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TPS54331D Datasheet(PDF) 4 Page - Texas Instruments |
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TPS54331D Datasheet(HTML) 4 Page - Texas Instruments |
4 / 24 page DEVICE INFORMATION PIN ASSIGNMENTS 1 2 3 4 5 6 7 8 BOOT VIN EN SS PH GND COMP VSENSE TPS54331 SLVS839B – JULY 2008 – REVISED OCTOBER 2008 ...................................................................................................................................................... www.ti.com TERMINAL FUNCTIONS TERMINAL DESCRIPTION NAME NO. BOOT 1 A 0.1 µF bootstrap capacitor is required between BOOT and PH. If the voltage on this capacitor falls below the minimum requirement, the high-side MOSFET is forced to switch off until the capacitor is refreshed. VIN 2 Input supply voltage, 3.5 V to 28 V. EN 3 Enable pin. Pull below 1.25V to disable. Float to enable. Programming the input undervoltage lockout with two resistors is recommended. SS 4 Slow start pin. An external capacitor connected to this pin sets the output rise time. VSENSE 5 Inverting node of the gm error amplifier. COMP 6 Error amplifier output, and input to the PWM comparator. Connect frequency compensation components to this pin. GND 7 Ground. PH 8 The source of the internal high-side power MOSFET. 4 Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): TPS54331 |
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