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7805SR Datasheet(PDF) 2 Page - List of Unclassifed Manufacturers

Part # 7805SR
Description  3.3V/5V/12V Outputs High-Effi ciency Switching Regulators with LM78XX Pinouts
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HIGH-EFFICIENCY SWITCHING REGULA T ORS
78SR Series
2
DATEL, Inc., Mansfield, MA 02048 (USA)
• Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356 • E–mail: sales@datel.com • Internet: www.datel.com
Input/Output
Models
7803SR
7805SR
7812SR
Output Voltage
+3.3Vdc
+5.0Vdc
+12.0Vdc
Rated Output Current
0.5A
0.5A
0.4A
Output Voltage Accuracy
±2%
±1.5%
±2%
Input Voltage Range
+7.5-36Vdc
+7.5-36Vdc
+15-36Vdc
Line Regulation (100% load)
±0.3%
±0.3%
±0.3%
Load Regulation (0-100% load)
±0.2%
±0.2%
±0.2%
Quiescent Current
3mA typ., 5mA max.
Input Current
See Performance Curves
Efficiency
See Performance Curves
Transient Response
See Performance Curves
Input & Output Noise
See Performance Curves
Short Circuit Protection
Continuous
Isolation
None
Overvoltage Protection
None
Undervoltage Protection
None
Environmental
Models
7803SR
7805SR
7812SR
Operating Temperature
–40 to +70°C
Storage Temperature
–40 to +85°C
Cooling
Free Air Convection
Humidity (Non-condensing)
0 to 85%
Physical
Mechanical
See Mechanical Specifications
Package
Open-frame SIP
Pins
0.025” (0.64mm) square,
tin-plated bronze
Weight
0.08 ounces (2.2g)
Pin Soldering
+260°C for 5 seconds
➀ See Technical Note 5.
➁ While these regulators can withstand a continuous short-circuit across their
output terminals, they will experience a significant temperature rise. Extended
short-circuit operation will adversely affect the unit’s reliability.
of the pc-board. However, because the surface of inductor L1 on
78XXSRH models is electrically conductive, it must not be allowed to
come in contact with any exposed pc-board traces, other than power
ground (GND).
While the 2-mil-thick (0.05mm) polyester label attached to L1 provides
some degree of electrical insulation (only if L1 sits perfectly flat on
the pc-board), it is recommended that a 0.020” (0.5mm) clearance be
maintained between L1 and all exposed pc-board traces.
8. Dropout Voltage: 78SR series regulators described in this data sheet
specify a minimum input voltage at which full-load accuracy and output
regulation are guaranteed (7.5V for 7803SR and 7805SR, and 15.0V
for 7812SR). However, these devices will stay in regulation at lower
input voltages if they are operated at less than their rated loads.
The following dropout-voltage data, derived from sample testing per-
formed at an ambient temperature of +25°C with resistive loads, should
be used for information purposes only. For these tests, a unit was
considered to be out of regulation when its output changed by more
+/-0.005Vdc from its nominal value. All voltages were measured directly
at the regulator’s I/O pins.
0% Load
25% Load
50% Load
100% Load
7803SR
6.0V
6.2V
6.2V
6.3V
7805SR
6.3V
6.2V
6.2V
6.8V
7812SR
12.8V
13.0V
12.8V
13.0V
Typical Dropout Voltage
Technical Notes (continued)
DATEL Part No.
Output Voltage
Output Current
Input Voltage
Standard Pin Package
7803SR
+3.3Vdc
0.5A
+7.5-36Vdc
7805SR
+5.0Vdc
0.5A
+7.5-36Vdc
7812SR
+12.0Vdc
0.4A
+15-36Vdc
Horizontal Pin Package
7803SRH
+3.3Vdc
0.5A
+7.5-36Vdc
7805SRH
+5.0Vdc
0.5A
+7.5-36Vdc
7812SRH
+12.0Vdc
0.4A
+15-36Vdc
Ordering Information
Performance/Functional Specifications
Typical at TA = +25°C


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