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Design TPS54540-Q1
SLVSC56B – SEPTEMBER 2013 – REVISED NOVEMBER 2015 TPS54540-Q1 4.5-V to 42-V Input, 5-A, Step-Down DC-DC Converter With Eco-mode™
1 Features 3 Description The TPS54540-Q1 device is a 42-V, 5-A, step-down
regulator with an integrated high-side MOSFET. The
device survives load-dump pulses up to 65 V per ISO
7637. Current mode control provides simple external
compensation and flexible component selection. A
low-ripple pulse-skip mode reduces the no load
supply current to 146 ОјA. Shutdown supply current is
reduced to 2 ОјA when the enable pin is pulled low. 1 Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
– Device Temperature Grade 1: –40°C to 125°C
Ambient Operating Temperature Range
– Device HBM ESD Classification Level H1C
– Device CDM ESD Classification Level C3B
High-Efficiency at Light Loads With PulseSkipping Eco-modeв„ў
92-mО© High-Side MOSFET …
