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PT5408

6-A 5-V/3.3-V Input Adjustable

SWIFT™ Power Module

SLTS169C - MAY 2002 - REVISED OCTOBER 2003

PT5408

Characteristics

Symbols

Conditions

Min

Typ

Max

Units

Output Current

0

—

Input Voltage Range

3.1

3.6

Set-Point Voltage Tolerance

—

—

±2

Temperature Variation

—

±0.5

—

Line Regulation

—

±5

—

mV

Load Regulation

—

±10

—

mV

Total Output Variation

Includes set-point, line, load,

——±3

–40 °C

Efficiency

η

—

92

20 MHz bandwidth

—

15

—

mVpp

Transient Response

Recovery time

—

50

—

µSec

—

50

—

mV

Current Limit Threshold

—

13

—

A

Output Voltage Adjust

—

±10

—

%

Switching Frequency

—

700

—

kHz

Under-Voltage Lockout

UVLO

—

2.95

—

V

—

2.8

—

Inhibit Control (pin1)

Referenced to GND (pin3)

Input High Voltage

—

V

Input Low Voltage

–0.2

—

0.8

Input Low Current

Pin 1 to GND

—

–10

—

µA

Standby Input Current

pins 1 & 3 connected

—

1

—

mA

External Input Capacitance

——µF

External Output Capacitance

0

1,000

µF

Reliability

MTBF

Per Bellcore TR-332

48

Notes: (1) See SOA curves or consult factory for the appropriate derating.

(2) The Inhibit control (pin 1) has an internal pull-up, and if left open-circuit the module will operate when input power is applied. A small low-leakage

(<100 nA) MOSFET is recommended to control this input. See application notes for more information.

(3) The regulator requires a minimum of 100 µF input capacitor with a minimum 300 mArms ripple current rating. For further information, consult the

related application note on Capacitor Recommendations.

(4) An external output capacitor is not required for basic operation. Adding 100 µF of distributed capacitance at the load will improve the transient response.