BL8503
Vin=4.0V
1mA≤Iout≤100mA
Vout
Load Regulation
20
40
mV
uA
Quiescent
Current
Iq
Vin=4V
3.0
5.0
Output Voltage
Temperature
Coefficient
Vout
T Vout
Iout=10mA
50
ppm/C
BL8503-5.0V
Symbol
Vin
Parameter
Input Voltage
Output Voltage
Maximum
Output Current
Input-Output
Voltage
Conditions
Min
Typ
5.0
Max
8
5.1
Units
V
V
Vout
4.9
Iout(Max.)
Vin=6V,Vout>4.9V
Iout=100mA
250
mA
170
320
300
500
Dropout
Voltage
mV
Iout=200mA
Differential
Vout
Vin Vout
Iout=40mA
5.2V≤Vin≤8V
Line Regulation
0.2
0.3
%/V
Vin=6.0V
1mA≤Iout≤100mA
Load Regulation
20
40
mV
uA
Vout
Quiescent
Current
Iq
Vin=6V
3.0
5.0
Output Voltage
Temperature
Coefficient
Vout
T Vout
Iout=10mA
50
ppm/C
Typical Application Circuit：
Application hints：
NOTE1 ： Input capacitor (Cin=1uF) is
recommended in all application circuit.
Tantalum capacitor is recommended.
NOTE2 ： Output capacitor (Cout=1uF) is
recommended in all application to
assure the stability of circuit. Tantalum
capacitor is recommended.
Explanation：
BL8503 is a series of low dropout voltage and low power consumption three pins regulator. Its
application circuit is very simple, which only needs two outside capacitors. It is composed of these
modules: high accuracy voltage reference, current limit circuit, error amplifier, output driver and
power transistor.
Current Limit module can keep chip and power system away from danger when load current is
more than 250mA.
BL8503 uses trimming technique to assure the accuracy of output value within±2%, at the
same time, temperature compensated is elaborately considered in this chip, which makes BL8503’s
temperature coefficient within 50ppm/℃。
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10/24/2016
Total 12 Pages
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