24

Standard Application

See capacitor application note on page 43.

3 AMP HIGH-PERFORMANCE

ADJUSTABLE ISR

PT6305

Series

Specifications

Characteristics

PT6305 SERIES

(T

Symbols

Conditions

Min

Typ

Max

Units

Output Current

4.5

0.3

—

3.0**

ADC

Current Limit

—

3.6

5.0

ADC

Short Circuit Current

—

5.0

—

Apk

Input Voltage Range

0.3A

PT6305N

4.5

—

9

VDC

PT6306N

4.5

—

9

VDC

PT6307N

4.5

—

9

VDC

PT6308N

4.5

—

6.0

VDC

Static Voltage Tolerance

PT6305N

3.2

3.3

3.4

VDC

0°C

PT6306N

1.7

1.8

1.9

VDC

PT6307N

2.0

2.1

2.2

VDC

PT6308N

1.1

1.2

1.3

VDC

Line Regulation

4.5V

—

±25

±50

mV

Load Regulation

—

±25

±50

mV

—

66

—

mV

Transient Response

—

200

—

µSec

—

200

—

mV

Efficiency

η

PT6305N

—

85

—

%

PT6306N

—

74

—

%

PT6307N

—

77

—

%

PT6308N

—

63

—

%

PT6305N

—

80

—

%

PT6306N

—

68

—

%

PT6307N

—

72

—

%

PT6308N

—

57

—

%

Switching Frequency

4.5

500

650

800

KHz

0.3A

Operating Temperature

Free Air Convection (40-60 LFM)

0

—

+70*

°C

Thermal Resistance

θ

ja

Free Air Convection (40-60 LFM)

—

25

—

°C/W

Storage Temperature

—

-40

—

+125

°C

Mechanical Shock

Per Mil-STD-883D, Method 2002.3 Condition A, 1 msec, Half Sine,

—

—

500

G’s

mounted to a fixture

Mechanical Vibration

Per Mil-STD-883D, Method 2007.2 Condition A, 20-2000 Hz

—

—

15

G’s

Weight

—

—

—

11.2

—

grams

Relative Humidity

—

Non-condensing

0

—

95

%

*See Thermal Derating chart. **The PT6305 Series can be easily paralleled to provide output current in multiples of 3 amps. Please contact a Power Trends’ Application Engineer for the

appropriate application note. Note: The PT6305 Series requires a 100µF electrolytic capacitor for proper operation in all applications.

(+)

COM

PT6305,6,7,8

5,6,7,8

9,10,11

COM

(+)

C1

C2

2,3,4

12

Ordering Information

PT6305

n = +3.3 Volts

PT6306

n = +1.8 Volts

PT6307

n = +2.1 Volts

PT6308

n = +1.2 Volts

(For dimensions, see page 66.)

Pin-Out Information

Pin No. Function

1

N/C

2

3

4

5

GND

6

GND

Pin No. Function

7

GND

8

GND

9

10

11

12

Adjust

(See page 40.)

0.36" x 2.00” x 0.60"(H)

+4.5V to +9.0V

The PT6305N is Power Trends’

new high performance +5V to +3.3V, 3

Amp, 12-Pin SIP (Single In-line-

Package) Integrated Switching

Regulator (ISR). This high-perfor-

mance ISR allows easy integration of

low-power 3.3V logic IC’s into existing

5V systems without redesigning the

central power supply. Only one external

capacitor is required for proper

operation. The PT6306,7,8 can be used

to power high-speed data buses (+2.1V),

or the new GTL (+1.2V) logic buses.

Case/Pin

Heat Tab Configuration

Configuration

None

Side

Vertical Through-Hole

NR

Horizontal Through-Hole

AG

Horizontal Surface Mount

CB

(See Thermal Application Notes on page 44 for heat tab

application data.)

12

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