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參數(shù)資料
| 型號： | SLTS061A |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 抗輻射高效，5安培開關(guān)穩(wěn)壓器 |
| 文件頁數(shù)： | 1/3頁 |
| 文件大小： | 488K |
| 代理商： | SLTS061A |
For technical support and more information, see inside back cover or visit www.ti.com/powertrends
PT79SR100 Series
-1.5 Amp Negative Step-Down
Integrated Switching Regulator
High Efficiency > 85%
Self-Contained Inductor
Short Circuit Protection
Over-Temperature Protection
The PT79SR100 is a line of
Negative Input/Negative Output
3-terminal Integrated Switching
Regulators (ISRs). These ISRs have a
maximum output current of -1.5 Amps
and an output voltage that is laser
trimmed to most industry standard volt-
ages. They have excellent line and load
regulation, and are ideal for applications,
such as RS232 and Ethernet communica-
tions, ECL logic, and op-amp circuitry.
PT79SR1
COM
COM
-Vin
C1
1
2
3
C2
D1
-Vout
Pin-Out Information
Pin
1
2
3
Function
GND
-V
in
-V
out
Ordering Information
PT79SR1
XX
Y
Output Voltage
05
= -5.0 Volts
52
= -5.2 Volts
06
= -6.0 Volts
08
= -8.0 Volts
09
= -9.0 Volts
12
= -12.0 Volts
15
= -15.0 Volts
Package Suffix
V
= Vertical Mount
S
= Surface Mount
H
= Horizontal
Mount
Standard Application
C1 = Optional ceramic (1μF)
C2 = Optional ceramic (1-5μF)
D1= Zener diode required to clamp
turn-on overshoot
(See Application Note)
Specifications
Characteristics
(T
a
= 25°C unless noted)
Output Current
Short Circuit Current
Input Voltage Range
PT79SR100 SERIES
Min
-0.1*
—
-9
-19
Symbols
I
o
I
sc
V
in
Conditions
Over V
in
range
V
in
=V
o
-4V
I
=-0.1 to -1.5 A
-0.1
≥
I
o
≥
-1.5 A
Over Vin range, I
=-1.5 A
T
a
=-20°C to shutdown
Over V
in
range
-0.1
≤
I
o
≤
-1.5 A
V
in
=-15V, I
o
=-1.0 A,V
o
=-5V
50% load change
V
o
=overshoot/undershoot
V
in
=-10V, I
o
=-1.0A, V
o
=-5V
Over V
in
and I
o
ranges
Typ
—
-3.5
—
—
Max
-1.5
—
-30
-30
Units
A
Apk
V
V
V
o
=-5V
V
o
=-15V
Output Voltage Tolerance
V
o
—
±1.0
±3.0
%V
o
Line Regulation
Load Regulation
V
o
Ripple/Noise
Transient Response
Reg
line
Reg
load
V
n
t
tr
—
—
—
—
—
—
0.95
±1.0
±0.5
35
100
30
85
1.0
±2.0
±1.0
—
—
—
—
1.05
%V
o
%V
o
mV
pp
μSec
%V
o
%
MHz
Efficiency
Switching Frequency
Absolute Maximum
Operating Temperature Range
Recommended Operating
Temperature Range
Thermal Resistance
Temperature Coefficient
Storage Temperature
Mechanical Shock
Mechanical Vibration
η
o
T
a
-40
—
+85
°C
T
a
Free Air Convection, (40-60LFM)
Over V
in
and I
o
ranges
Free Air Convection, (40-60LFM)
Over V
in
and I
o
ranges
—
Per Mil-STD-883D, Method 2002.3
Per Mil-STD-883D, Method 2007.2,
20-2000 Hz, soldered in a PC board
—
-40
—
+60**
°C
θ
ja
T
c
T
s
—
—
—
—
-40
—
45
±0.5
—
500
—
±1.5
+125
—
—
°C/W
mV/°C
°C
G’s
—
5
G’s
Weight
—
—
7.0
—
Grams
* ISR will operate down to no load with reduced specifications.
** See Thermal Derating chart.
Pkg Style 500
SLTS061A
(Revised 6/30/2000)
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