ER3110DI Datasheet, PDF (12/23 Pages) Altera Corporation – Synchronous Buck Regulator

Page 12
Measurements F_SW = 500kHz, V_PVIN = 24V, V_OUT = 3.3V, T_A = +25°C (Continued)
V_OUT 100mV/DIV
SW 20V/DIV
V_OUT 20mV/DIV
I_L 1A/DIV
200µs/DIV
FIGURE 35. LOAD TRANSIENT, PWM
I_L 1A/DIV
10µs/DIV
FIGURE 36. PFM TO PWM TRANSITION
SW 20V/DIV
V_OUT 2V/DIV
I_L 1A/DIV
POK 2V/DIV
50µs/DIV
FIGURE 37. OVERCURRENT PROTECTION, PWM
SW 20V/DIV
SYNC 2V/DIV
200ns/DIV
FIGURE 39. SYNC AT 1A LOAD, PWM
SW 20V/DIV
V_OUT 2V/DIV
I_L 1A/DIV
10ms/DIV
POK 2V/DIV
FIGURE 38. OVERCURRENT PROTECTION HICCUP, PWM
SW 20V/DIV
V_OUT 5V/DIV
I_L 1A/DIV
POK 2V/DIV
20µs/DIV
FIGURE 40. NEGATIVE CURRENT LIMIT, PWM
Enpirion Power Datasheet ER3110DI Wide PVIN 1A Synchronous Buck Regulator
10038
May 28, 2014
May 2014 Altera Corporation
Rev A