SC1633 Просмотр технического описания (PDF) - Semtech Corporation
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SC1633 Datasheet PDF : 7 Pages
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LOW VOLTAGE STEP-UP
DC-DC CONVERTER
January 29, 1998
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, TA = 25°C, VIN = 3.0V
Parameter
Input Voltage
VIN
IL
Min
1.8
Output Voltage
SC1633
SC1633-3
SC1633-5
IL = 70mA
3.16
2.88
4.80
Switch Off Current
No Load Current
SC1633/SC1633-3
SC1633-5
Shutdown Mode Current
Shutdown Recovery Time
Efficiency
SC1633/SC1633-3
SC1633-5
VIN=2.5V
IL=70mA
IL=70mA
Line Regulation
SC1633
SC1633-3
SC1633-5
Load Regulation
SC1633/SC1633-3
SC1633-5
VIN=2.0 - 3.3V
VIN=2.0 - 3.0V
VIN=2.2 - 4.5V
IL=40mA
IL=1mA - 70mA
Oscillator Frequency
90
LBI Pin Trip Point
1.17
LBO “On Resistance”
SW “On Resistance”
SC1633/SC1633-3
SC1633-5
VIN = 2V
SW Off Leakage
Input Pin Bias Current
Output Pin Leakage
SC1633
Typ
3.30
3.00
5.00
105
160
250
7
1.8
87
86
0.6
0.6
0.5
0.6
0.5
120
1.22
45
1.75
1.25
Max Units
7.0
V
3.44
V
3.12
5.20
140
µA
µA
15
µA
msec
%
%VOUT
150
1.27
%VOUT
kHz
V
Ω
Ω
1
µA
10 nA/Pin
10 nA/Pin
© 1997 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
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