All Output Voltage Versions

Electrical Characteristics

Limits appearing in bold type face apply over the entire junction temperature range of operation, −40˚C to 125˚C. Specifica-

tions appearing in normal type apply for T

versions and V

Symbol

Parameter

Conditions

Typ

Min

Max

Units

DEVICE PARAMETERS

I

Q

Quiescent

Current

V

4.2

6

mA

For 3.3V, 5.0V, and ADJ Versions

V

For 12V Versions

I

STBY

Standby

Quiescent

Current

ON/OFF Pin = 0V

50

100/150

µA

I

CL

Current Limit

4.5

3.8/3.6

5.25/5.4

A

I

L

Output Leakage

Current

V

V

V

16

200

15

µA

mA

R

DS(ON)

Switch

On-Resistance

I

0.15

0.17/0.29

Ω

f

O

Oscillator

Frequency

Measured at Switch Pin

260

225

280

kHz

D

Duty Cycle

Maximum Duty Cycle

91

%

Minimum Duty Cycle

0

%

I

BIAS

Feedback Bias

Current

V

ADJ Version Only

85

nA

V

ON/OFF

ON/OFF

Threshold

Voltage

1.4

0.8

2.0

V

I

ON/OFF

ON/OFF Input

Current

ON/OFF Input = 0V

20

45

µA

F

SYNC

Synchronization

Frequency

V

400

KHz

V

SYNC

SYNC Threshold

Voltage

1.4

V

θ

JA

Thermal

Resistance

T Package, Junction to Ambient

65

(Note 5)

θ

JA

T Package, Junction to Ambient

45

(Note 6)

θ

JC

T Package, Junction to Case

2

θ

JA

S Package, Junction to Ambient

56

˚C/W

(Note 7)

θ

JA

S Package, Junction to Ambient

35

(Note 8)

θ

JA

S Package, Junction to Ambient

26

(Note 9)

θ

JC

S Package, Junction to Case

2

++

θ

JA

SD Package, Junction to Ambient

55

˚C/W

(Note 10)

θ

JA

SD Package, Junction to Ambient

29

(Note 11)

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