Datasheet > LTC1844

LTC1844

更新时间： 2024-11-18 14:58:03

品牌	Logo	应用领域
亚德诺 - ADI		稳压器
页数	文件大小	规格书
12页	207K
描述
150mA、微功率、低噪声、VLDO 线性稳压器

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中文翻译

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LTC1844 数据手册

LTC1844 Series

150mA, Micropower,

Low Noise, VLDO

Linear Regulator

FEATURES

DESCRIPTIO

The LTC 1844 Series are low noise VLDO^TM(very low

■

Very Low Dropout:

90mV at 150mA

dropout)linearregulatorsdesignedforlowpower/portable

applications. These regulators can operate from input

voltages as low as 1.6V. Typical output noise is only

30µV_RMSand typical dropout for the LTC1844-3.3 is just

90mVatthemaximumloadcurrentof150mA, reducingto

30mV at 50mA.

30mV at 50mA (LTC1844-3.3)

■

Wide Input Voltage Range: 1.6V to 6.5V

■

Low 35µA Supply Current, Even in Dropout

■

Low Noise: 60µV_RMS(10Hz to 100kHz)

■

±1.75% Voltage Accuracy Over Temperature,

Voltage and Current Ranges

The internal P-channel MOSFET pass transistor requires

no base current, allowing the device to draw only 35µA

during normal operation, independent of the dropout

voltage and load current. The quiescent current falls to a

negligible 10nA during shutdown.

■

Fast Transient Response

■

10nA Supply Current in Shutdown

■

Fixed Output Voltages: 1.5V, 1.8V, 2.5V, 2.8V, 3.3V

■

Adjustable Output Voltage: 1.25V to 6V

Output Current Limit

■

Other features include high output voltage accuracy,

excellent transient response, stability with ultralow ESR

ceramic capacitors as small as 1µF, reverse-battery and

reverse-current protection, short-circuit and thermal

overload protection and output current limiting.

Reverse-Battery and Reverse-Current Protection

■

No Protection Diodes Needed

■

Stable with 1µF Output Capacitor

■

Stable with Ceramic Capacitors

■

Short-Circuit and Thermal Overload Protection

■

Low Profile (1mm) SOT-23 Package

The LTC1844 regulators are available in a low profile

(1mm) SOT-23 (ThinSOT^TM) package.

APPLICATIO S

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

VLDO and ThinSOT are trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

■

Portable Instruments and Battery-Powered Systems

■

Bluetooth/802.11 Cards

■

Cellular Phones

PDAs and Notebook Computers

■

TYPICAL APPLICATIO

LTC1844-3.3 Dropout Voltage vs Load Current

120

Fixed Voltage Low Noise, VLDO Linear Regulator

100

OUT

3.3V

OUT

3.3V TO 6.5V

1µF

LTC1844-3.3

OFF ON

SHDN

GND

BYP

0.1µF

1844 TA01

(mA)

100

125

150

OUT

1844 TA02

1844fa

12 3 4 5 6 7...12

中文翻译

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与LTC1844相关器件

型号	品牌	获取价格	描述	数据表
LTC1844-1.5	Linear	获取价格	150mA, Micropower, Low Noise, VLDO Linear Regulator
LTC1844-1.8	Linear	获取价格	150mA, Micropower, Low Noise, VLDO Linear Regulator
LTC1844-2.5	Linear	获取价格	150mA, Micropower, Low Noise, VLDO Linear Regulator
LTC1844-2.8	Linear	获取价格	150mA, Micropower, Low Noise, VLDO Linear Regulator
LTC1844-3.3	Linear	获取价格	150mA, Micropower, Low Noise, VLDO Linear Regulator
LTC1844-BYP	Linear	获取价格	150mA, Micropower, Low Noise, VLDO Linear Regulator
LTC1844ES5-1.5	Linear	获取价格	150mA, Micropower, Low Noise, VLDO Linear Regulator
LTC1844ES5-1.8	Linear	获取价格	150mA, Micropower, Low Noise, VLDO Linear Regulator
LTC1844ES5-1.8#PBF	Linear	获取价格	LTC1844 - 150mA, Micropower, Low Noise, VLDO Linear Regulator; Package: SOT; Pins: 5; Temp
LTC1844ES5-1.8#TR	Linear	获取价格	LTC1844 - 150mA, Micropower, Low Noise, VLDO Linear Regulator; Package: SOT; Pins: 5; Temp

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