鈥?/div>
High Efficiency > 85%
Self-Contained Inductor
Short Circuit Protection
Over-T
emperature 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.
Pin-Out Information
Pin
1
Ordering Information
Function
GND
-V
in
-V
out
PT79SR1
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
XX
Y
Package Suffix
V
= Vertical Mount
S
= Surface Mount
H
= Horizontal
Mount
Standard Application
COM
COM
2
3
C1
-Vin
2
1
D1
3
C2
-Vout
PT79SR1
C1 = Optional ceramic (1碌F)
C2 = Optional ceramic (1-5碌F)
D1 = Zener diode required to clamp
turn-on overshoot
(See Application Note)
Specifications
Characteristics
(T
a
= 25擄C unless noted)
Output Current
Short Circuit Current
Input Voltage Range
Output Voltage Tolerance
Line Regulation
Load Regulation
V
o
Ripple/Noise
Transient Response
Efficiency
Switching Frequency
Absolute Maximum
Operating T
emperature Range
Recommended Operating
Temperature Range
Thermal Resistance
Temperature Coefficient
Storage Temperature
Mechanical Shock
Mechanical Vibration
Weight
Symbols
I
o
I
sc
V
in
鈭哣
o
Reg
line
Reg
load
V
n
t
tr
畏
Pkg Style 500
PT79SR100 SERIES
Conditions
Over V
in
range
V
in
=V
o
-4V
I
o
=-0.1 to -1.5 A
-0.1
鈮?/div>
I
o
鈮?/div>
-1.5 A
V
o
=-5V
V
o
=-15V
Min
-0.1*
鈥?/div>
-9
-19
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
0.95
-40
Free Air Convection, (40-60LFM)
Over V
in
and I
o
ranges
Free Air Convection, (40-60LFM)
Over V
in
and I
o
ranges
鈥?/div>
Per Mil-STD-883D, Method 2002.3
Per Mil-STD-883D, Method 2007.2,
20-2000 Hz, soldered in a PC board
鈥?/div>
** See Thermal Derating chart.
Typ
鈥?/div>
-3.5
鈥?/div>
鈥?/div>
鹵1.0
鹵1.0
鹵0.5
35
100
30
85
1.0
鈥?/div>
鈥?/div>
45
鹵0.5
鈥?/div>
500
5
7.0
Max
-1.5
鈥?/div>
-30
-30
鹵3.0
鹵2.0
鹵1.0
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
1.05
+85
+60**
鈥?/div>
鹵1.5
+125
鈥?/div>
鈥?/div>
鈥?/div>
Units
A
Apk
V
V
%V
o
%V
o
%V
o
mV
pp
碌Sec
%V
o
%
MHz
擄C
擄C
擄C/W
mV/擄C
擄C
G鈥檚
G鈥檚
Grams
Over Vin range, I
o
=-1.5 A
T
a
=-20擄C to shutdown
Over V
in
range
-0.1
鈮?/div>
I
o
鈮?/div>
-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
茠
o
T
a
T
a
-40
鈥?/div>
鈥?/div>
-40
鈥?/div>
鈥?/div>
鈥?/div>
胃
ja
T
c
T
s
鈥?/div>
鈥?/div>
鈥?/div>
* ISR will operate down to no load with reduced specifications.
For technical support and more information, see inside back cover or visit www.ti.com/powertrends
PT79SR152S相關(guān)型號(hào)PDF文件下載
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