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SC3303 датащи(PDF) 4 Page - Semtech Corporation

номер детали SC3303
подробное описание детали  3A EcoSpeed Step-Down Regulator with LDO and Ultrasonic Power Save
PDF  26 Pages
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производитель  SEMTECH [Semtech Corporation]
домашняя страница  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC3303 датащи(HTML) 4 Page - Semtech Corporation

  SC3303 Datasheet HTML 1Page - Semtech Corporation SC3303 Datasheet HTML 2Page - Semtech Corporation SC3303 Datasheet HTML 3Page - Semtech Corporation SC3303 Datasheet HTML 4Page - Semtech Corporation SC3303 Datasheet HTML 5Page - Semtech Corporation SC3303 Datasheet HTML 6Page - Semtech Corporation SC3303 Datasheet HTML 7Page - Semtech Corporation SC3303 Datasheet HTML 8Page - Semtech Corporation SC3303 Datasheet HTML 9Page - Semtech Corporation Next Button
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4
SC3303
4
Parameter
Conditions
Min
Typ
Max
Units
Timing
On-Time
Continuous Mode V
IN
=15V, V
OUT
=3V, R
TON
= 200kΩ
0.9
1
1.1
μs
Minimum On-Time(1)
100
ns
Minimum Off-Time(1)
320
ns
Soft start
Soft start Time(1)
Delay from PWM Switching to Output Regulation
850
μs
Current Sense
Zero-Crossing Detector Threshold
LX - PGND
-10
0
+10
mV
Power Good
Power Good Threshold
Upper Limit, V
FB
> internal 750mV reference
120
%V
REF
Lower Limit, V
FB
< internal 750mV reference
90
PGOOD Delay Time(1)
Between VOUT at 90% of its regulation value
and the PGOOD signal transitioning to high
1ms
Noise Immunity Delay Time (1)
5μs
Leakage
1μA
Power Good On-Resistance
10
Ω
Fault Protection
Output Under-Voltage Fault
FB with Respect to REF,
8 Consecutive Switching Cycles
75
%V
REF
Output Over-Voltage Fault
FB with Respect to REF
120
%V
REF
Smart PowerSave Protection Threshold
FB with Respect to REF
110
%V
REF
OV, UV Fault Noise Immunity Delay (1)
5μs
Over-Temperature Shutdown (1)
OT Latched
145
°C
Enable Logic
PWM Output Enabled(1)
1.5
V
LDO Output Enabled
0.8
V
EN Input Bias Current
V
EN
= 5V
-10
10
μA
Electrical Characteristics (continued)



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