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參數(shù)資料
| 型號(hào)： | LM3075MTCX/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 330 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封裝： | LEAD FREE, TSSOP-20 |
| 文件頁(yè)數(shù)： | 12/18頁(yè) |
| 文件大?。?/td> | 857K |
| 代理商： | LM3075MTCX/NOPB |
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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.
Voltages from the indicated pins to GND:
VIN, ILIM, CSH
0.3V to 38V
SW, CSL
0.3 to (V
IN + 0.3V)
PGOOD, FB, VDD, EXT, EN
0.3V to +7V
COMP, SS, FPWM, FS
0.3V to (V
LIN5
+0.3)V
CBOOT
-0.3V to +43V
CBOOT to SW
0.3V to 7V
LDRV
0.3V to (V
DD+0.3V)
HDRV to SW
0.3V
HDRV to CBOOT
+0.3V
Storage Temperature Range
65C to +150C
Junction Temperature
150C
Lead Temperature (Soldering, 10
sec)
260C
ESD Rating (Note 2)
1.5kV
Operating Ratings(Note 1)
Junction Temperature
40C to +125C
VIN to GND
4.5V to 36V
EXT
6V Max
Electrical Characteristics Limits in standard type are for T
J = 25C only, and limits in boldface type apply
over the junction temperature T
J range of -40C to +125C. Minimum and Maximum limits are guaranteed through test, de-
sign, or statistical correlation. Typical values represent the most likely parametric norm at T
J = 25C, and are provided for ref-
erence purposes only. Unless otherwise specified V
IN = 12V.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
V
FB
Feedback pin voltage
V
IN = 4.5V to 36V
1.213
1.238
1.259
V
Load Regulation
V
COMP = 0.5V to 1.5V
0.04
%
Line Regulation
V
IN = 4.5V to 36V
0.04
%
I
Q
Operating Quiescent current V
IN = 4.5V to 36V
1.0
2
mA
I
SD
Shutdown Quiescent current V
EN =0V
60
100
A
V
LIN5
V
LIN5 Output Voltage
I
VLIN5 = 0 to 25mA
V
IN = 5.5V to 36V
4.7
5
5.3
V
UVLO
V
LIN5 Under Voltage
Lockout
3.7
3.9
4.1
V
UVLO_HYS
V
LIN5 Under Voltage
Lockout Hysteresis
0.2
V
CL_OS
Current Limit Comparator
Offset
(V
ILIM –VCSL)
±0.2
mV
I
ILIM
I
LIM sink current
8.3
10
11.3
A
I
SS_SRC
Soft-Start Pin Source
Current
V
SS = 1.2V
1
2
3
A
I
SS_SNK
Soft-Start Pin Sink Current
V
SS =2V
4
A
V
SS_TO
Soft-Start Timeout
Threshold
2V
V
OVP
Over Voltage Protection
Rising Threshold
With respect to V
FB
105
111
117
%
V
OVP_HYS
Over Voltage Protection
Hysteresis
With respect to V
FB
2.8
%
POWERGOOD
V
PWR_GOOD
PGOOD Rising Threshold
92.5
95.5
98.5
%
V
PWR_BAD
PGOOD Falling Threshold
87
90.5
95
%
T
PGOOD
PGOOD delay
PGOOD pin de-asserting
10
s
I
OL
PGOOD Low Sink Current
V
PGOOD = 0.4V
0.6
1mA
I
OH
PGOOD High Leakage
Current
V
PGOOD =5V
5
200
nA
GATE DRIVE
LM3075
www.national.com
3
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