LT3468/LT3468-1

2

34681i

SW Voltage ................................................ –0.4V to 50V

CHARGE Voltage ...................................................... 10V

DONE Voltage .......................................................... 10V

Current into DONE Pin ..........................................

±1mA

Maximum 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

S5 PART

MARKING

LTAEC

LTAGQ

LT3468ES5

LT3468ES5-1

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

(Note 1)

are for both the LT3468 and LT3468-1 unless otherwise noted.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Quiescent Current

Not Switching

5

8

mA

0

1

µA

Input Voltage Range

q

2.5

16

V

Switch Current Limit

LT3468 (Note 3)

1.1

1.2

1.3

A

LT3468-1

0.45

0.55

0.65

A

330

430

mV

150

200

mV

q

31

31.5

32

V

300ns Pulse Width

200

400

mV

DCM Comparator Trip Voltage

q

10

36

80

mV

CHARGE Pin Current

15

40

µA

0

0.1

µA

Switch Leakage Current

q

0.01

1

µA

CHARGE Input Voltage High

q

1V

CHARGE Input Voltage Low

q

0.3

V

DONE Output Signal High

100k

3

V

DONE Output Signal Low

33

µA into DONE Pin

100

200

mV

DONE Leakage Current

20

100

nA

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

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

of a device may be impaired.

Note 2: The LT3468E/LT3468E-1 are 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.

Note 3: Specifications are for static test. Current limit in actual application

will be slightly higher.

5 VIN

4 CHARGE

SW 1

TOP VIEW

S5 PACKAGE

5-LEAD PLASTIC SOT-23

GND 2

DONE 3