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參數(shù)資料
| 型號(hào)： | PT3301N |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 8 A SWITCHING REGULATOR, 900 kHz SWITCHING FREQ-MAX, SMA19 |
| 封裝： | SIP-19 |
| 文件頁(yè)數(shù)： | 1/4頁(yè) |
| 文件大?。?/td> | 247K |
| 代理商： | PT3301N |
For assistance or to order, call (800) 531-5782
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com
20
Revised 5/15/98
30 WATT POSITIVE STEP-DOWN
INTEGRATED SWITCHING REGULATOR
PT3300
Series
Standard Application
Cin = Optional 100F/100V electrolytic
Cout = Required 330F electrolytic
Note: Pins 4,5,6 and pins 10,11,12,13 are
connected internally.
Ordering Information
PT3301
o = +3.3 Volts
PT3302
o = +5.0 Volts
PT3303
o = +12.0 Volts
PT3304
o = +15.0 Volts
PT3300
7-9
4-6
14-17
V
IN
V
INGND
V
O
C
OUT
+
C
IN
+
19
REMOTE SENSE
10-13
2
LOAD
V
O Adjust
3
V
OGND
Inhibit
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
Features
Pin-Out Information
Pin
Function
1
Do Not Use
2
Inhibit
3Vo Adjust
4Vin GND
5Vin GND
6Vin GND
7Vin
8Vin
9Vin
10
Vo GND
11
Vo GND
12
Vo GND
13
Vo GND
14
Vo
15
Vo
16
Vo
17
Vo
18
Do Not Use
19
Remote Sense
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 330F output
capacitor for proper operation.
(For dimensions and PC
Styles 820 and 830.)
PT Series Suffix (PT1234X)
Case/Pin
Configuration
Vertical Through-Hole
N
Horizontal Through-Hole
A
Horizontal Surface Mount
C
Specifications
Characteristics
PT3300 SERIES
(T
a = 25°C unless noted)
Symbols
Conditions
Min
Typ
Max
Units
Output Current
Io
Over Vin range
Vo = +3.3V
0.50*
—
8.0
A
Vo = +5.0V
0.50*
—
6.0
A
Vo = +12.0V
0.25*
—
2.5
A
Vo = +15.0V
0.20*
—
2.0
A
Short Circuit Current
Isc
Vin = +25V
—
2
×Imax
——
Input Voltage Range
Vin
0.5
≤ Io ≤ Imax
20
—
60
V
Output Voltage Tolerance
Vo
Over Vin range, Io = Imax
—±1
±3
%Vo
0°C
≤ Ta ≤ +60°C
Line Regulation
Regline
Over Vin range
—
±0.5
±1
%Vo
Load Regulation
Regload
0.5
≤ Io ≤ Imax
—
±0.5
±1
%Vo
Vo Adjust Range
Vo adj
Over Vin and Io ranges
90
—
110
%Vo
V
o Ripple/Noise
Vn
Vin = +24V, Io = Imax
—
23%Vo
Transient Response
ttr
25% load change
—
100
250
Sec
with Cout = 330F
Vos
Vo over/undershoot
—
2
5
%Vo
Efficiency
η
Vin = +24V, Io = 0.5×Imax
Vo = +3.3V
—
80
—
%
Vo = +5.0V
—
85
—
%
Vo = +12.0V
—
87
—
%
Switching Frequency
o
Over Vin and Io ranges
600
750
900
kHz
Absolute Maximum
Ta
-20
—
+85
°C
Operating Temperature Range
Recommended Operating
Ta
Free air convection
-20
—
+65**
°C
Temperature Range
Over Vin and Io ranges
Storage Temperature
Ts
—
-40
—
+125
°C
Mechanical Shock
—
Per Mil-STD-883D, Method 2002.3
—
500
—
G’s
Mechanical Vibration
—
Per Mil-STD-883D, Method 2007.2,
—10
—
G’s
20-2000 Hz, soldered in a PC board
Weight
—
35
—
grams
*ISR will operate down to no load with reduced specifications. ** See Thermal Derating Curve
Note: The PT3300 Series requires a 330F electrolytic or tantalum output capacitor for proper operation in all applications.
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