LTC4350IGN datasheet(2/18 Pages) LINER

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LTC4350

4350fb

pin conFiguraTion

absoluTe MaxiMuM raTings

Supply Voltage (VCC) ................................................17V

Input Voltage

TIMER................................................... –0.3V to 1.2V

R+, R– (Note 2) ...................................... –0.3V to 17V

FB ......................................................... –0.3V to 5.3V

OV, UV ....................................................... –0.3V to 17V

Output Voltage

COMP1 .................................................... –0.3V to 6V

COMP2 .................................................... –0.3V to 3V

GAIN, SB............................................... –0.3V to 5.6V

GATE (Note 3) ............................................ –0.3V to 20V

IOUT, STATUS ............................................. –0.3V to 17V

RSET............................................................. –0.3V to 1V

Operating Temperature Range

LTC4350C................................................ 0°C to 70°C

LTC4350I.............................................–40°C to 85°C

Storage Temperature Range .................. –65°C to 150°C

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

(Note 1)

GN PACKAGE

16-LEAD PLASTIC SSOP

TOP VIEW

TIMER

GAIN

COMP2

COMP1

GND

VCC

STATUS

GATE

R+

R–

IOUT

RSET

TJMAX = 150°C, θJA = 135°C/W

orDer inForMaTion

LEAD FREE FINISH

TAPE AND REEL

PART MARKING

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC4350CGN#PBF

LTC4350CGN#TRPBF

4350

16-Lead Plastic SSOP

0°C to 70°C

LTC4350IGN#PBF

LTC4350IGN#TRPBF

4350I

16-Lead Plastic SSOP

–40°C to 85°C

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

Consult LTC Marketing for information on non-standard lead based finish parts.

For more information on lead free part marking, go to: http://www.linear.com/leadfree/

For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/

elecTrical characTerisTics

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

DC Characteristics

ICC

VCC Supply Current

UV = VCC

1.0

1.6

2.0

VLKOH

VCC Undervoltage Lockout High

2.36

2.45

2.52

VLKOL

VCC Undervoltage Lockout Low

2.24

2.34

2.44

VFB

FB Pin Voltage

0°C to 85°C (LTC4350I) or 0°C to 70°C (LTC4350C)

–40°C to 85°C (LTC4350I)

1.208

1.196

1.220

1.236

1.244

VFBLIR

FB Line Regulation

VCC = 3.3V to 12V, COMP1 = 1.240V

0.02

0.05

%/V

VFBLOR

FB Load Regulation

COMP1 = 2V

COMP1 = 0.64V

–0.0008

0.003

–0.1

0.1

The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VCC = 5V unless otherwise noted.

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