Texas Instruments' TPSM846C24 is a 35 A, fixed-frequency, step-down power module. This module incorporates a controller, power MOSFETs, an inductor, and associated components into a rugged, thermally enhanced, surface-mount package.
The user supplies the input and output capacitors along with a few other passive components to set the operating parameters of the module. Two modules can be configured to work in parallel to provide up to a 70 A, two-phase power solution. The 15 mm x 16 mm component footprint is easy to solder onto a printed circuit board and allows a compact, point-of-load design.
Features
- Complete integrated 35 A power solution
- Pin-compatible with TPSM846C23 (PMBus)
- Stackable up to 70 A with current sharing
- Output voltage range: 0.5 V to 2 V
- Output voltage accuracy as tight as 0.5%
- 15 mm x 16 mm footprint (6.4 mm max. height)
- 300 kHz to 1 MHz switching frequency
- Synchronization to an external clock
- Differential remote sense
- Power-good output
- Prebias output monotonic start-up
- Fixed 3 ms soft-start/soft-stop time
- Overcurrent protection
- Operating IC junction range: -40°C to +125°C
- Operating ambient range: -40°C to +105°C
- Enhanced thermal performance: 8.7°C/W
- Meets EN55022 Class A emissions
Applications
- Compact PCI, PCI Express®, and PXI express
- Broadband and communications infrastructure
- Automated tests and medical equipment
- DSP, FPGA, and ASIC point-of-load applications
