
TPS543C20RVFR
Active4-V TO 14-V, 40-A SYNCHRONOUS SWIFT™ BUCK CONVERTER WITH ADAPTIVE INTERNAL COMPENSATION

TPS543C20RVFR
Active4-V TO 14-V, 40-A SYNCHRONOUS SWIFT™ BUCK CONVERTER WITH ADAPTIVE INTERNAL COMPENSATION
Description
General part information
TPS543C20 Series
The TPS543C20 employs an internally compensated emulated peak-current-mode control, with a clock synchronizable, fixed-frequency modulator for EMI-sensitive POL. The internal integrator and directly amplifying ramp tracking loop eliminate the need for external compensation over a wide range of frequencies thereby making the system design flexible, dense, and simple. Optional API and body braking help improve transient performance by significantly reducing undershoot and overshoot, respectively. Integrated NexFET™ MOSFETs with low-loss switching facilitate high efficiency and deliver up to 40 A in a 5-mm × 7-mm PowerStack™ package with a layout friendly thermal pad. Two TPS543C20 devices can be stacked together to provide up to 80-A point-of-load.
The TPS543C20 employs an internally compensated emulated peak-current-mode control, with a clock synchronizable, fixed-frequency modulator for EMI-sensitive POL. The internal integrator and directly amplifying ramp tracking loop eliminate the need for external compensation over a wide range of frequencies thereby making the system design flexible, dense, and simple. Optional API and body braking help improve transient performance by significantly reducing undershoot and overshoot, respectively. Integrated NexFET™ MOSFETs with low-loss switching facilitate high efficiency and deliver up to 40 A in a 5-mm × 7-mm PowerStack™ package with a layout friendly thermal pad. Two TPS543C20 devices can be stacked together to provide up to 80-A point-of-load.
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS543C20RVFR |
|---|---|
| Current - Output | 40 A |
| Frequency - Switching (Max) | 2 MHz |
| Frequency - Switching (Min) | 300 kHz |
| Function | Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature (Max) | 125 °C |
| Operating Temperature (Min) | -40 °C |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Package / Case | 40-PowerLFQFN |
| Package Length | 7 mm |
| Package Name | 40-LQFN-CLIP |
| Package Width | 5 mm |
| Synchronous Rectifier | Yes |
| Topology | Buck |
| Voltage - Input (Max) | 16 V |
| Voltage - Input (Min) | 4 V |
| Voltage - Output (Max) | 5.5 V |
| Voltage - Output (Min/Fixed) | 0.6 V |
Pricing
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