SR7810 Series
Low Cost, 1A Output
Non-isolated POL
Switching Regulators
Electrical Specifications
Specifications typical @ +25°C, nominal input voltage & rated output current, unless otherwise noted. Specifications subject to change without notice.
Key Features: Output
· Efficiency to 96% Parameter Conditions Min. Typ. Max. Units
· 1A Output Current Output Voltage Accuracy ±2.0 ±3.0 %
· Compact SIP Case
Line Regulation Vin = Min to Max ±0.2 ±0.4 %
· LM78xx Replacement
Load Regulation Iout = 10% to 100% ±0.4 ±0.6 %
· Wide Input Range
· Short Circuit Protected Ripple & Noise (20 MHz) 20 35 mV P - P
· Thermal Shutdown Dynamic Load Stability See Note 1 ±100 mV
· Low Noise Output Power Protection 120 %
· Low Low Cost
Thermal Shutdown See Note 2 150 °C
Positive Output 5 8
Quiescent Current, Note 3 mA
Negative Output 7 13
Temperature Coefficient 0.02 %/°C
Maximum Capacitive Load 1,000 µF
Output Current Limit 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
MicroPower Direct Cooling Free Air Convection
292 Page Street
Suite D Humidity RH, Non-condensing 95 %
Stoughton, MA 02072
USA Physical
Case Size 0.45 x 0.35 x 0.69 Inches (11.5 x 9.0 x 17.50 mm)
T: (781) 344-8226
F: (781) 344-8481 Case Material Non-Conductive Black Plastic (UL-94V0)
E: sales@micropowerdirect.com Weight 0.13 Oz (3.7g)
W: www.micropowerdirect.com
Reliability Specifications
Parameter Conditions Min. Typ. Max. Units
MTBF MIL HDBK 217F, 25°C, Gnd Benign 2.0 MHours
www.micropowerdirect.com Unterschleißheim
CompuMess Elektronik GmbH · Lise-Meitner-Str. 1 · D-85716
Telefon (089) 32 15 01 - 0 · Telefax (089) 32 15 01 - 11
info@compumess.de · www.compumess.de · www.netzteile.de
Model Selection Guide www.micropowerdirect.com
Input Output Notes:
Model Efficiency (%, Typ) 1. Dynamic load stability is specified for output loads from 10% to 100%.
Voltage Range Voltage Current 2. Measured at an internal IC junction.
Number Min Vin Max Vin
(VDC) (VDC) (mA, Max) 3. Quiescent current is specified at 0% load for Vin = min to max.
4.75 - 28.0 3.3 1,000.0 90 83 4. This regulator is not designed to be used in parallel with another unit to increase output power.
SR7810-03W 5. The input should not exceed the range given in the model selection chart. Exceeding this limit could
4.75 - 25.0 -3.3 -600.0 80 82 damage the unit.
6.5 - 32.0 5.0 1,000.0 93 88
SR7810-05W
7.0 - 27.0 -5.0 -600.0 85 87
Derating Curve
9.0 - 32.0 6.5 1,000.0 94 90
SR7810-06W
7.0 - 25.0 -6.5 -400.0 88 90
12.0 - 32.0 9.0 1,000.0 95 92
SR7810-09W
7.0 - 23.0 -9.0 -400.0 89 91
16.0 - 32.0 12.0 1,000.0 96 94
SR7810-12W
7.0 - 32.0 -12.0 -300.0 89 91
Typical Application Circuits
Pin Connection
Pin 1 2 3
Function +Vin Gnd +Vout
Mechanical Dimensions
Component Values
Model Ceramic Capacitors
Number C1, C3 C2, C4
SR7810-03W 10 µF/50V 22 µF/ 6.3V
SR7810-05W 10 µF/50V 22 µF/ 10V
SR7810-06W 10 µF/50V 10 µF/ 10V
SR7810-09W 10 µF/50V 10 µF/ 16V
SR7810-12W 10 µF/50V 10 µF/ 25V
Notes:
1. C1 & C3 are low ESR ceramic capacitors used to minimize noise a the regulator.
at
A tantalum or low ESR electrolytic capacitor may also be used.
2. C1 & C2 (and if used C3 & C4) are required and should be mounted as close to the
mounte
regulator pins as possible.
possible
Characteristic Curves (Efficiency & Ripple)
Efficiency vs Input Voltage (Full Load) Efficiency vs Load (Vin = Min) Efficiency vs Load (Vin = Max)
Ripple vs Input Voltage (Full Load) Ripple vs Load (Vin = Min) Ripple vs Load (Vin = 24V)
MicroPower Direct Notes:
· All dimensions are typical in inches (mm)
· Tolerance x.xx = ±0.01 (±0.25)
We Power Your Success - For Less! · Pin 1 is marked by a "dot" or indentation on the side of the unit
292 Page Street Ste D Stoughton, MA 02072 CompuMess Elektronik GmbH · (781) 344-8481 · 1 E-Mail: sales@micropowerdirect.com
· TEL: (781) 344-8226 · FAX: Lise-Meitner-Str. · D-85716 Unterschleißheim
Telefon (089) 32 15 01 - 0 · Telefax (089) 32 15 01 - 11
info@compumess.de · www.compumess.de · www.netzteile.de