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1
LT3014
3014fb
IN
LT3014
SHDN
1
μ
F
V
IN
5.4V TO
80V
OUT
ADJ
GND
3014 TA01
V
OUT
5V
20mA
0.47
μ
F
3.92M
1.27M
V
SHDN
<0.3V
>2.0V
OUTPUT
OFF
ON
400
350
300
250
200
150
100
50
0
3014 TA02
OUTPUT CURRENT (mA)
D
0
4
10 12
2
6
8
14 16 18 20
■
Wide Input Voltage Range: 3V to 80V
■
Low Quiescent Current: 7
μ
A
■
Low Dropout Voltage: 350mV
■
Output Current: 20mA
■
LT3014HV Survives 100V Transients (2ms)
■
No Protection Diodes Needed
■
Adjustable Output from 1.22V to 60V
■
1
μ
A Quiescent Current in Shutdown
■
Stable with 0.47
μ
F Output Capacitor
■
Stable with Aluminum, Tantalum or Ceramic
Capacitors
■
Reverse-Battery Protection
■
No Reverse Current Flow from Output
■
Thermal Limiting
■
Available in 5-Lead ThinSOT
TM
and
8-Lead DFN Packages
APPLICATIU
20mA, 3V to 80V
Low Dropout Micropower
Linear Regulator
5V Supply with Shutdown
Dropout Voltage
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 (7
μ
A operating and 1
μ
A in
shutdown) makes the LT3014 an ideal choice. Quiescent
current is also well controlled in dropout.
Other features of the LT3014 include the ability to operate
with very small output capacitors. The regulators are
stable with only 0.47
μ
F on the output while most older
devices require between 10
μ
F and 100
μ
F 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.
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.
■
Low Current High Voltage Regulators
■
Regulator for Battery-Powered Systems
■
Telecom Applications
■
Automotive Applications
FEATURES
DESCRIPTIOU
TYPICAL APPLICATIO
U
, 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.