MP2359 MPS, MP2359 Datasheet - Page 4

• Manufacturer Part Number: MP2359
• Description: 1.4MHz Step-Down Converter
• Manufacturer: MPS

TYPICAL PERFORMANCE CHARACTERISTICS
V
10V/div.
MP2359 Rev. 1.1
6/23/2006
1V/div.
1A/div.
5V/div.
1V/div.
1A/div.
V
IN
V
OUT
V
V
OUT
3.0
2.5
2.0
1.5
1.0
0.5
EN
SW
= 12V, V
I
L
I
0
L
0
Short Circuit Entry
Current Limit vs
Duty Cycle
Start-up through Enable
I
OUT
20
= 1A Resistive Load
DUTY CYCLE (%)
OUT
TM
40
= 3.3V, L = 4.7µH, C1 = 10µF, C2 = 22µF, T
60
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
80
MP2359 – 1.2A, 24V, 1.4MHz STEP-DOWN CONVERTER IN A TSOT23-6
100
AC Coupled
50mV/div.
10V/div.
1A/div.
5V/div.
2V/div.
1A/div.
1A/div.
1V/div.
1A/div.
I
LOAD
V
V
V
V
V
OUT
OUT
OUT
SW
EN
I
I
I
L
L
L
© 2006 MPS. All Rights Reserved.
Shut-down through Enable
No Load
Short Circuit Recovery
www.MonolithicPower.com
A
= +25ºC, unless otherwise noted.
(continued)
500mA/div.
500mA/div.
20mV/div.
10V/div.
10V/div.
10V/div.
1V/div.
5V/div.
2V/div.
1A/div.
5V/div.
V
V
V
V
V
V
OUT
V
OUT
OUT
V
SW
SW
EN
SW
EN
I
I
I
L
L
L
Shut-down through Enable
I
Steady State Test
I
Start-up through Enable
No Load
OUT
OUT
= 1A Resistive Load
= 0.5A
400ns/div.
4