BL8516
DEMOꢀBOARDꢀBOMꢀ
ꢀꢀ Tableꢀ1ꢀBillꢀofꢀMaterialsꢀ
No. Reference
Type
Capacitorꢀ
Capacitorꢀ
Capacitorꢀ
Diodeꢀ
Specification
TantalumꢀCapacitor;ꢀ25V/47uF;ꢀSMDꢀ
TantalumꢀCapacitor;ꢀ25V/22uF;ꢀSMDꢀ
MLCCꢀ10nF;ꢀSMDꢀ0805ꢀ
SS34;ꢀ40V,ꢀ3A;ꢀSMDꢀ
Note
1ꢀ C1ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
2ꢀ C2ꢀ
3ꢀ C3ꢀ
4ꢀ D1ꢀ
5ꢀ D3ꢀ
Diodeꢀ
1N4148;ꢀ75V;ꢀ100mA;ꢀSMDꢀ1206ꢀ
10uH;ꢀ3A;ꢀSMD,ꢀShieldingꢀ
BL8516;ꢀSMDꢀSOPꢁ8ꢀ
6ꢀ L1ꢀ
Inductorꢀ
ICꢀ
7ꢀ IC1ꢀ
8ꢀ R1ꢀ
Resistorꢀ
Resistorꢀ
SMDꢀ0805;ꢀ1%ꢀ
Noteꢀ1ꢀ
Noteꢀ1ꢀ
9ꢀ R2ꢀ
SMDꢀ0805;ꢀ1%ꢀ
Note1: For VOUT=5V, R1 is 9.1K and R2 is 3K.
For VOUT=3.3V, R1 is 3.3K and R2 is 2K.
DEMOꢀBOARDꢀMEASUREMENTꢀꢀ
Load Regulation
(VOUT=5V)
Efficiency vs. Load Current
(VOUT=5V)
6
5
4
3
2
1
0
100
90
80
70
60
50
40
30
20
10
0
0
200
400
600
800
1000
1200
0
200
400
600
800
1000
1200
Output Current(mA)
Output Current(mA)
VIN=7V
VIN=12V
VIN=20V
VIN=7V
VIN=12V
VIN=20V
Load Regulation
(VOUT=3.3V)
Efficiency vs. Load Current
(VOUT=3.3V)
4
3
2
1
0
100
90
80
70
60
50
40
30
20
10
0
0
200
400
600
800
1000
1200
0
200
400
600
800
1000
1200
Output Current(mA)
Output Current(mA)
VIN=7V
VIN=12V
VIN=20V
VIN=7V
VIN=12V
VIN=20V
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