TI has 3mm x 3.8mm DC/DC power modules

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The 0.5-A LMZM23600 and 1-A LMZM23601 DC/DC step-down converters achieve up to 92% efficiency, which minimizes energy loss, and feature MicroSIP packaging

The converters expand TI’s power module portfolio to address up to 1-A performance-driven, space-constrained communication and industrial designs, including field transmitters, ultrasound scanners and network security cameras.

The LMZM23600 and LMZM23601 modules are offered with either fixed 5-V or 3.3-V output voltages, or with external synchronization and adjustable 2.5-V to 15-V output voltages.

The LMZM23601 features a mode pin that allows flexibility to operate at a fixed frequency for low electromagnetic interference (EMI), or an automatic pulse frequency modulation control mode for high efficiency at light loads.