LTC1703CG datasheet(2/36 Pages) LINER

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LTC1703

1703fa

(Note 1)

Supply Voltage

VCC........................................................................................... 7V

BOOST

n ............................................................... 15V

BOOST

n – SWn .................................................... 7V

Input Voltage

n .......................................................... – 1V to 8V

VID

n ....................................................... – 0.3V to 7V

All Other Inputs ......................... – 0.3V to VCC + 0.3V

Peak Output Current < 10

µs

n, BGn ............................................................... 5A

Operating Temperature Range

LTC1703C .............................................. 0

°C to 85°C

LTC1703I ........................................... – 40

°C to 85°C

Storage Temperature Range ................. – 65

°C to 150°C

Lead Temperature (Soldering, 10 sec).................. 300

°C

ORDER PART

NUMBER

TJMAX = 125°C, θJA = 55°C/ W

LTC1703CG

LTC1703IG

TOP VIEW

G PACKAGE

28-LEAD PLASTIC SSOP

PVCC

BOOST1

BG1

TG1

SW1

IMAX1

FCB

RUN/SS1

COMP1

SGND

FB1

SENSE

VID0

VID1

IMAX2

BOOST2

BG2

TG2

SW2

PGND

FAULT

RUN/SS2

COMP2

FB2

VCC

VID4

VID3

VID2

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

Consult LTC Marketing for parts specified with wider operating temperature ranges.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Main Control Loop

VCC

VCC Supply Voltage

●

PVCC

PVCC Supply Voltage

(Note 2)

●

BVCC

BOOST Pin Voltage

VBOOST – VSW (Note 2)

●

2.7

ICC

VCC Supply Current

Test Circuit 1

●

2.2

RUN/SS1 = RUN/SS2 = 0V (Note 5)

●

100

µA

IPVCC

PVCC Supply Current

Test Circuit 1 (Note 4)

●

2.2

RUN/SS1 = RUN/SS2 = 0V (Note 5)

●

100

µA

IBOOST

BOOST Pin Current

Test Circuit 1 (Note 4)

●

1.3

RUN/SS1 = RUN/SS2 = 0V

●

0.1

µA

VFB

Feedback Voltage

Test Circuit 1, LTC1703C

●

0.792

0.800

0.808

Test Circuit 1, LTC1703I

●

0.790

0.800

0.810

∆VFB

Feedback Voltage Line Regulation

VCC = 3V to 7V

●

±0.005

±0.05

%/V

IFB

Feedback Current

FB2 Only (Note 8)

●

±0.001

±1

µA

∆VOUT

Output Voltage Load Regulation

(Note 6)

●

0.1

±0.2

VFCB

FCB Threshold

●

0.75

0.8

0.85

∆VFCB

FCB Feedback Hysteresis

IFCB

FCB Pin Current

●

±0.001

±1

µA

VRUN

RUN/SS Pin RUN Threshold

●

0.45

0.55

0.65

ISS

Soft Start Source Current

RUN/SS

n = 0V

– 1.5

– 3.5

– 5.5

µA

The

● denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C.

VCC = 5V unless otherwise specified. (Note 3)

ELECTRICAL CHARACTERISTICS

Order Options Tape and Reel: Add #TR

Lead Free: Add #PBF

Lead Free Tape and Reel: Add #TRPBF

Lead Free Part Marking: http://www.linear.com/leadfree/

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