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LM2619 Folha de dados(PDF) 3 Page - National Semiconductor (TI) |
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LM2619 Folha de dados(HTML) 3 Page - National Semiconductor (TI) |
3 / 15 page Connection Diagrams 10-Bump micro SMD Package 20057404 Top View 20057405 Bottom View Ordering Information Order Number Package Type NSC Package Marking (*) Supplied As LM2619ATL 10-bump Wafer Level Chip Scale (micro SMD) XYTT S76A 250 Tape and Reel LM2619ATLX XYTT S76A 3000 Tape and Reel (*) XY - denotes the date code marking (2 digit) in production (*) TT - refers to die run/lot traceability for production (*) S - product line designator Package markings may change over the course of production. Pin Description Pin Number Pin Name Function A1 FB Feedback Analog Input. B1 EANEG Inverting input of error amplifier. C1 EAOUT Output of error amplifier. D1 SYNC/MODE Synchronization Input. Use this digital input for frequency selection or modulation control. Set: SYNC/MODE = high for low-noise 600kHz PWM mode SYNC/MODE = low for low-current PFM mode SYNC/MODE = a 500kHz–1MHz external clock for synchronization in PWM mode. (See Synchronization and Operating Modes in the Device Information section.) D2 EN Enable Input. Set this Schmitt trigger digital input high for normal operation. For shutdown, set low. Set EN low during system power-up and other low supply voltage conditions. (See Shutdown Mode in the Device Information section.) D3 PGND Power Ground. C3 SW Switching Node connection to the internal PFET switch and NFET synchronous rectifier. Connect to an inductor with a saturation current rating that exceeds the max Switch Peak Current Limit of the LM2619. B3 PVIN Power Supply Voltage Input to the internal PFET switch. Connect to the input filter capacitor. A3 VDD Analog Supply Input. If board layout is not optimum, an optional 0.1µF ceramic capacitor is suggested. A2 SGND Analog and Control Ground. www.national.com 3 |
Nº de peça semelhante - LM2619 |
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Descrição semelhante - LM2619 |
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