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LM7805 Datasheet(PDF) 15 Page - Texas Instruments

Part No. LM7805
Description  1.5-A Fixed Voltage Regulators
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
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LM7805 Datasheet(HTML) 15 Page - Texas Instruments

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0.1 PF
0.22 PF
OUTPUT
INPUT
GND
VO
VI
0.1 PF
0.22 PF
OUTPUT
INPUT
GND
VO
VI
15
LM340, LM340A, LM7805, LM7812, LM7815
www.ti.com
SNOSBT0K – FEBRUARY 2000 – REVISED JULY 2016
Product Folder Links: LM340 LM340A LM7805 LM7812 LM7815
Submit Documentation Feedback
Copyright © 2000–2016, Texas Instruments Incorporated
Typical Applications (continued)
8.2.1.2 Detailed Design Procedure
The output voltage is set based on the device variant. LM340x and LM78xx are available in 5-V, 12-V and 15-V
regulator options.
8.2.1.3 Application Curve
Figure 19. VOUT vs VIN, VOUT = 5 V
8.3 System Examples
IOUT = V2–3 / R1 + IQ
ΔIQ = 1.3 mA over line and load changes.
VOUT = 5 V + (5 V/R1 + IQ) R2 5 V/R1 > 3 IQ,
load regulation (Lr) ≈ [(R1 + R2)/R1] (Lr of LM340-5).
Figure 20. Current Regulator
Figure 21. Adjustable Output Regulator
Figure 22. High Input Voltage Circuit With Series
Resistor
Figure 23. High Input Voltage Circuit
implementation With Transistor


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