LTC1772B datasheet(2/16 Pages) LINER

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LTC1772B

1772bfa

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

Input Supply Voltage (VIN).........................– 0.3V to 10V

SENSE–, PGATE Voltages...............–0.3V to (VIN + 0.3V)

VFB, ITH/RUN Voltages............................... –0.3V to 2.4V

PGATE Peak Output Current (< 10µs) ........................ 1A

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

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

Junction Temperature (Note 3) ............................ 150°C

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

(Note 1)

ITH/RUN 1

GND 2

VFB 3

6 PGATE

5 VIN

4 SENSE–

TOP VIEW

S6 PACKAGE

6-LEAD PLASTIC TSOT-23

TJMAX = 150°C, θJA = 230°C/W

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC1772BES6#PBF

LTC1772BES6#TRPBF

LTVU

6-Lead Plastic TSOT Package

–40°C to 85°C

LTC1772BIS6#PBF

LTC1772BIS6#TRPBF

LTVU

6-Lead Plastic TSOT Package

–40°C to 85°C

LEAD BASED FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC1772BES6

LTC1772BES6#TR

LTVU

6-Lead Plastic TSOT Package

–40°C to 85°C

LTC1772BIS6

LTC1772BIS6#TR

LTVU

6-Lead Plastic TSOT Package

–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.

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

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Input DC Supply Current

Normal Operation

Shutdown

UVLO

Typicals at VIN = 4.2V (Note 4)

2.4V ≤ VIN ≤ 9.8V, PGATE Logic High

2.4V ≤ VIN ≤ 9.8V, VITH/RUN = 0V

VIN < UVLO Threshold

270

420

μA

Undervoltage Lockout Threshold

VIN Falling

VIN Rising

1.55

1.85

2.00

2.10

2.35

2.40

Shutdown Threshold (at ITH/RUN)

0.15

0.35

0.55

Start-Up Current Source

VITH/RUN = 0V

0.25

0.5

0.85

μA

Regulated Feedback Voltage

0°C to 70°C (Note 5)

–40°C to 85°C (Note 5)

0.780

0.770

0.800

0.820

0.830

Output Voltage Line Regulation

2.4V ≤ VIN ≤ 9.8V (Note 5)

0.05

mV/V

Output Voltage Load Regulation

ITH/RUN Sinking 5μA (Note 5)

ITH/RUN Sourcing 5μA (Note 5)

2.5

mV/μA

The

l denotes the speciﬁcations which apply over the full operating

temperature range, otherwise speciﬁcations are at TA = 25°C. VIN = 4.2V unless otherwise speciﬁed. (Note 2)

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