Datasheet

Performance Characteristics

www.ti.com

4 Performance Characteristics

Turn-on Waveforms

Figure 2 shows the output voltage during a typical start-up with a 20V input and a load of 150 mA. There

is no overshoot during startup.

Output Ripple Waveforms

Figure 3 shows the transient response for a load of change from 15 mA to 150 mA. The upper trace

shows minimal output voltage droop and overshoot during the sudden change in output current shown by

the lower trace.

Conditions:

Input Voltage = 20VDC

Output Current = 150 mA

Trace 1:

Output Voltage

Volts/div = 10V

Horizontal Resolution = 4.0 ms/div

Figure 2. Output Voltage During a Typical Start-Up With a 20V Input and a Load of 150 mA

Conditions:

Input Voltage = 20VDC

Output Current = 15 mA to 150 mA

Upper Trace:

Output Voltage

Volts/div = 500 mV

Lower Trace:

Output Current

150 mA to 15 mA to 150 mA

Horizontal Resolution = 0.4 ms/div

Figure 3. Transient Response for a Load of Change From 15 mA to 150 mA

AN-1956 LM5001 Boost Evaluation Board SNVA393B–March 2009–Revised April 2013

Submit Documentation Feedback