(V
IN
- V
OUT
)
≤
10V, 10mA
≤
I
OUT
≤
600mA
1.5V
≤
(V
IN
- V
OUT
)
≤
10V(ADJ only)
f = 120Hz, C
OUT
=22
µ
F Tantalum
(V
IN
– V
OUT
)= 3V, I
OUT
=300 mA
T
A
= 125℃, 1000hrs.
T
A
= 25℃,
10Hz
≤
f
≤
10KHz
Junction Temperature
V
IN
= V
OUT
+ 1.25V
0.2
1.7
0.3
0.003
150
25
℃
℃
℃/W
℃/
W
θ
JC
SOT-89
SOT-223
100
33
2005/07/12 Preliminary
Champion Microelectronic Corporation
Page 4
CM1117A
600mA L
OW
D
ROPOUT
V
OLTAGE
R
EGULATOR
APPLICATION CIRCUIT
CM1117A-ADJ
IN
ADJ
10uF
Tantalum
V
IN=
11V
9V at 0.6A
OUT
R1
22uF
Tantalum
R2
V
OUT
= V
REF
* (1+R2/R1) + I
ADJ
*R2
V
IN=5.3
V
10uF
Tantalum
CM1117A-3.3
IN
GND
OUT
3.3V at 0.6A
22uF
Tantalum
Figure 3. Typical Applications of CM1117A
2005/07/12 Preliminary
Champion Microelectronic Corporation
Page 5
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