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MAX1543 Datasheet(PDF) 7 Page - Maxim Integrated Products |
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MAX1543 Datasheet(HTML) 7 Page - Maxim Integrated Products |
7 / 20 page TFT LCD DC-to-DC Converter with Operational Amplifiers _______________________________________________________________________________________ 7 -30 100 100k 10k 1k OPERATIONAL AMPLIFIER FREQUENCY RESPONSE FOR VARIOUS CLOAD 20 -10 -20 10 0 FREQUENCY (Hz) VSUP = 8V AV = 1 RL = 10k Ω 1000pF 15pF 56pF 100pF 100 0 1 100 1000 OPERATIONAL AMPLIFIER OVERSHOOT vs. LOAD CAPACITANCE 20 LOAD CAPACITANCE (pF) 40 60 80 VSUP = 8V RL = 10k Ω AV = 1 POS_ = 4V ±50mV FALLING EDGE RISING EDGE Typical Operating Characteristics (continued) (VIN = 3.3V, VMAIN = 8V, fOSC = 1.2MHz, TA = +25°C, unless otherwise noted.) OPERATIONAL AMPLIFIER OUTPUT LOW VOLTAGE vs. LOAD IOUT_ (mA) 8 6 4 2 40 80 120 160 0 010 VSUP = 8V AV = 1 OPERATIONAL AMPLIFIER OUTPUT HIGH VOLTAGE vs. LOAD IOUT_ (mA) 8 6 4 2 40 80 120 160 0 010 VSUP = 8V AV = 1 POWER-SUPPLY REJECTION RATIO vs. FREQUENCY FREQUENCY (Hz) 1k 100 10 1 20 40 60 80 100 120 0 0.1 10k VSUP = 8V OPERATIONAL AMPLIFIER SETTLING TIME vs. STEP SIZE STEP SIZE (V) 1.4 1.6 1.8 1.0 1.2 0.4 0.6 0.8 0.2 100 50 200 150 300 250 400 450 350 500 0 0 2.0 VSUP = 8V AV = +1 RL = 10k Ω CL = 10pF VCM = 4V RISING EDGE FALLING EDGE STEP-UP REGULATOR LOAD-TRANSIENT RESPONSE MAX1542 toc15 40 µs/div IMAIN 200mA/div IL 500mA/div 200mA 20mA VMAIN AC-COUPLED 100mV/div L = 4.7 µH RCOMP = 120k Ω CCOMP = 470pF |
Similar Part No. - MAX1543 |
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Similar Description - MAX1543 |
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