2

LT1614

A

G

A

U

A

R

BSOLUTEXI

TI

S

SW Voltage ............................................... – 0.4V to 30V

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

LBI Voltage ............................................ 0V

Current into FB Pin ..............................................

±1mA

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

°C

Operating Temperature Range

LT1614C ................................................. 0

°C to 70°C

LT1614I ............................................. – 40

°C to 85°C

Extended Commercial

Temperature Range (Note 2) .................. – 40

°C to 85°C

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

°C to 150°C

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

°C

ELECTRICAL C

C

HARA TERISTICS

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Quiescent Current

12

mA

5

10

µA

Feedback Voltage

q

– 1.21

– 1.24

– 1.27

V

NFB Pin Bias Current (Note 3)

q

– 2.5

– 4.5

– 7

µA

Reference Line Regulation

1V

0.6

1.1

%/V

2V

0.3

0.8

%/V

Minimum Input Voltage

0.92

1

V

Maximum Input Voltage

q

6V

Error Amp Transconductance

∆I = 5µA16

µmhos

Error Amp Voltage Gain

100

V/V

Switching Frequency

q

500

600

750

kHz

Maximum Duty Cycle

73

80

%

q

70

80

%

Switch Current Limit (Note 4)

0.75

1.2

A

PACKAGE/ORDER I FOR ATIO

Consult factory for Military grade parts.

ORDER PART

NUMBER

LT1614CS8

LT1614IS8

S8 PART MARKING

1614

1614I

ORDER PART

NUMBER

LT1614CMS8

LT1614IMS8

MS8 PART MARKING

LTID

LTJB

1

2

3

4

NFB

SHDN

GND

8

7

6

5

LBO

LBI

SW

TOP VIEW

MS8 PACKAGE

8-LEAD PLASTIC MSOP

1

2

3

4

8

7

6

5

TOP VIEW

LBO

LBI

SW

NFB

SHDN

GND

S8 PACKAGE

8-LEAD PLASTIC SO

otherwise noted.

(Note 1)