Test Results

www.ti.com

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

6

TPS54120EVM, Low Noise 1A Power Supply Evaluation Module

SLVU641

– January 2012

Submit Documentation Feedback

Copyright

© 2012, Texas Instruments Incorporated