TPS543B22RYSR
Active4-V TO 18-V INPUT, ADVANCED CURRENT MODE, 20-A SYNCHRONOUS SWIFT™ STEP-DOWN CONVERTER
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TPS543B22RYSR
Active4-V TO 18-V INPUT, ADVANCED CURRENT MODE, 20-A SYNCHRONOUS SWIFT™ STEP-DOWN CONVERTER
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS543B22RYSR |
|---|---|
| Current - Output | 20 A |
| Frequency - Switching | 500 kHz, 2.2 MHz, 1.5 MHz, 750 kHz, 1 MHz |
| Function | Step-Down |
| Mounting Type | Wettable Flank, Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 150 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Package / Case | 17-PowerWFQFN |
| Supplier Device Package | 17-WQFN-FCRLF |
| Supplier Device Package [x] | 2.5 |
| Supplier Device Package [y] | 4.5 |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Input (Max) [Max] | 18 V |
| Voltage - Input (Min) [Min] | 4 V |
| Voltage - Output (Max) [Max] | 7 V |
| Voltage - Output (Min/Fixed) [Min] | 0.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | N/A | 7317 | $ 4.80 | |
| Texas Instruments | LARGE T&R | 1 | $ 3.13 | |
| 100 | $ 2.55 | |||
| 250 | $ 2.00 | |||
| 1000 | $ 1.70 | |||
Description
General part information
TPS543B22 Series
The TPS543B22 is a high-efficiency 18V, 20A synchronous buck converter employing an internally compensated, fixed-frequency advanced current mode (ACM) control architecture, which while always operating under FCCM, generates output voltages from 0.5V to 7V. The device is capable of providing high efficiency while operating at a switching frequency up to 2.2MHz, making the device an excellent choice for designs requiring a small solution size. The fixed frequency controller can operate from 500kHz to 2.2MHz and can be synchronized to an external clock using the SYNC pin. Additional features include a high accuracy voltage reference, two-wire remote sense, selectable soft-start times, monotonic start-up into prebiased outputs, selectable current limits, adjustable UVLO through the EN pin, and a full suite of fault protections.
The TPS543B22 is available in a small 2.5mm × 4.5mm HotRod™ WQFN-FCRLF package.
The TPS543B22 is a high-efficiency 18V, 20A synchronous buck converter employing an internally compensated, fixed-frequency advanced current mode (ACM) control architecture, which while always operating under FCCM, generates output voltages from 0.5V to 7V. The device is capable of providing high efficiency while operating at a switching frequency up to 2.2MHz, making the device an excellent choice for designs requiring a small solution size. The fixed frequency controller can operate from 500kHz to 2.2MHz and can be synchronized to an external clock using the SYNC pin. Additional features include a high accuracy voltage reference, two-wire remote sense, selectable soft-start times, monotonic start-up into prebiased outputs, selectable current limits, adjustable UVLO through the EN pin, and a full suite of fault protections.
Documents
Technical documentation and resources