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SLVS751D – NOVEMBER 2007 – REVISED JULY 2015 TPS5430-Q1 3-A Wide-Input-Range Step-Down Converter
1 Features 3 Description The TPS5430-Q1 is a high output current PWM
converter that integrates a low-resistance high side
N-channel MOSFET. Included on the substrate with
the listed features are a high-performance voltage
error amplifier that provides tight voltage regulation
accuracy under transient conditions, an undervoltage
lockout (UVLO) circuit to prevent start-up until the
input voltage reaches 5.5 V, an internally set slowstart circuit to limit inrush currents, and a voltage
feed-forward circuit to improve the transient
response. Using the enable (ENA) pin, shutdown
supply current is reduced to 18 ОјA typically. Other
features include an active-high enable, overcurrent
limiting, overvoltage protection (OVP), and thermal
shutdown. To reduce design complexity and external
component count, the TPS5430-Q1 feedback loop is
internally compensated. The TPS5430-Q1 regulates …
