The TPS65286 is a full featured 4.5-V to 28-V VIN,
6-A output current synchronous step down DCDC converter, which is optimized for small designs
through high efficiency and integrating the high-side and low-side MOSFETs. The device also
incorporates dual N-channel MOSFET power switches for power distribution systems. This device
provides a total power distribution solution, where precision current limiting and fast protection
response are required.
A dual 100-m&937; independent power distribution switch limits the output current to a
programmable current limit threshold between typical 50 mA~2.7 A by using an external resistor. The
current limit accuracy can be achieved as tightly as ±6% at typical 1.2 A. The nFAULT output
asserts low under over-current and reverse-voltage conditions.
Constant frequency peak current mode control in the DCDC converter simplifies the
compensation and optimizes transient response. Cycle-by-cycle over-current protection and operating
in hiccup mode limit MOSFET power dissipation. When die temperature exceeds thermal over loading
threshold, the over temperature protection shuts down the device.
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