Description：

The TPSM8282x device family comprises 1-A, 2-A, and 3-A step-down converters in a MicroSiP™ power module, 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 offers two versions. The first version automatically enters power-save mode to maintain high efficiency under ultra-light load conditions, extending battery runtime in the system. 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 4 MHz. In power-save mode, the device features a typical quiescent current of 4 µA. Using the DCS-Control topology, the device achieves excellent load transient performance and precise output voltage regulation. The EN and PG pins support sequencing configurations for flexible system design. The integrated soft-start reduces inrush current required from the input power supply. Over-temperature protection and hiccup short-circuit protection make the solution robust and reliable.

Features：

• 1.1-mm MicroSiP™ power module

• Meets CISPR 11 Class B requirements

• Up to 95% efficiency

• 2.4-V to 5.5-V input voltage range

• 0.6-V to 4-V adjustable output voltage

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

• 4-µA operating quiescent current

• DCS-Control topology

• Power-save mode option for light-load efficiency

• Forced PWM option for continuous conduction mode (CCM) operation

• 100% duty cycle for lowest dropout

• Hiccup short-circuit protection

• Output discharge

• Power-good output with window comparator

• Integrated soft-start

• Thermal overload protection

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

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

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

Applications：

• Optical modules

• Machine vision

• Industrial PCs

• PLCs (Programmable Logic Controllers)

• Wired networking