78SR106VC [TI]
1.5 AMP POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATOR; 1.5安培正向降压集成开关稳压器
| 型号： | 78SR106VC |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 1.5 AMP POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATOR |
| 文件： | 总3页 (文件大小：216K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
For assistance or to order, call (800) 531-5782
7 8 S R 1 0 0 S e r i e s
1.5 AMP POSITIVE STEP-DOWN
INTEGRATED SWITCHING REGULATOR
Revised 6/30/98
The 78SR100 is a series of wide input
• Very Small Footprint
• High Efficiency > 85%
• Self-Contained Inductor
• Internal Short-Circuit Protection
• Over-Temperature Protection
• Wide Input Range
voltage, 3-terminal Integrated Switching
Regulators (ISRs). These ISRs have a maxi-
mum output current of 1.5A and an output
voltage that is laser trimmed to a variety of
industry standard voltages.
These 78 series regulators have excellent
line and load regulation with internal short-
circuit and over-temperature protection, are
very flexible, and may be used in a wide
variety of applications.
Pin-Out Information
Ordering Information
78SR1
C
XX Y
Pin Function
1
2
3
Vin
Output Voltage
Package Suffix
GND
Vout
Standard Application
05 = 5.0 Volts
53 = 5.25 Volts
06 = 6.0 Volts
74 = 7.15 Volts
08 = 8.0 Volts
09 = 9.0 Volts
10 = 10.0 Volts
12 = 12.0 Volts
14 = 13.9 Volts
15 = 15.0 Volts
V = Vertical Mount
S = Surface Mount
H = Horizontal
Mount
Vin
Vout
GND
1
3
78SR100
2
C1
GND
C2
C1 = Optional 1µF ceramic
C2 = Optional 1µF ceramic
Pkg Style 500
Specifications
78SR100 SERIES
Characteristics
(Ta = 25°C unless noted)
Symbols
Io
Conditions
Min
0.1*
—
Typ
—
Max
Units
A
Output Current
Over Vin range
Vin = Vin min
0.1 ≤ Io ≤ 1.5A
1.5
—
Short Circuit Current
Input Voltage Range
Isc
3.5
Apk
Vin
Vo= 5V
7
—
—
30
30
V
V
Vo= 12V
14.5
Output Voltage Tolerance
∆Vo
Over Vin range, Io=1.5A
Ta = 0°C to +60°C
—
±1.0
±2.0
%V
o
Line Regulation
Load Regulation
Vo Ripple/Noise
Regline
Regload
Vn
Over Vin range
—
—
—
±0.2
±0.1
±0.4
±0.2
—
%V
%V
o
0.1 ≤ Io ≤ 1.5A
o
Vin= 9V, Io= 1.5A
Vin= 16V, Io= 1.5A
Vo= 5V
Vo= 12V
50
80
mVpp
mVpp
Transient Response
Efficiency
ttr
50% load change
—
—
100
30
—
—
µSec
Vo over/undershoot
%V
o
η
Vin= 10V, Io= 1A
Vin= 17V, Io= 1A
Vo= 5V
—
—
85
90
—
—
%
%
Vo= 12V
Switching Frequency
ƒo
Over Vin range, Io=1.5A
—
600
650
700
kHz
Absolute Maximum
Operating Temperature Range
Ta
-40
—
+85
°C
Recommended Operating
Temperature Range
Ta
Free Air Convection, (40-60LFM)
At Vin= 24V, Io=1.0A
-40
—
+80**
°C
Thermal Resistance
Storage Temperature
Mechanical Shock
θja
Ts
—
—
Free Air Convection, (40-60LFM)
—
—
45
—
°C/W
°C
-40
—
—
+125
—
Per Mil-STD-883D, Method 2002.3
500
G’s
Mechanical Vibration
Per Mil-STD-883D, Method 2007.2,
20-2000 Hz, soldered in a PC board
—
—
—
5
G’s
Weight
—
—
6.5
—
grams
*ISR will operate down to no load with reduced specifications.
**See Thermal Derating chart.
2
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com
For assistance or to order, call (800) 531-5782
7 8 S R 1 0 0 S e r i e s
C H A R A C T E R I S T I C
D A T A
78SR133_ 3.3 VDC (See Note 1)
78SR105_ 5.0 VDC (See Note 1)
78SR112_ 12.0 VDC (See Note 1)
Efficiency vs Output Current
Efficiency vs Output Current
Efficiency vs Output Current
100
90
80
70
60
50
40
100
90
80
70
60
50
40
100
90
80
70
60
50
40
Vin
Vin
Vin
7.0V
7.0V
14.0V
20.0V
25.0V
30.0V
35.0V
10.0V
15.0V
20.0V
25.0V
30.0V
10.0V
15.0V
20.0V
25.0V
30.0V
0.0
0.5
1.0
1.5
0.0
0.5
1.0
1.5
0.0
0.5
1.0
1.5
Iout (A)
Iout (A)
Iout (A)
Ripple vs Output Current
Ripple vs Output Current
Ripple vs Output Current
60
50
40
30
20
10
0
80
70
60
50
40
30
20
10
0
140
120
100
80
Vin
7.0V
Vin
7.0V
Vin
14.0V
10.0V
15.0V
20.0V
25.0V
30.0V
10.0V
15.0V
20.0V
25.0V
30.0V
20.0V
25.0V
30.0V
35.0V
60
40
20
0
0.0
0.5
1.0
1.5
0.0
0.5
1.0
1.5
0.0
0.5
1.0
1.5
Iout (A)
Iout (A)
Iout (A)
Thermal Derating (Ta)
(See Note 2)
Thermal Derating (Ta)
(See Note 2)
Thermal Derating (Ta)
(See Note 2)
1.6
1.4
1.2
1
1.6
1.4
1.2
1
1.6
1.4
1.2
1
60°C
60°C
60°C
70°C
85°C
70°C
70°C
85°C
85°C
0.8
0.6
0.4
0.2
0
0.8
0.6
0.4
0.2
0
0.8
0.6
0.4
0.2
0
16
19
22
25
28
31
34
37
40
9
12
15
18
21
24
27
30
33
36
39
9
13
17
21
25
Vin (Volts)
Vin (Volts)
Vin (Volts)
Power Dissipation vs Output Current
Power Dissipation vs Output Current
Power Dissipation vs Output Current
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
2.5
2.0
1.5
1.0
0.5
0.0
Vin
Vin
7.0V
Vin
7.0V
14.0V
20.0V
25.0V
30.0V
35.0V
10.0V
15.0V
20.0V
25.0V
30.0V
10.0V
15.0V
20.0V
25.0V
30.0V
0.0
0.5
1.0
1.5
0.0
0.5
1.0
1.5
0.0
0.5
1.0
1.5
Iout (A)
Iout (A)
Iout (A)
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 Notes.)
3
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com
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