0.1A LOW DROPOUT VOLTAGE REGULATORS
Features
-
-
-
-
-
-
-
-
-
-
High accuracy output voltage
Guaranteed 0.1A output
Very low quiescent current
Low dropout voltage
Extermely tight load and line regulation
Very low temperature coefficent
Need only 1uF for stability
Error flag warns of output dropout
Logi-control electronic shutdown
Output programmable from 1.24 to 29V
LM2950
TO-92
Applications
- Battery powered systems
- Cordless telephones
- Radio control systems
- Portable/Palm top/Notebook
computer
- Portable consumer equipment
- Portable Instrumentation
- Avionics
- Automotive Electronics
- SMPS Post-Regulator
- Voltage Reference
1. Vout 2. Gnd 3. Vin
1
ORDERING INFORMATION
DEVICE
LM2950L-XX
Adjustable=AD )
PKG
TO-92
(XX= Output Voltage=2.85, 3.0, 3.3, 5.0V
PRODUCT DESCRIPTION
The LM2950 is a low power voltage regulator. This device excellent choice for use in battery powered
application such as cordless telephone, radio control systems, and portable computers.
The LM2950 features very low quiescent current (75銕?Typ.) and very low drop output voltage
(Typ. 40銕?at light load and 380銕?at 100銕?.
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 LM2950 useful as a low-power voltage reference.
The error flag output feature is used as power-on reset for warn of a low output voltage, due to
following batteries on input. Other feature is the logic-compatible shutdown input which enable the
regulator to be switched on and off. The LM2950 is available in 8-pin plastic packages.
The regulator output voltage may be pin-strapped for a -XX volt or programmed from 1.24 volt to 29 volts
with external pair of resistors. The LM2950 is offered in 3-pin to-92 package compatible with other
fixed regulator.
BLOCK DIAGRAM AND TYPICAL APPLICATIONS
UNREGULATED DC
INPUT
OUTPUT
+
-
V
O
UT
100銕?/div>
MAX
1銕?/div>
60K鈩?/div>
GROUND
-
+
1.23V
REFERENCE
ERROR
AMPLIFIER
+
HTC
1
1
2
3
