1.0A Low Dropout Regulator
CLM2810
FEATURES
Guaranteed 1.0A Output
Three Terminal Adjustable or Fixed 2.85V, 3V, 3.3V, 5V,
10V and 12V
Very Low Quiescent Current
Low Dropout Voltage of 1.2V at Full Load
Extremely Tight Load and Line Regulation
Very Low Temperature Coefficient
Fixed 2.85V Device for SCSI-II Active Terminator
Logic-Controlled Electronic Shutdown
Internal Overcurrent Limiting and Thermal Overload
Protection
Surface Mount Package SOT-223, DD PAK and TO-220
APPLICATIONS
SCSI-II Active Terminator
Portable/Palm Top/Notebook Computers
Battery Chargers
Disk Drives
Portable Consumer Equipment
Portable Instrumentation
SMPS Post-Regulator
DESCRIPTION
The CLM2810 is a low power, positive voltage regulator. The
device has been designed to provide an output current of 1A
while complying with SCSI-II specifications with a fixed output
voltage of 2.85V. Applications include battery-powered and
portable computers. The device has a low quiescent current
while providing 1.2V drop-out voltage at a full load. Product is
available as an adjustable LDO or fixed 2.85V, 3.0V, 3.3V and
5.0V output voltages.
ORDERING INFORMATION
Part
Package
Description
Temperature
CLM2810U
TO-220
Adjustable
-40
o
C to +85
o
C
CLM2810M
SOT-223
Adjustable
-40
o
C to +85
o
C
CLM2810U-X TO-220
X = output voltage -40
o
C to +85
o
C
CLM2810M-X SOT-223
M = output voltage -40
o
C to +85
o
C
CLM2810AT
DD
Adjustable
-40
o
C to +85
o
C
CLM2810AT-X DD
X = output voltage -40
o
C to +85
o
C
CORPORATION
PIN CONNECTIONS
1T-29
FRONT VIEW
V
IN
V
OUT
CL
M
2
810
-
3
.
3
PLASTIC PACKAGE TO-220
GND
1T-28
PLASTIC DD PACKAGE
FRONT VIEW
CLM2
8
1
0
3
2
1
V
ADJ
V
OUT
V
IN
SOT-223
TAB IS
GND
CLM2810
GND
1
2
3
1T-30
FRONT VIEW
V
OUT
V
IN
CALOGIC CORPORATION,
237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
ABSOLUTE MAXIMUM RATINGS
Power Dissipation . . . . . . . . . . . . . . . . . . . . . Internally Limited
Lead Temp. (Soldering, 5 Seconds) . . . . . . . . . . . . . . . 260C
Storage Temperature Range . . . . . . . . . . . . . . -65 to +150C
Operating Junction Temperature Range . . . . -40C to +125C
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5V to 6V
Input Supply Voltage . . . . . . . . . . . . . . . . . . . . . -20V to +20V
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2KV Min
CLM2810
CORPORATION
ELECTRICAL CHARACTERISTICS: V
IN
= V
OUT
+1, T
A
= 25
o
C, CL = 3.3
f, unless otherwise noted. Boldface apply over full
operating temperature range.
PARAMETER
TYP
MIN
MAX
UNITS
CONDITIONS
Output Voltage
2.85
2.85
2.85
3.0
3.0
3.30
3.30
5.0
5.0
2.82
2.79
2.79
2.97
2.94
3.27
3.24
4.95
4.90
2.88
2.91
2.91
3.03
3.06
3.33
3.36
5.05
5.10
V
I
OUT
= 10mA, V
IN
= 4.85V
0
I
OUT
1A, 4.25
V
IN
10V
0
I
OUT
500mA, V
IN
= 4.05V
I
OUT
= 10mA, V
IN
= 5.00V
0
I
OUT
1A, 4.50
V
IN
10V
I
OUT
= 10mA, V
IN
= 5.30V
0
I
OUT
1A, 4.80
V
IN
10V
I
OUT
= 10mA, V
IN
= 7.00V
0
I
OUT
1A, 6.50
V
IN
12V
Output Voltage
Temperature Stability
0.05
%
(Note 1)
Line Regulation
1.00
1.00
1.00
1.00
6.00
7.00
7.00
10.00
mV
4.25V
V
IN
10V, V
OUT
= 2.85, I
OUT
= 0
4.50V
V
IN
12V, V
OUT
= 3.00, I
OUT
= 0
4.80V
V
IN
12V, V
OUT
= 3.30, I
OUT
= 0
6.50V
V
IN
15V, V
OUT
= 5.00, I
OUT
= 0
Load Regulation
1.00
1.00
1.00
1.00
10.00
12.00
12.00
15.00
mV
0
I
OUT
1A, V
IN
= 4.25V, V
OUT
= 2.85
0
I
OUT
1A, V
IN
= 4.50V, V
OUT
= 3.00
0
I
OUT
1A, V
IN
= 4.80V, V
OUT
= 3.30
0
I
OUT
1A, V
IN
= 6.50V, V
OUT
= 5.00
Dropout Voltage
(Note 2)
1.00
1.05
1.10
1.10
1.15
1.20
V
I
L
= 100mA
I
L
= 500mA
I
L
= 1A
Quiescent Current
5.00
10.00
mA
4.25V
V
IN
6.5V
Current Limit
800
950
1200
mA
(V
IN
- V
OUT
) = 5V
Thermal Regulation
0.01
0.1
%/W
25
o
C, 30ms Pulse
Ripple Rejection
60
75
dB
f
RIPPLE
= 120Hz, (V
IN
- V
OUT
) = 3V, V
RIPPLE
= 1V
p-p
Long Term Stability
0.03
%
125
o
C, 1000Hrs
RMS Output Noise
0.003
%
% of V
OUT
, 10Hz
f
10kHz
Thermal Resistance
15
o
C/W
o
Junction to case, at tab
Note 1: Output temperature coefficient is defined as the worst case voltage change divided by the total temperature range.
Note 2: Dropout voltage is defined as the input to output differential at which the output voltage drops 100mV below its nominal value measured
at 1V differential at very low values of programmed output voltage, the minimum input supply voltage of 2V (2.3V over temperature) must be
taken input account.
Note 3: Thermal regulation is defined as the change in output voltage at a time T after a change in power dissipation is applied,
excluding load or line regulation effect.
CALOGIC CORPORATION,
237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
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