TPS2051BDGN – TEXAS INSTRUMENTS

The TPS2051BDGN is a single-channel, 4A synchronous buck converter from Texas Instruments, packaged in a space-saving 6-pin WSON (WCSP-6) package. It operates from a wide input voltage range of 2.7V to 5.5V, efficiently regulating output voltage down to a minimum of 0.8V. This device features internal MOSFETs, eliminating the need for external components and simplifying design. The TPS2051BDGN boasts high efficiency, typically exceeding 90% at moderate loads, thanks to its synchronous architecture and low Rds(on) MOSFETs. Its internal compensation significantly reduces external component count, further simplifying PCB layout._x000D_
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Key features include programmable output voltage through an external resistor divider, soft-start capability to minimize inrush current, and overcurrent protection for robust operation. Typical applications include powering high-current peripherals from a battery supply in portable devices, powering memory modules, and powering low-voltage logic circuits from a higher-voltage source. The combination of its compact footprint, high efficiency, and integrated protection mechanisms makes the TPS2051BDGN an ideal choice for space-constrained, high-reliability applications requiring precise voltage regulation at modest current levels. Its simplicity allows for rapid prototyping and streamlined design iterations.