EL7554IREZT13 INTERSIL [Intersil Corporation], EL7554IREZT13 Datasheet - Page 8

• Manufacturer Part Number: EL7554IREZT13
• Description: Monolithic 4 Amp DC-DC Step-Down Regulator
• Manufacturer: INTERSIL [Intersil Corporation]

Waveforms
V
IN
= V
D
= 3.3V, V
FIGURE 16. VOLTAGE MARGINING
O
FIGURE 14. SHUT-DOWN
= 1.8V, I
FIGURE 12. START-UP
50µs/DIV
1ms/DIV
0.5ms/DIV
O
= 4A, L = 2.2µH, C
8
IN
TM
SEL
∆V
V
I
V
= 2x10µF, C
IN
EN
O
V
I
V
PG (2V/DIV)
O
IN
IN
O
(2A/DIV)
(2V/DIV)
(200mV/DIV)
(1A/DIV)
(1V/DIV)
(2V/DIV)
OUT
EL7554
= 47µF, C
OSC
= 220pF, T
FIGURE 17. OVER-VOLTAGE SHUT-DOWN
FIGURE 13. STEADY-STATE OPERATION
FIGURE 15. TRANSIENT RESPONSE
A
= 25°C unless otherwise noted.
100µs/DIV
0.5ms/DIV
1µs/DIV
∆V
V
∆V
3A
1.0A
I
∆V
PG
V
V
O
LX
O
LX
IN
O
O
January 31, 2005
(2V/DIV)
(2V/DIV)
(10mV/DIV)
(100mV/DIV)
(5V/DIV)
(100mV/DIV)
FN7360.2