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SC417 датащи(PDF) 5 Page - Semtech Corporation

номер детали SC417
подробное описание детали  10A Integrated FET Regulator with Programmable LDO
PDF  29 Pages
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производитель  SEMTECH [Semtech Corporation]
домашняя страница  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC417 датащи(HTML) 5 Page - Semtech Corporation

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SC417/SC427
5
Electrical Characteristics (continued)
Parameter
Conditions
Min
Typ
Max
Units
Input Supplies (continued)
V5V Supply Current
ENL , EN/PSV = 0V
3
7
μA
SC417, EN/PSV = V5V, no load (f
SW
= 25kHz),
V
FB
> 500mV(2)
2
mA
SC427, EN/PSV = V5V, no load, V
FB
> 500mV(2)
0.7
f
SW
= 250kHz, EN/PSV = floating , no load(2)
10
FB On-Time Threshold
static V
IN
and load, 0 to +85 °C
0.496
0.500
0.504
V
static V
IN
and load, -40 to +85 °C
0.495
0.505
V
Frequency Range
continuous mode operation
200
1000
kHz
minimum f
SW
, (SC417 only), EN/PSV = V5V, no load
25
Bootstrap Switch Resistance
10
Ω
Timing
On-Time
continuous mode operation,
V
IN
= 15V, V
OUT
= 5V, f
SW
= 300kHz, R
TON
= 133kΩ
999
1110
1220
ns
Minimum On-Time (2)
50
ns
Minimum Off-Time (2)
250
ns
Soft-Start
Soft-Start Ramp Time (2)
850
μs
Analog Inputs/Outputs
VOUT Input Resistance
500
kΩ
Current Sense
Zero-Crossing Detector Threshold
LX - PGND
-3
0
+3
mV
Power Good
Power Good Threshold
upper limit, V
FB
> internal 500mV reference
+20
%
lower limit, V
FB
< internal 500mV reference
-10
%
Start-Up Delay Time
2ms
Fault (noise immunity) Delay Time(2)
5μs
Leakage
1μA
Power Good On-Resistance
10
Ω



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