Texas Instruments PT6302A, PT6302B, PT6302C, PT6302G, PT6302N Datasheet

For assistance or to order, call [phone]

PT6300 Series

3 AMP ADJUSTABLE POSITIVE STEP-DOWN
INTEGRATED SWITCHING REGULATORS

Application Notes

Mechanical Outline

Product Selector Guide

Revised 5/15/98

• 90% Efficiency

• Adjustable Output Voltage

• Internal Short Circuit Protection

• Over-Temperature Protection

• On/Off Control (Ground Off)

• Small SIP Footprint

• Wide Input Range

Switching Regulators (ISRs) designed to
meet the on-board power conversion
needs of battery powered or other equip­ment requiring high efficiency and small
size. This high performance ISR family
offers a unique combination of features
combining 90% typical efficiency with
open-collector on/off control and ad-

The PT6300 Series is a line of
High-Performance 3 Amp, 12-Pin SIP
(Single In-line Package) Integrated

Pin-Out Information

Pin Function

Inhibit

1

(30V max)

2V

Standard Application

VOADJ

V

IN

C1

INH
COM COM

C1 = Optional 1µF ceramic
C2 = Required 100µF electrolytic
Q1 =NFET

12

V

2,3,4

PT6300

1

5,6,7,8

Q1

9,10,11

OUT

+

C2

Specifications

Characteristics
(Ta=25°C unless noted) Symbols Conditions Min Typ Max Units

Output Current I
Short Circuit Current I
Input Voltage Range V

(Note: inhibit function cannot V
be used above 30V.) Vo = 12V 16 — 30/38** V

Output Voltage Tolerance ∆V

Line Regulation Reg
Load Regulation Reg
Vo Ripple/Noise V
Transient Response t

with Co = 100µF V
Efficiency η Vin=9V, Io = 0.5 A, Vo = 3.3V — 84 — %

Switching Frequency ƒ

Shutdown Current I
Quiescent Current I
Output Voltage V

Adjustment Range Above V
Absolute Maximum T

Operating Temperature Range
Recommendated Operating T

Temperature Range At Vin = 24V, Io = 2.5A
Thermal Resistance θ

Storage Temperature T
Mechanical Shock Per Mil-STD-883D, Method 2002.3, 1 msec,

Mechanical Vibration Per Mil-STD-883D, Method 2007.2,

Weight — — — 6.5 — grams

* ISR will operate to no load with reduced specifications.
** Input voltage cannot exceed 30V when the inhibit function is used. *** See Thermal Derating chart.

Note:

The PT6300 Series requires a 100µF electrolytic or tantalum output capacitor for proper operation in all applications.

o

sc

in

o

line

load

n

tr

os

o

sc

nl

o

a

a

ja

s

in

3V

in

4V

in

5 GND
6 GND
7 GND
8 GND
9V

out

10 V

out

11 V

out

12 V

out

Adj

Over Vin range 0.1* — 3.0 A
Vin = Vo + 5V — 5.0 — Apk

0.1 ≤ Io ≤ 3.0 A Vo = 3.3V 9 — 26 V

Over Vin Range, Io = 3.0 A
Ta = 0°C to +60°C

Over Vin range — ±0.25 ±0.5 %V

0.1 ≤ Io ≤ 3.0 A — ±0.25 ±0.5 %V
V

= V

min, Io = 3.0 A — ±2 — %V

in

in

50% load change — 100 200 µSec
Vo over/undershoot — 5.0 — %V

V

=9V, Io = 0.5 A, Vo = 5V — 89 — %

in

Vin=16V, Io = 0.5 A, Vo = 12V — 91 — %
Over Vin and Io ranges,Vo = 3.3V/5V 400 500 600 kHz

Vin = 15V — 100 — µA
Io = 0A, V
Below V

=10V — 10 — mA

in

o
o

Free Air Convection, (40-60LFM) -40 — +80*** °C

Free Air Convection (40-60LFM) — 30 — °C/W
— -40 — +125 °C

Half Sine, mounted to a fixture

20-2000 Hz,Soldered in a PC board

Ordering Information

PT6302¨ = +5 Volts
PT6303¨ = +3.3 Volts
PT6304¨ = +12 Volts

Pkg Style 200

= 5V 9 — 30/38** V

o

Vo = 12V 600 750 900 kHz

justable output voltage.

