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Manufacturer Part #

7803SRH-C

7803SR Series 3.3 V High-Efficiency Switching Regulators with LM78XX Pinout

Mfr. Name: Murata Power Solutions
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Product Specification Section
Technical Attributes
Attributes Table
Input Voltage: 7.5V to 36V
Mounting Method: Through Hole
Features & Applications

The 7803SR-C (3.3 V output) step-down switching regulator is a modern drop-in replacement for older, ineffi cient, LM7805 and LM7812 linear regulators.

The 78XXSR's are pin- and size-compatible with industry-standard TO-220 SIP packages. A 260 kHz switching frequency provides for effi ciencies as high as 95%. Full-load (up to 0.5A) operation from 9 V, 12 V, 24 V, or 36 V supplies at ambient temperatures up to +70° C requires no heat sinks, no temperature derating, no forced-air cooling, and no external capacitors. 78SR switching regulators provide many signifi cant improvements over their linear counterparts: lower quiescent current (3 mA vs. 5 mA), higher input voltage (40 V vs. 32 V), and better output accuracy (±2% vs. ±5%). All these features combine to make 78SR regulators ideal for new or existing LM7805 & LM7812 applications requiring full-load operation at elevated voltages.

Features:

  • 3.3 V/0.5 A, 5 V/0.5 A or 12 V/0.4 A outputs; Pin and size-compatible with LM7805 & LM7812 regulators
  • Up to 95% effi ciency – no heat sinks or thermal derating required
  • Two SIP-packages fi t existing TO-220 footprints:
  • Vertical-pin models occupy less than 0.1 square in.
  • Optional horizontal pins provide 0.350 in. installed height
  • +7.5-36 Vdc operating input range; Low 3 mA quiescent current
  • Built-in fi lter capacitors – no external components required
  • –40 to +70° C operation at full load; Short-circuit protection
  • Excellent load (±0.2%) and line (±0.3%) regulation Ideal for powering instrumentation from
  • 9 V/12 V/24 V/28 V supplies or batteries Can be used with unregulated dc supplies protection

 

 

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100
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Total
$909.00
USD
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Quantity
Web Price
1
$9.94
5
$9.69
25
$9.27
50
$9.09
150+
$8.82
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