LT3482IUD datasheet(2/12 Pages) LINER

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LT3482

3482fa

Input Voltage (VIN)....................................................16V

VOUT1, SW Voltage....................................................48V

VOUT2, PUMP, MONIN, APD Voltage..........................90V

FB Voltage...................................................................5V

SHDN, fSET, CTRL Voltage.........................................16V

MON Voltage.............................................................12V

Operating Temperature Range

(Note 2).................................................... –40°C to 85°C

Maximum Junction Temperature .......................... 125°C

Storage Temperature Range................... –65°C to 125°C

(Note 1)

The

● denotes the speciﬁcations which apply over the full operating

temperature range, otherwise speciﬁcations are at TA = 25°C. VIN = 3V, V⎯S⎯H⎯D⎯N = 3V unless otherwise noted.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Minimum Operating Voltage

2.5

Maximum Operating Voltage

Feedback Voltage

CTRL = 1.5V

●

1.215

1.200

1.235

1.255

1.260

Feedback Line Regulation

0.025

0.07

%/V

FB Pin Bias Current

●

100

Supply Current

FB = 1.3V, Not Switching

V⎯S⎯H⎯D⎯N = 0

3.3

0.1

4.0

0.5

µA

Switching Frequency

fSET = 0V

fSET = 2V

580

1.0

650

1.1

750

1.3

kHz

MHz

Maximum Duty Cycle

fSET = 0V

Switch Current Limit

280

360

420

Switch VCESAT

ISW = 150mA

130

220

Switch Leakage Current

SW = 5V

µA

Schottky Forward Voltage

ISCHOTTKY = 150mA

880

Schottky Reverse Leakage

VOUT1 – SW = 50V

µA

SHDN Voltage High

1.5

ELECTRICAL CHARACTERISTICS

ABSOLUTE

AXI U

RATI GS

16 15 14 13

TOP VIEW

UD PACKAGE

16-LEAD (3mm

× 3mm) PLASTIC QFN

APD

MONIN

VOUT2

SHDN

VIN

GND

TJMAX = 125°C, θJA = 68°C/W, θJC = 4.2°C/W

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

PIN CONFIGURATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LT3482EUD#PBF

LT3482IUD#PBF

LT3482EUD#TRPBF

LT3482IUD#TRPBF

LCFG

16-Lead (3mm × 3mm) Plastic QFN

0°C to 85°C

–40°C to 125°C

Consult LTC Marketing for parts speciﬁed with wider operating temperature ranges. *The temperature grade is identiﬁed by a label on the shipping container.

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

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

ORDER INFORMATION

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