Key Features:
• Effi ciency to 96%
• 1A Output Current
• Compact SIP Case
• LM78xx Replacement
• Wide Input Range
• Short Circuit Protected
• Thermal Shutdown
• Low Noise
• Low Low Cost
SR7810
Low Cost, 1A Output
Non-isolated POL
Switching Regulators
Output
Parameter Conditions Min. Typ. Max. Units
Output Voltage Accuracy ±2.0 ±3.0 %
Line Regulation Vin = Min to Max ±0.2 ±0.4 %
Load Regulation Iout = 10% to 100% ±0.4 ±0.6 %
Ripple & Noise (20 MHz) 25 35 mV P - P
Thermal Shutdown See Note 2 150 °C
Quiescent Current See Note 3 5 8 mA
Temperature Coeffi cient 0.02 %/°C
Maximum Capacitive Load 1,000 µF
Output Current Limit See Note 4 2,000 mA
Short Circuit Input Power 0.5 1.8 W
Output Short Circuit Continuous (Autorecovery)
General
Parameter Conditions Min. Typ. Max. Units
Isolation Voltage Not Isolated
Switching Frequency 280 330 450 kHz
Environmental
Parameter Conditions Min. Typ. Max. Units
Operating Temperature Range Ambient -40 +25 +85 °C
Operating Temperature Range Case +100 °C
Storage Temperature Range -55 +125 °C
Lead Temperature 1.5 mm From Case For 10 Sec 300 °C
Cooling Free Air Convection
Humidity RH, Non-condensing 95 %
Physical
Case Size 0.45 x 0.35 x 0.69 Inches (11.5 x 9.0 x 17.50 mm)
Case Material Non-Conductive Black Plastic (UL-94V0)
Weight 0.13 Oz (3.7g)
Reliability Specifi cations
Parameter Conditions Min. Typ. Max. Units
MTBF MIL HDBK 217F, 25°C, Gnd Benign 2.0 MHours
Series
MicroPower Direct
292 Page Street
Suite D
Stoughton, MA 02072
USA
T: (781) 344-8226
F: (781) 344-8481
E: sales@micropowerdirect.com
W: www.micropowerdirect.com
Electrical Specifi cations
Specifi cations typical @ +25°C, nominal input voltage & rated output current, unless otherwise noted. Specifi cations subject to change without notice.
www.micropowerdirect.com
Typical Application Circuit
Notes:
1. C1 is a low ESR ceramic capacitor used to minimize noise at the regulator.
A tantalum or low ESR electrolytic capacitor may also be used.
2. C1 & C2 are required and should be mounted as close to the regulator pins as possible.
Component Values
Model
Number
Capacitors
C1
(µF/V)
C2
(µF/V)
SR7810-015W 10 /50 22 / 6.3
SR7810-018W 10 /50 22 / 6.3
SR7810-02W 10 /50 22 / 6.3
SR7810-03W 10 /50 22 / 6.3
SR7810-05W 10 /50 22 / 16
SR7810-06W 10 /50 10 / 16
SR7810-09W 10 /50 10 / 16
SR7810-12W 10 /50 10 / 25
SR7810-15W 10 /50 10 / 25
