Series
SR7820
Low Cost, 2A 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.
Output
Parameter
Output Voltage Accuracy
Line Regulation
Conditions
Vin = Min to Max
Min.
Typ.
±2ꢀ.
±.ꢀꢁ ±.ꢀ7ꢁ
±.ꢀꢁ
2ꢁ
Max.
±±ꢀ.
Units
%
%
%
mV P - P
°C
mA
%/°C
µF
mA
W
Key Features:
• Efficiency to 92%
• 2A Output Current
• Compact SIP Case
• LM78xx Replacement
• Wide Input Range
• Short Circuit Protected
• Thermal Shutdown
• Low Noise
Load Regulation
Ripple & Noise (2. MHz)
Thermal Shutdown
Quiescent Current
Temperature Coefficient
Maximum Capacitive Load
Output Current Limit
Short Circuit Input Power
Output Short Circuit
General
Iout = 1.% to 1..%
±1ꢀ.
4ꢁ
See Note 2
See Note ±
1ꢁ.
ꢁ
1.
.ꢀ.±
1,...
ꢁ,...
.ꢀꢁ
1ꢀ8
Continuous (Autorecovery)
• Low Low Cost
Parameter
Conditions
Min.
Not Isolated
28.
Typ.
Max.
Units
Isolation Voltage
Switching Frequency
Environmental
Parameter
Operating Temperature Range
Operating Temperature Range
Storage Temperature Range
Lead Temperature
Cooling
±±.
4ꢁ.
kHz
Conditions
Min.
-4.
Typ.
+2ꢁ
Max.
+8ꢁ
+1..
+12ꢁ
±..
Units
°C
°C
°C
°C
Ambient
Case
-ꢁꢁ
1ꢀꢁ mm From Case For 1. Sec
Free Air Convection
RH, Non-condensing
Humidity
9ꢁ
%
Physical
Case Size
Case Material
Weight
.ꢀ4ꢁ x .ꢀ±ꢁ x .ꢀ69 Inches (11ꢀꢁ x 9ꢀ. x 17ꢀꢁ. mm)
Non-Conductive Black Plastic (UL-94V.)
.ꢀ1± Oz (±ꢀ7g)
Reliability Specifications
Parameter
Conditions
Min.
Typ.
Max.
Units
MTBF
MIL HDBK 217F, 2ꢁ°C, Gnd Benign
2ꢀ.
MHours
Typical Application Circuit
Component Values
Capacitors
Model
Number
C1, C3
C2, C4
(µF/V)
(µF/V)
SR782.-.1ꢁW
SR782.-.18W
SR782.-.2W
SR782.-.±W
SR782.-.ꢁW
SR782.-.6W
1. /2ꢁ
1. /2ꢁ
1. /2ꢁ
1. /2ꢁ
1. /2ꢁ
1. /2ꢁ
22 / 6ꢀ±
22 / 6ꢀ±
22 / 6ꢀ±
22 / 6ꢀ±
22 / 16
22 / 16
MicroPower Direct
292 Page Street
Suite D
Stoughton, MA .2.72
USA
T: (781) ±44-8226
F: (781) ±44-8481
E: sales@micropowerdirectꢀcom
W: wwwꢀmicropowerdirectꢀcom
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.
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