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PDF N2576G Data sheet ( Hoja de datos )
| Número de pieza | N2576G | |
| Descripción | Step-Down Switching Voltage Regulator | |
| Fabricantes | Niko | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de N2576G (archivo pdf) en la parte inferior de esta página. Total 5 Páginas | ||
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NIKO-SEM
52 KHz 3A Step-Down
N2576G
Switching Voltage Regulator (SVR) TO-263, TO220
GENERAL DESCRIPTION
The N2576 Series switching voltage
regulators (SVR) are monolithic integrated
circuits that provide all the active functions
for a step-down (buck) switching regulator,
Both series are capable of driving
3 A load respectively with excellent line and
load regulation.
The N2576 Series SVR include a switching
regulator and compensation network all
within the same package. Just add a choke,
catch diode and two capacitors to obtain an
efficient DC-to-DC converter. The output
switch includes cycle-by-cycle current limit
-ing, as well as thermal shutdown for full
protection under fault conditions.
The N2576 Series SVR offer replacement
for popular 3 terminal linear regulators by
providing higher efficiency with reduced
heat sink size. In many applications a heat
sink will not be required.
FEATURES
z Pin compatible with industry products of
LM2576 Series
z Adjustable output versions
z Wide output voltage range, 1.23V to 27V
for adjustable output version
z DC-to-DC buck converter requiring only 4
external parts
z 52 KHz fixed frequency internal oscillator
z TTL shutdown capability, low power stand
-by mode
z High efficiency
z Uses readily available standard inductors
APPLICATIONS
z Simple high-efficiency step-down (buck)
regulator
z Positive to negative converter (Inverting
Buck-Boost)
z Isolated Fly back Converter using mini-
mum number of external parts
z Powering portable instrument, Set-Top
Box, LCD Monitor, Scanner, I.A, Easy PC
z SMPS Post-Regulator
TYPICAL APPLICATION
8V - 27V
Unregulated
DC Input
1
+Vin
N2576
Cin
100uF
+
3
Gnd
5
On/Of f
4 Feedback
Output
2
L1
100uH
D1
1N5822
+
Cout
1000uF
+5V, 3A
Regulated
Output
R1
6.18K
R2
2K
* VOUT = 1.23V ( 1 + R1 / R2)
Adjustable Regulator in Fixed Output Application
1
MAY-03-2004
1 page  
NIKO-SEM
52 KHz 3A Step-Down
N2576G
Switching Voltage Regulator (SVR) TO-263, TO220
TO-263 (D2PAK, 5-Lead) MECHANICAL DATA
mm mm
Dimension Min. Typ. Max. Dimension Min. Typ. Max.
A 15.11
15.47
H
1.0
1.4
B 4.0
4.8 I 9.78
10.54
C 1.142
1.4 J 6.6
7.11
D 2.8 K 1.5
E 0.356
0.639 L 0.762
1.01
F -0.102
0.203
M
0.98
1.05
G 8.636
9
9.65
N
5 MAY-03-2004
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet N2576G.PDF ] | |
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