MP2303DN Monolithic Power Systems, MP2303DN Datasheet - Page 5

• Manufacturer Part Number: MP2303DN
• Description: 3A, 28V, 340khz Synchronous Rectified Step-down Converter
• Manufacturer: Monolithic Power Systems

TYPICAL PERFORMANCE CHARACTERISTICS
V
MP2303 Rev. 0.92
5/2/2006
IN
4.5
4.4
4.3
4.2
4.1
4.0
3.9
3.8
3.7
= 12V, V
-40
UVLO Rising vs.
Temperature
-20
TEMPERATURE ( o C)
O
TM
0
= 3.3V, L = 10µH, C1 = 10µF, C2 = 22µF x 2, T
MP2303 – 3A, 28V, 340KHz SYNCHRONOUS RECTIFIED, STEP-DOWN CONVERTER
20
95
90
85
80
75
70
65
60
55
50
0
Efficiency vs
Load Current
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40
0.5
LOAD CURRENT (A)
60
MP2303-TPC02
1.0
80
1.5 2.0
V
IN
V
= 24V
V
IN
INITIAL RELEASE – SPECIFICATIONS SUBJECT TO CHANGE
OUT
2.70
2.65
2.60
2.55
2.50
2.45
2.40
2.35
2.30
2.5
= 12V
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-40
Enable Lockout Threshold
= 2.5V
MP2303-EC02
vs. Temperature
3.0
www.MonolithicPower.com
-20
3.5
TEMPERATURE ( o C)
0
20
40
0.7850
0.810
0.805
0.800
0.795
0.790
0.780
MP2303-TPC03
60
A
= +25°C, unless otherwise noted.
-40
Feeback Voltage vs.
Temperature
80
-20
TEMPERATURE ( o C)
V
V
IN
IN
0
345
340
335
330
325
= 12V
= 28V
-40
20
Oscillator Frequency
V
IN
-20
40
= 4.75V
TEMPERATURE ( o C)
0
MP2303-TPC01
60
20
80
40
60
MP2303-TPC04
80
5