LT3014
20mA, 3V to 80V
Low Dropout Micropower
Linear Regulator
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FEATURES
DESCRIPTIO
The LT®3014 is a high voltage, micropower low dropout
linear regulator. The device is capable of supplying 20mA
of output current with a dropout voltage of 350mV. De-
signed for use in battery-powered or high voltage sys-
tems, the low quiescent current (7µA operating and 1µA in
shutdown) makes the LT3014 an ideal choice. Quiescent
current is also well controlled in dropout.
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Wide Input Voltage Range: 3V to 80V
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Low Quiescent Current: 7µA
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Low Dropout Voltage: 350mV
Output Current: 20mA
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LT3014HV Survives 100V Transients (2ms)
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No Protection Diodes Needed
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Adjustable Output from 1.22V to 60V
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1µA Quiescent Current in Shutdown
Other features of the LT3014 include the ability to operate
with very small output capacitors. The regulators are
stable with only 0.47µF on the output while most older
devices require between 10µF and 100µF for stability.
Small ceramic capacitors can be used without the neces-
sary addition of ESR as is common with other regulators.
Internal protection circuitry includes reverse-battery pro-
tection, current limiting, thermal limiting and reverse
current protection.
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Stable with 0.47µF Output Capacitor
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Stable with Aluminum, Tantalum or Ceramic
Capacitors
Reverse-Battery Protection
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No Reverse Current Flow from Output
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Thermal Limiting
Available in 5-Lead ThinSOTTM and
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8-Lead DFN Packages
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APPLICATIO S
Thedeviceisavailableasanadjustabledevicewitha1.22V
reference voltage. The LT3014 regulator is available in the
5-lead ThinSOT and 8-lead DFN packages.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Protected by U.S. Patents including 6118263, 6144250.
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Low Current High Voltage Regulators
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Regulator for Battery-Powered Systems
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Telecom Applications
Automotive Applications
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TYPICAL APPLICATIO
Dropout Voltage
400
350
300
250
200
150
100
50
5V Supply with Shutdown
V
OUT
IN
OUT
5V
20mA
V
IN
LT3014
3.92M
1.27M
5.4V TO
80V
0.47µF
1µF
SHDN
GND
ADJ
3014 TA01
V
OUTPUT
OFF
ON
SHDN
<0.3V
>2.0V
0
0
2
4
6
8
10 12 14 16 18 20
OUTPUT CURRENT (mA)
3014 TA02
3014fb
1