Quiescent current in the shutdown

mode is typically less than 100µA.

PT Series Suffix

Case/Pin
Configuration

Vertical Through-Hole
Horizontal Through-Hole
Horizontal Surface Mount

PT6300 SERIES

— ±1.0 ±2.0 %V

See Application Notes.

-40 — +85 °C

— 500

—10—G’s

(PT1234X)

—

N
A
C

o

o

o

o

o

G’s

10

Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 [phone] Fax: [phone] http://www.powertrends.com

For assistance or to order, call [phone]

V

PT6300 Series

CHARACTERISTIC DATA

PT6303, 3.3 VDC (See Note 1) PT6302, 5.0 VDC (See Note 1) PT6304, 12.0 VDC (See Note 1)

Wide Input Range Products

DATA SHEETS

Efficiency vs Output Current

100

90

80

70

60

Efficiency - %Ripple-(mV)Iout-(Amps)PD-(Watts)

50

40

00.511.522.53

Iout-(Amps)

Vin

9.0V

12.0V

15.0V

20.0V

26.0V

Efficiency vs Output Current Efficiency vs Output Current

100

90

80

70

Efficiency - %

60

50

40

00.511.522.53

Iout-(Amps)

Ripple vs Output Current Ripple vs Output Current

160

140

120

100

80

60

40

20

0

00.51 1.522.53

Thermal Derating (Ta) (See Note 2)

3

2.5

2

1.5

1

0.5

0

9 111315171921232527

Iout-(Amps)

85°C

70°C

Vin

60°C

Vin-(Volts) Vin-(Volts)Vin-(Volts)

26.0V

20.0V

15.0V

12.0V

9.0V

180

160

140

120

100

80

Ripple-(mV)

60

40

20

0

00.511.522.53

Iout-(Amps)

Thermal Derating (Ta) (See Note 2) Thermal Derating (Ta) (See Note 2)

3

2.5

2

1.5

1

Iout-(Amps)

0.5

0

9 13172125293337

85°C

60°C

70°C

50°C

100

90

Vin

9.0V

12.0V

15.0V

24.0V

30.0V

38.0V

80

70

Efficiency - %

60

50

40

0 0.5 1 1.5 2 2.5 3

Vin

16.0V

20.0V

24.0V

30.0V

38.0V

Iout-(Amps)

Ripple vs Output Current

350

Vin

38.0V

30.0V

24.0V

15.0V

12.0V

9.0V

300

250

200

150

100

Ripple-(mV)Iout-(Amps)

50

0

00.511.522.53

Iout-(Amps)

3

2.5

2

1.5

1

0.5

0

16 19 22 25 28 31 34 37

60°C

70°C

50°C

40°C

Vin

38.0V

30.0V

24.0V

20.0V

16.0V

Power Dissipation vs Output Current Power Dissipation vs Output Current

3.5

3

2.5

2

1.5

1

0.5

0

0 0.5 1 1.5 2 2.5 3

Vin

26.0V

20.0V

15.0V

12.0V

9.0V

3.5

3

2.5

2

1.5

PD-(Watts)

1

0.5

0

0 0.5 1 1.5 2 2.5 3

Vin

38.0V

30.0V

24.0V

15.0V

12.0V

9.0V

Power Dissipation vs Output Current

4.5

4

3.5

3

2.5

2

PD-(Watts)

1.5

1

0.5

0

00.511.522.53

Vin

38.0V

30.0V

24.0V

20.0V

16.0V

Iout-(Amps) Iout-(Amps) Iout-(Amps)

Note 1: All data listed in the above graphs except for derating data has been developed from actual products tested at 25°C. This data is considered typical data for the ISR
Note 2: Thermal derating graphs are developed in free air convection cooling of 40-60 LFM. (See Thermal Application note.)

Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 [phone] Fax: [phone] http://www.powertrends.com

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