Datasheet > LTBRS

LTBRS

更新时间： 2024-11-27 03:52:11

品牌	Logo	应用领域
凌特 - Linear		稳压器
页数	文件大小	规格书
16页	197K
描述
20mA, 3V to 80V Low Dropout Micropower Linear Regulator

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LTBRS 数据手册

LT3014

20mA, 3V to 80V

Low Dropout Micropower

Linear Regulator

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.

■

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

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.

■

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 ThinSOT^TMand

■

8-Lead DFN Packages

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.

■

Low Current High Voltage Regulators

■

Regulator for Battery-Powered Systems

■

Telecom Applications

Automotive Applications

■

TYPICAL APPLICATIO

Dropout Voltage

400

350

300

250

200

150

100

5V Supply with Shutdown

OUT

20mA

LT3014

3.92M

1.27M

5.4V TO

80V

0.47µF

1µF

SHDN

GND

ADJ

3014 TA01

OUTPUT

OFF

SHDN

<0.3V

>2.0V

10 12 14 16 18 20

OUTPUT CURRENT (mA)

3014 TA02

3014fb

12 3 4 5 6 7...16

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