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LMZ12003 bảng dữ liệu(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
tên linh kiện LMZ12003
Giải thích chi tiết về linh kiện  3A SIMPLE SWITCHER짰 Power Module with 20V Maximum Input Voltage
PDF  16 Pages
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nhà sản xuất  NSC [National Semiconductor (TI)]
Trang chủ  http://www.national.com
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LMZ12003 bảng dữ liệu(HTML) 4 Page - National Semiconductor (TI)

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Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
VIN, RON to GND
-0.3V to 25V
EN, FB, SS to GND
-0.3V to 7V
Junction Temperature
150°C
Storage Temperature Range
-65°C to 150°C
ESD Susceptibility(Note 2)
± 2 kV
For soldering specifications:
see product folder at www.national.com and
www.national.com/ms/MS/MS-SOLDERING.pdf
Operating Ratings (Note 1)
V
IN
4.5V to 20V
EN
0V to 6.5V
Operation Junction Temperature
−40°C to 125°C
Electrical Characteristics Limits in standard type are for T
J = 25°C only; limits in boldface type apply over the
junction temperature (T
J) 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 T
J = 25°C, and are provided for reference purposes only.
Unless otherwise stated the following conditions apply: V
IN = 12V, Vout = 1.8V
Symbol
Parameter
Conditions
Min
(Note 3)
Typ
(Note 4)
Max
(Note 3)
Units
SYSTEM PARAMETERS
Enable Control
V
EN
EN threshold trip point
V
EN rising
1.1
1.18
1.25
V
V
EN-HYS
EN threshold hysteresis
V
EN falling
90
mV
Soft-Start
I
SS
SS source current
V
SS = 0V
5
8
11
µA
I
SS-DIS
SS discharge current
-200
µA
Current Limit
I
CL
Current limit threshold
d.c. average
V
IN= 12V to 20V
3.2
4.2
5.25
A
ON/OFF Timer
t
ON-MIN
ON timer minimum pulse width
150
ns
t
OFF
OFF timer pulse width
260
ns
Regulation and Over-Voltage Comparator
V
FB
In-regulation feedback voltage
V
SS >+ 0.8V
T
J = -40°C to 125°C
I
O = 3A
0.773
0.793
0.813
V
V
SS >+ 0.8V
T
J = 25°C
I
O = 10 mA
0.784
0.800
0.816
V
FB-OV
Feedback over-voltage
protection threshold
0.92
V
I
FB
Feedback input bias current
5
nA
I
Q
Non Switching Input Current
V
FB= 0.86V
1
mA
I
SD
Shut Down Quiescent Current
V
EN= 0V
25
μA
Thermal Characteristics
T
SD
Thermal Shutdown
Rising
165
°C
T
SD-HYST
Thermal shutdown hysteresis
Falling
15
°C
θ
JA
Junction to Ambient
4 layer JEDEC Printed Circuit Board,
100 vias, No air flow
19.3
°C/W
2 layer JEDEC Printed Circuit Board, No
air flow
21.5
°C/W
θ
JC
Junction to Case
No air flow
1.9
°C/W
PERFORMANCE PARAMETERS
ΔV
O
Output Voltage Ripple
8
mV
PP
ΔV
O/ΔVIN
Line Regulation
V
IN = 8V to 20V, IO= 3A
.01
%
ΔV
O/ΔVIN
Load Regulation
V
IN = 12V
1.5
mV/A
www.national.com
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