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LT3010-5_15

Description
50mA, 3V to 80V Low Dropout Micropower Linear Regulator
File Size394KB,18 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
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LT3010-5_15 Overview

50mA, 3V to 80V Low Dropout Micropower Linear Regulator

FEATURES
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LT3010/LT3010-5
50mA, 3V to 80V
Low Dropout
Micropower Linear Regulator
DESCRIPTION
The LT
®
3010 is a high voltage, micropower low dropout
linear regulator. The device is capable of supplying 50mA
output current with a dropout voltage of 300mV. Designed
for use in battery-powered or high voltage systems, the low
quiescent current (30µA operating and 1µA in shutdown)
makes the LT3010 an ideal choice. Quiescent current is
also well controlled in dropout.
Other features of the LT3010 include the ability to operate
with very small output capacitors. The regulators are stable
with only 1µF on the output while most older devices re-
quire between 10µF and 100µF for stability. Small ceramic
capacitors can be used without the necessary addition of
ESR as is common with other regulators. Internal protec-
tion circuitry includes reverse-battery protection, current
limiting, thermal limiting and reverse current protection.
The device is available in a fixed output voltage of 5V and
as an adjustable device with a 1.275V reference voltage.
The LT3010 regulator is available in the 8-lead MSOP pack-
age with an exposed pad for enhanced thermal handling
capability.
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property
of their respective owners.
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Wide Input Voltage Range: 3V to 80V
Low Quiescent Current: 30µA
Low Dropout Voltage: 300mV
Output Current: 50mA
Thermally Enhanced 8-Lead MSOP Package
No Protection Diodes Needed
Fixed Output Voltage: 5V (LT3010-5)
Adjustable Output from 1.275V to 60V (LT3010)
1µA Quiescent Current in Shutdown
Stable with 1µF Output Capacitor
Stable with Aluminum, Tantalum or Ceramic
Capacitors
Reverse-Battery Protection
No Reverse Current Flow from Output
Thermal Limiting
APPLICATIONS
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Low Current High Voltage Regulators
Regulator for Battery-Powered Systems
Telecom Applications
Automotive Applications
TYPICAL APPLICATION
Dropout Voltage
350
5V Supply with Shutdown
IN
V
IN
5.4V TO
80V
1µF
OUT
LT3010-5
SHDN
SENSE
GND
30105 TA01
300
V
OUT
5V
50mA
1µF
DROPOUT VOLTAGE (mV)
250
200
150
100
50
0
0
10
40
20
30
OUTPUT CURRENT (mA)
50
30105 TA02
V
SHDN
(PIN 5) OUTPUT
<0.3V
OFF
>2.0V
ON
30105fe
1

LT3010-5_15 Related Products

LT3010-5_15 LT3010_15
Description 50mA, 3V to 80V Low Dropout Micropower Linear Regulator 50mA, 3V to 80V Low Dropout Micropower Linear Regulator

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