LM2576T-15 National Semiconductor, LM2576T-15 Datasheet - Page 10
![SWITCHING REG 3A 15V, 2576, TO2205](/photos/19/7/190790/42334036_sml.jpg)
LM2576T-15
Manufacturer Part Number
LM2576T-15
Description
SWITCHING REG 3A 15V, 2576, TO2205
Manufacturer
National Semiconductor
Datasheet
1.LM2576T-ADJ.pdf
(24 pages)
Specifications of LM2576T-15
Output Voltage
15V
Voltage Regulator Case Style
TO-220
No. Of Pins
5
Operating Temperature Range
-40°C To +125°C
Svhc
No SVHC (15-Dec-2010)
Operating Temperature Max
125°C
Operating
RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LM2576T-15
Manufacturer:
NS
Quantity:
882
Part Number:
LM2576T-15/NOPB
Manufacturer:
TI/德州仪器
Quantity:
20 000
Company:
Part Number:
LM2576T-15G
Manufacturer:
IPS
Quantity:
4 500
www.national.com
Test Circuit and Layout Guidelines
As in any switching regulator, layout is very important. Rap-
idly switching currents associated with wiring inductance
generate voltage transients which can cause problems. For
minimal inductance and ground loops, the length of the leads
indicated by heavy lines should be kept as short as possible.
C
C
D
L
R
R
where V
1
IN
OUT
1
1
2
— 100 µH, Pulse Eng. PE-92108
— Schottky, MBR360
— 2k, 0.1%
— 6.12k, 0.1%
— 100 µF, 75V, Aluminum Electrolytic
— 1000 µF, 25V, Aluminum Electrolytic
REF
= 1.23V, R1 between 1k and 5k.
Adjustable Output Voltage Version
Fixed Output Voltage Versions
FIGURE 2.
10
Single-point grounding (as indicated) or ground plane con-
struction should be used for best results. When using the
Adjustable version, physically locate the programming resis-
tors near the regulator, to keep the sensitive feedback wiring
short.
01147607
01147608