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PDF LMZ23608 Data sheet ( Hoja de datos )
| Número de pieza | LMZ23608 | |
| Descripción | 8A SIMPLE SWITCHER Power Module | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LMZ23608 (archivo pdf) en la parte inferior de esta página. Total 26 Páginas | ||
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LMZ23608
LMZ23608 8A SIMPLE SWITCHER® Power Module with 36V Maximum Input Voltage
and Current Sharing
www.DataSheet.net/
Literature Number: SNVS708D
Datasheet pdf - http://www.DataSheet4U.co.kr/
1 page  
Absolute Maximum Ratings (Note 3)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
VIN to PGND
EN, SYNC to AGND
SS, FB, SH to AGND
AGND to PGND
Junction Temperature
Storage Temperature Range
-0.3V to 40V
-0.3V to 5.5V
-0.3V to 2.5V
-0.3V to 0.3V
150°C
-65°C to 150°C
ESD Susceptibility (Note 4)
For soldering specifications:
see product folder at www.national.com and
www.national.com/ms/MS/MS-SOLDERING.pdf
± 2 kV
Operating Ratings (Note 3)
VIN
EN, SYNC
Operation Junction Temperature
6V to 36V
0V to 5.0V
−40°C to 125°C
Electrical Characteristics Limits in standard type are for TJ = 25°C only; limits in boldface type apply over the
junction temperature (TJ) range of -40°C to +125°C. Minimum and Maximum limits are guaranteed through test, design or statistical
correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only.
Unless otherwise stated the following conditions apply: VIN = 12V, VOUT = 3.3V
Symbol Parameter
Conditions
Min
(Note 5)
Typ
(Note 6)
Max
(Note 5)
Units
SYSTEM PARAMETERS
Enable Control
VEN
IEN-HYS
Soft-Start
EN threshold
EN hysteresis source current
VEN rising
VEN > 1.274V
1.096
1.274
13
1.452
V
µA
ISS
tSS
Current Limit
SS source current
Internal soft-start interval
VSS = 0V
40 50 60 µA
1.6 msec
ICL Current limit threshold
Internal Switching Oscillator
d.c. average
10.5 A
fosc
fsync
VIL-sync
Free-running oscillator
frequency
Synchronization range
Synchronization logic zero
amplitude
Sync input connected to ground
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Vsync = 3.3Vp-p
Relative to AGND
314 359 404 kHz
314 600 kHz
0.4 V
VIH-sync
Synchronization logic one
amplitude
Relative to AGND
1.8
V
Sync d.c.
Synchronization duty cycle
range
15 50 85 %
Regulation and Over-Voltage Comparator
VFB
VFB-OV
In-regulation feedback voltage
Feedback over-voltage
protection threshold
VSS >+ 0.8V
IO = 8A
0.775
0.795 0.815
0.86
V
V
IFB Feedback input bias current
IQ Non Switching Quiescent SYNC = 3.0V
Current
5 nA
3 mA
ISD Shut Down Quiescent Current
Dmax
Maximum Duty Factor
Thermal Characteristics
VEN = 0V
32 μA
85 %
TSD
TSD-HYST
θJA
Thermal Shutdown
Thermal shutdown hysteresis
Junction to Ambient (Note 7)
Rising
Falling
Natural Convection
225 LFPM
165 °C
15 °C
9.9 °C/W
6.8
500 LFPM
5.2
θJC Junction to Case
1.0 °C/W
www.national.com
4
Datasheet pdf - http://www.DataSheet4U.co.kr/
5 Page 
Efficiency 1.5V output @ 85°C
90
80
70
60
50
40
30
20
10
0
6 Vin
10 Vin
12 Vin
16 Vin
20 Vin
24 Vin
30 Vin
36Vin
1234567
OUTPUT CURRENT (A)
Efficiency 1.2V output @ 85°C
90
80
70
60
50
40
30
20
10
0
6 Vin
10 Vin
12 Vin
16 Vin
20 Vin
24 Vin
30 Vin
36Vin
1234567
OUTPUT CURRENT (A)
Efficiency 1.0V output @ 85°C
90
80
70
60
50
40
30
20
10
0
0
6 Vin
10 Vin
12 Vin
16 Vin
20 Vin
24 Vin
30 Vin
36Vin
1234567
OUTPUT CURRENT (A)
8
30151256
8
www.DataSheet.net/
30151258
8
30151260
Dissipation 1.5V output @ 85°C
10
9
8
7
6
5
4
3
2
1
0
0
6 Vin
10 Vin
12 Vin
16 Vin
20 Vin
24 Vin
30 Vin
36 Vin
123456
OUTPUT CURRENT (A)
7
Dissipation 1.2V output @ 85°C
10
9
8
7
6
5
4
3
2
1
0
0
6 Vin
10 Vin
12 Vin
16 Vin
20 Vin
24 Vin
30 Vin
36 Vin
123456
OUTPUT CURRENT (A)
7
Dissipation 1.0V output @ 85°C
12 6 Vin
10 Vin
10
12 Vin
16 Vin
20 Vin
8
24 Vin
30 Vin
36 Vin
6
8
30151257
8
30151259
4
2
0
012345678
OUTPUT CURRENT (A)
30151261
www.national.com
10
Datasheet pdf - http://www.DataSheet4U.co.kr/
11 Page | ||
| Páginas | Total 26 Páginas | |
| PDF Descargar | [ Datasheet LMZ23608.PDF ] | |
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