BL8569
Dual 500mA High PSRR Linear Regulator
DESCRIPTION
BL8569 dual,low-noise,low-dropout regulator
delivers at least 500mA of continuous output
current. The output voltage for each regulator
is set independently by trimming.Voltages are
selectable in 100mV steps within a range of
1.2V to 4.5V. The BL8569 includes two
independent logic-controlled shutdown inputs
and allows the output of each regulator to be
turned of independently.
BL8569 includes high accuracy voltage
reference, error amplifier, current limit circuit
and output driver module.
BL8569 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%.
BL8569 is available in SOT-23-6 package
which is lead(Pb)- free
FEATURES
•
•
•
•
•
•
•
•
•
•
•
Two low dropout voltage regulators
500mA output current for each LDO
Low output noise (50uVRMS)
Low dropout Voltage:0.08V@150mA(Typ)
Standby Mode: 0.1uA
High Ripple Rijection:72dB@1000Hz (Typ)
Excellent Line regulation: 0.05%/V
Independent Shutdown controls
1.2V to 4.5V Factory-Preset Output
Output Current Limit
Highly Accurate:
±2%
APPLICATIONS
•
•
•
•
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Cellular phones
Cordless phones and radio
communication equipment
Battery Powered equipment
Notebook and hand-hold equipment
Wireless LAN
GPS receivers
TYPICAL APPLICATION
ELECTRICAL CHARACTERISTICS
PSRR
80
70
60
PSRR(dB)
50
40
30
20
10
Vout=3.3V
APPLICATION HINTS
NOTE:
Input capacitor (Cin=1uF) and Output
capacitor (Cout=1uF/3.3uF) are
recommended in all application circuit.
0
0.01
0.1
1
10
100
1000
Freq(KHz)
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BL8569
ORDERING INFORMATION
BL8569
□□□□□
1 2 3 4 5
PIN CONFIGURATION
Product
Classification
Marking
BL8569CB6TR□□
Code
1
□
2
□
3
□
Description
Temperature&Rohs:
C:-40~85°C ,Pb Free Rohs Std.
Package type:
B6:SOT-23-6
Packing type:
TR:Tape&Reel (Standard)
CH1 Output voltage:
e.g. 15=1.5V
28=2.8V
45=4.5V
CH2 Output voltage:
e.g. 15=1.5V
28=2.8V
45=4.5V
L
:Product
LXZZ
Code
X:Output
Voltage
ZZ:Data
Code
4
□
Vss
Vin
Vout1
CE1
CE2
Vout2
Ground Pin
Supply Voltage Input
CH1 Output Voltage
Chip Enable1
Chip Enable2
CH2 Output Voltage
5
□
MARKING DESCRIPTON
L
:
Product Code
X: Output Voltage
Code
B
C
D
E
G
H
I
J
Vout1
1.5V
1.5V
1.5V
1.5V
1.8V
1.8V
1.8V
1.8V
Vout2
2.8V
3.0V
3.3V
4.0V
2.5V
2.8V
3.0V
3.3V
Code
M
O
P
Q
R
S
T
U
Vout1
2.8V
2.8V
2.8V
3.0V
3.0V
3.0V
3.3V
3.3V
Vout2
1.8V
2.8V
3.0V
2.5V
3.0V
3.3V
1.8V
3.3V
ABSOLUTE MAXIMUM RATING
Parameter
Max Input Voltage
Operating Junction
Temperature(Tj)
Ambient
Temperature(Ta)
Power
SOT-23-6
Dissipation
Storage
Temperature(Ts)
Lead Temperature &
Time
Value
8V
125°C
-40°C -85°C
250mW
-40°C -150°C
260°C,10S
Z: The Year of manufacturing,”7” stands for year
2007,”8” stands for year 2008,and “
0
” stands for
year 2010.
Z: The week of manufacturing. ”A” stands for
week 1,”Z” stands for week 26,”
A
” stands for
week 27,”
Z
” stands for week 52.
Note:
Exceed these limits to damage to the device.
Exposure to absolute maximum rating
conditions may affect device reliability.
RECOMMENDED WORK
CONDITIONS
Parameter
Input Voltage Range
Ambient Temperature
Value
Max. 6V
-40°C –85°C
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BL8569
BLOCK DIAGRAM
Explanation
BL8569 series are highly accurate ,Dual,low noise,CMOS low dropout voltage regulators.
The output voltage for each regulator is set independently by trimming. Voltages are selectable in
100mV steps within a range of 1.2V to 4.5V . It also can be customized on command.
BL8569 includes high accuracy voltage reference, error amplifier, current limit circuit and output
driver module.
BL8569 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%.
www.belling.com.cn
4
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