BL8554
300mA High PSRR, Linear Regulator
DESCRIPTION
BL8554 series is a group of positive voltage
output, 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%.
BL8554 is available in SOT-23-5, SC-70-5
and SOT23-3 packages which is lead free.
FEATURES
•
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Low Power Consumption: 25uA（Typ.）
Low output noise (47uVRMS)
Standby Mode: 0.1uA
Low dropout Voltage: 0.16V@300mA
(Typ.)
High Ripple Rejection: 73dB@100Hz
(Typ.)
Low
Temperature
Coefficient:
±
100ppm/°C
Excellent Line regulation: 0.05%/V
Build-in chip enable circuit
Output Voltage Range: 1.0V~4.5V
(customized on command every 0.1V
step)
Highly Accurate:
±2%
Output Current Limit
APPLICATIONS
•
Power source for cellular phones and
various kind of PCSs
•
Battery Powered equipment
•
Power Management of MP3, PDA, DSC,
Mouse, PS2 Games
•
Reference Voltage Source
•
Regulation after Switching Power
TYPICAL APPLICATION
Load Regulation
(VIN=4.5V)
Input
Cin
V
DD
V
OUT
Output
Cout
3.35
3.3
3.25
3.2
3.15
3.1
3.05
3
0
50
100
150
200
250
300
350
BL8554
CE
GND
On/Off
NOTE: Input capacitor (Cin=1uF) and Output
capacitor (Cout=3.3uF/4.7uF) are
recommended in all application circuit.
Vout(V)
Iout(mA)
ELECTRICAL CHARACTERISTICS
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BELLING [ SHANGHAI BELLING CO., LTD. ]
