TPS51275, TPS51275B and TPS51275C are
cost-effective, dual-synchronous buck controllers targeted for notebook system-power supply
solutions. It provides 5-V and 3.3-V LDOs and requires few external components. The 260-kHz VCLK
output can be used to drive an external charge pump, generating gate drive voltage for the load
switches without reducing the main converter efficiency. The TPS51275, TPS51275B and TPS51275C
supports high efficiency, fast transient response and provides a combined power-good signal.
Adaptive on-time, D-CAP™ control provides convenient and efficient operation. The device operates
with supply input voltage ranging from 5 V to 24 V and supports output voltages of 5.0 V and 3.3 V.
The TPS51275, TPS51275B and TPS51275C are available in a 20-pin, 3 mm x 3 mm, QFN package and is
specified from –40°C to 85°C.
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