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PDF CLM2950CN-X Data sheet ( Hoja de datos )
| Número de pieza | CLM2950CN-X | |
| Descripción | 150mA Low Dropout Voltage Regulators | |
| Fabricantes | Calogic LLC | |
| Logotipo |  |
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CORPORATION
150mA Low Dropout
Voltage Regulators
CLM2950 / CLM2951
FEATURES
5V, 3.3V, and 3.0V Versions at 150mA Output
• Very Low Quiescent Current
• Low Dropout Voltage
• Extremely Tight Load and Line Regulation
• Very Low Temperature Coefficient
•• Needs Only 1µF for Stability
Current and Thermal Limiting
•• Unregulated DC Input can Withstand -20V Reverse
Battery and +60V Positive Transients
• Similar Replacement for LP2950/LP2951 Sockets
CLM2951 Versions Only
Error Flag Warns of Output Dropout
• Logic-Controlled Electronic Shutdown
•• Output Programmable from 1.24 to 29V
APPLICATIONS
Battery Powered Systems
• Cordless Telephones
• Radio Control Systems
• Portable / Palm Top / Notebook Computers
• Portable Consumer Equipment
• Portable Instrumentation
• Avionics
• Automotive Electronics
• SMPS Post-Regulator
•• Voltage Reference
PRODUCT DESCRIPTION
Calogic’s CLM2950 and CLM2951 are low power voltage
regulators. These devices are an excellent choice for use in
battery-powered applications such as cordless telephones,
radio control systems, and portable computers. The CLM2950
and CLM2951 features very low quiescent current and very
low dropout voltage (Typ. 50mV at light load and 380mV at
100mA). This includes a tight initial tolerance of 0.5% typ.,
extremely good load and line regulation of 0.05% typ. and
very low output temperature coefficient, making the
CLM2950/CLM2951 useful as a low-power voltage reference.
Other key additional features of this device includes higher
output current (150mA), positive transient protection up to 60V
(Load dump), and the ability to survive an unregulated input
voltage transient of -20V below ground (reverse battery).
The error flag output feature is used as power-on reset for
warning of a low output voltage, due to falling voltage input of
batteries. Another feature is the logic-compatible shutdown
input which enables the regulator to be switched on and off.
The CLM2950 is offered in a 3-pin TO-92 package compatible
with other 5 volt regulators. The CLM2951 is also available in
8-pin plastic and SO-8.
The regulator output voltage may be pin-strapped for a 5V,
3.3V and 3.0 volts or programmed from 1.24 volt to 29 volts
with an external pair of resistors.
ORDERING INFORMATION
PART
PACKAGE TEMPERATURE RANGE
CLM2950ACN-X
CLM2950CN-X
CLM2951ACP-X
CLM2951CP-X
CLM2951ACS-X
CLM2951CS-X
TO-92 (3-Pin)
TO-92 (3-Pin)
Plastic DIP (8-Pin)
Plastic DIP (8-Pin)
Plastic SOIC (8-Pin)
Plastic SOIC (8-Pin)
X = 3.0V, 3.3V or 5.0V
IND.
IND.
IND.
IND.
IND.
IND.
PIN CONNECTIONS
8-PIN SURFACE MOUNT
OUTPUT 1
SENSE 2
SHUTDOWN 3
GROUND 4
CLM2951
8 INPUT
7 FEEDBACK
6 5V OR 3.3V TAP
5 ERROR
TOP VIEW
1D-46
TO-92
123
1. OUTPUT
2. GROUND
3. INPUT
BOTTOM VIEW
1D-47
CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
1 page  
CORPORATION
CLM2950 / CLM2951
TYPICAL PERFORMANCE CHARACTERISTICS
SHUTDOWN
THRESHOLD VOLTAGE
1.8
1.6
1.4
1.2
1.0
0.8
0.6
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (˚C)
1D-49
LINE REGULATION
30
25
20
15
10 TJ = 150˚C
5
IL = 100µA
IL = 1mA
0
10
5 TJ = 125˚C
0
IL = 100µA
–5
–10
5
10 15 20 25 30
INPUT VOLTAGE (V)
1D-50
RATED
OUTPUT CURRENT
180
8-PIN SOIC
160 SOLDERED
TO PC BOARD
140 TJMAX = 125˚C
120 VOUT = 5V
100
80
60 TA = 50˚C
40
TA = 25˚C
20 TA = 85˚C
0
0 5 10 15 20 25 30
INPUT VOLTAGE (V)
1E-01
125
100
75
50
25
0
–25
–50
100mA
100µA
LOAD TRANSIENT
RESPONSE
CL = 4.7µF
VOUT = 5V
02468
TIME (mS)
10
1E-02
80
60
40
20
0
–20
–40
–60
100mA
100µA
LOAD TRANSIENT
RESPONSE
CL = 15µF
VOUT = 5V
0 4 8 12 16
TIME (mS)
20
1E-03
ENABLE TRANSIENT
7
6 CL = 1.5µF
5
4
3
IL = 10mA
2 VIN = 8V
1
CL = 10µF
VOUT = 5V
0
2
0
–2
–100 0 100 200 300 400 500 600 700
TIME (µs)
1E-04
ERROR
COMPARATOR OUTPUT
8
VOUT = 5V
6
4
HYSTERESIS
2
0
NOTE: PULLUP RESISTOR
–2 TO SEPARATE 5V SUPPLY
01234
INPUT VOLTAGE (V)
5
6
1E-05
COMPARATOR
SINK CURRENT
2.5
2.0 TA = 125˚C
1.5 TA = 25˚C
1.0
TA = –55˚C
0.5
0.0
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1E-06
400mV
LINE TRANSIENT
RESPONSE
200mV
0
–50mV
8V
CL = 4.7µF
IL = 1mA
VOUT = 5V
6V
4V
0
200 400 600 800
1E-07
CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet CLM2950CN-X.PDF ] | |
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