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.

Specifications appearing in normal type apply for T

Adjustable 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

7

6.1/5.75

8.3/8.75

A

I

L

Output

Leakage

Current

V

V

V

1

6

200

15

µA

mA

R

DS(ON)

Switch

On-Resistance

I

0.12

0.14/0.225

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

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

++

Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings indicate conditions under which of the device is

guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed performance limits and associated test condition, see the electrical Char-

acteristics tables.

Note 2: ESD was applied using the human-body model, a 100pF capacitor discharged through a 1.5 k

Ω resistor into each pin.

Note 4: All limits are guaranteed at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature limits are 100%

ods. All limits are used to calculate Average Outgoing Quality Level (AOQL).

board with minimum copper area.

containing approximately 4 square inches of (1 oz.) copper area surrounding the leads.

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