LT1761IS5-1.8-TRPBF datasheet, PDF

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LT1761IS5-1.8-TRPBF: Description3 V FIXED POSITIVE LDO REGULATOR, 0.45 V DROPOUT, PDSO5; Categorysemiconductor Power management; File Size1MB，22 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html

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LT1761IS5-1.8-TRPBF Overview

3 V FIXED POSITIVE LDO REGULATOR, 0.45 V DROPOUT, PDSO5

LT1761IS5-1.8-TRPBF Parametric

Parameter Name	Attribute value
Number of functions	1
Number of terminals	5
Maximum output current	0.1000 A
Maximum output voltage	3.09 V
Minimum output voltage	2.9 V
Maximum input voltage	20 V
Minimum input voltage	3.5 V
Processing package description	Plastic, MO-193, TSOT-23, 5 PIN
state	ACTIVE
packaging shape	Rectangle
Package Size	SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
surface mount	Yes
Terminal form	GULL WING
Terminal spacing	0.9500 mm
terminal coating	tin lead
Terminal location	pair
Packaging Materials	Plastic/Epoxy
Maximum voltage difference	0.4500 V
Adjustment type	Fixed Positive Voltage Low Dropout Linear Regulator Regulator
Rated output voltage	3 V

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LT1761 Series

100mA, Low Noise,

LDO Micropower

Regulators in TSOT-23

FEATURES

DESCRIPTION

The LT

1761 series are micropower, low noise, low

dropout regulators. With an external 0.01μF bypass

capacitor, output noise drops to 20μV

RMS

over a 10Hz to

100kHz bandwidth. Designed for use in battery-powered

systems, the low 20μA quiescent current makes them an

ideal choice. In shutdown, quiescent current drops to less

than 0.1μA. The devices are capable of operating over an

input voltage from 1.8V to 20V, and can supply 100mA of

output current with a dropout voltage of 300mV. Quiescent

current is well controlled, not rising in dropout as it does

with many other regulators.

The LT1761 regulators are stable with output capacitors as

low as 1μF Small ceramic capacitors can be used without

the series resistance required by other regulators.

Internal protection circuitry includes reverse battery

protection, current limiting, thermal limiting and reverse

current protection. The device is available in ﬁxed output

voltages of 1.2V, 1.5V, 1.8V, 2V, 2.5V, 2.8V, 3V, 3.3V and

5V, and as an adjustable device with a 1.22V reference

voltage. The LT1761 regulators are available in the 5-lead

TSOT-23 package.

LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks

of Linear Technology Corporation. All other trademarks are the property of their respective

owners.

Low Noise: 20μV

RMS

(10Hz to 100kHz)

Low Quiescent Current: 20μA

Wide Input Voltage Range: 1.8V to 20V

Output Current: 100mA

Very Low Shutdown Current: <0.1μA

Low Dropout Voltage: 300mV at 100mA

Fixed Output Voltages: 1.2V, 1.5V, 1.8V, 2V, 2.5V,

2.8V, 3V, 3.3V, 5V

Adjustable Output from 1.22V to 20V

Stable with 1μF Output Capacitor

Stable with Aluminum, Tantalum or

Ceramic Capacitors

Reverse-Battery Protected

No Reverse Current

No Protection Diodes Needed

Overcurrent and Overtemperature Protected

Available in Tiny 5-Lead TSOT-23 Package

APPLICATIONS

Cellular Phones

Pagers

Battery-Powered Systems

Frequency Synthesizers

Wireless Modems

TYPICAL APPLICATION

10Hz to 100kHz Output Noise

5V Low Noise Regulator

5.4V TO

20V

1μF

SHDN

GND

OUT

LT1761-5

BYP

0.01μF

5V AT100mA

20μV

RMS

NOISE

10μF

1761 TA01

OUT

100μV/DIV

20μV

RMS

1761 TA01b

1761sff

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