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SLVS939B – JUNE 2009 – REVISED DECEMBER 2014 TPS55332-Q1 2.2-MHz, 60-V Output Step Up DC/DC Converter
1 Features 3 Description The TPS55332 is a monolithic high-voltage switching
regulator with integrated 3-A, 60-V power MOSFET.
The device can be configured as a switch mode stepup power supply with voltage supervisor. Once the
internal circuits have stabilized with a minimum input
supply of 3.6 V, the system can then have an input
voltage range from 1.5 V to 40 V, to maintain a fixed
boost output voltage. For optimum performance,
VIN/Vout ratios should be set such that the minimum
required duty cycle pulse > 150 ns. The supervisor
circuit monitors the regulated output and indicates
when this output voltage has fallen below the set
value. The TPS55332 has a switching frequency
range from 80 kHz to 2.2 MHz, allowing the use of
low profile inductors and low value input and output
capacitors. The external loop compensation gives the
user the flexibility to optimize the converter response …
