BL8523
DEMO BOARD BOM
No.
1
2
3
4
5
6
7
8
Reference
C1
C2
D1
L1
IC1
R1
R2
Q1
Type
Capacitor
Capacitor
Diode
Inductor
IC
Resistor
Resistor
MOSFET
Specification
Tantalum Capacitor; 25V/47uF; SMD
Tantalum Capacitor; 25V/47uF; SMD
SS34; 40V, 3A; SMD
10uH; 3A; SMD, Shielding
BL8523; SMD SOT23-5
SMD 0805; 1%
SMD 0805; 1%
2301;-20V,-3.4A,P-MOS;SMD SOT23-3
ELECTRICAL PERFORMANCE
(Test condition: Ta=25°C, configuration as what is listed in above demo board BOM, unless otherwise
noted.)
Efficiency Vs. Output Current
100.0
250
200
150
100
50
0
Standby Current Vs. Vin
95.0
85.0
Effiency (%)
80.0
75.0
70.0
65.0
Vin=3.6V
Vin=4V
Vin=5V
Vin=6V
Standby Current (uA)
90.0
60.0
55.0
50.0
0
200
400
600
Vout=3.3V
800
1000
Test condition:
The chip is on, system
in switching,
Iout=0mA
measure input current
3.50
4.00
4.50
5.00
5.50
6.00
6.50
3.00
Output Current (mA)
Vin (V)
Line Regulation at Iout=500mA
3.5
5
4.5
4
3.5
Vout (V)
Load regulation at Vin=6V
3.45
Vout (V)
3
2.5
2
1.5
1
0.5
0
3.4
3.35
3.3
3
3.5
4
4.5
Vin (V)
5
5.5
6
6.5
0
200
400
600
800
1000
Output current (mA)
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