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N2576G-3.3 PDF даташит

Спецификация N2576G-3.3 изготовлена ​​​​«Niko» и имеет функцию, называемую «Step-Down Switching Voltage Regulator».

Детали детали

Номер произв N2576G-3.3
Описание Step-Down Switching Voltage Regulator
Производители Niko
логотип Niko логотип 

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N2576G-3.3 Даташит, Описание, Даташиты
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NIKO-SEM
52 KHz 3A Step-Down
Switching Voltage Regulator (SVR)
N2576G-3.3
TO-220, TO263
Lead-Free
GENERAL DESCRIPTION
The N2576G 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 N2576G 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 N2576G 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
l Pin compatible with industry products of
LM2576G Series
l Fixed 3.3V output version
l Wide output voltage range, 1.23V to 27V
for adjustable output version
l DC-to-DC buck converter requiring only 4
external parts
l 52 KHz fixed frequency internal oscillator
l TTL shutdown capability, low power stand
-by mode
l High efficiency
l Uses readily available standard inductors
APPLICATIONS
l Simple high-efficiency step-down (buck)
regulator
l Positive to negative converter (Inverting
Buck-Boost)
l Isolated Fly back Converter using mini-
mum number of external parts
l Powering portable instrument, Set-Top
Box, LCD Monitor, Scanner, I.A, Easy PC
l SMPS Post-Regulator
TYPICAL APPLICATION
8V - 27V
Unregulated
DC Input
+Vin 1
N2576
3
Gnd
Cin
100uF
5
On/Off
4 Feedback
2 Output L1
100uH
D1
1N5822
+3.3V,3A
Regulated
Output
Cout
1000uF
1 Feb-02-2005









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N2576G-3.3 Даташит, Описание, Даташиты
NIKO-SEM
52 KHz 3A Step-Down
Switching Voltage Regulator (SVR)
N2576G-3.3
TO-220, TO263
Lead-Free
ABSOLUTE MAXIMUM RATINGS
l Maximum Supply Voltage
l ON/OFF Pin Input Voltage
l Output Voltage to Ground
(Stead State)
l Power Dissipation
l Thermal Resistance
Junction to Case, θJC
30V
-0.3V+VI
-1V
Internally
Limited
2.0°C/W
l Thermal Resistance
Junction to Ambient, θJA
TO-220
TO-263
l Operating Junction
Temperature Range
l Storage Temperature
Range
l Lead Temperature
(Soldering, 10 Seconds)
50°C/W
60°C/W
-40 to 125°C
-65 to 150°C
260°C
ELECTRICAL CHARACTERISTICS (Unless otherwise specified, TA = 25°C.)
Parameter Symbol
Test Conditions
Output Voltage
Output Voltage
Efficiency
Oscillator
Frequency
Saturation Voltage
Current Limit
ON/OFF Pin Logic
Input Level
ON/OFF Pin Logic
Input Current
VOUT
VOUT
FOSC
VSAT
ICL
VIH
VIL
IIH
IIL
VIN = 12V
ILOAD = 0.5A
8V VIN 27V
0.5A ILOAD 3A
VIN = 12V, VOUT = 3.3V
IOUT = 3A
IOUT = 3A
VOUT = 0V
VOUT = Nominal Output Voltage
ON/OFF Pin = 5V (OFF)
ON/OFF Pin = 0V (ON)
Typical
Limits
3.3V
3.3V
75%
52 KHz
1.4V
6.0A
1.4V
1.2V
12µA
0µA
3.234VMin
3.366VMax
3.168VMin
3.450VMax
47 KHz (Min)
58 KHz (Max)
1.8VMax
4.0A ~ 7.0A
2.2V (Min)
1.0V (Max)
30µA (Max)
10µA (Max)
REMARK: Orders for parts with Lead-Free plating can be placed using the N2576XG-3.3 parts name.
2 Feb-02-2005









No Preview Available !

N2576G-3.3 Даташит, Описание, Даташиты
NIKO-SEM
52 KHz 3A Step-Down
Switching Voltage Regulator (SVR)
N2576G-3.3
TO-220, TO263
Lead-Free
DEVICE SELECTION GUIDE
Device
Voltage (V)
Current(A)
Package
Marking
N2576SG-3.3 N2576TG-3.3
3.3 3.3
3
TO-263
TO-220
N2576SG-3.3 N2576TG-3.3
PIN CONFIGURATIONS
5 -LEAD TO-220 (T)
5 - On/Off
4 - Feedback
3 - Ground
2 - Output
1 - Vin
5 -LEAD TO-263 (S)
5 - On/Off
4 - Feedback
3 - Ground
2 - Output
1 - Vin
3 Feb-02-2005










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Номер в каталогеОписаниеПроизводители
N2576G-3.3Step-Down Switching Voltage RegulatorNiko
Niko

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