Unless otherwise specified: V

Symbol

Parameter

Condition

Min

Typ

Max

Units

Open Circuit Protection Section (V

V

OVP

Output Over-Voltage Protection

(Open Circuit)

Protection Activation Threshold

17.5

18.75

20.0

V

Protection Deactivation Threshold

17.0

18.25

19.5

V

Hysteresis

0.5

V

I

OVP

V

V

50

100

µA

V

0.03

µA

Input Voltage Section (V

V

IN, Low

Undervoltage Lockout (Low

Voltage Stop)

Lockout Deactivation Threshold

1.8

2.0

2.3

V

Lockout Activation Threshold

1.7

1.9

2.2

V

Hysteresis

0.1

V

I

IN, Off

Shutdown Supply Current

V

0.01

1

µA

I

IN, On

Quiescent Supply Current

V

0.2

0.5

0.8

mA

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

the device is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed performance limits and associated test conditions, see the

Electrical Characteristics tables.

Note 2: All voltages are with respect to the potential at the GND pin.

Note 3: For detailed soldering specifications and information, please consult the National Semiconductor Application Note titled: "Mounting of Surface Mount

Components".

Note 4: The Human body model is a 100pF capacitor discharged through a 1.5k

Ω resistor into each pin. (MIL-STD-883 3015.7) The machine model is a 200pF

capacitor discharged directly into each pin. (EAIJ)

Note 5: In applications where high power dissipation and/or poor package thermal resistance is present, the maximum ambient temperature may have to be

Note 6: Junction-to-ambient thermal resistance (

test board conforming to JEDEC standards. In applications where high maximum power dissipation exists, special care must be paid to thermal dissipation issues

when designing the board layout.

Note 7: Min and Max limits are guaranteed by design, test, or statistical analysis. Typical (Typ) numbers are not guaranteed, but do represent the most likely norm.

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