PT6621 datasheet(1/5 Pages) TI

Part #	PT6621

Description	6 AMP 12V INPUT INTEGRATED SWITCHING REGULATOR

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Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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Standard Application

C1 = Required 330µF electrolytic

C2 = Required 330µF electrolytic

Q1= NFET-or Open Collector Gate

6 AMP 12V INPUT

INTEGRATED SWITCHING REGULATOR

PT6620

Series

PT6620

4,5,6

7,8,9,10

11,12,13

V

IN

COM

V

OUT

C

2

+

C

1

+

1

3

STBY

Q

1

REMOTE SENSE

LOAD

Ordering Information

PT6621

¨ = +3.3 Volts

PT6622

¨ = +1.5 Volts

PT6623

¨ = +2.5 Volts

PT6624

¨ = +3.6 Volts

PT6625

¨ = +5.0 Volts

PT6626

¨ = +9.0 Volts

• Single Device: 6A Output

• Input Voltage Range: 9V to 14V

• Adjustable Output Voltage

• 83% Efficiency

• Remote Sense Capability

• Standby Function

• Over-Temperature Protection

The PT6620 series is a new addition

to Power Trends’ line of 12V bus Inte-

grated Switching Regulators (ISRs).

Designed for stand-alone operation in

applications requiring as much as 6A of

output current, the PT6620 is packaged

in a 14-Pin SIP (Single In-line Package)

and is available in a surface-mount con-

figuration.

Only two external capacitors are

required for proper operation. Please

note that this product does not include

short circuit protection.

PT Series Suffix (PT1234X)

Case/Pin

Heat

Heat Spreader

Configuration

Spreader with Side Tabs

Vertical Through-Hole

PR

Horizontal Through-Hole DG

Horizontal Surface Mount EB

Function

1

Remote Sense

2

Do Not Connect

3

STBY*- Standby

4Vin

5Vin

6Vin

7

GND

8

GND

9

GND

10

GND

11

Vout

12

Vout

13

Vout

14

Vout Adjust

Pin-Out Information

For assistance or to order, call (800) 531-5782

48

Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com

Note: Back surface

of product is

conducting metal

Pkg Style 400

Specifications

Characteristics

PT6620 SERIES

(T

a = 25°C unless noted)

Symbols

Conditions

Min

Typ

Max

Units

Output Current

Io

Ta = 60°C, 200 LFM, pkg P

0.1*

—

6.0**

A

Ta = 25°C, natural convection

0.1*

—

6.5**

A

Input Voltage Range

Vin

0.1A

≤ Io ≤ 6.0A

Vo ≤ +5V

+9

—

+14

V

+6V

≤Vo≤+9V

Vo+3

—

+14

V

Output Voltage Tolerance

∆Vo

Vin = +12V, Io = 6.0A

Ta = 0 to 60°C

Vo-0.1

—

Vo+0.1

V

Output Voltage Adjust Range

Voadj

Pin 14 to Vo or ground

Vo = +3.3V

2.3

—

4.5

Vo = +1.5V

1.4

—

2.7

Vo = +2.5V

1.9

—

3.7

V

Vo = +3.6V

2.5

—

4.8

Vo = +5.0V

2.9

—

6.5

Vo = +9.0V

5.2

—

10.0

Line Regulation

Regline

+9V

≤Vin≤+14V, Io = 6.0A

—

±0.5

±1.0

%Vo

Load Regulation

Regload

Vin = +12V, 0.1≤ Io≤6.0A

—

±0.5

±1.0

%Vo

Vo Ripple/Noise

Vn

Vin = +12V, Io = 6.0A

Vo < +6V

—

50

—

mVpp

Vo > +6V

—

1.0

—

%Vo

Transient Response

ttr

Io step between 3.0A and 6.0A

—

100

—

µSec

with C2 = 330µF

Vos

Vo over/undershoot

—

150

—

mV

Efficiency

η

Vin = +12V, Io = 3.0A

Vo= +3.3/3.6V

—

84

—

%

Vo = +1.5V

—

68

—

%

Vo = +2.5V

—

76

—

%

Vo = +5.0V

—

86

—

%

Vo = +9.0V

—

93

—

%

Vin = +12V, Io =6.0A

Vo= +3.3/3.6V

—

83

—

%

Vo = +1.5V

—

66

—

%

Vo = +2.5V

—

75

—

%

Vo = +5.0V

—

85

—

%

Vo = +9.0V

—

92

—

%

*

ISR will operate down to no load with reduced specifications.

**

See SOA curves - Output power is limited to 30W maximum.

Note: The PT6620 Series requires a 330µF(output) and 330µF(input) electrolytic capacitors for proper operation in all applications.

Revised 2/5/99

Application Notes

Mechanical Outline

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