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SC196AEVB датащи(PDF) 11 Page - Semtech Corporation

номер детали SC196AEVB
подробное описание детали  1.5A Synchronous Buck Converter with Integrated Power Devices
PDF  17 Pages
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производитель  SEMTECH [Semtech Corporation]
домашняя страница  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC196AEVB датащи(HTML) 11 Page - Semtech Corporation

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© 2008 Semtech Corp.
www.semtech.com
SC196A
PRELIMINARY
POWER MANAGEMENT
Typical Characteristics
Efficiency vs. Load Current V
OUT = 1.0V
Efficiency vs. Load Current V
OUT = 1.2V
Efficiency vs. Load Current V
OUT = 1.8V
PWM to PSAVE Hysteresis
70
75
80
85
90
95
0.001
0.01
0.1
1
PSAVE Entry for decreasing IOUT
PSAVE MODE IOUT decreasing
PSAVE Mode IOUT increasing
PSAVE Exit for increasing IOUT
PWM Mode
IOUT (A)
0
10
20
30
40
50
60
70
80
90
100
0.0001
0.001
0.01
0.1
1
IOUT (A)
VIN=3.6V PSAVE
VIN=4.2V PSAVE
VIN=2.7V PSAVE
VIN=3.6V PWM
VIN=4.2V PWM
VIN=2.7V PWM
0
10
20
30
40
50
60
70
80
90
100
0.0001
0.001
0.01
0.1
1
VIN=3.6V PSAVE
VIN=4.2V PSAVE
VIN=2.7V PSAVE
VIN=3.6V PWM
VIN=4.2V PWM
VIN=2.7V PWM
IOUT (A)
0
10
20
30
40
50
60
70
80
90
100
0.0001
0.001
0.01
0.1
1
VIN=3.6V PWM
VIN=4.2V PWM
VIN=2.7V PWM
VIN=3.6V PSAVE
VIN=4.2V PSAVE
VIN=2.7V PSAVE
IOUT (A)
70
75
80
85
90
95
100
3.0
2.5
3.5
4.0
4.5
5.5
5.0
Vin(V)
VOUT=1.8V,PWM
VOUT=1.8V,PSAVE
VOUT=1V,PWM
VOUTt=1V,PSAVE
Efficiency vs. Input Voltage
I
OUT=500 mA(PWM)/50 mA(PSAVE)



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