LT3507IUHF datasheet(28/28 Pages) LINEAR

部件名	LT3507IUHF

功能描述	Triple Monolithic Step-Down Regulator with LDO

Download	28 Pages

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制造商	LINEAR [Linear Integrated Systems]

网页	http://www.linearsystems.com

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28 / 28 page

LT3507

28

3507fa

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

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

LT 0509 REV A • PRINTED IN USA

TYPICAL APPLICATIONS

PART NUMBER DESCRIPTION

COMMENTS

LT1939

25V, 2A, 2.5MHz High Efﬁciency DC/DC Converter and LDO Controller

VIN(MIN) = 3.6V, VIN(MAX) = 25V, VOUT(MIN) = 0.8V,

IQ = 2.5mA, ISD < 10μA, 3 × 3 DFN-10 Package

LT1940

Dual 25V, 1.4A (IOUT), 1.1MHz, High Efﬁciency Step-Down DC/DC

Converter

VIN(MIN) = 3.3V, VIN(MAX) = 25V, VOUT(MIN) = 1.20V,

IQ = 3.8mA, ISD < 30μA, TSSOP16E Package

LT3480

36V with Transient Protection to 60V, 2A (IOUT), 2.4MHz, High Efﬁciency

Step-Down DC/DC Converter with Burst Mode Operation

VIN(MIN) = 3.6V, VIN(MAX) = 38V, VOUT(MIN) = 0.78V,

IQ = 70μA, ISD < 1μA, 3 × 3 DFN-10, MSOP-10E Package

LT3481

34V with Transient Protection to 36V, 2A (IOUT), 2.8MHz, High Efﬁciency

Step-Down DC/DC Converter with Burst Mode Operation

VIN(MIN) = 3.6V, VIN(MAX) = 34V, VOUT(MIN) = 1.26V,

IQ = 50μA, ISD < 1μA, 3 × 3 DFN-10, MSOP-10E Package

LT3493

36V, 1.4A (IOUT), 750kHz High Efﬁciency Step-Down DC/DC Converter

VIN(MIN) = 3.6V, VIN(MAX) = 36V, VOUT(MIN) = 0.8V,

IQ = 1.9mA, ISD < 1μA, 2 × 3 DFN-6 Package

LT3500

36V, 40Vmax, 2A, 2.5MHz High Efﬁciency DC/DC Converter and LDO

Controller

VIN(MIN) = 3.6V, VIN(MAX) = 36V, VOUT(MIN) = 0.8V,

IQ = 2.5mA, ISD < 10μA, 3 × 3 DFN-10 Package

LT3501/10

25V, Dual 3A/2A (IOUT), 1.5MHz High Efﬁciency Step-Down DC/DC

Converter

VIN(MIN) = 3.3V, VIN(MAX) = 25V, VOUT(MIN) = 0.8V,

IQ = 3.7mA, ISD = 10μA, TSSOP-20E Package

LT3505

36V with Transient Protection to 40V, 1.4A (IOUT), 3MHz, High Efﬁciency

Step-Down DC/DC Converter

VIN(MIN) = 3.6V, VIN(MAX) = 34V, VOUT(MIN) = 0.78V,

IQ = 2mA, ISD = 2μA, 3 × 3 DFN-8, MSOP-8E Package

LT3506/A

25V, Dual 1.6A (IOUT), 575kHz/1.1MHz High Efﬁciency Step-Down DC/DC

Converter

VIN(MIN) = 3.6V, VIN(MAX) = 25V, VOUT(MIN) = 0.8V,

IQ = 3.8mA, ISD = 30μA, TSSOP-16E, 5 × 4 DFN-16 Package

LT3508

36V with Transient Protection to 40V, Dual 1.4A (IOUT), 3MHz, High

Efﬁciency Step-Down DC/DC Converter

VIN(MIN) = 3.7V, VIN(MAX) = 37V, VOUT(MIN) = 0.8V,

IQ = 4.6mA, ISD = 1μA, 4 × 4 QFN-24, TSSOP-16E Package

LT3684

34V with Transient Protection to 36V, 2A (IOUT), 2.8MHz, High Efﬁciency

Step-Down DC/DC Converter

VIN(MIN) = 3.6V, VIN(MAX) = 34V, VOUT(MIN) = 1.26V,

IQ = 850μA, ISD < 1μA, 3 × 3 DFN-10, MSOP-10E Package

LT3685

36V with Transient Protection to 60V, 2A (IOUT), 2.4MHz, High Efﬁciency

Step-Down DC/DC Converter

VIN(MIN) = 3.6V, VIN(MAX) = 38V, VOUT(MIN) = 0.78V,

IQ = 70μA, ISD < 1μA, 3 × 3 DFN-10, MSOP-10E Package

ThinSOT is a trademark of Linear Technology Corporation. Burst Mode is a registered trademark of Linear Technology Corporation.

12V to 5V, 3.3V, 1.8V and 1.6V with 1.5mm Maximum Height

RELATED PARTS

VIN1

BOOST1

UVLO

OVLO

BOOST3

SW3

FB3

VC3

TRK/SS3

BIAS

DRIVE

FB4

PGOOD1

PGOOD2

PGOOD3

PGOOD1

PGOOD2

PGOOD3

SW1

FB1

VC1

TRK/SS1

BOOST2

0.1μF

10μF

33μF

D1

13.3k

1000pF

1.5nF

22.6k

L1 2μH

VOUT1

1.8V

2A

VIN

8V TO 16V

VOUT2

3.3V

1.5A

D1: DIODES, INC. DFLS220L

D2, D3: DIODES, INC. DFLS120L

L1: COOPER SD14-2R0-R

L2, L3: COOPER SD14-4R5-R

Q1: ON SEMI NSS30071MR6T1G

L2 4.5μH

L3 4.5μH

VIN2 VIN3 VINSW

49.9k

4.02k

OVLO = 17V

UVLO = 7V

100k

11.3k

VOUT1

VOUT2

18.2k

SW2

FB2

VC2

TRK/SS2

RT/SYNC

TRK/SS4

GND

LT3507

RUN1

RUN2

RUN3

0.1μF

10μF

D2

D3

7.32k

11.3k

SHDN

2000pF

1200pF

1.5nF

41.2k

11.8k

VOUT2

VOUT1

20.0k

3507 TA03

31.6k

fSW = 1.25MHz

2.2nF

13.3k

100k

VOUT3

5V

1.4A

VOUT4

1.6V

0.2A

22μF

10μF

61.9k

Q1

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