Micropower SOT-23, 120mA
Low-Dropout Voltage Regulator
ON/OFF Switch
CLM2805
FEATURES
Smallest Possible Size (SOT-23-5)
5V, 4.8V, 4.5V, 4V, 3.5V, 3.3V, 3V, 2.5V Fixed Output
Guaranteed Output Current in Excess of 120mA
Available in Adjustable Output With ON/OFF Switch
Internal Thermal Overload Protection
Voltage Dropout is Less Than 100Mv at 50mA Output
Reverse Battery Protection
Short Circuit Protection
Low Cost Solution
APPLICATIONS
Cellular Phone
Palmtop/Laptop Computer
Personal Digital Assistance (PDA)
Radio Control Systems
Camcorder, Camera
Portable Instrumentation
Radio Control Systems
Cordless Telephones
DESCRIPTION
The CLM2805 is a low power voltage regulator. This product
is designed for battery-powered applications such as cordless
telephones, radio control systems and portable computers.
The CLM2805 features very low quiescent current (0.4mA)
and very low dropout put voltage (typ. 50mV at a light load of
300mV at 100mA). Other features include the logic-compatible
on/off input which enables the regulator to be switched on and
off. The CLM2805 is offered in an ultra small package, 5-pin
SOT-23 as a fixed, adjustable with ON/OFF Switch.
The regulator output voltage may be internally pin-strapped
for a 5V, 4.8V, 4.5V, 4V, 3.5V, 3.3V, 3V, 2.5V or programmed
from 3V to 24V with an external pair of resistors. For other fix
voltages consult the factory.
ORDERING INFORMATION
Part
Package
Temperature Range
CLM2805A-X
SOT-23 5-Pin
-40
o
C to 85
o
C
CLM2805C-X
SOT-23 5-Pin
-40
o
C to 85
o
C
CLM2805AZ-X
SOIC 8-Pin
-40
o
C to 85
o
C
CLM2805CZ-X
SOIC 8-Pin
-40
o
C to 85
o
C
X = Output Voltage (for other output voltages consult with factory).
No need for adjustable output.
CORPORATION
PIN CONNECTIONS
CALOGIC CORPORATION,
237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
OUTPUT
GND
GND
ADJ
INPUT
GND
GND
ON/OFF
TOP VIEW
CLM2805
1T-10
1T-11
CLM2805
TOP VIEW
SOT-23-5 (M)
OUT 5
4 ADJ
1
IN
2
GND
3
ON/OFF
ABSOLUTE MAXIMUM RATINGS
Power Dissipation . . . . . . . . . . . . . . . . . . . . . Internally Limited
Lead Temp. (soldering, 5 seconds) . . . . . . . . . . . . . . . . 260
o
C
Storage Temperature Range . . . . . . . . . . . . . -65
o
C to +150
o
C
Operating Junction Temperature Range . . . . . -40
o
C to +85
o
C
Input Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . -3V to +26V
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2KV
CLM2805
DC ELECTRICAL CHARACTERISTICS V
S
= 14V, T
A
= 25
o
C, I
O
= 10mA, C
2
= 100
F, unless otherwise specified (Note 1).
CLM2805A
CLM2805C
PARAMETERS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
CONDITIONS
3.0 VOLT VERSION
CLM2805A-3
CLM2805C-3
Output Voltage
2.94
3.00
3.06
2.91
3.00
3.09
V
2.88
3.00
3.12
2.85
3.00
3.15
6V<V
IN
<26V, I
O
= 120mA Over Temp.
3.3 VOLT VERSION
CLM2805A-3.3
CLM2805C-3.3
Output Voltage
3.23
3.30
3.36
3.20
3.30
3.39
V
3.20
3.30
3.39
3.16
3.30
3.43
6V<V
IN
<26V, I
O
= 120mA Over Temp.
5 VOLT VERSION
CLM2805A-5
CLM2805C-5
Output Voltage
4.81
5.00
5.19
4.75
5.00
5.25
V
4.75
5.25
4.5
5.5
6V<V
IN
<26V, I
O
= 120mA Over Temp.
