LM2931 Datasheet, PDF (1/8 Pages) National Semiconductor (TI) – Series Low Dropout Regulators

Bay Linear
Linear Excellence
100mA Low Dropout Voltage Regulator
LM2931
Description
The Bay Linear LM2931 are low power voltage regulators
designed for a wide range of applications. They are an
excellent choice for use in Battery Powered applications. The
LM2931 feature low quiescent current (100 µA Typ.) and low
dropout of only 60mV at light loads and 300mV (typ.) at
100mA. The LM2931 has tight initial tolerance of 0.5% typ.,
extremely good load and line regulation of 0.05% typ. and very
low output temperature coefficient.
The Bay Linear LM2931 is available as a fixed voltage
regulator and as an adjustable regulator in TO-92 and 8SOIC
packages. The Bay Linear LM2931 in an 8SOIC package has
an adjustable output voltage from 3V to 24V, programmed
with a pair of external resistor. The logic compatible shutdown
enables the regulator to be switched ON and OFF.
Features
• Guaranteed 100mA Output
• Fixed Versions 3.3V, 50.V, 8.0
• Very Low Quiescent Current
• Low Dropout Voltage
• Extremely Tight Load and Line
Regulation
• Very Low Temperature Coefficient
• Current and Thermal Limiting
• Reverse Battery Protection of –20V
• Transient protection of 60V
• Output programmable from 3V to 24V
Applications
• Battery Powered Systems
• Portable instrumentation
• Notebooks Computers
• Potable Consumer Equipment
• Automotive electronics
• SMPS Post-Regulator
Pin Connection
SOT-89
BAY
LM2931
INPUT GND OUTPUT
Front View
TO-92
12 3
OUTPUT
GROUND
Bottom View
INPUT
8SOIC (M)
Output
GND
GND
Feedback
1
8
2
7
3
6
4
5
Input
GND
GND
Shutdown
Ordering Information
Package
SOT-89
TO-92
8-SOIC
Tolerance
LM2931R-XX
LM2931Z-XX
LM2931M-XX
“XX” Voltage Selection Guide
Vout
3.3V
5.0V
8.0V
8.5V
9.0V
10.0V
12.0V
15.0V
Adjustable
XX Code
33
50
80
85
90
10
12
15
Left Blank
Bay Linear, Inc 2478 Armstrong Street, Livermore, CA 94550 Tel: [phone], Fax: [phone]
www.baylinear.com