LSR7805
Series
Low Cost, Miniature
500 mA Surface Mount
POL Switching Regulators
Electrical Specifications
Specifications typical @ +25°C, nominal input voltage & rated output current, unless otherwise noted. Specifications subject to change without notice.
Output
Key Features:
•
Efficiency to 96%
•
0.5A Output Current
•
Compact SMT Case
•
LM78xx Replacement
•
Wide Input Range
•
Adjustable Output Voltage
•
Short Circuit Protected
•
Thermal Shutdown
•
Low Noise
•
Low Low Cost
Parameter
Output Voltage Accuracy
Output Voltage Adjustment Range
Line Regulation
Load Regulation
Ripple & Noise (20 MHz)
Thermal Shutdown
Quiescent Current, Note 3
Temperature Coefficient
Maximum Capacitive Load
Output Current Limit
Short Circuit Input Power
Output Short Circuit
Conditions
Typ.
Max.
±2.0
±3.0
Contact Factory For Information
Vin = Min to Max
±0.2
±0.5
Iout = 10% to 100%
±0.3 ±0.75
10
25
See Note 2
160
15
0.02
1,000
1.8
0.5
1.8
Continuous (Autorecovery)
Min.
Not Isolated
Typ.
410
Max.
Min.
Units
%
%
%
mV P - P
°C
mA
%/°C
µF
A
W
General
Parameter
Isolation Voltage
Switching Frequency
Conditions
Units
kHz
Max.
+85
+100
+125
300
95
Units
°C
°C
°C
°C
%
Environmental
Parameter
Operating Temperature Range
Operating Temperature Range
Storage Temperature Range
Lead Temperature
Cooling
Humidity
Conditions
Ambient
Case
Min.
-40
Typ.
+25
-55
1.5 mm From Case For 10 Sec
Free Air Convection
RH, Non-condensing
Physical
Case Size
Case Material
Weight
0.60 x 0.476 x 0.285 Inches (15.24 x 12.10 x 7.25 mm)
Non-Conductive Black Plastic (UL-94V0)
0.08 Oz (2.3g)
Conditions
MIL HDBK 217F, 25°C, Gnd Benign
Min.
2.0
Typ.
Max.
Units
MHours
Reliability Specifications
Parameter
MTBF
Typical Application Circuits
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
Component Values
Model
Number
LSR7805-03W
LSR7805-05W
LSR7805-09W
LSR7805-12W
LSR7805-15W
Ceramic Capacitors
C
1
C
2
10
µF/50V
22
µF/
16V
10
µF/50V
22
µF/
16V
10
µF/50V
22
µF/
16V
10
µF/50V
10
µF/
25V
10
µF/50V
10
µF/
25V
Notes:
1. C1 & C2 are low ESR ceramic capacitors 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. C3 is required for optimum
performance, use 100
µF
OR more.
3. R1 & R2 are used to adjust the regulator output. For sug-
gested values, please contact the factory.
www.micropowerdirect.com
MPD [ MICROPOWER DIRECT, LLC ]
