English
Language : 

ER3105DI Datasheet, PDF (12/25 Pages) Altera Corporation – 500mA Wide VIN Synchronous Buck Regulator
◁
Page 12
Typical Performance Curves
VIN = 24V, VOUT = 3.3V, FSW = 800kHz, TA = +25°C. (Continued)
SW 20V/DIV
VOUT 2V/DIV
EN 20V/DIV
POK 2V/DIV
500ms/DIV
FIGURE 34. SHUTDOWN IN NO LOAD, PFM
SW 20V/DIV
VOUT 2V/DIV
IL 500mA/DIV
POK 2V/DIV
5ms/DIV
FIGURE 36. START-UP AT 500mA, PWM
SW 20V/DIV
VOUT 2V/DIV
IL 500mA/DIV
POK 2V/DIV
5ms/DIV
FIGURE 38. START-UP AT 500mA, PFM
SW 20V/DIV
VOUT 2V/DIV
EN 20V/DIV
POK 2V/DIV
500ms/DIV
FIGURE 35. SHUTDOWN AT NO LOAD, PWM
SW 20V/DIV
VOUT 2V/DIV
IL 500mA/DIV
POK 2V/DIV
50µs/DIV
FIGURE 37. SHUTDOWN AT 500mA, PWM
SW 20V/DIV
VOUT 2V/DIV
IL 500mA/DIV
POK 2V/DIV
50µs/DIV
FIGURE 39. SHUTDOWN AT 500mA, PFM
ER3105DI 500mA Wide VIN Synchronous Buck Regulator
09616
March 14, 2014
March 2014 Altera Corporation
Rev A
 ▷