LTC1844ES5-3.3 Linear Technology Corporation, LTC1844ES5-3.3 Datasheet

LTC1844ES5-3.3

Manufacturer Part Number

LTC1844ES5-3.3

Description

Manufacturer

Linear Technology Corporation

Datasheets

1.LTC1844ES5-SD-TRPBF.pdf (12 pages)

2.LTC1844ES5-SD.pdf (12 pages)

3.LTC1844ES5-SD.pdf (12 pages)

Specifications of LTC1844ES5-3.3

Date_code

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LTC1844ES5-3.3

Manufacturer:

Quantity:

10 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

LTC1844ES5-3.3

Manufacturer:

LINEAR/凌特

Quantity:

20 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LTC1844ES5-3.3#TR

Manufacturer:

Quantity:

1 800

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LTC1844ES5-3.3#TRMPBF

Manufacturer:

Quantity:

19 400

Company:

Meier Automation Equipment Co., Limited

Part Number:

LTC1844ES5-3.3#TRMPBF

Manufacturer:

LT/凌特

Quantity:

20 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

LTC1844ES5-3.3#TRPB

Manufacturer:

LT/凌特

Quantity:

20 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

LTC1844ES5-3.3#TRPBF

Manufacturer:

TI/德州仪器

Quantity:

20 000

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FEATURES

TYPICAL APPLICATIO

■

APPLICATIO S

■

Portable Instruments and Battery-Powered Systems

Bluetooth/802.11 Cards

Cellular Phones

PDAs and Notebook Computers

Very Low Dropout:

90mV at 150mA

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

±1.75% Voltage Accuracy Over Temperature,

Voltage and Current Ranges

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

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

Fixed Voltage Low Noise, VLDO Linear Regulator

3.3V TO 6.5V

OFF ON

1µF

RMS

SHDN

(10Hz to 100kHz)

LTC1844-3.3

GND

OUT

BYP

1844 TA01

1µF

0.1µF

3.3V

OUT

DESCRIPTIO

The LTC

dropout) linear regulators designed for low power/portable

applications. These regulators can operate from input

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

30µV

90mV at the maximum load current of 150mA, reducing to

30mV at 50mA.

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.

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.

The LTC1844 regulators are available in a low profile

(1mm) SOT-23 (ThinSOT

VLDO and ThinSOT are trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

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

RMS

LTC1844-3.3 Dropout Voltage vs Load Current

1844 Series are low noise VLDO

and typical dropout for the LTC1844-3.3 is just

120

100

150mA, Micropower,

Low Noise, VLDO

Linear Regulator

OUT

) package.

(mA)

LTC1844 Series

100

125

1844 TA02

150

(very low

1844fa

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