LT3014
20mA, 3V to 80V
Low Dropout Micropower
Linear Regulator
DESCRIPTION
FEATURES
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Wide Input Voltage Range: 3V to 80V
Low Quiescent Current: 7µA
Low Dropout Voltage: 350mV
Output Current: 20mA
LT3014HV Survives 100V Transients (2ms)
No Protection Diodes Needed
Adjustable Output from 1.22V to 60V
1µA Quiescent Current in Shutdown
Stable with 0.47µF Output Capacitor
Stable with Aluminum, Tantalum or Ceramic
Capacitors
Reverse-Battery Protection
No Reverse Current Flow from Output
Thermal Limiting
Available in 5-Lead ThinSOTTM and
8-Lead DFN Packages
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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 necessary addition of
ESR as is common with other regulators. Internal protection circuitry includes reverse-battery protection, current
limiting, thermal limiting and reverse current protection.
The device is available as an adjustable device with a 1.22V
reference voltage. The LT3014 regulator is available in the
5-lead ThinSOT and 8-lead DFN packages.
APPLICATIONS
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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. Designed
for use in battery-powered or high voltage systems, the low
quiescent current (7μA operating and 1μA in shutdown)
makes the LT3014 an ideal choice. Quiescent current is
also well controlled in dropout.
Low Current High Voltage Regulators
Regulator for Battery-Powered Systems
Telecom Applications
Automotive Applications
L, 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.
TYPICAL APPLICATION
5V Supply with Shutdown
Dropout Voltage
400
VIN
5.4V TO
80V
OUT
LT3014
3.92M
VOUT
5V
20mA
0.47μF
1μF
SHDN
GND
ADJ
1.27M
3014 TA01
VSHDN OUTPUT
<0.3V
OFF
>2.0V
ON
350
DROPOUT VOLTAGE (mV)
IN
300
250
200
150
100
50
0
0
2
4
6 8 10 12 14 16 18 20
OUTPUT CURRENT (mA)
3014 TA02
3014fd
1