Voltage Regulator. N2596G-5 Datasheet

N2596G-5 Regulator. Datasheet pdf. Equivalent

Part N2596G-5
Description Step-Down Switching Voltage Regulator
Feature NIKO-SEM 150 KHz 3A Step-Down Switching Voltage Regulator (SVR)-Preliminary N2596G-5 TO-220, TO263.
Manufacture NIKO-SEM
Datasheet
Download N2596G-5 Datasheet



N2596G-5
NIKO-SEM
150 KHz 3A Step-Down Switching
Voltage Regulator (SVR)-Preliminary
N2596G-5
TO-220, TO263
GENERAL DESCRIPTION
The N2596 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 N2596 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 N2596 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.
TYPICAL APPLICATION
FEATURES
z Pin compatible with industry products of
LM2596 Series
z Fixed 5V output version
z Wide output voltage range, 1.23V to 27V
for adjustable output version
z DC-to-DC buck converter requiring only 4
external parts
z150 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
8V - 27V
Unregulated
DC Input
1
+Vin
N2596
35
Gnd On/Off
Cin +
100uF
Feedback
4
Output
2
L1
47uH
D1
1N5822
+5V, 3A
Regulated
Output
+
Cout
1000uF
1 MAY-03-2004



N2596G-5
NIKO-SEM
150 KHz 3A Step-Down Switching
Voltage Regulator (SVR)-Preliminary
N2596G-5
TO-220, TO263
ABSOLUTE MAXIMUM RATINGS
z Maximum Supply Voltage
z ON/OFF Pin Input Voltage
z Output Voltage to Ground
(Stead State)
z Power Dissipation
z Thermal Resistance
Junction to Case, θJC
30V
-0.3V+VI
-1V
Internally
Limited
2.0°C/W
z Thermal Resistance
Junction to Ambient, θJA
TO-220
TO-263
z Operating Junction
Temperature Range
z Storage Temperature
Range
z 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
Output Voltage
Output Voltage
Efficiency
Oscillator
Frequency
Saturation Voltage
Current Limit
ON/OFF Pin Logic
Input Level
ON/OFF Pin Logic
Input Current
Symbol
Test Conditions
VIN = 12V
VOUT ILOAD = 0.5A
VOUT
η
8V VIN 27V
0.5A ILOAD 3A
VIN = 12V, VOUT = 5V
IOUT = 3A
FOSC
VSAT
ICL
VIH
VIL
IIH
IIL
IOUT = 3A
VOUT = 0V
VOUT = Nominal Output Voltage
ON/OFF Pin = 5V (OFF)
ON/OFF Pin = 0V (ON)
Typical
Limits
5V
4.9VMin
5.1VMax
5V
4.8VMin
5.2VMax
77%
150KHz
1.4V
6.0A
1.4V
1.2V
12µA
0µA
127 KHz (Min)
173 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 N2596XG-5 parts name.
2 MAY-03-2004





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