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LTC3442 Datasheet(PDF) 5 Page - Linear Technology |
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LTC3442 Datasheet(HTML) 5 Page - Linear Technology |
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5 / 20 page  LTC3442 5 3442fb For more information www.linear.com/LTC3442 TYPICAL PERFORMANCE CHARACTERISTICS Switch Pins in Buck-Boost Mode Switch Pins Entering Buck-Boost Mode Output Ripple at 1A Load Load Transient Response in Fixed Frequency Mode, No Load to 1A Load Transient Response in Auto Burst Mode Operation, No Load to 1A Burst Mode Operation Frequency Change vs Temperature (Normalized) Feedback Voltage vs Temperature (Normalized) Switch Pins Before Entering Boost Mode (TA = 25°C unless otherwise specified). TEMPERATURE (°C) –55 1.0% 0.8% 0.6% 0.4% 0.2% 0.0% –2.0% –0.4% –0.6% –0.8% –1.0% –15 25 45 125 3442 G14 –35 5 65 85 105 VIN = VOUT = 3.3V 50ns/DIV 3442 G15 SW1 2V/DIV SW2 2V/DIV VIN = 2.9V VOUT = 3.3V AT 500mA 50ns/DIV 3442 G16 SW1 2V/DIV SW2 2V/DIV VIN = 3.3V VOUT = 3.3V AT 500mA 50ns/DIV 3442 G17 SW1 2V/DIV SW2 2V/DIV VIN = 4.2V VOUT = 3.3V AT 500mA 1µs/DIV 3442 G18 VOUT 20mV/DIV AC COUPLED VIN = 4.2V VIN = 3.3V VIN = 2.7V 100µs/DIV 3442 G19 VIN = 3.6V VOUT = 3.3V COUT = 47µF, X5R CERAMIC LOAD 0.5A/DIV VOUT 100mV/DIV 100µs/DIV 3442 G20 VIN = 3.6V VOUT = 3.3V COUT = 47µF, X5R CERAMIC + 100µF LOW ESR TANTALUM LOAD 0.5A/DIV VOUT 100mV/DIV 20µs/DIV 3442 G21 COUT = 100F LOW ESR TANTALUM INDUCTOR CURRENT 0.5A/DIV VOUT 50mV/DIV TEMPERATURE (°C) –55 0.0% 0.5% 1.0% 105 3442 G13 –0.5% –1.0% –2.0% –15 25 65 –35 125 5 45 85 –1.5% 2.0% 1.5% |
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Similar Description - LTC3442_15 |
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