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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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L6726A Fiches technique(PDF) 9 Page - STMicroelectronics |
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L6726A Fiches technique(HTML) 9 Page - STMicroelectronics |
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9 / 35 page  L6726A Device description Doc ID 12754 Rev 4 9/35 4 Device description L6726A is a single-phase PWM controller with embedded high-current drivers that provides complete control logic and protections to realize in an easy and simple way a general DC- DC step-down converter. Designed to drive N-channel MOSFETs in a synchronous buck topology, with its high level of integration this 8-pin device allows reducing cost and size of the power supply solution. L6726A is designed to operate from a 5 V or 12 V supply bus. Thanks to the high precision 0.8V internal reference, the output voltage can be precisely regulated to as low as 0.8 V with ±1% accuracy over line and temperature variations (between 0 °C and +70 °C). The switching frequency is internally set to 270 kHz. This device provides a simple control loop with externally compensated transconductance error-amplifier and programmable soft start. Low-side-less feature allows the device to perform soft-start over pre-charged output avoiding negative spikes at the load side. In order to avoid load damages, L6726A provides programmable threshold over current protection. Output current is monitored across low-side MOSFET RdsON, saving the use of expensive and space-consuming sense resistor. L6726A also features FB disconnection protection, preventing dangerous uncontrolled output voltages in case of floating FB pin. |
Numéro de pièce similaire - L6726A |
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Description similaire - L6726A |
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