ER3110DI Datasheet, PDF (10/23 Pages) Altera Corporation – Synchronous Buck Regulator

Page 10
Measurements
F_SW = 500kHz, V_PVIN = 24V, V_OUT = 3.3V, T_A = +25°C (Continued)
SW 20V/DIV
SW 20V/DIV
V_OUT 2V/DIV
I_L 500mA/DIV
POK 2V/DIV
5ms/DIV
FIGURE 23. START-UP AT 1A, PWM
V_OUT 2V/DIV
I_L 500mA/DIV
200µs/DIV
POK 2V/DIV
FIGURE 24. SHUTDOWN AT 1A, PWM
SW 20V/DIV
V_OUT 2V/DIV
I_L 500mA/DIV
POK 2V/DIV
5ms/DIV
FIGURE 25. START-UP AT 1A, PFM
SW 20V/DIV
V_OUT 2V/DIV
I_L 500mA/DIV
200µs/DIV
POK 2V/DIV
FIGURE 26. SHUTDOWN AT 1A, PFM
SW 5V/DIV
5ns/DIV
FIGURE 27. JITTER AT NO LOAD, PWM
SW 5V/DIV
5ns/DIV
FIGURE 28. JITTER AT 1A LOAD, PWM
Enpirion Power Datasheet ER3110DI Wide PVIN 1A Synchronous Buck Regulator
10038
May 28, 2014
May 2014 Altera Corporation
Rev A