Note 12: The shutdown input equivalent circuit is the base of a grounded-emitter NPN transistor in series with a current-limiting resistor. Pulling the shutdown input

high turns off the main regulator. For more details, see Application Hints.

output current will be higher at higher output voltages.

Note 14: This test is performed with the auxiliary comparator output sinking 400 µA of current. At the upper trip point, the comparator output must be

≥2.4V. At the

low trip point, the comparator output must be

≤ 0.4V.

Note 15: Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of the ground pin current, output load current, and

current through the external resistive dividers (if used).

Note 16: All pins are rated for 2 kV, except for the auxiliary feedback pin which is rated for 1.2 kV (human body model, 100 pF discharged through 1.5 k

Ω).

put) and 10 µF (Auxiliary Output), Feedback is tied to 5V Tap pin, C

Sense pin, Auxiliary Output is programmed for 5V. The main regulator output hasa1mA load, the auxiliary output has a

100 µA load.

Ground Pin Current

DS011339-18

Ground Pin Current

DS011339-19

Ground Pin Current

DS011339-20

Ground Pin Current

DS011339-21

Ground Pin Current

DS011339-22

Ground Pin Current

DS011339-23

Ground Pin Current

vs Main Load

DS011339-24

Dropout Characteristics

(Main Regulator)

DS011339-25

Dropout Voltage vs

Temperature (Main Regulator)

DS011339-26

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