LTC1705 datasheet(2/28 Pages) LINER

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LTC1705

Supply Voltage

VCC, PVCC, VINCLK .................................................. 6V

BOOSTC, BOOSTIO ............................................. 12V

BOOSTC – SWC, BOOSTIO – SWIO ....................... 6V

Input Voltage

SWC, SWIO ................................................ –1V to 6V

SENSEC, FBC, FBIO, VID

n ....... – 0.3V to (VCC + 0.3V)

PGOOD, RUN/SS,

IMAXC, IMAXIO .................................. –0.3V to (VCC + 0.3V)

Peak Output Current <10

µs

TGC, BGC .............................................................. 5A

TGIO, BGIO ....................................................... 1.25A

Operating Temperature Range (Note 2) .. – 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 = 80°C/W

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

LTC1705EGN

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

ELECTRICAL CHARACTERISTICS

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

VCC = PVCC = BOOST = 5V, VINCLK = 3.3V unless otherwise specified. (Note 3)

TOP VIEW

GN PACKAGE

28-LEAD PLASTIC SSOP

IMAXIO

PVCC

BOOSTC

BGC

TGC

SWC

PGND

IMAXC

RUN/SS

COMPC

FBC

GND

SENSEC

VID0

BGIO

BOOSTIO

TGIO

SWIO

VINCLK

VOUTCLK

PGOOD

COMPIO

FBIO

VCC

VID4

VID3

VID2

VID1

(Note 1)

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VCC

VCC Supply Voltage

3.15

5.5

PVCC

PVCC Supply Voltage

(Note 4)

3.15

5.5

BVCC

BOOST Pin Voltage

VBOOST – VSW (Note 4)

3.15

5.5

VINCLK

VINCLK Supply Voltage

3.3

5.5

IVCC

VCC Supply Current

Test Circuit 1

4.5

RUN/SS = 0V

100

µA

IPVCC

PVCC Supply Current

VSENSEC = VFBIO = 0V, No Load at Drivers (Note 5) q

RUN/SS = 0V (Note 6)

150

µA

IBOOST

IBOOSTC + IBOOSTIO

VSENSEC = VFBIO = 0V, No Load at Drivers (Note 5) q

RUN/SS = 0V (Note 6)

150

µA

IVINCLK

VINCLK Supply Current

IVOUTCLK = 0mA

1.5

RUN/SS = 0V

430

µA

VSHDN

RUN/SS Shutdown Threshold

VRUN/SS ↑ (Rising Edge)

0.2

0.5

ISS

RUN/SS Source Current

RUN/SS = 0V

– 3

µA

Core, I/O Supply Control Loops

VSENSEC Output Voltage Accuracy

Programmed from 0.9V to 2V

–1.25

1.25

VFBC

Core Feedback Voltage

(Note 10)

0.800

VFBIO

I/O Feedback Voltage

0.784

0.800

0.816

dVFB

Feedback Voltage Line Regulation

VCC = 3.3V to 5.5V

±0.01

±0.1

%/V

dVOUT

Output Voltage Load Regulation

(Note 7)

–0.2

–0.1

IFBIO

I/O Feedback Input Current

±1

µA

LTC1705 Datasheet(PDF) 2 Page - Linear Technology

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