Texas Instruments TPSM8287A1xM DC/DC Power Modules

Texas Instruments TPSM8287A1xM DC/DC Power Modules combine differential remote sensing and an I²C interface. The TPSM8287A1xM pin-to-pin DC/DC power modules integrate a synchronous step-down converter, an inductor, and input capacitors to simplify design, reduce external components, and conserve PCB area. The low-profile and compact format is developed for assembly by standard surface mount equipment.

The TI TPSM8287A1xM facilitates an enhanced control scheme that supports fast transients. The devices perform in fixed-frequency or power-save mode. The remote sensing characteristic optimizes voltage regulation at the point-of-load, and the device reaches ±1.0% DC voltage accuracy over the entire temperature range. The devices can operate in stacked, paralleled modes to produce higher output currents or to spread the power dissipation across multiple devices. The I²C-compatible interface provides several control, monitoring, and warning features. The start-up voltage is selectable through the VSETx pins to enable a power-up without an active I²C communication.

Features

-55°C to +125°C operating temperature range
Differential remote sensing
Five selectable I²C addresses through VSETx pins
Adjustable external compensation for wide output capacitor range and optimized transient response
Designed for low EMI requirements
- No bond wire package
- Internal input capacitors
- Simplified layout through a parallel input path
- Optional synchronization to an external clock or spread-spectrum operation

±1.0% output voltage accuracy
Parallelable for multi-phase operation
Start-up output voltage selectable in 50mV steps from 0.40V to 3.35V through VSETx pins and I²C adjustable in 1.25mV steps
Power save mode or forced-PWM operation
Precise enable input threshold
Power-good output with window comparator
Active output discharge
Excellent thermal performance
4.5mm x 6.8mm QFN package with 0.5mm pitch
77mm² design size