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LT3011IDDPBF

产品描述50mA, 3V to 80V Low Dropout Micropower Linear Regulator with PWRGD
文件大小225KB,共16页
制造商Linear ( ADI )
官网地址http://www.analog.com/cn/index.html
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LT3011IDDPBF概述

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

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FEATURES
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LT3011
50mA, 3V to 80V Low
Dropout Micropower Linear
Regulator with PWRGD
DESCRIPTION
The LT
®
3011 is a high voltage, micropower, low dropout
linear regulator. The device is capable of supplying 50mA of
output current with a dropout voltage of 300mV. Designed
for use in battery-powered high voltage systems, the low
quiescent current (46μA operating and 1μA in shutdown)
is well controlled in dropout, making the LT3011 an ideal
choice.
The LT3011 includes a PWRGD flag to indicate output
regulation. The delay between regulated output level and
flag indication is programmable with a single capacitor.
The LT3011 also has the ability to operate with very small
output capacitors; it is stable with only 1μF on the output.
Small ceramic capacitors can be used without the addition
of any series resistance (ESR) as is common with other
regulators. Internal protection circuitry includes reverse-
battery protection, current limiting, thermal limiting, and
reverse current protection.
The LT3011 features an adjustable output with a 1.24V
reference voltage. The device is available in the thermally
enhanced 12-lead MSOP and the low profile (0.75mm)
10-pin (3mm
×
3mm) DFN package, both providing excel-
lent thermal characteristics.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Wide Input Voltage Range: 3V to 80V
Low Quiescent Current: 46μA
Low Dropout Voltage: 300mV
Output Current: 50mA
PWRGD Flag with Programmable Delay
No Protection Diodes Needed
Adjustable Output from 1.24V to 60V
1μA Quiescent Current in Shutdown
Stable with 1μF Output Capacitor
Stable with Ceramic, Tantalum, and Aluminum
Capacitors
Reverse-Battery Protection
No Reverse Current Flow from Output to Input
Thermal Limiting
Thermally Enhanced 12-Lead MSOP and
10-Pin (3mm
×
3mm) DFN Packages
APPLICATIONS
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Low Current High Voltage Regulators
Regulator for Battery-Powered Systems
Telecom Applications
Automotive Applications
TYPICAL APPLICATION
5V Supply with Shutdown
IN
V
IN
3V TO
80V
1μF
1.6M
OUT
LT3011
ADJ
C
T
249k
V
OUT
5V
50mA
1μF
350
300
DROPOUT VOLTAGE (mV)
250
200
150
100
50
0
0
10
Dropout Voltage
750k
SHDN
PWRGD
GND
POWER GOOD
1000pF
V
SHDN
<0.3V
>2.0V
OUTPUT
OFF
ON
3011 TA01
20
30
40
OUTPUT CURRENT (mA)
50
3011 TA02
3011f
1

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

 
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