LSR7810 Datasheet, PDF (1/2 Pages) MicroPower Direct, LLC – Effi ciency to 93%

LSR7810 ^Series
Low Cost, Miniature
1.0A Surface Mount
POL Switching Regulators
Key Features:
• Efficiency to 93%
• 1.0A Output Current
• Compact SMT Case
• LM78xx Replacement
• Wide Input Range
• Remote ON/OFF Control
• Adjustable Output Voltage
• Short Circuit Protected
• Thermal Shutdown
• Low Noise
• Low Low Cost
Electrical Specifications
Specifications typical @ +25°C, nominal input voltage & rated output current, unless otherwise noted. Specifications subject to change without notice.
Output
Parameter
Conditions
Min. Typ. Max. Units
Output Voltage Accuracy
±2.0 ±3.0
%
Output Voltage Adjustment Range
Contact Factory For Information
Line Regulation
VIN = Min to Max
±0.2 ±0.5
%
Load Regulation
IOUT = 10% to 100%
±0.4 ±1.0
%
Ripple & Noise (20 MHz)
See Output Filter Circuit (Page 2)
20
10
35
15
mV P - P
Thermal Shutdown
See Note 1
150
°C
Temperature Coefficient
0.02
%/°C
Maximum Capacitive Load
1,000
µF
Output Current Limit
1.8
A
Output Short Circuit
Hiccup Mode, Continuous (Autorecovery)
General
Parameter
Conditions
Min. Typ. Max. Units
Isolation Voltage
Not Isolated
Switching Frequency
1.40
MHz
Remote On/Off
Parameter
Conditions
Min. Typ. Max. Units
Supply On
Supply Off
See Note 2 ^1.2
6.0
VDC
0.6
VDC
ON/OFF Control Current
100 200
µA
Standby Input Current
120 200
µA
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
260
°C
Derating
Over 71°C, derate output power 2.85%/°C to 60% at 85°C
Cooling
Free Air Convection
Humidity
RH, Non-condensing
95
%
Physical
Case Size
See Mechanical Diagram (Page 2)
Case Material
Non-Conductive Black Plastic (UL-94V0)
Weight
0.08 Oz (2.3g)
Reliability Specifications
Parameter
Conditions
Min. Typ. Max. Units
MTBF
MIL HDBK 217F, 25°C, Gnd Benign 1.0
MHours
Characteristic Curves
MicroPower Direct
292 Page Street
Suite D
Stoughton, MA 02072
USA
T: [phone]
F: [phone]
E: [e-mail]
W: www.micropowerdirect.com
Efficiency vs Load (VIN=Nom)
Ripple vs Load (VIN = Nom)
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