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LM2738XMY Datasheet(PDF) 3 Page - Texas Instruments |
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LM2738XMY Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 40 page  3 LM2738 www.ti.com SNVS556C – APRIL 2008 – REVISED JANUARY 2016 Product Folder Links: LM2738 Submit Documentation Feedback Copyright © 2008–2016, Texas Instruments Incorporated (1) I = Input, O = Output, and PWR = Power 5 Pin Configuration and Functions NGQ Package 8-Pin WSON With Exposed Thermal Pad Top View DGN Package 8-Pin MSOP-PowerPAD Top View Pin Functions PIN TYPE(1) DESCRIPTION NO. NAME 1 BOOST I Boost voltage that drives the internal NMOS control switch. A bootstrap capacitor is connected between the BOOST and SW pins. 2 VIN PWR Supply voltage for output power stage. Connect a bypass capacitor to this pin. Must tie pins 2 and 3 together at package. 3 VCC I Input supply voltage of the device. Connect a bypass capacitor to this pin. Must tie pins 2 and 3 together at the package. 4 EN I Enable control input. Logic high enables operation. Do not allow this pin to float or be greater than VIN + 0.3 V. 5, 7 GND PWR Signal and power ground pins. Place the bottom resistor of the feedback network as close as possible to these pins. 6 FB I Feedback pin. Connect FB to the external resistor divider to set output voltage. 8 SW O Output switch. Connects to the inductor, catch diode, and bootstrap capacitor. DAP GND — Signal and power ground. Must be connected to GND on the PCB. |
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