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LTC2953

2953f

ELECTRICAL CHARACTERISTICS

ABSOLUTE MAXIMUM RATINGS

Supply Voltage (VIN) .................................. –0.3V to 33V

Input Voltages

⎯P⎯B, ⎯P⎯F⎯I, UVLO........................................... –6V to 33V

VM ......................................................... –0.3V to 20V

⎯K⎯I⎯L⎯L....................................................... –0.3V to 10V

PDT....................................................... –0.3V to 2.7V

Output Voltages

EN/

⎯E⎯N, ⎯P⎯F⎯O............................................ –0.3V to 50V

⎯R⎯S⎯T, ⎯I⎯N⎯T ................................................ –0.3V to 10V

Operating Temperature Range

LTC2953C ................................................ 0°C to 70°C

LTC2953I ............................................. –40°C to 85°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 = 2.7V to 27V, unless otherwise noted (Note 2).

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Supply Pin (VIN)

VIN

Supply Voltage Range

Steady State Operation

●

2.7

IIN

VIN Supply Current

VIN = 2.7V to 27V

●

μA

VUVL

VIN Undervoltage Lockout

VIN Falling

●

2.2

2.3

2.5

Push Button, Enable (⎯P⎯B, EN/⎯E⎯N)

VPB(MIN, MAX)

⎯P⎯B Operating Voltage Range

Single-Ended

●

–1

IPB

⎯P⎯B Input Current

2.5V < VPB < 27V

VPB = 1V

VPB = 0.6V

●

–1

–3

–6

–9

±1

–12

–15

μA

VPB(VTH)

⎯P⎯B Input Threshold

⎯P⎯B Falling

●

0.6

0.8

VPB(VOC)

⎯P⎯B Open Circuit Voltage

IPB = –1μA

●

1.6

PIN CONFIGURATION

TOP VIEW

DD PACKAGE

12-LEAD (3mm

´ 3mm) PLASTIC DFN

INT

EN/EN

RST

PFO

PFI

UVLO

GND

KILL

PDT

VIN 6

TJMAX = 125°C, θJA = 43°C/W

EXPOSED PAD (PIN 13) PCB GROUND CONNECTION OPTIONAL

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC2953CDD-1#PBF

LTC2953CDD-2#PBF

LTC2953IDD-1#PBF

LTC2953IDD-2#PBF

LTC2953CDD-1#TRPBF

LTC2953CDD-2#TRPBF

LTC2953IDD-1#TRPBF

LTC2953IDD-2#TRPBF

LCWT

LCQT

LCWT

LCQT

12-Lead (3mm

× 3mm) Plastic DFN

12-Lead (3mm

× 3mm) Plastic DFN

12-Lead (3mm

× 3mm) Plastic DFN

12-Lead (3mm

× 3mm) Plastic DFN

0°C to 70°C

–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/

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