LM2596T-12 National Semiconductor, LM2596T-12 Datasheet - Page 27
LM2596T-12
Manufacturer Part Number
LM2596T-12
Description
IC, STEP-DOWN VOLTAGE REGULATOR, TO220-5
Manufacturer
National Semiconductor
Datasheet
1.LM2596S-ADJNOPB.pdf
(31 pages)
Specifications of LM2596T-12
Input Voltage
40V
Output Current
3A
Output Voltage
12V
No. Of Outputs
1
No. Of Pins
5
Operating Temperature Range
-40°C To +125°C
Termination Type
Through Hole
Filter Terminals
Through Hole
Rohs Compliant
No
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LM2596T-12
Manufacturer:
HTC
Quantity:
20 000
Company:
Part Number:
LM2596T-12/NOPB
Manufacturer:
TOSHIBA
Quantity:
1 000
Application Information
INVERTING REGULATOR SHUTDOWN METHODS
To use the ON /OFF pin in a standard buck configuration is
simple, pull it below 1.3V (
turn regulator ON, pull it above 1.3V to shut the regulator
FIGURE 28. Inverting Regulator Ground Referenced Shutdown using Opto Device
@
25˚C, referenced to ground) to
FIGURE 27. Inverting Regulator Ground Referenced Shutdown
(Continued)
27
OFF. With the inverting configuration, some level shifting is
required, because the ground pin of the regulator is no
longer at ground, but is now setting at the negative output
voltage level. Two different shutdown methods for inverting
regulators are shown in Figure 27 and 28.
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