MP3212 MPS, MP3212 Datasheet - Page 5

• Manufacturer Part Number: MP3212
• Description: 1.3a, 1mhz Step-up Regulator With Integrated Input Disconnect Switch
• Manufacturer: MPS

TYPICAL PERFORMANCE CURVES
V
500mA/div.
MP3212 Rev. 0.9
3/21/2008
200mV/div.
500mA/div.
50mV/div.
I
I
INDUCTOR
V
INDUCTOR
IN
V
10V/div.
10V/div.
OUT
OUT
= 3.3V, V
V
V
-0.5
-1.0
/AC
1.0
0.5
0.0
/AC
SW
SW
0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2
Load Regulation
PFM Operation
No Load
Transient Response
I
OUT
OUTPUT CURRENT (mA)
=50mA-100mA
OUT
MP3212–1.3A, 1MHz, STEP-UP REGULATOR WITH INTEGRATED INPUT DISCONNECT SWITHCH
V
IN
= 18V, T
V
200us/div
=3.3V
400us/div
IN
=5V
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
A
= +25ºC, unless otherwise noted.
500mA/div.
50mV/div.
I
I
INDUCTOR
INDUCTOR
V
10V/div.
10V/div.
OUT
5V/div.
1A/div.
V
V
V
/AC
OUT
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SW
SW
-0.2
-0.4
-0.6
-0.8
-1.0
1.0
0.8
0.6
0.4
0.2
0.0
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Startup
I
PWM Operation
I
Line Regulation
2
OUT
OUT
=0
2.5
=130mA
I
OUT
INPUT VOLTAGE(V)
=60mA
400ns/div
3
I
1ms/div
OUT
3.5
=100mA
I
OUT
4
=0
4.5
5
200mV/div.
500mA/div.
I
I
INDUCTOR
V
INDUCTOR
10V/div.
10V/div.
OUT
5V/div.
1A/div.
V
V
V
/AC
OUT
1.45
1.35
1.25
1.15
1.05
SW
SW
1.5
1.4
1.3
1.2
1.1
1
20
SW peak current limit vs.
Duty Cycle
Transient Response
I
Startup
I
OUT
OUT
30
=0mA-50mA
=100mA
DUTY CYCLE (%)
40
1ms/div
400us/div
50
60
70
80
5