BL8554 Datasheet, PDF (4/8 Pages) SHANGHAI BELLING CO., LTD. – 300mA High PSRR, Linear Regulator

BL8554
PSRR
Ilim
Vceh
Vcel
en
F=100Hz,
Ripple Rejection
Ripple=0.5Vp-p
Vin=Set Vout+1V
Short Current Limit
Vout=0V
CE Input Voltage “H”
1.5
CE Input Voltage “L”
0
Output Noise
BW=10Hz~100kHz
70
dB
500
mA
Vin
V
0.25
V
47
uVrms
NOTE:
Vdrop=Vin1-(Vout2*0.98) Vout2 is the output voltage when Vin=Vout1+1.0V and Iout=300mA.
Vin1 is the input voltage at which the output voltage becomes 98% of Vout1 after gradually decreasing the input voltage.
BLOCK DIAGRAM
Explanation
BL8554 series is a group of positive voltage output, low noise, low power consumption, low
dropout voltage regulator.
BL8554 can provide output value in the range of 1.0V~4.5V every 0.1V step. It also can be
customized on command.
BL8554 includes high accuracy voltage reference, error amplifier, current limit circuit and output
driver module.
BL8554 has excellent load and line transient response and good temperature characteristics,
which can assure the stability of chip and power system. And it uses trimming technique to
guarantee output voltage accuracy within±2%.
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