
Powersolve Electronics Ltd. 8A Arnhem Road, Newbury, RG14 5RU. England
Tel: 01635 521858 Fax: 01635 523771 Email: sales@powersolve.co.uk
www.powersolve.co.uk
DC-DC Switching Regulator
Output Voltage and Current Ratings
Mechanical and Connection Details
Pin Function
1 +Vout
2 +Vout
3 +Sense
4 +Vout
5 Common
6 Common
7 +Vin
8 +Vin
9 No Pin
10 Trim
11 On/Off Control
All Dimensions in Inches (mm).
Tolerance: Inches x.xx ±0.02 x.xxx ±0.010
Millimeters x.x ±0.5 x.xx ±0.25
SR10-12-33SM Derating CurveSR10-12-33TH Derating Curve
SIP Packages
SMT Packages
BOTTOM VIEW OF BOARD
Simplified Schematic
External Resistor Values for
Programming Output Voltage
Vo set (V) Rtrim (KΩ)
0.75 Open
1.2 22.33
1.5 13.0
1.8 9.0
2.0 7.4
2.5 5.0
3.3 3.12
5.0 1.47
Add Suffix “W” for Adjustable Output
MODEL INPUT OUTPUT OUTPUT INPUT CURRENT % EFF.
VOLTAGE VOLTAGE CURRENT No Load Full Load
SR10-12-10 9.0 - 14VDC 1.0VDC 10A 50mA 992mA 84%
SR10-12-12 9.0 - 14VDC 1.2VDC 10A 50mA 1163mA 86%
SR10-12-15 9.0 - 14VDC 1.5VDC 10A 50mA 1404mA 89%
SR10-12-18 9.0 - 14VDC 1.8VDC 10A 60mA 1666mA 90%
SR10-12-20 9.0 - 14VDC 2.0VDC 10A 60mA 1832mA 91%
SR10-12-25 9.0 - 14VDC 2.5VDC 10A 60mA 2264mA 92%
SR10-12-33 9.0 - 14VDC 3.3VDC 10A 70mA 2956mA 93%
SR10-12-05 9.0 - 14VDC 5.0VDC 10A 70mA 4385mA 95%
SR10-12-05W 8.3 - 14VDC 0.75 - 5VDC 10A 70mA 2956mA 93%@3.3V
Nominal Input Voltage 12VDC.
Add suffix “TH” for SIP Package or “SM” for SMT Package.
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