TPS70845, TPS70848, TPS70851, TPS70858, TPS70802

DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS

WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS

SLVS301B – JUNE 2000 – REVISED OCTOBER 2002

8

POST OFFICE BOX 655303

detailed description (continued)

– 0.3 V to 7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

– 0.3 V to 7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Voltage range at EN1, EN2

– 0.3 V to 7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.5 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.5 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maximum RESET, PG1, PG2 voltage

7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maximum MR voltage

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Peak output current

Internally limited

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous total power dissipation

See Dissipation Rating Tables

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

– 40

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

– 65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ESD rating, HBM

2 kV

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

‡ All voltages are tied to network ground.

DISSIPATION RATING TABLE

PACKAGE

AIR FLOW

(CFM)

TA ≤ 25°C

DERATING FACTOR

TA = 70°C

TA = 85°C

PWP§

0

3.067 W

30.67 mW/

°C

1.687 W

1.227 W

PWP§

250

4.115 W

41.15 mW/

°C

2.265 W

1.646 W

§ This parameter is measured with the recommended copper heat sink pattern on a 4-layer PCB, 1 oz. copper on 4-in

× 4-in

ground layer. For more information, refer to TI technical brief SLMA002.

recommended operating conditions

MIN

MAX

UNIT

Input voltage, VI†

2.7

6

V

Output current, IO (regulator 1)

0

250

mA

Output current, IO (regulator 2)

0

125

mA

Output voltage range (for adjustable option)

1.22

5.5

V

Operating virtual junction temperature, TJ

–40

125

°C

† To calculate the minimum input voltage for maximum output current, use the following equation: VI(min) = VO(max) + VDO(max load).