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TPS54627 Datasheet(PDF) 5 Page - Texas Instruments |
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TPS54627 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 24 page EXPOSED THERMAL PAD TPS54627 DDA HSOP8 VFB 2 1 EN 3 VREG5 VBST 7 SW 6 GND 5 8 VIN 4 SS TPS54627 www.ti.com SLVSBW6A – APRIL 2013 – REVISED SEPTEMBER 2013 DEVICE INFORMATION DDA PACKAGE (TOP VIEW) PIN FUNCTIONS PIN DESCRIPTION NAME NO. EN 1 Enable input control. EN is active high and must be pulled up to enable the device. VFB 2 Converter feedback input. Connect to output voltage with feedback resistor divider. 5.5 V power supply output. A capacitor (typical 1 µF) should be connected to GND. VREG5 is not active VREG5 3 when EN is low. SS 4 Soft-start control. An external capacitor should be connected to GND. Ground pin. Power ground return for switching circuit. Connect sensitive SS and VFB returns to GND at GND 5 a single point. SW 6 Switch node connection between high-side NFET and low-side NFET. Supply input for the high-side FET gate drive circuit. Connect 0.1µF capacitor between VBST and SW VBST 7 pins. An internal diode is connected between VREG5 and VBST. VIN 8 Input voltage supply pin. Exposed Thermal Thermal pad of the package. Must be soldered to achieve appropriate dissipation. Must be connected to Back side Pad GND. Copyright © 2013, Texas Instruments Incorporated 5 Product Folder Links :TPS54627 |
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