2

LT1617/LT1617-1

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

(Note 1)

SW Voltage .............................................................. 36V

NFB Voltage ............................................................. – 3V

Current into NFB Pin ............................................. –1mA

Junction Temperature ........................................... 125

°C

Operating Temperature Range (Note 2) .. – 40

°C to 85°C

Storage Temperature Range ................. – 65

°C to 150°C

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

°C

ORDER PART

NUMBER

LT1617ES5

LT1617ES5-1

Consult factory for Industrial and Military grade parts.

S5 PART MARKING

SW 1

GND 2

TOP VIEW

S5 PACKAGE

5-LEAD PLASTIC SOT-23

NFB 3

4 SHDN

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Minimum Input Voltage

LT1617-1

1.0

V

LT1617

1.2

V

Quiescent Current

Not Switching

20

30

µA

1

µA

FB Comparator Trip Point

q

–1.205

–1.23

–1.255

V

FB Comparator Hysteresis

8mV

Output Voltage Line Regulation

0.05

0.1

%/V

FB Pin Bias Current (Note 3)

q

1.3

2

2.7

µA

Switch Off Time

400

ns

85

120

mV

250

350

mV

Switch Current Limit

LT1617-1

75

100

125

mA

LT1617

300

350

400

mA

SHDN Pin Current

2

3

µA

8

12

µA

SHDN Input Voltage High

0.9

V

SHDN Input Voltage Low

0.25

V

Switch Leakage Current

0.01

5

µA

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

Note 2: The LT1617 and LT1617-1 are guaranteed to meet specifications

from 0

°C to 70°C. Specifications over the –40°C to 85°C operating

temperature range are assured by design, characterization and correlation

with statistical process controls.

Note 3: Bias current flows out of the NFB pin.

LTKF

LTKA