The TPS54340B is a 42-V, 3.5-A, step-down regulator with an integrated high side MOSFET. Current mode control provides simple external compensation and flexible component selection. A low ripple pulse skip mode reduces the no-load supply current to 146 µA. Shutdown supply current is reduced to 2 µA when the enable pin is pulled low.
Undervoltage lockout is internally set at 4.3 V but can be increased using the enable pin. The output voltage start-up ramp is internally controlled to provide a controlled start-up and eliminate overshoot.
A wide switching-frequency range allows either efficiency or external component size to be optimized. Frequency foldback and thermal shutdown protect internal and external components during an overload condition.
The TPS54340B is available in an 8-pin thermally enhanced HSOIC PowerPAD™ package.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | TPS54340B 42-V Input, 3.5-A, Step-Down DC/DC Converter With Eco-Mode™ datasheet | PDF | HTML | 10 Dec 2018 |
| Application note | NRND & Differences TPS54340/360/540/560 and TPS54340B/360B/540B/560B | 05 Apr 2019 | ||
| Test report | Test Report for the iPad Automotive Charger | 11 Jun 2013 | ||
| Application note | Level Shifting Control for an Inverting Buck-boost | 10 Oct 2012 | ||
| Application note | Creating GSM Power Supply from TPS54260 | 30 Apr 2010 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HSOIC (DDA) | 8 | Ultra Librarian |
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