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SC403B датащи(PDF) 5 Page - Semtech Corporation

номер детали SC403B
подробное описание детали  6A EcoSpeed짰 Integrated FET Regulator with Programmable LDO
PDF  32 Pages
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производитель  SEMTECH [Semtech Corporation]
домашняя страница  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC403B датащи(HTML) 5 Page - Semtech Corporation

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5
SC403B
Electrical Characteristics (continued)
Parameter
Conditions
Min
Typ
Max
Units
Current Sense
Zero-Crossing Detector Threshold
LX - PGND
-3
0
+3
mV
Power Good
Power Good Threshold
Upper limit, V
FB > internal reference
+20
%
Lower limit, V
FB < internal reference
-10
%
Start-Up Delay Time (between PWM enable and
PGOOD going high)
V
DD = 3V, CSS = 10nF
7
ms
V
DD = 5V, CSS = 10nF
12
Soft Start Threshold
When PGOOD logic switches high
64
%
Fault (noise immunity) Delay Time
5
µs
Leakage
1
µA
Power Good On-Resistance
10
Ω
Fault Protection
Valley Current Limit
V
DD = 5V,RILIM = 7.06k Ω
4.8
6
7.2
A
V
DD = 3V,RILIM = 7.06k Ω
5.1
Output Under-Voltage Fault
V
FB with respect to internal reference,
8 consecutive switching cycles
-25
%
Smart Power-save Protection Threshold
V
FB with respect to internal reference
+10
%
Over-Voltage Protection Threshold
V
FB with respect to internal reference
+20
%
Over-Voltage Fault Delay
5
μs
Over-Temperature Shutdown
10°C hysteresis
155
°C
Logic Inputs/Outputs
Logic Input High Voltage
ENL, minimum level
1
V
Logic Input Low Voltage
ENL, maximum level
0.4
V
EN/PSV Input for PSAVE Operation
Maximum level expressed in % of V
DD
100
%
Minimum level expressed in % of V
DD
45



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