ELECTRICAL CHARACTERISTICS (continued)

Note 1: Maximum positive supply voltage of 60V must be of limited duration (<100msec) and duty cycle ( 1%).

The maximum continuous supply voltage is 26V.

Note 2: Full Load current (I ) is defined as 1.5A for the GM66150 series.

FL

Note 3: Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with

V

+ 1V applied to V

OUT

IN

Note 4: V

= V

(nominal) + 1V. For example, use V = 4.3V for a 3.3V regulator or use 6V for a 5V regulator. Employ pulse-testing

IN

OUT

IN

procedures to minimize temperature rise.

Note 5: Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of the load current

plus the ground pin current.

Note 6: Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range.

Note 7: Thermal regulation is defined as the change in output voltage at a time T after a change in power dissipation is applied,

excluding load or line regulation effects. Specifications are for a 200mA load pulse at V

= 20V (a 4W pulse) for T = 10ms.

IN

Note 8: V

V

(V

-1V), 2.3V

V

26V, 10mA < I

I , T

T

.

REF

OUT

IN

IN

L

FL

J

J MAX

Note 9: Comparator thresholds are expressed in terms of a voltage differential at the Adjust terminal below the nominal reference

voltage measured at 6V input. To express these thresholds in terms of output voltage change, multiply by the error amplifier

gain = V

/ V

= (R1 + R2)/ R2. For example, at a programmed output voltage of 5V, the Error output is guaranteed to go

OUT

REF

low when the output drops by 95 mV x 5V/1.240 V = 384 mV. Thresholds remain constant as a percent of V

as V

is

OUT

OUT

varied, with the dropout warning occurring at typically 5% below nominal, 7.7% guaranteed.

Note 10: V

0.8V and V

26V, V

= 0.

EN

IN

OUT

Note 11: When used in dual supply systems where the regulator load is returned to a negative supply, the output voltage must be

diode clamped to ground.

7