Datasheet > LTC1844-BYP

LTC1844-BYP

更新时间： 2024-11-18 22:23:55

品牌	Logo	应用领域
凌特 - Linear		稳压器
页数	文件大小	规格书
12页	211K
描述
150mA, Micropower, Low Noise, VLDO Linear Regulator

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LTC1844-BYP 数据手册

Final Electrical Specifications

LTC1844 Series

150mA, Micropower,

Low Noise, VLDO

Linear Regulator

May 2003

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: 30µV_RMS(10Hz to 100kHz)

■

±1.75% Voltage Accuracy Over Temperature,

Voltage and Current Ranges

Fast Transient Response

10nA Supply Current in Shutdown

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.

■

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, stablity 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.

■

Bluetooth/802.11 Cards

■

PDAs and Notebook Computers

■

Portable Instruments and Battery-Powered Systems

Cellular Phones

■

LTC1844-3.3 Dropout Voltage vs Load Current

TYPICAL APPLICATIO

120

100

Fixed Voltage Low Noise, VLDO Linear Regulator

OUT

3.3V

OUT

3.3V TO 6.5V

1µF

LTC1844-3.3

OFF ON

SHDN

BYP

GND

0.1µF

1844 TA01

(mA)

100

125

150

OUT

1844 TA02

1844ia

Information furnished by Linear Technology Corporation is believed to be accurate and reliable.

However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-

tationthattheinterconnectionofitscircuitsasdescribedhereinwillnotinfringeonexistingpatentrights.

12 3 4 5 6 7...12

中文翻译

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与LTC1844-BYP相关器件

型号	品牌	获取价格	描述	数据表
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
LTC1844ES5-1.8#TRM	Linear	获取价格	LTC1844 - 150mA, Micropower, Low Noise, VLDO Linear Regulator; Package: SOT; Pins: 5; Temp
LTC1844ES5-1.8#TRMPBF	Linear	获取价格	LTC1844 - 150mA, Micropower, Low Noise, VLDO Linear Regulator; Package: SOT; Pins: 5; Temp
LTC1844ES5-2.5	Linear	获取价格	150mA, Micropower, Low Noise, VLDO Linear Regulator
LTC1844ES5-2.5#PBF	Linear	获取价格	LTC1844 - 150mA, Micropower, Low Noise, VLDO Linear Regulator; Package: SOT; Pins: 5; Temp
LTC1844ES5-2.5#TRMPBF	Linear	获取价格	LTC1844 - 150mA, Micropower, Low Noise, VLDO Linear Regulator; Package: SOT; Pins: 5; Temp
LTC1844ES5-2.5#TRPBF	Linear	获取价格	LTC1844 - 150mA, Micropower, Low Noise, VLDO Linear Regulator; Package: SOT; Pins: 5; Temp

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