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LM7915CT/NOPB 其他数据使用手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
稳压芯片
封装:
TO-220-3
描述:
TEXAS INSTRUMENTS LM7915CT/NOPB 线性稳压器
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LM7915CT/NOPB数据手册
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LM79XX Series
3-Terminal Negative Regulators
General Description
The LM79XX series of 3-terminal regulators is available with
fixed output voltages of −5V, −12V, and −15V. These devices
need only one external component—a compensation ca-
pacitor at the output. The LM79XX series is packaged in the
TO-220 power package and is capable of supplying 1.5A of
output current.
These regulators employ internal current limiting safe area
protection and thermal shutdown for protection against vir-
tually all overload conditions.
Low ground pin current of the LM79XX series allows output
voltage to be easily boosted above the preset value with a
resistor divider. The low quiescent current drain of these
devices with a specified maximum change with line and load
ensures good regulation in the voltage boosted mode.
For applications requiring other voltages, see LM137
datasheet.
Features
n Thermal, short circuit and safe area protection
n High ripple rejection
n 1.5A output current
n 4% tolerance on preset output voltage
Connection Diagrams Typical Applications
*
Required if regulator is separated from filter capacitor by
more than 3". For value given, capacitor must be solid
tantalum. 25µF aluminum electrolytic may be substituted.
†
Required for stability. For value given, capacitor must be
solid tantalum. 25µF aluminum electrolytic may be substi-
tuted. Values given may be increased without limit.
For output capacitance in excess of 100µF, a high current
diode from input to output (1N4001, etc.) will protect the
regulator from momentary input shorts.
TO-220 Package
DS007340-14
Front View
Order Number LM7905CT, LM7912CT or LM7915CT
See NS Package Number TO3B
Fixed Regulator
DS007340-3
September 2001
LM79XX Series 3-Terminal Negative Regulators
© 2001 National Semiconductor Corporation DS007340 www.national.com
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