bd8621efv ROHM Co. Ltd., bd8621efv Datasheet - Page 12

• Manufacturer Part Number: bd8621efv
• Description: Built-in 1ch Fet Synchronous Rectification Type Dc/dc Converters
• Manufacturer: ROHM Co. Ltd.

Fig.12
●Each characteristic reference data
0.810
0.808
0.806
0.804
0.802
0.800
0.798
0.796
0.794
0.792
0.790
100
1.50
1.40
1.30
1.20
1.10
1.00
90
80
70
60
50
40
30
20
10
0
10
0.0000
-25
VIN = 5V
Vout : 100mV/div
VIN = 3.3V
Reference voltage - Temperature characteristic
Io = 1A/div
VIN = 3.3V
0.5000
Fig.7
0
AMB IE NT T E MP E R AT UR E : T a [℃]
Fig.11 Regulation
Fig.9
100
1.0000
Output load response
Load current [mA]
負荷電流[mA]
LOAD CURRENT [A]
25
VIN = 5.0V
Efficiency
1.5000
1000
50
2.0000
VOUT = 1.2V
VIN = 5.0V
VOUT = 1.2V
2.5000
75
10000
3.0000
100
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Fig.13 SS Charging current - Temperature characteristic
5.0
4.8
4.5
4.3
4.0
3.8
3.5
3.3
3.0
-25
VIN = 3.3V
VIN = 5V
Io = 3A
Vout : 20mV/div
0
Fig.8
Fig.10 Soft start
AMB IE NT T E MP E R AT UR E : T a [℃]
25
Output ripple
1usec/div
10msec/div
VIN = 2V/div
VOUT = 0.5V/div
50
SS = 2V/div
75
100