Datasheet > 1764EFE

1764EFE

更新时间： 2024-11-11 06:21:11

品牌	Logo	应用领域
凌特 - Linear		稳压器
页数	文件大小	规格书
20页	278K
描述
3A, Fast Transient Response, Low Noise,LDO Regulators

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1764EFE 数据手册

LT1764 Series

3A, Fast Transient

Response, Low Noise,

LDO Regulators

FEATURES

DESCRIPTIO

The LT^®1764 is a low dropout regulator optimized for fast

transient response. The device is capable of supplying 3A

of output current with a dropout voltage of 340mV. Oper-

ating quiescent current is 1mA, dropping to <1µA in

shutdown. Quiescentcurrentiswellcontrolled;itdoesnot

rise in dropout as it does with many other regulators. In

addition to fast transient response, the LT1764 has very

low output voltage noise which makes the device ideal for

sensitive RF supply applications.

■

Optimized for Fast Transient Response

■

Output Current: 3A

■

Dropout Voltage: 340mV at 3A

■

Low Noise: 40µV_RMS(10Hz to 100kHz)

■

1mA Quiescent Current

Wide Input Voltage Range: 2.7V to 20V

No Protection Diodes Needed

Controlled Quiescent Current in Dropout

Fixed Output Voltages: 1.5V, 1.8V, 2.5V, 3.3V

Adjustable Output from 1.21V to 20V

<1µA Quiescent Current in Shutdown

Stable with 10µF Output Capacitor

Reverse Battery Protection

Output voltage range is from 1.21V to 20V. The LT1764

regulatorsarestablewithoutputcapacitorsaslowas10µF.

Internal protection circuitry includes reverse battery pro-

tection, current limiting, thermal limiting and reverse cur-

rent protection. The device is available in fixed output

voltages of 1.5V, 1.8V, 2.5V, 3.3V and as an adjustable

device with a 1.21V reference voltage. The LT1764 regu-

lators are available in 5-lead TO-220, DD and Exposed Pad

16-lead TSSOP packages.

No Reverse Current

Thermal Limiting

Available in 5-Lead TO-220, DD and 16-Lead

TSSOP Packages

APPLICATIO S

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

All other trademarks are the property of their respective owners. Protected by U.S. Patents,

including 6144250, 6118263.

■

3.3V to 2.5V Logic Power Supply

Post Regulator for Switching Supplies

■

TYPICAL APPLICATIO

Dropout Voltage

400

350

300

250

200

150

100

3.3V to 2.5V

Regulator

OUT

2.5V

OUT

> 3V

10µF

LT1764-2.5

SHDN SENSE

GND

1764 TA01

2.5

0.5

1.0

1.5

2.0

3.0

LOAD CURRENT (A)

1764 TA02

1764fb

12 3 4 5 6 7...20

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