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TPS54336ADRCR Datasheet(PDF) 3 Page - Texas Instruments |
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TPS54336ADRCR Datasheet(HTML) 3 Page - Texas Instruments |
3 / 47 page VIN PH GND GND GND SS BOOT EN COMP VSENSE Exposed Thermal Pad 1 2 3 4 5 10 9 8 7 6 VIN PH GND GND GND RT BOOT EN COMP VSENSE Exposed Thermal Pad 1 2 3 4 5 10 9 8 7 6 BOOT SS EN COMP VSENSE VIN PH GND 1 8 7 6 5 2 3 4 PowerPAD BOOT RT EN COMP VSENSE VIN PH GND 1 8 7 6 5 2 3 4 PowerPAD 3 TPS54335A, TPS54335-1A, TPS54336A www.ti.com SLVSCD5D – NOVEMBER 2014 – REVISED FEBRUARY 2016 Product Folder Links: TPS54335A TPS54335-1A TPS54336A Submit Documentation Feedback Copyright © 2014–2016, Texas Instruments Incorporated 5 Pin Configuration and Functions DDA Package 8-Pin SO PowerPAD TPS54335A Top View DDA Package 8-Pin SO PowerPAD TPS54336A Top View DRC Package 10-Pin VSON With Exposed Thermal Pad TPS54335A and TPS54335-1A Top View DRC Package 10-Pin VSON With Exposed Thermal Pad TPS54336A Top View Pin Functions PIN I/O DESCRIPTION NAME SO PowerPAD VSON BOOT 1 9 O A bootstrap capacitor is required between the BOOT and PH pins. If the voltage on this capacitor is below the minimum required by the output device, the output is forced to switch off until the capacitor is refreshed. COMP 6 7 O This pin is the error-amplifier output and the input to the output switch-current comparator. Connect frequency compensation components to this pin. EN 7 8 I This pin is the enable pin. Float the EN pin to enable. GND 4 3 — Ground 4 5 PH 3 2 O The PH pin is the source of the internal high-side power MOSFET. RT (TPS54335A and TPS54335-1A) 8 10 O Connect the RT pin to an external timing resistor to adjust the switching frequency of the device. SS (TPS54336A) The SS pin is the soft-start and tracking pin. An external capacitor connected to this pin sets the internal voltage-reference rise time. The voltage on this pin overrides the internal reference. VIN 2 1 — This pin is the 4.5- to 28-V input supply voltage. VSENSE 5 6 I This pin is the inverting node of the transconductance (gm) error amplifier. PowerPAD (SO only) — For proper operation, connect the GND pin to the exposed thermal pad. This thermal pad should be connected to any internal PCB ground plane using multiple vias for good thermal performance. Thermal pad (VSON only) |
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