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SC174 датащи(PDF) 10 Page - Semtech Corporation

номер детали SC174
подробное описание детали  4A EcoSpeedTM Synchronous Step-Down Regulator with Optional Ultrasonic Power Save
PDF  27 Pages
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производитель  SEMTECH [Semtech Corporation]
домашняя страница  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC174 датащи(HTML) 10 Page - Semtech Corporation

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© 2010 Semtech Corporation
FB Voltage vs Temperature
0.745
0.748
0.750
0.753
0.755
-40 -15
10
35
60
85
110 135
Temperature (°C)
Black:VDD=5.0V
Red: VDD=3.0V
Low Side Switch On-State Resistance vs
Temperature
30
34
38
42
46
50
54
58
-40
-15
10
35
60
85
110 135
Temperature (°C)
Blue: VDD=3.0V
Black: VDD=5.0V
High Side Switch On-State Resistance vs
Temperature
40
44
48
52
56
60
64
-40
-15
10
35
60
85
110 135
Temperature (°C)
Blue: VDD=3.0V
Black: VDD=5.0V
Load Transient Test (VIN=5V, VOUT=1.2V, IOUT= 0A to 4A,
PSAVE Mode Enabled, LOUT=1.3 H,COUT=3x22 F,Channel 1:
50mV/Div, Channel 2:5V/Div,Channel 4:2A/Div,Time:20 s/Div)
Load Transient Test (VIN=5V, VOUT=1.2V, IOUT= 4A to 0A,
PSAVE Mode Enabled, LOUT=1.3 H, COUT=3x22 F, Channel 1:
50mV/Div,Channel 2:5V/Div,Channel 4:2A/Div, Time:20 s/Div)
Typical Characteristics
10
SC174



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