LP873220-Q1 Datasheet, PDF (60/69 Pages) Texas Instruments – LP873220-Q1 Dual High-Current Buck Converter and Dual Linear Regulator

LP873220-Q1
SNVSAT4 – SEPTEMBER 2017
www.ti.com
Figure 38. Buck Transient from PFM-to-PWM Mode
Figure 39. Buck Transient from PWM-to-PFM Mode
I_OUT = 0.1 A → 2 A → 0.1 A
T_R = T_F = 400 ns
Figure 40. Buck Transient Load Step Response, AUTO
Mode
I_OUT = 0.1 A → 2 A → 0.1 A
T_R = T_F = 400 ns
Figure 41. Buck Transient Load Step Response, Forced
PWM Mode
VOUT(200mV/div)
VOUT(200mV/div)
Time (400 µs/div)
Figure 42. Buck V_OUT Transition from 0.6 V to 1.4 V With
Different Slew Rate Settings
Time (400 µs/div)
Figure 43. Buck V_OUT Transition from 1.4 V to 0.6 V With
Different Slew Rate Settings
60
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