2

LT1932

1932f

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Minimum Input Voltage

1V

Quiescent Current

1.2

1.6

mA

0.1

1.0

µA

100

mV

LED Pin Voltage

120

180

mV

LED Pin Current

33

38

45

mA

25

30

36

mA

12.5

15

17.5

mA

5

mA

LED Pin Current Temperature Coefficient

– 0.02

mA/

°C

Switching Frequency

0.8

1.2

1.6

MHz

Maximum Switch Duty Cycle

q

90

95

%

Switch Current Limit

400

550

780

mA

150

200

mV

SHDN Pin Current

0

0.1

µA

15

30

µA

Start-Up Threshold (SHDN Pin)

0.85

V

Shutdown Threshold (SHDN Pin)

0.25

V

Switch Leakage Current

0.01

5

µA

(Note 1)

SHDN Voltage ......................................................... 10V

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

LED Voltage ............................................................. 36V

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

LT1932ES6

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

ELECTRICAL CHARACTERISTICS

S6 PART MARKING

LTST

SW 1

GND 2

LED 3

5 SHDN

TOP VIEW

S6 PACKAGE

6-LEAD PLASTIC SOT-23

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

a device may be impaired.

Note 2: The LT1932E is 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.

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