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LT1965ITTRPBF

更新时间： 2024-11-15 03:44:39

品牌	Logo	应用领域
凌特 - Linear		稳压器
页数	文件大小	规格书
16页	205K
描述
1.1A, Low Noise, Low Dropout Linear Regulator

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LT1965ITTRPBF 数据手册

LT1965

1.1A, Low Noise,

Low Dropout Linear Regulator

FEATURES

DESCRIPTION

The LT^®1965 is a low noise, low dropout linear regulator.

The device supplies 1.1A of output current with a 290mV

typical dropout voltage. Operating quiescent current is

500μA, reducing to <1μA in shutdown. Quiescent current

is well controlled; it does not rise in dropout as with many

other regulators. The LT1965 regulator has very low out-

put noise which makes it ideal for sensitive RF and DSP

supply applications.

■

Output Current: 1.1A

■

Dropout Voltage: 290mV

■

Low Noise: 40μV

500μA Quiescent Current

(10Hz to 100kHz)

RMS

■

Wide Input Voltage Range: 1.8V to 20V

No Protection Diodes Needed

Controlled Quiescent Current in Dropout

Adjustable Output from 1.20V to 19.5V

< 1μA Quiescent Current in Shutdown

Stable with 10μF Output Capacitor

Stable with Ceramic, Tantalum or Aluminum

Electrolytic Capacitors

Reverse Battery Protection

No Reverse Current

Current Limit with Foldback Protection

Thermal Limiting

5-Lead TO-220, DD-PAK, Thermally Enhanced 8-Lead

Output voltage ranges from 1.20V to 19.5V. The LT1965

regulator is stable with output capacitors as low as 10μF.

Internal protection circuitry includes reverse battery pro-

tection, current limiting with foldback, thermal limiting

and reverse current protection. The LT1965 is available

as an adjustable device with a 1.20V reference voltage.

The package offering includes the 5-lead TO-220, 5-lead

DD-PAK as well as the thermally enhanced 8-lead MSOP

■

and 8-lead 3mm × 3mm DFN.

, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

MSOP and 8-Lead 3mm × 3mm DFN Packages

APPLICATIONS

■

Logic Power Supplies

■

Post Regulator for Switching Supplies

■

Low Noise Instrumentation

TYPICAL APPLICATION

Dropout Voltage

3.3V to 2.5V Regulator

400

= 25°C

350

300

250

200

150

100

2.5V

1.1A

OUT

ADJ

> 3V

5.11k

10μF*

TO 20V

LT1965

SHDN

GND

4.75k

*CERAMIC, TANTALUM OR

ALUMINUM ELECTROLYTIC

1965 TA01

0.2

0.6

0.8

1.2

0.4

OUTPUT CURRENT (A)

1965 TA01b

1965f

12 3 4 5 6 7...16

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LT1969CMS#TR	Linear	获取价格	LT1969 - Dual 700MHz, 200mA, Adjustable Current Operational Amplifier; Package: MSOP; Pins
LT1969CMS#TRPBF	Linear	获取价格	LT1969 - Dual 700MHz, 200mA, Adjustable Current Operational Amplifier; Package: MSOP; Pins
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