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ELECTRICAL CHARACTERISTICS (PTB48500A)

PTB48500

PTB48501

PTB48502

SLTS218C – SEPTEMBER 2003 – REVISED AUGUST 2006

(Unless otherwise stated, T

PTB48500A

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Output Power

19.8

W

8.4

Both outputs

28

W

Output Current

0

A

0

Total (both outputs)

0

13

A

Output Voltage

3.2

3.3

3.4

Includes set point, line, load, –40

°C ≤ T

V

1.16

1.2

1.24

±0.5

∆Reg

temp

Temperature Variation

–40

°C ≤ T

±0.8

∆Reg

line

Line Regulation

±1

±10

mV

∆Reg

load

Load Regulation

±3

±12

mV

∆Vo

1

10

∆Reg

cross

Cross Regulation

mV

∆Vo

2

10

η

Efficiency

82%

20

50

20 MHz bandwidth

20

50

1 A/

µs load step, 50% to 100% I

30

µs

Transient Response

∆V

tr

±2.0

Over Current Threshold

13.5

16

A

Output Voltage Adjust

Vadj

–10

20

Range

Switching Frequency

500

550

600

kHz

34

Under-Voltage Lockout

V

32

On/Off Enable (pin 3)

Input High Voltage

3.6

V

Input Low Voltage

–0.2

0.8

Input Low Current

–1

mA

Standby Input Current

Pins 3 and 5 connected

2

mA

Internal Input Capacitance

2

µF

5000

External Output

µF

Capacitance

5000

MTBF

Reliability

1.5

ground benign

(1)

See Safe Operating Area curves or contact the factory for the appropriate derating.

(2)

The On/Off Enable (pin 3) has an internal pull-up and may be controlled with an open-collector (or open-drain) transistor. The input is

when input power is applied.

(3)

An output capacitor is not required.

3

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