TPS543B20 Synchronous Step-Down SWIFT™ Converter

By Texas Instruments 55

Texas Instruments' TPS543B20 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 asynchronous pulse injection (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 25 A in a 5 mm x 7 mm PowerStack™ package with a layout friendly thermal pad.

Features
Internally-compensated advanced current mode control 25 A POL Input voltage range: 4 V to 19 V Output voltage range: 0.6 V to 5.5 V Integrated 4.1/1.9 mΩ stacked NexFET power stage with lossless low-side current sensing Fixed frequency - synchronization to an external clock and/or sync out Pin strapping programmable switching frequency from 300 kHz to 2 MHz		Pin strapping programmable reference from 0.6 V to 1.1 V with 0.5% accuracy Differential remote sensing Safe start-up into pre-biased output High-accuracy hiccup current limit API and body braking 40-pin, 5 mm x 7 mm LQFN package with 0.5 mm pitch and single thermal pad Create a custom design using the TPS543B20 with the WEBENCH^® Power Designer
Applications
Wireless and wired communications infrastructure equipment Enterprise servers, switches, and routers		Enterprise storage, SSD ASIC, SoC, FPGA, DSP core and I/O rails

新製品:

TPS543B20RVFTTPS543B20EVM-799

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Eval/Dev ToolSemiconductors & Dev ToolsTexas Instruments

TPS543B20 Synchronous Step-Down SWIFT™ Converter

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