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SC172 датащи(PDF) 8 Page - Semtech Corporation

номер детали SC172
подробное описание детали  2A 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

SC172 датащи(HTML) 8 Page - Semtech Corporation

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© 2010 Semtech Corporation
Typical Characteristics
Efficiency vs Output Current
65.0
70.0
75.0
80.0
85.0
90.0
95.0
100.0
0
0.5
1
1.5
2
Output Current (A)
Vin=5V, Vo=3.3V,
LOUT: DS86C-B992AS-2R0N,
COUT=22mFx2
RTON = 90.9kOhm
Red: PSAVE Mode
Blue: Forced Continuous PWM Mode
Efficiency vs Output Current
50.0
55.0
60.0
65.0
70.0
75.0
80.0
85.0
90.0
95.0
0
0.5
1
1.5
2
Output Current (A)
Vin=5V, Vo=1.2V,
LOUT: DS86C-B992AS-2R0N
COUT=22mF+0.1mF
RTON = 24.9kOhm
Red: PSAVE Mode
Blue: Forced Continuous PWM Mode
Efficiency vs Output Current
50.0
55.0
60.0
65.0
70.0
75.0
80.0
85.0
90.0
95.0
0
0.5
1
1.5
2
Output Current (A)
Vo=1.2V, RTON = 24.9kOhm
LOUT: DS86C-B992AS-2R0N
COUT:22mF+0.1mF
Forced Continuous Mode
Red:Vin = 3.5V
Green: Vin = 4.0V
Blue: Vin = 5.0V
Output Voltage vs Output Current
3.320
3.326
3.332
3.338
3.344
3.350
0
0.5
1
1.5
2
Output Current (A)
Vin=5V, Vo=3.3V,
LOUT: DS86C-B992AS-2R0N
COUT=22mFx2
RTON = 90.9kOhm
Blue: Forced Continuous PWM Mode
Red: PSAVE Mode
Output Voltage vs Output Current
1.216
1.217
1.218
1.219
1.220
1.221
1.222
1.223
1.224
0
0.5
1
1.5
2
Output Current (A)
Vin=5V, Vo=1.21V,
LOUT: DS86C-B992AS-2R0N
COUT=22mF+0.1mF
RTON = 24.9kOhm
Red: PSAVE Mode
Blue: Forced Continuous PWM
Mode
Output Voltage vs Output Current
1.210
1.213
1.215
1.218
1.220
1.223
1.225
0
0.5
1
1.5
2
Output Current (A)
Vo=1.21V, RTON =24.9kOhm
COUT:22mF+0.1mF
LOUT: DS86C-B992AS-2R0N,
Forced Continuous Mode
Black: Vin = 3.5V
Black: Vin = 3.5V
Red: Vin = 4V
Blue: Vin = 5.0V
8
SC172



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