SC1109 Ver la hoja de datos (PDF) - Semtech Corporation
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SC1109 Datasheet PDF : 17 Pages
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PRELIMINARY - October 16, 2000
SYNCHRONOUS PWM CONTROLLER WITH
DUAL LOW DROPOUT REGULATOR
CONTROLLERS
SC1109
SC1109 (VTT) Eff. vs Iout (Vin = 5.0V)
90.0%
80.0%
70.0%
60.0%
50.0%
40.0%
30.0%
20.0%
10.0%
0.0%
0.00
IRL3103R(V1.8,V2.5 No load)
2.00
4.00
6.00
Iout_Vtt (Amps)
8.00
Typical VTT Efficiency at Vin=5V
SC1109 (VTT) Line Reg. vs Vin (Iout = 6.0A)
0.350%
0.300%
0.250%
0.200%
0.150%
0.100%
0.050%
IRL3103R(V1.8,V2.5 No load)
0.000%
4.000 4.500 5.000 5.500 6.000 6.500 7.000
Vin (V)
Typical VTT Line Regulation at Iout = 6 Amps
SC1109 (VTT) Load Reg. vs Iout (Vin = 5.0V)
0.000%
-0.100%
-0.200%
-0.300%
-0.400%
-0.500%
IRL3103R(V1.8,V2.5 No load)
-0.600%
0.00
2.00
4.00
6.00
Iout_Vtt (Amps)
8.00
Typical VTT Load Regulation at Vin=5V
SC1109 (VTT) Line Reg. vs Vin (Iout = 3.0A)
0.120%
0.100%
IRL3103R(V1.8,V2.5 No load)
0.080%
0.060%
0.040%
0.020%
0.000%
4.700 4.800 4.900 5.000 5.100 5.200 5.300
Vin (V)
Typical VTT Line Regulation at Iout = 3 Amps
© 2000 SEMTECH CORP.
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