Description：

The TPSM8282x device family comprises 1A, 2A, and 3A step-down converter MicroSiP™ power modules, optimized for small solution size and high efficiency. The power module integrates a synchronous step-down converter and an inductor, simplifying design, reducing external components, and saving printed circuit board (PCB) area. The TPSM8282x is available in two versions. The first version automatically enters power-save mode to maintain high efficiency under ultra-light load conditions, extending system battery run-time. The second version, TPSM8282xA, enables forced PWM operation to maintain continuous conduction mode at all currents, minimizing output voltage ripple. In PWM mode, the converter operates at a nominal switching frequency of 4MHz. In power-save mode, the device draws a typical quiescent current of 4µA. By employing the DCS-Control topology, the device achieves excellent load transient performance and accurate output voltage regulation. The EN and PG pins support sequencing configurations, enabling flexible system design. The integrated soft-start function reduces the inrush current that the input power supply must deliver. Over-temperature protection and hiccup short-circuit protection make the solution robust and reliable.

Features：

• 1.1mm MicroSiP™ power module

• Meets CISPR 11 Class B requirements

• Efficiency up to 95%

• Input voltage range: 2.4V to 5.5V

• Adjustable output voltage: 0.6V to 4V

• Fixed output voltage options available: 1.2V, 1.8V, 2.5V, and 3.3V

• Operating quiescent current: 4µA

• DCS-Control topology

• Power-save mode option for light-load efficiency

• Forced PWM option for CCM operation

• 100% duty cycle for lowest dropout

• Hiccup short-circuit protection

• Output discharge

• Power-good output with window comparator

• Integrated soft start

• Over-temperature protection

• PSpice models available for: TPSM82821, TPSM82822, and TPSM82823

• Available in a 2.0mm × 2.5mm × 1.1mm, 10-pin µSiL package

• 12mm² total solution size (for fixed output voltage versions)

Applications：

• Optical modules

• Machine vision

• Industrial PCs

• PLC

• Wired networking