21-Jan-11
0.46
(11.68)
0.38
(9.65)
0.02
(0.50)
0.02
(0.50)
0.02
(0.50)
0.08
(2.00)
0.29
(7.50)
0.29
(7.50)
0.10
(2.54)
0.20
(5.08)
0.16
(4.10)
1 2 3
0.01
(0.25)
Printed
Face
0.40
(10.16)
0.51 Amps
• 3 Pin SIP 3T Switching Regulator
• Wide Input Range
• Continuous Shortcircuit Protection
• Pin Compatible with LM78MXX
• Efficiency up to 97%
• 40 °C to +85 °C Operating Temperature
• 3 Year Warranty
SR Series
xppower.com
Input
Input Voltage Range • See table
Input Current • See table
Input Reflected Ripple • SR05: 35 mA pk-pk, SR10: 40 mA pk-pk,
through 12 µH inductor, 5 Hz to 20 MHz
Input Filter • External capacitor (see application notes)
Output
Output Voltage • See table
Minimum Load • No minimum load required
Line Regulation • ±0.5% max
Load Regulation • ±0.6% from 10% to 100% load
Setpoint Accuracy • ±2%
Turn-on Time • See note 6
Ripple & Noise • 60 mV pk-pk with 10% minimum load,
20 MHz bandwidth
Maximum Capacitive • 220 µF
Load
Short Circuit Protection • Indefinite (automatic recovery)
Temperature Coefficient • 0.02%/˚C
General
Efficiency • See table
Isolation Voltage • Non-isolated
Switching Frequency • 330 kHz typical
Package Style • 3 pin SIP
MTBF • >4.5 MHrs to MIL-HDBK-217F at 25 °C, GB
Environmental
Operating Temperature • SR05: -40 °C to +85 °C,
SR10: -40 °C to +60 °C,
Operating Humidity • 95% RH
Case Temperature • +100 °C max
Storage Temperature • -40 °C to +125 °C
Cooling • Convection-cooled
1. All dimensions in inches (mm)
2. Weight: 0.004 lbs (1.8 g)
3. Pin pitch tolerance: ±0.014 (±0.35)
4. Case tolerance: ±0.02 (±0.5)
5. Efficiency range given for maximum Vin to minimum Vin
6. For maximum reliability, ensure turn on time is >1 ms by placing a 47 µF
capacitor between +Vin and GND
Input
Voltage
No Load
Input
Current
Output
Voltage
Output
Current
Efficiency
(5)
Model Number
4.75-34 VDC
10 mA
1.5 V 500 mA
64-79%
SR05S1V5
4.75-34 VDC
10 mA
1.8 V 500 mA
66-82%
SR05S1V8
4.75-34 VDC
10 mA
2.5 V 500 mA
72-87%
SR05S2V5
4.75-34 VDC
10 mA
3.3 V 500 mA
77-91%
SR05S3V3
6.50-34 VDC
10 mA
5.0 V 500 mA
83-94%
SR05S05
8.00-34 VDC
10 mA
6.5 V 500 mA
85-95%
SR05S6V5
9.00-34 VDC
10 mA
7.2 V 500 mA
86-95%
SR05S7V2
11.00-34 VDC
10 mA
9.0 V 500 mA
88-96%
SR05S09
15.00-34 VDC
10 mA
12.0 V 500 mA
91-96%
SR05S12
18.00-34 VDC
10 mA
15.0 V 500 mA
92-97%
SR05S15
4.75-18 VDC
15 mA
1.5 V 1000 mA
71-78%
SR10S1V5
4.75-18 VDC
15 mA
1.8 V 1000 mA
75-82%
SR10S1V8
4.75-18 VDC
15 mA
2.5 V 1000 mA
80-87%
SR10S2V5
4.75-18 VDC
15 mA
3.3 V 1000 mA
83-90%
SR10S3V3
6.50-18 VDC
15 mA
5.0 V 1000 mA
88-93%
SR10S05
Mechanical Details
Pin Connections
Pin Function
1 +Vin
2 GND
3 +Vout
Application Notes
Input Filer to meet Class B Conducted Emissions
DC / DC Converter
GND
+Vin +Vout
C1
L1
+
-
C2
Load
C1 L1 C2
470 µF, 35 V 6.4 µH 470 µF, 35 V
Specification
DCDC
Notes
