LT1763CDE-5-PBF datasheet, PDF

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LT1763CDE-5-PBF: Description1.22 V-20 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.45 V DROPOUT, PDSO12; Categorysemiconductor Power management; File Size1MB，22 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html

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LT1763CDE-5-PBF Overview

1.22 V-20 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.45 V DROPOUT, PDSO12

LT1763CDE-5-PBF Parametric

Parameter Name	Attribute value
Number of functions	1
Number of terminals	12
Maximum output current	0.5000 A
Maximum output voltage	20 V
Minimum output voltage	1.22 V
Processing package description	4 X 3 MM, 0.75 MM HEIGHT, PLASTIC, MO-229WGED, DFN-12
state	ACTIVE
packaging shape	RECTANGULAR
Package Size	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
surface mount	Yes
Terminal form	NO LEAD
Terminal spacing	0.5000 mm
terminal coating	TIN LEAD
Terminal location	DUAL
Packaging Materials	PLASTIC/EPOXY
Maximum voltage difference	0.4500 V
Adjustment type	ADJUSTABLE POSITIVE LDO REGULATOR

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LT1763 Series

500mA, Low Noise, LDO

Micropower Regulators

FEATURES

DESCRIPTION

The LT

1763 series are micropower, low noise, low dropout

regulators. The devices are capable of supplying 500mA of

output current with a dropout voltage of 300mV. Designed

for use in battery-powered systems, the low 30μA quiescent

current makes them an ideal choice. Quiescent current is

well controlled; it does not rise in dropout as it does with

many other regulators.

A key feature of the LT1763 regulators is low output noise.

With the addition of an external 0.01μF bypass capacitor,

output noise drops to 20μV

RMS

over a 10Hz to 100kHz

bandwidth. The LT1763 regulators are stable with output

capacitors as low as 3.3μF. 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 parts come in ﬁxed output voltages

of 1.5V, 1.8V, 2.5V, 3V, 3.3V and 5V, and as an adjustable

device with a 1.22V reference voltage. The LT1763

regulators are available in 8-lead SO and 12-lead, low

proﬁle (4mm

3mm

0.75mm) DFN packages.

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

ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property

of their respective owners. Protected by U.S. Patents including 6144250, 6118263.

Low Noise: 20μV

RMS

(10Hz to 100kHz)

Output Current: 500mA

Low Quiescent Current: 30μA

Wide Input Voltage Range: 1.8V to 20V

Low Dropout Voltage: 300mV

Very Low Shutdown Current: < 1μA

No Protection Diodes Needed

Fixed Output Voltages: 1.5V, 1.8V, 2.5V, 3V, 3.3V, 5V

Adjustable Output from 1.22V to 20V

Stable with 3.3μF Output Capacitor

Stable with Aluminum, Tantalum or Ceramic

Capacitors

Reverse Battery Protection

No Reverse Current

Overcurrent and Overtemperature Protected

8-Lead SO and 12-Lead (4mm

3mm) DFN

Packages

APPLICATIONS

Cellular Phones

Battery-Powered Systems

Noise-Sensitive Instrumentation Systems

TYPICAL APPLICATION

3.3V Low Noise Regulator

DROPOUT VOLTAGE (mV)

3.3V AT 500mA

20μV

RMS

NOISE

10μF

0.01μF

400

350

3.7V TO

20V

1μF

OUT

SENSE

LT1763-3.3

SHDN

BYP

GND

1763 TA01

Dropout Voltage

300

250

200

150

100

300

400

200

OUTPUT CURRENT (mA)

500

1763 TA02

1763fg

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