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PT3303 Datasheet Preview

PT3303 Datasheet

30 WATT POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATOR

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For assistance or to order, call (800) 531-5782
PT3300
Series
30 WATT POSITIVE STEP-DOWN
INTEGRATED SWITCHING REGULATOR
Application Notes
Mechanical Outline
Product Selector Guide
Revised 5/15/98
The PT3300 is a new series of high-
input voltage, 30 Watt, non-isolated
Integrated Switching Regulators (ISRs)
housed in a 19-pin SIP package. The 20
to 60 V input range allows easy integra-
tion into many distributed power
applications which utilize 24, 28, or 48V
bus architechures.
The PT3300 series is available with
3.3, 5, 12, or 15V outputs. The output
voltage is adjustable from 90 to 110% of
nominal with the addition of an external
resistor. Other easy to use features include
an inhibit function and remote sense
which automatically compensates for any
voltage drop from the ISR to the load. As
with other Power Trends’ products, the
PT3300 includes built in current limit,
short circuit protection and over-tempera-
ture shutdown.
The PT3300 requires a 330µF output
capacitor for proper operation.
Standard Application
Inhibit
VO Adjust
2 3 19 REMOTE SENSE
PT3300VIN 7-9
14-17
VO
+
CIN
4-6 10-13
+
COUT
LOAD
VINGND
VOGND
Cin = Optional 100µF/100V electrolytic
Cout = Required 330µF electrolytic
Note: Pins 4,5,6 and pins 10,11,12,13 are
connected internally.
Specifications
Pin-Out Information Ordering Information
Pin Function
PT3301o = +3.3 Volts
1 Do Not Use
2 Inhibit
3 Vo Adjust
4 Vin GND
5 Vin GND
6 Vin GND
7 Vin
8 Vin
9 Vin
PT3302o = +5.0 Volts
PT3303o = +12.0 Volts
PT3304o = +15.0 Volts
PT Series Suffix (PT1234X)
Case/Pin
Configuration
10 Vo GND
11 Vo GND
12 Vo GND
13 Vo GND
14 Vo
15 Vo
16 Vo
17 Vo
18 Do Not Use
Vertical Through-Hole
Horizontal Through-Hole
Horizontal Surface Mount
N
A
C
(For dimensions and PC
board layout, see Package
Styles 820 and 830.)
19 Remote Sense
Features
30W Output Power
Input Voltage Range:
20V to 60V
High Efficiency
Vo Inhibit
Vo Adjust
Remote Sense
Current Limit
Short-Circuit Protection
Over-Temperature Shutdown
19-pin SIP Package
Characteristics
(Ta = 25°C unless noted)
Output Current
Symbols
Io
Short Circuit Current
Input Voltage Range
Output Voltage Tolerance
Line Regulation
Load Regulation
Vo Adjust Range
Vo Ripple/Noise
Transient Response
with Cout = 330µF
Efficiency
Switching Frequency
Absolute Maximum
Operating Temperature Range
Recommended Operating
Temperature Range
Storage Temperature
Mechanical Shock
Mechanical Vibration
Weight
Isc
Vin
Vo
Regline
Regload
Vo adj
Vn
ttr
Vos
η
ƒo
Ta
Ta
Ts
Conditions
Over Vin range
Vin = +25V
0.5 Io Imax
Over Vin range, Io = Imax
0°C Ta +60°C
Over Vin range
0.5 Io Imax
Over Vin and Io ranges
Vin = +24V, Io = Imax
25% load change
Vo over/undershoot
Vin = +24V, Io = 0.5×Imax
Over Vin and Io ranges
Vo = +3.3V
Vo = +5.0V
Vo = +12.0V
Vo = +15.0V
Vo = +3.3V
Vo = +5.0V
Vo = +12.0V
Free air convection
Over Vin and Io ranges
Per Mil-STD-883D, Method 2002.3
Per Mil-STD-883D, Method 2007.2,
20-2000 Hz, soldered in a PC board
PT3300 SERIES
Min Typ
0.50*
0.50*
0.25*
0.20*
— 2×Imax
20 —
— ±1
— ±0.5
— ±0.5
90 —
—2
— 100
—2
— 80
— 85
— 87
600 750
-20 —
-20 —
-40 —
— 500
— 10
— 35
Max
8.0
6.0
2.5
2.0
60
±3
±1
±1
110
3
250
5
900
+85
+65**
+125
Units
A
A
A
A
V
%Vo
%Vo
%Vo
%Vo
%Vo
µSec
%Vo
%
%
%
kHz
°C
°C
°C
G’s
G’s
grams
*ISR will operate down to no load with reduced specifications. ** See Thermal Derating Curve
Note: The PT3300 Series requires a 330µF electrolytic or tantalum output capacitor for proper operation in all applications.
20 Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com




Power Trends

PT3303 Datasheet Preview

PT3303 Datasheet

30 WATT POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATOR

No Preview Available !

CHARACTERISTIC DATA
For assistance or to order, call (800) 531-5782
PT3300 Series
PT3301, 3.3 VDC (See Note 1)
PT3302, 5.0 VDC (See Note 1)
Efficiency vs Output Current
100
90
80
70
60
50
40
012345678
Output Current (Amps)
Vin
20.0V
24.0V
30.0V
36.0V
48.0V
60.0V
Ripple vs Output Current
100
80 Vin
60.0V
60
48.0V
36.0V
30.0V
24.0V
40 20.0V
20
0
012345678
Output Current (Amps)
Power Dissipation vs Output Current
7
6
5
4
3
2
1
0
0123456
Output Current (Amps)
Vin
60.0V
48.0V
36.0V
30.0V
24.0V
20.0V
7
Efficiency vs Output Current
100
90
80
70
60
50
40
0
12345
Output Current (Amps)
Ripple vs Output Current
60
50
40
30
20
10
0
012345
Output Current (Amps)
Vin
20.0V
24.0V
30.0V
36.0V
48.0V
60.0V
6
Vin
60.0V
48.0V
36.0V
30.0V
24.0V
20.0V
6
Thermal Derating (Ta) (See Note 2)
6˝
5.5
5
85°C
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
20 25 30 35 40 45 50 55
Vin-(Volts)
60
Power Dissipation vs Output Current
7
6
5
4
3
2
1
0
012345
Output Current (Amps)
Vin
60.0V
48.0V
36.0V
30.0V
24.0V
20.0V
6
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 DC-DC converter.
Note 2: Thermal derating graphs are developed in free air convection cooling of 40-60 LFM. (See Thermal Application Notes.)
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com
21


Part Number PT3303
Description 30 WATT POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATOR
Maker Power Trends
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PT3303 Datasheet PDF






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