TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q

LOW-DROPOUT VOLTAGE REGULATORS

WITH INTEGRATED DELAYED RESET FUNCTION

SLVS124F – JUNE 1995 – REVISED JANUARY 1999

6

POST OFFICE BOX 655303

recommended operating conditions

MIN

MAX

UNIT

†

TPS7301Q

2.47

10

V

†

TPS7325Q

3.1

10

V

Input voltage VI†

TPS7330Q

3.5

10

V

Input voltage, VI†

TPS7333Q

3.77

10

TPS7348Q

5.2

10

V

TPS7350Q

5.33

10

High-level input voltage at EN, VIH

2

V

Low-level input voltage at EN, VIL

0.5

V

Output current range, IO

0

500

mA

Operating virtual junction temperature range, TJ

–40

125

°C

† Minimum input voltage defined in the recommended operating conditions is the maximum specified output voltage plus dropout voltage, VDO,

at the maximum specified load range. Since dropout voltage is a function of output current, the usable range can be extended for lighter loads.

To calculate the minimum input voltage for the maximum load current used in a given application, use the following equation:

V

I(min) +

V

O(max) )

V

DO(max load)

Because the TPS7301 is programmable, rDS(on)shouldbeusedtocalculateVDObeforeapplyingtheaboveequation.Theequationforcalculating

VDO from rDS(on) is given in Note 2 in the TPS7301 electrical characteristics table. The minimum value of 2.97 V is the absolute lower limit for

the recommended input voltage range for the TPS7301.