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PT6520 Series

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

with Short-Circuit protection

PT6520 SERIES

Characteristic

Symbol

Conditions

Min

Typ

Max

Units

Output Current

—

8.0

A

Input Voltage Range

4.5

—

5.5

VDC

3.1

—

5.5

Set Point Voltage Tolerance

—

±1

±1.5

Temperature Variation

–40°

—

±0.5

—

Line Regulation

—

±5

±10

mV

Load Regulation

—

±5

±10

mV

Total Output Voltage Variation

Includes set-point, line, load,

—

–40°

Efficiency

η

—

92

—

—

88

—

—

85

—

%

—

82

—

—

80

—

—

75

—

—

89

—

—

85

—

—

82

—

%

—

78

—

—

75

—

—

71

—

20MHz bandwidth

—

35

—

Transient Response

—

50

—

µs

—

±70

—

mV

Short Circuit Threshold

—

12

22.5

A

Switching Frequency

300

350

400

kHz

Remote On/Off (Pin 1)

Input High Voltage

—

—

V

Input Low Voltage

–0.1

—

+0.4

Input Low Current

—

–0.5

–

mA

Standby Input Current

pins 3 & 7 connected

—

15

25

mA

External Output Capacitance

See application schematic

330

—

5,000

µF

External Input Capacitance

See application schematic

330

—

—

µF

Operating Temperature Range

-40

—

°C

Storage Temperature

—

-40

—

+125

°C

Reliability

MTBF

Per Bellcore TR-332

6.3

—

—

Mechanical Shock

—

Per Mil-Std-883D, method 2002.3,

—

500

—

G’s

1ms, half-sine, mounted to a fixture

Mechanical Vibration

—

Suffixes P, D, & E—

7.5

—

G’s

Mil-Std-883D, 20-2000Hz

Suffixes L & M

—

—

Weight

—

Suffixes P, D, & E—

12.5

—

Suffixes R, G & B

—

16.5

—

grams

Suffixes L & M

—

15.25

—

Suffixes Q & F

—

22

—

Flammability

—

Materials meet UL 94V-0

Notes:

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

(2) 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 typically 12.6V, and maybe as high as 15V. Refer to the application notes for other interface considerations.

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

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

Input/Output Capacitors: The PT6520 series requires a 330µF capacitor at both the input and output for proper operation in all applications. In addition, the input

necessary. The maximum allowable output capacitance is 5,000µF. For more information consult the related application note on capacitor recommendations.