N2596G-5 [ETC]
150 KHz 3A Step-Down Switching Voltage Regulator (SVR)-Preliminary; 150千赫3A降压型开关稳压器（ SVR ） -Preliminary
| 型号： | N2596G-5 |
| 厂家： | 
ETC |
| 描述： | 150 KHz 3A Step-Down Switching Voltage Regulator (SVR)-Preliminary |
| 文件： | 总5页 (文件大小：136K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
150 KHz 3A Step-Down Switching
Voltage Regulator (SVR)-Preliminary
N2596G-5
NIKO-SEM
TO-220, TO263
GENERAL DESCRIPTION
FEATURES
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.
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
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.
z High efficiency
z Uses readily available standard inductors
APPLICATIONS
z Simple high-efficiency step-down (buck)
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.
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
Feedback
Unregulated
4
2
+5V, 3A
DC Input
1
Regulated
N2596
Output
L1
Output
+Vin
3
5
47uH
Gnd On/Off
Cin
+
+
100uF
D1
1N5822
Cout
1000uF
MAY-03-2004
1
150 KHz 3A Step-Down Switching
Voltage Regulator (SVR)-Preliminary
N2596G-5
NIKO-SEM
TO-220, TO263
ABSOLUTE MAXIMUM RATINGS
z Thermal Resistance
Junction to Ambient, θ
TO-220
z Maximum Supply Voltage
z ON/OFF Pin Input Voltage
30V
JA
50°C/W
60°C/W
-0.3≤V≤+VI
TO-263
z Output Voltage to Ground
z Operating Junction
Temperature Range
z Storage Temperature
Range
-1V
-40 to 125°C
-65 to 150°C
260°C
(Stead State)
Internally
z Power Dissipation
z Thermal Resistance
Limited
z Lead Temperature
(Soldering, 10 Seconds)
2.0°C/W
Junction to Case, θ
JC
ELECTRICAL CHARACTERISTICS (Unless otherwise specified, TA = 25°C.)
Parameter
Symbol
Test Conditions
Typical
Limits
VIN = 12V
LOAD = 0.5A
4.9VMin
5.1VMax
Output Voltage
VOUT
I
5V
8V ≤ VIN ≤ 27V
4.8VMin
5.2VMax
Output Voltage
Efficiency
VOUT
5V
0.5A ≤ ILOAD ≤ 3A
VIN = 12V, VOUT = 5V
77%
η
I
OUT = 3A
Oscillator
127 KHz (Min)
173 KHz (Max)
1.8VMax
FOSC
150KHz
Frequency
Saturation Voltage
Current Limit
ON/OFF Pin Logic
Input Level
VSAT IOUT = 3A
ICL
1.4V
6.0A
1.4V
1.2V
12µA
0µA
4.0A ~ 7.0A
2.2V (Min)
VIH
VIL
IIH
VOUT = 0V
VOUT = Nominal Output Voltage
ON/OFF Pin = 5V (OFF)
ON/OFF Pin = 0V (ON)
1.0V (Max)
30µA (Max)
10µA (Max)
ON/OFF Pin Logic
Input Current
IIL
REMARK: Orders for parts with Lead-Free plating can be placed using the N2596XG-5 parts name.
MAY-03-2004
2
150 KHz 3A Step-Down Switching
Voltage Regulator (SVR)-Preliminary
N2596G-5
NIKO-SEM
TO-220, TO263
DEVICE SELECTION GUIDE
Device
Voltage (V)
Current (A)
Package
N2596SG-5
N2596TG-5
5
5
3
TO-263
TO-220
Marking
N2596SG-5
N2596TG-5
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
MAY-03-2004
3
150 KHz 3A Step-Down Switching
Voltage Regulator (SVR)-Preliminary
N2596G-5
NIKO-SEM
TO-220, TO263
TO-220 (5-Lead) MECHANICAL DATA
mm
mm
Typ.
1.7
6.81
4.6
1.27
2.6
Dimension
Dimension
Min.
Typ.
10.16
2.74
Max.
10.54
2.87
Min.
1.57
Max.
1.83
A
B
C
D
E
F
9.78
2.61
H
I
J
K
L
M
N
4.4
1.14
2.3
4.8
1.4
2.9
28.5
14.6
8.4
28.9
15.0
8.8
29.3
15.4
9.2
0.26
0.46
7°
0.66
G
0.73
0.83
0.93
MAY-03-2004
4
150 KHz 3A Step-Down Switching
Voltage Regulator (SVR)-Preliminary
N2596G-5
NIKO-SEM
TO-220, TO263
TO-263 (D2PAK, 5-Lead) MECHANICAL DATA
mm
Typ.
15
mm
Typ.
1.5
Dimension
Dimension
Min.
14.5
4.2
Max.
15.8
4.7
Min.
1.0
9.8
Max.
1.8
10.3
A
B
C
D
E
F
H
I
J
K
L
M
N
1.20
1.35
6.5
1.5
0.85
1.7
2.8
0.4
0.3
-0.102
8.5
0.5
0.203
9.5
0.7
1.57
1.0
1.83
G
9
MAY-03-2004
5
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