2

LT1935

1935f

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Feedback Voltage

Measured at the FB Pin

●

1.240

1.265

1.280

V

Feedback Voltage Line Regulation

0.01

%/V

FB Pin Bias Current

●

12

60

nA

Undervoltage Lockout Threshold

2.1

2.3

V

Maximum Input Voltage

16

V

Switching Frequency

1

1.2

1.4

MHz

Maximum Duty Cycle

●

85

93

%

Switch Current Limit

(Note 3)

2

3.2

A

Switch Saturating Voltage

180

280

mV

Switch Leakage Current

●

0.01

1

µA

SHDN Pin Input Current

14

40

µA

0.1

µA

Operating Supply Current

3

mA

SHDN Supply Current

0.1

1

µA

SHDN Input High Voltage

1.8

V

SHDN Input Low Voltage

0.5

V

(Note 1)

SW Voltage ................................................ – 0.4V to 40V

FB Voltage ................................................................. 6V

Current Into FB Pin .............................................. ±1mA

SHDN Voltage ......................................................... 16V

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

Operating Ambient Temperature Range

(Note 2) .............................................. – 40°C to 85°C

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

Strict adherence to JDEC 020B solder attach and rework

for assemblies containing lead is recommended.

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

The

ORDER PART

NUMBER

LT1935ES5

S5 PART MARKING

LTRX

ELECTRICAL CHARACTERISTICS

PACKAGE/ORDER I FOR ATIO

ABSOLUTE

AXI U

RATI GS

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

of a device may be impaired.

Note 2: The LT1935ES5 is guaranteed to meet performance 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: Current limit guaranteed by design and/or correlation to static test.

SW 1

GND 2

TOP VIEW

S5 PACKAGE

5-LEAD PLASTIC TSOT-23

FB 3

4 SHDN