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LM3490IM5-12 Datasheet

  • LM3490IM5-12

  • 100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator w...

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LM3490 100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator with Logic-Controlled
ON/OFF
June 1999
LM3490
100 mA, SOT-23, Quasi Low-Dropout Linear Voltage
Regulator with Logic-Controlled ON/OFF
General Description
The LM3490 is an integrated linear voltage regulator. It fea-
tures operation from an input as high as 30V and a guaran-
teed maximum dropout of 1.2V at the full 100 mA load. Stan-
dard packaging for the LM3490 is the 5-lead SOT-23
package. A logic-controlled ON/OFF feature makes the
LM3490 ideal for powering subsystems ON and OFF as
needed.
The 5, 12, and 15V members of the LM3490 series are in-
tended as tiny alternatives to industry standard LM78LXX
series and similar devices. The 1.2V quasi low dropout of
LM3490 series devices makes them a nice fit in many appli-
cations where the 2 to 2.5V dropout of LM78LXX series de-
vices precludes their (LM78LXX series devices) use.
The LM3490 series features a 3.3V member. The SOT pack-
aging and quasi low dropout features of the LM3490 series
converge in this device to provide a very nice, very tiny 3.3V,
100 mA bias supply that regulates directly off the system
5V
鹵
5% power supply.
Key Specifications
n
30V maximum input for operation
n
1.2V guaranteed maximum dropout over full load and
temperature ranges
n
100 mA guaranteed load current
n
鹵
5% guaranteed output voltage tolerance over full load
and temperature ranges
n
鈭?0 to +125藲C junction temperature range for operation
Features
n
3.3, 5, 12, and 15V versions available
n
Logic-controlled ON/OFF
n
Packaged in the tiny 5-lead SOT-23 package
Applications
n
n
n
n
Tiny alternative to LM78LXX series and similar devices
Tiny 5V
鹵
5% to 3.3V, 100 mA converter
Post regulator for switching DC/DC converter
Bias supply for analog circuits
Typical Application Circuit
DS100071-2
Connection Diagram
DS100071-1
Top View
SOT-23 Package
5-Lead, Molded-Plastic Small-Outline Transistor (SOT) Package
Package Code MA05B(Note
1)
漏 1999 National Semiconductor Corporation
DS100071
www.national.com

LM3490IM5-12 產(chǎn)品屬性

  • National Semiconductor (TI)

  • 30 V

  • 12 V

  • 0.9 V at 10 mA, 1.1 V at 100 mA

  • 0.1 A

  • 36 mV

  • 1

  • Fixed

  • + 125 C

  • SMD/SMT

  • SOT-23

  • 14 mV

  • 300 mW

  • - 40 C

  • Reel

  • 1000

  • +/- 5 %

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