LTC3548 datasheet(2/16 Pages) LINER

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LTC3548

3548fa

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC3548EDD#PBF

LTC3548EDD#TRPBF

LBNJ

10-Lead (3mm × 3mm) Plastic DFN

–40°C to 85°C

LTC3548IDD#PBF

LTC3548IDD#TRPBF

LBNJ

10-Lead (3mm × 3mm) Plastic DFN

–40°C to 85°C

LTC3548EMSE#PBF

LTC3548EMSE#TRPBF

LTBNH

10-Lead Plastic MSOP

–40°C to 85°C

LTC3548IMSE#PBF

LTC3548IMSE#TRPBF

LTBNH

10-Lead Plastic MSOP

–40°C to 85°C

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

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/

VIN Voltages.................................................– 0.3V to 6V

VFB1, VFB2, RUN1, RUN2

Voltages....................................... –0.3V to VIN + 0.3V

MODE/SYNC Voltage........................ –0.3V to VIN + 0.3V

SW1, SW2 Voltage........................... –0.3V to VIN + 0.3V

POR Voltage................................................. –0.3V to 6V

(Note 1)

Ambient Operating Temperature

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

Junction Temperature (Note 5) ............................. 125°C

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

Lead Temperature (Soldering, 10 sec)

MSE only .......................................................... 300°C

ABSOLUTE MAXIMUM RATINGS

PIN CONFIGURATION

TOP VIEW

DD PACKAGE

10-LEAD (3mm × 3mm) PLASTIC DFN

DD PIN 11, EXPOSED PAD: PGND

MUST BE CONNECTED TO GND

VFB2

RUN2

POR

SW2

MODE/

SYNC

VFB1

RUN1

VIN

SW1

GND

TOP VIEW

VFB1

RUN1

VIN

SW1

GND

VFB2

RUN2

POR

SW2

MODE/

SYNC

MSE PACKAGE

10-LEAD PLASTIC MSOP

MSE PIN 11, EXPOSED PAD: PGND

MUST BE CONNECTED TO GND

TJMAX = 125°C, θJA = 45°C/W, θJC = 3°C/W

(Soldered to a 4-layer board)

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

(Soldered to a 4-layer board)

ORDER INFORMATION

ELECTRICAL CHARACTERISTICS The ● denotes the speciﬁcations which apply over the full operating

temperature range, otherwise speciﬁcations are at TA = 25°C. VIN = 3.6V, unless otherwise speciﬁed. (Note 2)

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VIN

Operating Voltage Range

2.5

5.5

IFB

Feedback Pin Input Current

VFB

Feedback Voltage (Note 3)

0°C ≤ TA ≤ 85°C

–40°C ≤ TA ≤ 85°C

0.588

0.585

0.6

0.612

ΔVLINE REG

Reference Voltage Line Regulation

VIN = 2.5V to 5.5V (Note 3)

0.3

0.5

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