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LT3029

3029fa

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com

©LINEAR TECHNOLOGY CORPORATION 2010

LT 0311 REV A • PRINTED IN USA

RELATED PARTS

TYPICAL APPLICATION

PART NUMBER

DESCRIPTION

COMMENTS

LT1761

100mA, Low Noise Micropower LDO

VIN: 1.8V to 20V, VOUT(MIN) = 1.22V, VDO = 0.3V, IQ = 20μA, ISD < 1μA,

Low Noise < 20μVRMS, Stable with 1μF Ceramic Capacitors, ThinSOT

TM Package

LT1763

500mA, Low Noise Micropower LDO

VIN: 1.8V to 20V, VOUT(MIN) = 1.22V, VDO = 0.3V, IQ = 30μA, ISD < 1μA,

Low Noise < 20μVRMS, S8 and DFN Packages

LT1963/

LT1963A

1.5A, Low Noise, Fast Transient

Response LDOs

VIN: 2.1V to 20V, VOUT(MIN) = 1.21V, VDO = 0.34V, IQ = 1mA, ISD < 1μA,

Low Noise: < 40μVRMS, “A” Version Stable with Ceramic Capacitors;

DD, TO220-5, SOT223, S8 and TSSOP Packages

LT1964

200mA, Low Noise Micropower,

Negative LDO

VIN: –1.9V to –20V, VOUT(MIN) = –1.22V, VDO = 0.34V, IQ = 30μA, ISD = 3μA,

Low Noise: <30μVRMS, Stable with Ceramic Capacitors, ThinSOT Package

LT1965

1.1A, Low Noise LDO

VIN: 1.8V to 20V, VOUT(MIN) = 1.20V, VDO = 0.31V, IQ = 0.5mA, ISD < 1μA,

Low Noise: <40μVRMS, Stable with Ceramic Capacitors; 3mm × 3mm DFN,

MS8E, DD-Pak and TO-220 Packages

LT3020

100mA, Low Voltage VLDO

VIN: 0.9V to 10V, VOUT(MIN) = 0.20V, VDO = 0.15V, IQ = 120μA, ISD < 3μA;

3mm

× 3mm DFN and MS8 Packages

LT3021

500mA, Low Voltage VLDO

VIN: 0.9V to 10V, VOUT(MIN) = 0.20V, VDO = 0.16V, IQ = 120μA, ISD < 3μA;

5mm

× 5mm DFN and SO8 Packages

LT3023

Dual 100mA, Low Noise,

Micropower LDO

VIN: 1.8V to 20V, VOUT(MIN) = 1.22V, VDO = 0.30V, IQ = 40μA, ISD < 1μA;

DFN and MS10E Packages

LT3024

Dual 100mA/500mA, Low Noise,

Micropower LDO

VIN: 1.8V to 20V, VOUT(MIN) = 1.22V, VDO = 0.30V, IQ = 60μA, ISD < 1μA;

DFN and TSSOP-16E Packages

LTC3025

300mA, Low Voltage Micropower VLDO

VIN: 0.9V to 5.5V, Low IQ: 54μA, Low Noise < 80μVRMS, 45mV Dropout Voltage;

2mm

× 2mm 6-Lead DFN Package

LTC3026

1.5A, Low Input Voltage VLDO

VIN: 1.14V to 5.5V, Low IQ: 950μA, Low Noise < 110μVRMS, 100mV Dropout Voltage;

10-Lead 3mm

× 3mm DFN and MS10E Packages

LT3027

Dual 100mA, Low Noise, Micropower

LDO with Independent Inputs

VIN: 1.8V to 20V, VOUT(MIN) = 1.22V, VDO = 0.30V, IQ = 50μA, ISD < 1μA;

DFN and MS10E Packages

LT3028

Dual 100mA/500mA, Low Noise, Micropower

LDO with Independent Inputs

VIN: 1.8V to 20V, VOUT(MIN) = 1.22V, VDO = 0.32V, IQ = 60μA, ISD < 1μA;

DFN and TSSOP-16E Packages

LT3080/

LT3080-1

1.1A, Parallelable, Low Noise LDO

VIN: 1.2V to 36V, VOUT: 0V to 35.7V, Low Noise < 40μVRMS, 300mV Dropout Voltage

(2-Supply Operation), Current-Based Reference with 1-Resistor VOUT Set, Directly

Parallelable (No Op Amp Required), Stable with Ceramic Capacitors;

TO-220, SOT-223, MS8E and 3mm

× 3mm DFN Packages

ThinSOT is a trademark of Linear Technology Corporation.

VOUT1

1.8V

500mA

VOUT2

1.5V

500mA

237k

10nF

3.3μF

113k

3029 TA02

OUT2

ADJ2

BYP2

GND

237k

10nF

3.3μF

54.9k

OUT1

ADJ1

BYP1

LT3029

LTC2923

IN1

VCC

3.3μF

SHDN1

IN2

SHDN2

SDO

FB2

GND

RAMP

GATE

FB1

TRACK1

RAMPBUF

TRACK2

2.5V

3.3V

3.3μF

63.4k

54.9k

90.9k

113k

0.1μF

3.3V

CGATE

0.1μF

OFF

Coincident Tracking Supply Application

10ms/DIV

VOUT1

VOUT2

500mV/DIV

3029 TA02b

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