LM2575HVT-15 National Semiconductor, LM2575HVT-15 Datasheet - Page 12
![IC, STEP-DOWN REGULATOR, TO-220-5](/photos/18/98/189891/4243351_sml.jpg)
LM2575HVT-15
Manufacturer Part Number
LM2575HVT-15
Description
IC, STEP-DOWN REGULATOR, TO-220-5
Manufacturer
National Semiconductor
Datasheet
1.LM2575HVT-15.pdf
(28 pages)
Specifications of LM2575HVT-15
Primary Input Voltage
30V
No. Of Outputs
1
Output Voltage
15V
Output Current
1A
No. Of Pins
5
Operating Temperature Range
-40°C To +125°C
Supply Voltage Range
4V To 60V
Dc To Dc Converter Type
Inverting/Step Down
Number Of Outputs
1
Pin Count
5 +Tab
Input Voltage
60V
Switching Freq
58KHz
Efficiency
88%
Package Type
TO-220
Output Type
Fixed
Switching Regulator
Yes
Mounting
Through Hole
Input Voltage (min)
4V
Operating Temperature Classification
Automotive
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LM2575HVT-15/NOPB
Manufacturer:
HAMAMAT
Quantity:
5 600
www.national.com
Test Circuit and Layout Guidelines
As in any switching regulator, layout is very important. Rapidly
switching currents associated with wiring inductance gener-
ate voltage transients which can cause problems. For minimal
inductance and ground loops, the length of the leads indicated
C
C
D1 — Schottky, 11DQ06
L1 — 330 μH, PE-52627 (for 5V in, 3.3V out, use 100 μH, PE-92108)
where V
R1 — 2k, 0.1%
R2 — 6.12k, 0.1%
Note: Pin numbers are for the TO-220 package.
IN
OUT
— 100 μF, 75V, Aluminum Electrolytic
— 330 μF, 25V, Aluminum Electrolytic
REF
= 1.23V, R1 between 1k and 5k.
Adjustable Output Voltage Version
Fixed Output Voltage Versions
FIGURE 2.
12
by heavy lines should be kept as short as possible. Single-
point grounding (as indicated) or ground plane construction
should be used for best results. When using the Adjustable
version, physically locate the programming resistors near the
regulator, to keep the sensitive feedback wiring short.
1147508
1147509