TM
MP2303 – 3A, 28V, 340KHz SYNCHRONOUS RECTIFIED, STEP-DOWN CONVERTER
INITIAL RELEASE – SPECIFICATIONS SUBJECT TO CHANGE
TYPICAL PERFORMANCE CHARACTERISTICS
(continued)
V
IN
= 12V, V
O
= 3.3V, L = 10µH, C1 = 10µF, C2 = 22µF x 2, T
A
= +25°C, unless otherwise noted.
Power Off through Enable
V
IN
= 24V, V
OUT
= 3.3V, I
OUT
= 2A
V
OUT
1V/div.
V
OUT
1V/div.
I
L
1A/div.
V
EN
5V/div.
I
L
1A/div.
V
SW
10V/div.
4ms/div.
MP2303-TPC05
MP2303-TPC06
Steady State Test
V
IN
= 12V, V
OUT
= 3.3V, I
OUT
= 1A
Load Transient Test
V
IN
= 24V, V
OUT
= 3.3V,
I
OUT
= 0A-1A step with C
FF
= 470pF
V
COMP
200mV/div.
V
OUT
100mV/div.
V
OUT
1V/div.
V
COMP
1V/div.
Short Circuit Protection
V
IN
= 24V, V
OUT
= 3.3V, I
OUT
= 0A
V
IN
200mV/div.
I
L
500mA/div.
V
OUT
AC Coupled
10mV/div.
I
L
1A/div.
V
SW
20V/div.
MP2303-TPC07
MP2303-TPC08
I
L
2A/div.
MP2303-TPC09
MP2303 Rev. 0.92
5/2/2006
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