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LT1054CSW Datasheet(PDF) 10 Page - Linear Technology |
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LT1054CSW Datasheet(HTML) 10 Page - Linear Technology |
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10 / 16 page  10 LT1054/LT1054L TYPICAL APPLICATIONS N Basic Voltage Inverter Positive Doubler Negative Voltage Doubler 100mA Regulating Negative Doubler 1N4002 HP5082-2810 VIN 3.5 TO 15V 20k 1N4002 0.002 µF LT1054 • TAO6 2.2 µF R1 40k VOUT SET PIN 2 LT1054 #1 –VOUT IOUT ≅ 100mA MAX R2 500k 1N4002 1N4002 1N4002 , REFER TO FIGURE 5 VIN = 3.5 TO 15V VOUT MAX ≈ –2VIN + [1054 VOLTAGE LOSS + 2(VDIODE)] R2 R1 == + 1 |VOUT| ) ) VREF 2 – 40mV ) ) +1 |VOUT| 1.21V 10 µF10µF 100 µF + + 10 µF + 10 µF 10 µF + + 10 µF LT1054 #1 FB/SHDN CAP+ GND CAP – V+ OSC VREF VOUT LT1054 #2 FB/SHDN CAP+ GND CAP – V+ OSC VREF VOUT Basic Voltage Inverter/Regulator 0.002 µF R2 10 µF 100 µF REFER TO FIGURE 5 2 µF VOUT LT1054 • TA03 VIN R1 R2 R1 == + 1 |VOUT| ) ) VREF 2 – 40mV ) ) +1, |VOUT| 1.21V LT1054 FB/SHDN CAP+ GND CAP – V+ OSC VREF VOUT + 100 µF VIN –VOUT LT1054 • TAO2 LT1054 FB/SHDN CAP+ GND CAP – V+ OSC VREF VOUT 2 µF 100 µF + + 2 µF 100 µF VIN = –3.5V TO –15V VOUT = 2VIN + (LT1054 VOLTAGE LOSS) + (QX SATURATION VOLTAGE) *SEE FIGURE 3 VIN VIN VOUT LT1054 • TAO4 RX* + – 100 µF + + LT1054 FB/SHDN CAP+ GND CAP – V+ OSC VREF VOUT QX* 1N4001 VIN = 3.5V TO 15V VOUT ≈ 2VIN – (VL + 2VDIODE) VL = LT1054 VOLTAGE LOSS VIN 3.5V TO 15V LT1054 • TAO5 1N4001 VOUT 50mA + – 100 µF 2 µF 10 µF + + + LT1054 FB/SHDN CAP+ GND CAP – V+ OSC VREF VOUT |
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