ALL VOLTAGE OPTIONS
Long Term Stability
20
20
mV/1000
Line Regulation
2.0
10
4.0
30
mV
9V<V
IN
<16V
4.0
30
6V<V
IN
<26V
Load Regulation
14
50
14
50
5mA<I
O
<120mA
Dropout Voltage
0.05
0.2
0.05
0.2
V
I
O
= 10mA
0.07
0.1
0.07
0.1
I
O
= 50mA
0.3
0.6
0.3
0.6
I
O
= 120mA
Quiescent Current
0.4
1.0
0.4
1.0
mA
I
O
= 10mA, 6V<V
IN
<26V, -40
o
C<T
J
<125
o
C
15
15
I
O
= 120mA, V
IN
= 14V, T
J
= 25
o
C
Maximum Operational Input Voltage
26
33
26
33
V
Maximum Line Transient
60
70
70
50
R
L
= 500
, V
O
<5.5V, 100ms
Reverse Polarity Input Voltage, DC
-15
-30
-15
30
V
O
>-3V, R
L
= 500
Reverse Polarity Input Voltage, Transient
-50
-80
-50
-80
1% Duty Cycle,
<100ms, R
L
= 500
Output Noise Voltage
500
500
Vrms
10Hz-100kHz, C
OUT
= 100
F
Ripple Rejection
80
80
dB
f
O
= 12Hz
CORPORATION
CALOGIC CORPORATION,
237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
CLM2805
CORPORATION
ADJUSTABLE V
IN
= 14V, V
O
= 3V, I
O
= 10mA, R
1
= 27k, C
2
= 100
F, T
J
= 25
o
C
PARAMETERS
CLM2805A/C
UNITS
CONDITIONS
MIN
TYP
MAX
Reference Voltage
1.14
1.20
1.26
V
1.08
1.32
I
o
120mA, over Tem. R
1
= 27K
ADJUSTABLE VERSION ONLY V
IN
= 14V, V
O
= 3V, I
O
= 10mA, R
1
= 27k, C
2
= 100
F, T
J
= 25
o
C
PARAMETERS
CLM2805C
UNITS
CONDITIONS
MIN
TYP
MAX
Output Voltage Range
3.0
24
V
Line Regulation
0.2
1.5
mV
V
OUT
+0.6V<V
IN
<26V
Load Regulation
0.3
1.0
% max
5mA<I
O
<100mA
Output Impedance
40
m
/V
100mA DC and 10mA rms, 100Hz - 10kHz
Quiescent Current
0.4
1.0
mA
I
O
= 10mA
15
I
O
= 120mA
0.8
1.0
During Shutdown R
L
= 500
Output Noise Voltage
100
Vrms/V
10Hz - 100kHz
Long Term Stability
0.4
%/1000h
Ripple Rejection
0.02
%/V
f
O
= 120Hz
Dropout Voltage
0.05
0.2
V
I
O
= 10mA
0.3
0.6
I
O
= 120mA
Maximum Operational Input Voltage
26
33
Maximum Line Transient
60
70
I
O
= 10mA, Reference Voltage <1.5V
Reverse Polarity Input Voltage, DC
-15
-30
V
O
>0.3V, R
L
= 500
Reverse Polarity Input Voltage, Transient
-50
-80
1% Duty Cycle, T<100ms, R
L
= 500
On/Off Threshold Current
20
50
A
Threshold Voltage On
2.0
1.2
V
V
O
= 3V
Threshold Voltage Off
3.25
2.2
Notes:
1. See TYPICAL APPLICATIONS notes to ensure constant junction temperature, low duty cycle pulse testing used.
2. All limits are at 125
o
C or over the full operating temperature junction range of -40
o
C to +125
o
C.
3. The maximum power dissipation is a function of maximum junction temperature, total thermal resistance and ambient temperature.
4. Human body model, 100
F discharged through 1.5K
.
CALOGIC CORPORATION,
237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
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