BOURNS SC5A

HDLV
SC5A SERIES
Family
Description
The SC5A is a 5-amp, full-featured, non-isolated DC-DC converter.
Designed for 12 V distributed power systems, the SC5A comes in a SIP
form factor to minimize board space and maximize power density. It
combines an industry-standard pin-out with a mounted height of only
0.5 inches. Using Bourns Switch Power's proprietary V2TM architecture with a
12 V input, the SC5A provides ultrafast transient response, improved line and
load regulation, and very high efficiency.
Common Specifications
Features
• 5-amp Output Current
• 94 % Efficiency
• Industry-standard Pin-out
• Low 0.5 " Profile
• Non-isolated Output
• Remote Sense
• Remote Enable
• Short-Circuit Protection
with Auto restart
• Trim Function
• Fast Transient Response
• High-temperature
Operation
• 60 W/in 3 Power Density
Min
Input
Voltage
Current
Remote Enable
High = Disable
Low = Enable
Current
9
12
2.4
Output
Current
0
Sense Compensation
Voltage Setpoint Accuracy
Voltage Trim Range
-10
Line Regulation
Load Regulation
Temp Regulation
Current Limit
6
Dynamic Response
0 to 100 % load
Patents 5,770,940
5,978,195
Nom Max
100 to 0 % load
±1.4
Temperature Regulation
General
MTBF
Operating Temperature
Storage Temperature
Switching Frequency
Vdc
A
10-16 V for SC5A-12S5
5.5
0.7
20
Vdc
Vdc
mA
Source 500 µA
Open=Enable
Disabled
5
50
±2.3
+10
A
mV
%Vnom
%Vnom
%Vnom
%Vnom
%Vnom/°C
A
mV
µs
mV
µs
±0.02 %Vout/°C
1,878
-25
-55
85
125
500
Notes
16
3
±0.2
±0.1
.005
200
19
200
19
Units
k Hrs
°C
°C
kHz
∆i/∆t = 3 A/µs
∆i/∆t = 3 A/µs
25°C, 80 % load, 100 lfm
Asia-Pacific: TEL +886- (0)2 25624117 • FAX +886- (0)2 25624116
Europe:
TEL +41-41 768 5555 • FAX +41-41 768 5510
The Americas: TEL +1-951 781 5500 • FAX +1-951 781-5700
Reliable Electronic Solutions
www.bourns.com
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
HDLV
SC5A SERIES
Family
Electrical Specifications
Nominal Output Output
Input
Voltage Current
(V)
(V)
(A)
SC5A-12S5
12
5.0
5
SC5A-12S3.3
12
3.3
5
SC5A-12S2.5
12
2.5
5
SC5A-12S1.8
12
1.8
5
Ripple
(mV pp)
typ
120
100
100
100
Efficiency
(%)
typ
93
90
88
85
Standard Options
Add option designators to the end of the part number. Example; SC5A-12S3.3-Z
Option
Description
Z
-40 °C Operation
0.37
(9.4)
2.53 (64.3)
0.135 ± .015
(3.43 ± 0.38)
0.023 (0.6)
typ pin width
7-8 Vin
1,2,4 Vout
3 Remote Sense 9 Trim
10 Enable
5-6 Ground
SC5A
Vout 1
Vout 2
Vout 4
7 Vin
8 Vin
100 µf
10 V
ESR<40 mΩ
Remote Sense 3
5 6
10
9
Enable
Trim
Vout
100 µf
10 V
ESR<65 mΩ
SC5A Trim Circuits
Vout
Trim
Gnd
Vout
Rdown
Trim
Gnd
40
Optional
Operating
Temp
100 lfm
20
0
-40
-30
-20
-10
0
50 60 70
Ambient Temperature (C)
95
95
90
85
80
75
10 Vin
12 Vin
15 Vin
70
65
1A
100
2A
3A
4A
Output Current
SC5A-12S2.5
Efficiency (%)
85
80
75
60
10 Vin
12 Vin
15 Vin
1A
2A
3A
4A
Output Current
100
90
85
80
75
10 Vin
12 Vin
15 Vin
70
60
1A
100
90
65
90
65
5A
95
70
80
SC5A-12S3.3
SC5A-12S5
100
60
Rdown (Ω) = [(1000Vout - 1300) * (R1+R2)] - (R1*R2)
1300 - 1000Vout + R1
R1*1690
Rup (Ω) =
-R
1300Vout - 1690 - 1.3R1 2
200 lfm
100
Rup
Vout = Desired output voltage
Vnom R1 (Ω) R2 (Ω)
5.0 3,740 10,000
3.3 2,000 4,120
2.5 1,210 2,550
1.8
499
432
60
Two output capacitors
recommended for
SC5A-12S5 to achieve
ripple < 70 mV.
Efficiency (%)
Vin
still air
80
Efficiency (%)
0.012 (0.3)
typ pin thickness
SC5A Temperature Derating
100
Efficiency (%)
6 7 8 9 10
0.10 (2.54)
1.40 (35.6)
0.28
Verify the values in circles
(7.2)
inches (mm)
0.xx ±0.01 inches
0.xxx ±0.005 inches
%Max Output
12345
0.13
(3.3)
0.48
(11.4)
5A
2A
3A
4A
Output Current
SC5A-12S1.8
5A
95
90
85
80
75
10 Vin
12 Vin
15 Vin
70
65
60
1A
2A
3A
4A
Output Current
5A
REV. 01/05
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.