PT6510 datasheet(2/19 Pages) TI

2 / 19 page

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PT6510 Series

8-A 5-V/3.3-V Input Adjustable ISR

with Short-Circuit protection

SLTS220 FEBRUARY 2004

Specifications (Unless otherwise stated, T

a =25 °C, Vin =5 V, Cin =330 µF, Cout =330 µF, and Io =Iomax)

PT6510 SERIES

Characteristic

Symbol

Conditions

Min

Typ

Max

Units

Output Current

Over Vin range

0.1 (1)

—8

Input Voltage Range

Vin

Over Io Range

Vo ≥ 2.5 V

4.5 (2)

—6

Vo ≤ 1.8 V

3.1 (2)

—

VDC

Vo = 3.6 V

4.8 (2)

—6

Output Voltage Tolerance

Vo tol

Ta = –40 to +85 °C

Vo – 0.1

—

Vo + 0.1

Line Regulation

Regline

Over Vin range

±2

—

±10

Load Regulation

Regload

Over Io range

±2

—

±10

Efficiency

Io =3 A

Vo =3.3 V

—

Vo =2.5 V

—

Vo =1.8 V

—

Vo =1.5 V

—

Vo =1.2 V

—

Io =8 A

Vo =3.3 V

—

Vo =2.5 V

—

Vo =1.8 V

—

Vo =1.5 V

—

Vo =1.2 V

—

Vo Ripple (pk-pk)

20 MHz bandwidth

—

mVpp

Over-Current Threshold

Io trip

Reset, followed by auto-recovery

—

Transient Response

ttr

1 A/µs load step, 50 % to 100 % Iomax

—

100

—

µs

∆Vtr

Vo over/undershoot

—

±150

—

Switching Frequencyƒs

Over Vin and Io range

475

550

725

kHz

On/Off Standby (Pin 3)

Referenced to –Vin (pin 7)

Input High Voltage

VIH

—

Open (3)

Input Low Voltage

VIL

–0.1

—

+0.4

Input Low Current

IIL

—

–0.5

–

Standby Input Current

Iin stbyPins 3 & 7 connected

—

External Output Capacitance

Cout

See application schematic

330

—

5,000 (4)

µF

External Input Capacitance

Cin

See application schematic

330 (5)

——µF

Operating Temperature Range

Over Vin range

–40

—

+85 (6)

°C

Storage Temperature

—

–40

—

+125

°C

ReliabilityMTBF

Per Bellcore TR-332

6.4

—

106 Hrs

50 % stress, Ta =40 °C, ground benign

Mechanical Shock

—

Per Mil-Std-883D, method 2002.3,

—

500

—

G’s

1 ms, half-sine, mounted to a fixture

Mechanical Vibration

—

Per Mil-Std-883D, method 2007.2,

—10

—

G’s

20-2000 Hz

Weight

—

Suffixes N, A, & C

—

12.5

—

Suffixes R, G & B

—

16.5

—

Suffix H

—

18.5

—

grams

Suffix L

—

15.5

—

Suffix F

—

Flammability—

Materials meet UL 94V-0

Notes:

(1) The ISR will operate at no load with reduced specifications.

(2) The minimum input voltage required by the part is Vout + 1.2 V, or 3.1 V, whichever is greater.

(3) The STBY* control (pin 3) has an internal pull-up and if it is left open circuit the module will operate when input power is applied. The open-circuit

voltage is the input voltage, Vin. Refer to the application notes for other interface considerations.

(4) The module requires a 330 µF output capacitor for proper operation in all applications. For transient or dynamic load applications, additional output

capacitance (Cout) may be necessary. The maximum allowable output capacitance is 5,000 µF.

(5) In addition, the input capacitance (Cin) must be rated for a minimum of 1.2 Arms ripple current rating. For more information consult the related

application note on capacitor recommendations.

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

(7) The tab pins on the 16-pin mount package types (suffix L) must be soldered. For more information see the applicable package outline drawing.

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