LTC3526/LTC3526B



3526bfd

SW Voltage

DC............................................................ –0.3V to 6V

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

SHDN, FB Voltage ........................................ –0.3V to 6V

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

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

(Note 1)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Minimum Start-Up Input Voltage

0.85

1

V

Output Voltage Adjust Range

0°C to 85°C

l

1.7

1.6

5.25

5.25

V

V

Feedback Pin Voltage

l

1.165

1.195

1.225

V

Feedback Pin Input Current

1

50

nA

Quiescent Current—Shutdown

0.01

1

µA

Quiescent Current—Active

250

500

µA

Quiescent Current—Burst

9

18

µA

N-Channel MOSFET Switch Leakage Current

0.1

5

µA

P-Channel MOSFET Switch Leakage Current

0.1

10

µA

N-Channel MOSFET Switch On Resistance

0.4

Ω

P-Channel MOSFET Switch On Resistance

0.6

Ω

N-Channel MOSFET Current Limit

l

500

700

mA

Current Limit Delay to Output

(Note 3)

60

ns

Maximum Duty Cycle

l

85

90

%

Minimum Duty Cycle

l

0

%

Switching Frequency

l

0.7

1

1.3

MHz

SHDN Pin Input High Voltage

0.9

V

SHDN Pin Input Low Voltage

0.3

V

SHDN Pin Input Current

0.3

1

1

2

µA

µA

TOP VIEW

FB

SHDN

SW

GND

DC PACKAGE

6-LEAD (2mm × 2mm) PLASTIC DFN

7

1

2

3

6

5

4

EXPOSED PAD (PIN 7) IS GND, MUST BE SOLDERED TO PC BOARD

orDer inFormaTion

LEAD FREE FINISH

TAPE AND REEL

PART MARKING

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC3526EDC#PBF

LTC3526EDC#TRPBF

LCHW

6-Lead (2mm

× 2mm) Plastic DFN

–40°C to 85°C

LTC3526BEDC#PBF

LTC3526BEDC#TRPBF

LCNN

6-Lead (2mm

× 2mm) Plastic DFN

–40°C to 85°C

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

Consult LTC Marketing for information on non-standard lead based finish parts.

pin conFiguraTion

absoluTe maximum raTings

elecTrical characTerisTics