LTC3527-1 datasheet(2/20 Pages) LINER

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LTC3527/LTC3527-1

35271f

LEAD FREE FINISH

TAPE AND REEL

PART MARKING

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC3527EUD#PBF

LTC3527EUD-1#PBF

LTC3527EUD#TRPBF

LTC3527EUD-1#TRPBF

LDDK

LCXP

16-Lead (3mm × 3mm) Plastic QFN

–40°C to 85°C

LEAD BASED FINISH

TAPE AND REEL

PART MARKING

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC3527EUD

LTC3527EUD-1

LTC3527EUD#TR

LTC3527EUD-1#TR

LDDK

LCXP

16-Lead (3mm × 3mm) Plastic QFN

–40°C to 85°C

Consult LTC Marketing for parts speciﬁed with wider operating temperature ranges.

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/

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

VIN, VIN1, VIN2 Voltage .................................–0.3V to 6V

SW1, SW2 Voltage (DC) .............................. – 0.3V to 6V

(Pulsed < 100ns) ..................................... – 0.3V to 7V

⎯S⎯H⎯D⎯N⎯1, ⎯S⎯H⎯D⎯N⎯2, FB1, FB2 Voltage............... –0.3V to 6V

VOUT1, VOUT2................................................–0.3V to 6V

MODE, FSEL, PGOOD1, PGOOD2................. – 0.3V to 6V

Operating Temperature (Notes 2, 5).........–40°C to 85°C

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

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

(Note 1)

15 14 13

TOP VIEW

UD PACKAGE

16-LEAD (3mm

× 3mm) PLASTIC QFN

SHDN1

FB1

MODE

VIN1

SHDN2

FB2

FSEL

VIN2

TJMAX = 125°C, θJA = 68°C/W

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

ORDER INFORMATION

ELECTRICAL CHARACTERISTICS

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Minimum Start-Up Voltage

ILOAD = 1mA

0.7

0.88

Output Voltage Adjust Range

VOUT1

VOUT1, 0°C to 85°C

VOUT2

VOUT2, 0°C to 85°C

●

1.7

1.6

1.7

1.6

5.25

Feedback Voltage FB1, FB2

●

1.176

1.20

1.224

Feedback Input Current FB1, FB2

VFB1,2 = 1.20V

Quiescent Current: Shutdown

V⎯S⎯H⎯D⎯N⎯1 = V⎯S⎯H⎯D⎯N⎯2 = 0V, Not Including Switch

Leakage, VOUT1 = VOUT2 = 0V

0.1

µA

Quiescent Current: Burst Mode Operation

Measured on VOUT, VFB1 = VFB2 = 1.5V

µA

Quiescent Current: Active

VFB1 = VFB2 > 1.2V (Note 3)

500

900

µA

NMOS Switch Leakage Current

VSW1,2 = 5V, ⎯S⎯H⎯D⎯N⎯1,⎯2 = 0V

0.1

µA

PMOS Switch Leakage Current

VSW1,2 = 5V, VOUT1,2 = 0V, ⎯S⎯H⎯D⎯N⎯1,⎯2 = 0V

0.1

µA

The ● denotes the speciﬁcations which apply over the full operating

temperature range, –40°C to 85°C. VIN = 1.2V, VOUT1 = VOUT2 = 3.3V, TA = 25°C, unless otherwise noted.

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