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LTC3419

3419f

ELECTRICAL CHARACTERISTICS

ABSOLUTE MAXIMUM RATINGS

Input Supply Voltage (VIN)............................. –0.3 to 6V

VFB1, VFB2 ........................................ –0.3V to VIN + 0.3V

RUN1, RUN2, MODE........................ –0.3V to VIN + 0.3V

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

P-Channel SW Source Current (DC) (Note 2).......800mA

N-Channel SW Source Current (DC) (Note 2) ......800mA

(Note 1)

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VIN

VIN Operating Voltage

●

2.5

5.5

VUV

VIN Undervoltage Lockout

VIN Low to High

●

2.1

2.5

IFB

Feedback Pin Input Current

LTC3419

LTC3419-1

●

±30

μA

VFBREG1

Regulated Feedback Voltage (Channel 1) LTC3419, 0°C < TA < 85°C

LTC3419, –40°C < TA < 85°C

LTC3419-1, –40°C < TA < 85°C

●

0.590

0.588

1.544

0.600

1.575

0.610

0.612

1.606

VFBREG2

Regulated Feedback Voltage (Channel 2) LTC3419, 0°C < TA < 85°C

LTC3419, –40°C < TA < 85°C

LTC3419-1, –40°C < TA < 85°C

●

0.590

0.588

1.764

0.600

1.8

0.610

0.612

1.836

ΔVLINE REG

Reference Voltage Line Regulation

VIN = 2.5V to 5.5V (Note 7)

0.3

0.5

%/V

TOP VIEW

DD PACKAGE

8-LEAD (3mm

× 3mm) PLASTIC DFN

VFB1

RUN1

MODE

SW1

VFB2

RUN2

SW2

VIN

TJMAX = 125°C, θJA = 40°C/W

EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB

VFB1

RUN1

MODE

SW1

GND

VFB2

RUN2

SW2

VIN

GND

TOP VIEW

MS PACKAGE

10-LEAD PLASTIC MSOP

TJMAX = 125°C, θJA = 120°C/W

ORDER PART NUMBER

DD PART MARKING

ORDER PART NUMBER

MS PART MARKING

LTC3419EDD

LTC3419EDD-1

LCQJ

LCWW

LTC3419EMS

LTC3419EMS-1

LTCQK

LTCWX

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 TA = 25°C, VIN = 3.6V, unless otherwise noted.

Peak SW Source and Sink Current (Note 2) .............1.3A

Operating Temperature Range (Note 3) .......–40 to 85°C

Junction Temperature (Note 6) ............................. 125°C

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

Lead Temperature (Soldering, 10 sec)

MSOP Package ................................................. 300°C

PACKAGE/ORDER INFORMATION

LTC3419 Datasheet(PDF) 2 Page - Linear Technology

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