Micropower SOT-23, 120mA
Low-Dropout Voltage Regulator
ON/OFF Switch
CLM2805
FEATURES
DESCRIPTION
CORPORATION
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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
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
CLM2805A-X
CLM2805C-X
CLM2805AZ-X
CLM2805CZ-X
Package
SOT-23 5-Pin
SOT-23 5-Pin
µSOIC
8-Pin
µSOIC
8-Pin
Temperature Range
-40
o
C to 85
o
C
-40
o
C to 85
o
C
-40
o
C to 85
o
C
-40
o
C to 85
o
C
APPLICATIONS
Cellular Phone
Palmtop/Laptop Computer
Personal Digital Assistance (PDA)
Radio Control Systems
Camcorder, Camera
Portable Instrumentation
Radio Control Systems
Cordless Telephones
X = Output Voltage (for other output voltages consult with factory).
No need for adjustable output.
PIN CONNECTIONS
SOT-23-5 (M)
OUT 5
OUTPUT
GND
GND
ADJ
TOP VIEW
INPUT
GND
4 ADJ
CLM2805
CLM2805
GND
ON/OFF
1
IN
2
GND
TOP VIEW
3
ON/OFF
1T-11
1T-10
CALOGIC CORPORATION,
237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
CLM2805
CORPORATION
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
DC ELECTRICAL CHARACTERISTICS
V
S
= 14V, T
A
= 25
o
C, I
O
= 10mA, C
2
= 100µF, unless otherwise specified (Note 1).
CLM2805A
PARAMETERS
3.0 VOLT VERSION
Output Voltage
2.88
3.3 VOLT VERSION
Output Voltage
3.20
5 VOLT VERSION
Output Voltage
4.75
ALL VOLTAGE OPTIONS
Long Term Stability
Line Regulation
4.0
Load Regulation
14
0.05
Dropout Voltage
0.07
0.3
0.4
Quiescent Current
15
Maximum Operational Input Voltage
Maximum Line Transient
Reverse Polarity Input Voltage, DC
Reverse Polarity Input Voltage, Transient
Output Noise Voltage
Ripple Rejection
26
60
-15
-50
33
70
-30
-80
500
80
26
70
-15
-50
15
33
50
30
-80
500
80
µVrms
dB
V
R
L
= 500Ω, V
O
<5.5V, 100ms
V
O
>-3V, R
L
= 500Ω
1% Duty Cycle,
τ<100ms,
R
L
= 500Ω
10Hz-100kHz, C
OUT
= 100µF
f
O
= 12Hz
30
50
0.2
0.1
0.6
1.0
14
0.05
0.07
0.3
0.4
50
0.2
0.1
0.6
1.0
mA
V
mV
20
2.0
10
20
4.0
30
mV/1000
9V<V
IN
<16V
6V<V
IN
<26V
5mA<I
O
<120mA
I
O
= 10mA
I
O
= 50mA
I
O
= 120mA
I
O
= 10mA, 6V<V
IN
<26V, -40
o
C<T
J
<125
o
C
I
O
= 120mA, V
IN
= 14V, T
J
= 25
o
C
5.25
4.5
5.5
3.30
3.39
3.16
3.30
3.43
CLM2805A-5
4.81
5.00
5.19
CLM2805C-5
4.75
5.00
5.25
V
6V<V
IN
<26V, I
O
= 120mA Over Temp.
3.00
3.12
2.85
3.00
3.15
CLM2805A-3.3
3.23
3.30
3.36
CLM2805C-3.3
3.20
3.30
3.39
V
6V<V
IN
<26V, I
O
= 120mA Over Temp.
MIN
TYP
MAX
CLM2805C
MIN
TYP
MAX
UNITS
CONDITIONS
CLM2805A-3
2.94
3.00
3.06
CLM2805C-3
2.91
3.00
3.09
V
6V<V
IN
<26V, I
O
= 120mA Over Temp.
CALOGIC CORPORATION,
237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
CLM2805
CORPORATION
ADJUSTABLE
PARAMETERS
V
IN
= 14V, V
O
= 3V, I
O
= 10mA, R
1
= 27k, C
2
= 100µF, T
J
= 25
o
C
CLM2805A/C
UNITS
MIN
1.14
TYP
1.20
MAX
1.26
V
1.08
1.32
I
o
≤
120mA, over Tem. R
1
= 27K
CONDITIONS
Reference Voltage
ADJUSTABLE VERSION ONLY
PARAMETERS
V
IN
= 14V, V
O
= 3V, I
O
= 10mA, R
1
= 27k, C
2
= 100µF, T
J
= 25
o
C
CLM2805C
UNITS
MIN
TYP
MAX
24
0.2
0.3
40
0.4
1.0
mA
1.0
µVrms/V
%/1000h
%/V
0.2
0.6
V
I
O
= 10mA, Reference Voltage <1.5V
V
O
>0.3V, R
L
= 500Ω
1% Duty Cycle, T<100ms, R
L
= 500Ω
50
1.2
V
V
O
= 3V
µA
f
O
= 120Hz
I
O
= 10mA
I
O
= 120mA
1.5
1.0
V
mV
% max
mΩ/V
V
OUT
+0.6V<V
IN
<26V
5mA<I
O
<100mA
100mA DC and 10mA rms, 100Hz - 10kHz
I
O
= 10mA
I
O
= 120mA
During Shutdown R
L
= 500Ω
10Hz - 100kHz
3.0
CONDITIONS
Output Voltage Range
Line Regulation
Load Regulation
Output Impedance
Quiescent Current
15
0.8
Output Noise Voltage
Long Term Stability
Ripple Rejection
Dropout Voltage
100
0.4
0.02
0.05
0.3
Maximum Operational Input Voltage
Maximum Line Transient
Reverse Polarity Input Voltage, DC
Reverse Polarity Input Voltage, Transient
On/Off Threshold Current
Threshold Voltage On
Threshold Voltage Off
26
60
-15
-50
33
70
-30
-80
20
2.0
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, 100µF discharged through 1.5KΩ.
CALOGIC CORPORATION,
237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
Analog electronics
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