LT3430EFE datasheet(2/28 Pages) LINER

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LT3430/LT3430-1

34301fa

PACKAGE/ORDER INFORMATION

ELECTRICAL CHARACTERISTICS

ABSOLUTE MAXIMUM RATINGS

Input Voltage (VIN) .................................................. 60V

BOOST Pin Above SW (Note 11).............................. 35V

BOOST Pin Voltage ................................................. 68V

SYNC Voltage............................................................. 7V

⎯S⎯H⎯D⎯N Voltage ............................................................ 6V

BIAS Pin Voltage ..................................................... 30V

FB Pin Voltage/Current .................................. 3.5V/2mA

Operating Junction Temperature Range

LT3430EFE (Notes 8, 10) .................. –40°C to 125°C

LT3430IFE (Notes 8, 10) .................. –40°C to 125°C

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

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

(Note 1)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Reference Voltage (VREF)VOL + 0.2 ≤ VC ≤ VOH – 0.2

5.5V ≤ VIN ≤ 60V

●

1.204

1.195

1.219

1.234

1.243

FB Input Bias Current

●

–0.2

–1.5

µA

Error Amp Voltage Gain

(Note 2)

200

400

V/V

Error Amp gm

dl (VC) = ±10µA

●

1650

1000

2200

3300

4200

µMho

VC to Switch gm

3.4

A/V

EA Source Current

FB = 1V

●

125

225

450

µA

EA Sink Current

FB = 1.4V

●

100

225

500

µA

VC Switching Threshold

Duty Cycle = 0

0.9

VC High Clamp

⎯S⎯H⎯D⎯N = 1V

2.1

Switch Current Limit

VC Open, Boost = VIN + 5V, FB = 1V

–40°C ≤ TJ ≤ 25°C

TJ = 125°C (Note 9)

2.5

6.5

5.5

Switch On Resistance

ISW = 2.5A, Boost = VIN + 5V (Note 7)

0.1

0.14

0.18

Maximum Switch Duty Cycle (LT3430)

FB = 1V

●

FE PACKAGE

16-LEAD PLASTIC TSSOP

TOP VIEW

GND

VIN

BOOST

GND

SHDN

SYNC

BIAS

GND

TJMAX = 125°C, θJA = 45°C/W, θJC = 10°C/W

EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB

ORDER PART NUMBER

FE PART MARKING

LT3430EFE

LT3430IFE

LT3430EFE-1

LT3430IFE-1

3430EFE

3430IFE

3430EFE-1

3430IFE-1

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/

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

The ● denotes the speciﬁcations which apply over the full operating

temperature range, otherwise speciﬁcations are at TJ = 25°C. VIN = 15V, VC = 1.5V, ⎯S⎯H⎯D⎯N = 1V, BOOST = Open Circuit,

SW = Open Circuit, unless otherwise noted.

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