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4.3 Output Turn On
Figure 3 shows the SW output voltage turn-on from SW enable for the TPS54120EVM with Vin = 12V, SW
OUT = 4.1V, LDO OUT = 3.3V, and Iout = 400mA, Fswitching = 480kHz.
Figure 3. Switcher Converter Output Voltage Turn-on, SW Enable
Figure 4 shows the LDO output voltage turn-on from LDO enable for the TPS54120EVM with Vin = 12V,
SW OUT = 4.1V, LDO OUT = 3.3V, and Iout = 400mA, Fswitching = 480kHz.
Figure 4. LDO Output Voltage Turn-on, LDO Enable
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TPS54120EVM, Low Noise 1A Power Supply Evaluation Module SLVU641– January 2012
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