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The RT7271A is a high efficiency, synchronous step-down DC/DC converter for applications operating from 4.5V to 17V and requiring up to 6A maximum load. The current mode architecture of RT7271A allows the transient response to be optimized. Cycle-by-cycle current limit provides protection against shorted output and soft-start eliminates input current surge during start-up. Fault conditions also include output under voltage protection, output over voltage protection, and thermal shutdown. The low current shutdown mode provides output disconnect, enabling easy power management in battery powered systems.
4.5V to 17V Input Voltage Range
6A Output Current
Current Mode Control
0.6V ± 1% Voltage Reference Over Temperature
Latch Off when Short Circuit
Monotonic Start-Up in Pre-biased Output
500kHz Switching Frequency
Low On-Resistance► 45mΩ of High Side MOSFET► 25mΩ of Low Side MOSFET
Cycle-by-Cycle Current Limit
Power Good Monitor for UVP & OVP
Input Under Voltage Lockout
Thermal Shutdown
RoHS Compliant and Halogen Free
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