TPPM0111

DUAL LOW-DROPOUT LINEAR REGULATOR

SLVS414 – DECEMBER 2001

4

POST OFFICE BOX 655303

The operating ratings specified below is interpreted as conditions that do not degrade the device’s parametric

or functional specifications for the life of the product.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

V(5VCC)

Input voltage

4.7

5

5.3

V

I(Q)

Quiescent supply current

IO(3.3VOUT) = 1.2 A and

IO(1.5VOUT) = 300 mA

1

mA

I(Q)

Quiescent su

ly current

With no loads on outputs

600

µA

I

Output load current

3.3VOUT = 3.3 V

±3%

1.5

A

IO

Output load current

1.5VOUT = 1.5 V

±2%

300

mA

V(3.3VOUT)

3.3-V output

IO = 1 mA to 1.2 A

3.23

3.33

3.43

V

V(1.5VOUT)

1.5-V output

IO = 1 mA to 250 mA

1.47

1.5

1.53

V

V

Regulator drop-out

3.3VOUT

IO < 1.2 A

1

V

V(DO)

Regulator dro out

voltage

1.5VOUT

IO < 250 mA

2.8

V

I

Overcurrent protection

3.3VOUT, IL↑, See Note 4

2.25

3

5.4

A

I(3.3VOUT)OC

Overcurrent protection

Hysteresis

500

mA

I

Overcurrent protection

1.5VOUT, See Note 4

0.45

0.6

1.08

A

I(1.5VOUT)OC

Overcurrent protection

Hysteresis

200

mA

CL

Load capacitance for both

regulated outputs

100

µF

ESR(CL)

Equivalent series resistance

1

Ω

Vth

Threshold voltage

5 V

↓, IO(3.3VOUT)= 1.2 A,

IO(1.5VOUT) = 250 mA

3.4

4.2

V

Vth

Threshold voltage

Hysteresis

250

mV

T S †

Thermal shutdown hysteresis

Temperature

↑

150

180

°C

TTSD†

Thermal shutdown hysteresis

Hysteresis

15

°C

† Design targets only. Not tested in production.

NOTE 4: In the event of an overcurrent condition, the output should be a constant current limit such that the current never exceeds 360% of

IO(TYP). Once the overcurrent condition is removed, the device returns to within the specified regulation limits.

The following parametric requirements are applicable to both 3.3VOUT and 1.5VOUT when subjected to these

transient tests.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

V(OTL)

Output transient voltage limit

Voltage that load step can affect nominal output

voltage (see Note 5)

–3%

3%

IO(STEP)

Output load step current

See Note 5

0

IO(TYP)

A

IO(SLEW)

Output load step current slew rate

See Note 5 and 6

8

A/

µs

t(STEP)

Output transient time limit

See Note 5

10

µs

Power up overshoot

Maximum voltage overshoot allowed on either

output when component begins regulation. Voltage

transient time limit is t(STEP) (see Note 5)

7

%

† Design targets only. Not tested in production..

NOTES:

5. Both outputs must maintain voltage regulation within

±3% of nominal, for a load step from 0 to IO(TYP) and from IO(TYP) to 0 A with

a current slew rate of 8A/ms. Load may be toggled at a rate of 20 kHz typical. The outputs must return to the specified regulation

limits within the specified time of 10

µs (typical).

6. Both linear regulators must be capable of regulating small ESR ceramic capacitors or aluminum electrolytic capacitors (see ESR

specification).