For technical support and more information, see inside back cover or visit www.ti.com/powertrends

The PT6680 series is a new addi-

tion to Power Trends’ line of 24V bus

Integrated Switching Regulators (ISRs).

Designed for general purpose indus-

5 Amp 18-36V Input

Integrated Switching Regulator

PT6680 Series

Standard Application

PT6680

4,5,6

7,8,9,10

11,12,13

V

IN

COM

COM

V

OUT

C

2

+

C

1

+

1

3

STBY

Q

1

REMOTE SENSE

LOAD

Ordering Information

PT6681! = +3.3 Volts

PT6682! = +2.5 Volts

PT6683! = +5.0 Volts

PT6684! = +9.0 Volts

PT6685! = +15.0 Volts

PT6686! = +12.0 Volts

Case/Pin

Heat

Heat Spreader

Configuration

Spreader with Side Tabs

Vertical Through-Hole

PR

1

Remote Sense

2

Do Not Connect

3

STBY*- Standby

7

GND

8

GND

9

GND

10GND

11

12

13

14

Pin-Out Information

trial applications requiring as much as

36V input and 5A of output current,

the PT6680 is packaged in a 14-Pin

SIP (Single In-line Package) and is

available in a surface-mount configu-

ration.

Only two external capacitors are

required for proper operation. Please

note that this product does not include

short circuit protection.

Note: Back surface

of product is

conducting metal

Pkg Style 400

Specifications

Characteristics

PT6680 SERIES

(T

Symbols

Conditions

Min

Typ

Max

Units

Output Current

—

5.0

A

—

5.0

Input Voltage Range

0.1A

+18V

—

+36V

V

Output Voltage Tolerance

—

V

Output Voltage Adjust Range

2.2

—

4.7

1.8

—

4.3

3.0

—

6.5

V

6.0

—

10.2

9.0—

13.6

10.0

—

17.0

Line Regulation

+18V

—

±0.5

±1.0

Load Regulation

—

±0.5

±1.0

—

50—

mVpp

Transient Response

—

100

—

µSec

—

100

—

mV

Efficiency

η

—

78

—

—

73

—

—

82

—

%

—

87

—

—

88

—

—

90

—

Switching Frequency

+18V

50

055060

0kHz

Maximum Operating

-40—

°C

Temperature Range

Storage Temperature

—

-40—

+125

°C

Mechanical Shock

—

Per Mil-STD-883D, Method 2002.3

—

500

—

G’s

Mechanical Vibration

—

Per Mil-STD-883D, Method 2007.2,

—

7.5

—

G’s

20-2000 Hz, soldered in a PC board

Weight

—

—

—

14

—

grams

Notes (1) The 560µF electrolytic input capacitor must be rated for 1.5Arms ripple current. Both an input and output capacitor is required for proper operation.

(2) The ISR will operate down to no load with reduced specifications.

(3) Consult the SOA curves or contact the factory to determine the appropriate derating.

SLTS098

(Revised 6/30/2000)

PT6680