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參數(shù)資料
| 型號： | MBR0520LTI |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | DB-LM3S102 Daughterboard |
| 中文描述： | 同步降壓控制器，帶有預(yù)偏置啟動和可選時鐘同步 |
| 文件頁數(shù)： | 3/23頁 |
| 文件大?。?/td> | 1002K |
| 代理商： | MBR0520LTI |
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V
CC
BOOT Voltage
I
SEN
FREQ/SYNC Voltage
All other pins
Junction Temperature
Storage Temperature
-0.3 to 7V
-0.3 to 18V
-0.3 to 14V
-0.5 to V
CC
+ 0.3V
-0.3 to V
CC
+ 0.3V
150C
65C to 150C
Soldering Information
Lead Temperature (soldering, 10sec)
Infrared or Convection (20sec)
ESD Rating (Note 3)
260C
235C
2kV
Operating Ratings
Supply Voltage Range, V
CC
(Note 2)
BOOT Voltage Range
Junction Temperature Range (T
J
)
Thermal Resistance (
θ
JA
)
3V to 6V
1V to 17V
40C to +125C
155C/W
Electrical Characteristics
V
= 3.3V unless otherwise indicated. Typicals and limits appearing in plain type apply for T
= T
= 25C. Limits appearing in
boldface type apply over full Operating Temperature Range. Datasheet min/max specification limits are guaranteed by design,
test, or statistical analysis.
Symbol
V
FB
V
ON
Parameter
Conditions
Min
0.594
Typ
0.6
2.79
2.42
Max
0.606
Units
V
FB Pin Voltage
UVLO Thresholds
V
CC
= 3V to 6V
V
CC
Rising
V
CC
Falling
V
CC
= 3.3V, V
SD
= 3.3V
f
SW
= 600 kHz
V
CC
= 5V, V
SD
= 3.3V
f
SW
= 600 kHz
V
CC
= 3.3V, V
SD
= 0V
V
FB
Rising
V
FB
Falling
V
SS
= 0V
V
SS
= 2.0V
V
I
Q_VCC
Operating V
CC
Current
1.1
1.7
2.3
mA
1.3
2
2.6
Shutdown V
CC
Current
PWGD Pin Response Time
PWGD Pin Response Time
SS Pin Source Current
SS Pin Sink Current During Over
Current
I
SEN
Pin Source Current Trip
Point
FB Pin Current
1
10
10
10
3
μA
μs
μs
μA
t
PWGD1
t
PWGD2
I
SS-ON
I
SS-OC
7
14
90
μA
I
SEN-TH
25
40
55
μA
I
FB
Sourcing
20
nA
ERROR AMPLIFIER
GBW
Error Amplifier Unity Gain
Bandwidth
Error Amplifier DC Gain
Error Amplifier Slew Rate
EAO Pin Current Sourcing and
Sinking Capability
Error Amplifier Output Voltage
9
MHz
G
SR
I
EAO
118
2
14
16
1
2.2
dB
V/μs
mA
V
EAO
Minimum
Maximum
V
V
L
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