MIC23250-AAYMT MICREL [Micrel Semiconductor], MIC23250-AAYMT Datasheet - Page 6

• Manufacturer Part Number: MIC23250-AAYMT
• Description: 4MHz Dual 400mA Synchronous Buck Regulator with HyperLight Load
• Manufacturer: MICREL [Micrel Semiconductor]

Typical Characteristics (Continued)
Micrel, Inc.
June 2010
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
11
11
VIN = 2.7V
VIN = 4.2V
With Various Inductors
Efficiency V
Efficiency V
OUTPUT CURRENT (mA)
OUTPUT CURRENT (mA)
L = 1.5µH
L = 1.0µH
0
0
VIN = 3.0V
OUT
OUT
L = 1µH
C
V
C
VIN = 3.6V
100
100
IN
OUT
OUT
L = 0.47µH
= 3.6V
= 1.8V
= 1.8V
= 4.7µF
= 4.7µF
1000
1000
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
11
11
VIN = 3.6V
VIN = 4.2V
V
V
Load1 = Load2
L1 = L2 = 1µH
C
Efficiency V
Dual Output Efficiency
OUT1
OUT2
OUT1
VIN = 2.7V
OUTPUT CURRENT (mA)
OUTPUT CURRENT (mA)
= 1.575V
= 1.8V
= C
0
VIN = 3.3V
0
OUT2
VIN = 3.0V
6
OUT
= 4.7µF
VIN = 3.6V
L = 1µH
C
VIN = 4.2V
100
100
OUT
= 2.5V
= 4.7µF
1000
1000
100
90
80
70
60
50
40
30
20
10
0
11
Efficiency V
VIN = 5.0V
OUTPUT CURRENT (mA)
VIN = 4.2V
0
OUT
M9999-061110-E
VIN = 5.5V
L = 1µH
C
100
OUT
= 3.3V
MIC23250
= 4.7µF
1000