EL7530(2004) 查看數據表（PDF） - Intersil

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EL7530
(Rev.:2004)

Monolithic 600mA Step-Down Regulator with Low Quiescent Current

Intersil 

EL7530

Performance Curves and Waveforms (Continued)

All waveforms are taken at VIN=3.3V, VO=1.8V, IO=600mA with component values shown on page 1 at room ambient temperature, unless

otherwise noted.

LX

(2V/DIV)

IL

(0.5A/DIV)

∆VO

(50mV/DIV)

2µs/DIV

FIGURE 12. PFM STEADY-STATE OPERATION WAVEFORM

(IO = 100mA)

LX

(2V/DIV)

IL

(0.5A/DIV)

∆VO

(10mV/DIV)

0.5µs/DIV

FIGURE 13. PWM STEADY-STATE OPERATION (IO = 600mA)

SYNC

(2V/DIV)

LX

(2V/DIV)

IL

(0.5A/DIV)

0.2µs/DIV

FIGURE 14. EXTERNAL SYNCHRONIZATION TO 2MHz

SYNC

(2V/DIV)

LX

(2V/DIV)

IL

(0.5A/DIV)

20ns/DIV

FIGURE 15. EXTERNAL SYNCHRONIZATION TO 12MHz

IO

(200mA/DIV)

∆VO

(100mV/DIV)

100µs/DIV

FIGURE 16. LOAD TRANSIENT RESPONSE (22mA to 600mA)

6

IO

(200mA/DIV)

∆VO

(100mV/DIV)

50µs/DIV

FIGURE 17. PWM LOAD TRANSIENT RESPONSE (30mA TO

600mA)

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