Description:

The TPSM8282x device family comprises 1-A, 2-A, and 3-A 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 to simplify design, reduce external components, and save printed circuit board (PCB) area. The TPSM8282x is available in two versions. The first version automatically enters Power Save Mode to maintain high efficiency during ultra-light load conditions, thereby extending the operating time of the system battery. The second version, TPSM8282xA, enables forced PWM operation to maintain continuous conduction mode (CCM) for all load currents, minimizing the output voltage ripple. In PWM mode, the converter operates at a nominal switching frequency of 4MHz. In Power Save Mode, the device features a typical quiescent current of 4µA. By utilizing the DCS-Control topology, the device achieves excellent load transient performance and precise output voltage regulation. The EN and PG pins of the device support sequencing configurations, enabling flexible system design. The integrated soft-start feature reduces inrush current required from the input supply. 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 from 0.6V to 4V

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

Operating quiescent current: 4µA

DCS-Control topology

Power Save Mode for high 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

PLCs (Programmable Logic Controllers)

Wired networking