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LTCHK Datasheet

  • LTCHK

  • 20mA, 3V to 80V Low Dropout Micropower Linear Regulator

  • 178.48KB

  • 12頁

  • LINER

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LT3014B
20mA, 3V to 80V
Low Dropout Micropower
Linear Regulator
FEATURES
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DESCRIPTIO
Wide Input Voltage Range: 3V to 80V
Low Quiescent Current: 7碌A(chǔ)
Low Dropout Voltage: 350mV
Output Current: 20mA
LT3014BHV Survives 100V Transients (2ms)
No Protection Diodes Needed
Adjustable Output from 1.22V to 60V
Stable with 0.47碌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
The LT
廬
3014B 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碌A(chǔ) operating) makes
the LT3014B an ideal choice. Quiescent current is also well
controlled in dropout.
Other features of the LT3014B include the ability to oper-
ate with very small output capacitors. The regulators are
stable with only 0.47碌F on the output while most older
devices require between 10碌F and 100碌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 LT3014B regulator is available in
the 5-lead ThinSOT and 8-lead DFN packages.
, LTC and LT 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.
APPLICATIO S
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Low Current High Voltage Regulators
Regulator for Battery-Powered Systems
Telecom Applications
Automotive Applications
TYPICAL APPLICATIO
5V Supply
IN
V
IN
5.4V TO
80V
1碌F
400
350
OUT
LT3014B
ADJ
GND
1.27M
3.92M
V
OUT
5V
20mA
0.47碌F
DROPOUT VOLTAGE (mV)
300
250
200
150
100
50
0
0
2
4
6 8 10 12 14 16 18 20
OUTPUT CURRENT (mA)
3014 TA02
3014 TA01
U
Dropout Voltage
3014bf
U
U
1

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  • 英文版
    20mA, 3V to 80V Low Dropout Micropower Linear Regulator
    LINER
  • 英文版
    20mA, 3V to 80V Low Dropout Micropower Linear Regulator
    LINER

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