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PDF BL8566 Data sheet ( Hoja de datos )
| Número de pieza | BL8566 | |
| Descripción | Dual 300mA High PSRR LDO | |
| Fabricantes | BELLING | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de BL8566 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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BL8566
Dual 300mA High PSRR LDO
FEATURES
• Two low dropout voltage regulators
• 300mA output current for each LDO
• 20uA operating supply current per LDO
• Low 47uVRMS output noise
• Standby Mode: 0.1uA
• Low 160mV dropout at 300mA load
• 73dB PSRR at 100Hz
• Excellent Line regulation: 0.05%/V
• Independent Shutdown controls
• 1.5V to 4.5V Factory-Preset Output
• Output Current Limit
• High Accuracy: ±2% (±1% customized)
APPLICATIONS
• Cellular phones
• Cordless phones and radio
communication equipment
• Battery Powered equipment
• Notebook and hand-hold equipment
• Wireless LAN
• GPS receivers
ORDERING INFORMATION
DESCRIPTION
The BL8566 is a dual,low-noise,low-
dropout regulator delivering at least 300mA 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 1.5V to 4.5V.Typical
output noise is 47uVrms,and PSRR is 73dB
at 100Hz. The BL8566 includes two
independent logic-controlled shutdown inputs
and allows the output of each regulator to be
turned of independently.
The BL8566 includes high accuracy
voltage reference, error amplifier, current limit
circuit and output driver module.
The BL8566 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%.
The BL8566 is available in SOT-23-6
package which is lead(Pb)- free
BL8566 –X X XX
Code
B
C
D
E
G
H
I
J
M
Package:R6:SOT-23-6
Operating temperature range
C:commercial standard
P：Pb free
Output Voltage：
Vout1
1.5V
1.5V
1.5V
1.5V
1.8V
1.8V
1.8V
1.8V
2.8V
Vout2
2.8V
3.0V
3.3V
4.0V
2.5V
2.8V
3.0V
3.3V
1.8V
Code
N
O
P
Q
R
S
T
V
Vout1
2.8V
2.8V
2.8V
3.0V
3.0V
3.0V
3.3V
3.3V
Vout2
2.5V
2.8V
3.0V
2.5V
3.0V
3.3V
1.8V
2.8V
TYPICAL APPLICATION
APPLICATION HINTS
NOTE: Input capacitor (Cin=1uF) and Output
capacitor (Cout=1uF/3.3uF) arerecommended
in all application circuit.
www.belling.com.cn
-1-
Total 7 Pages
4/10/2008
1 page  
BL8566
Dual 300mA High PSRR LDO
TYPICAL PERFORMANCE CHARACTERISTICS
1) Output Voltage vs. Output Current (with
output short protection)
2) Output Voltage vs. Input Voltage
Current limit Vs. Vout
3.5
3
2.5
2
1.5
1
0.5
0
0 200 400 600 800 1000 1200 1400 1600
Iload(mA)
3) Dropout Voltage vs. Output Current
Dropout & Iout
180
160
140
120
100
80
60
40
20
0
0
Vout=3.3V
50 100 150 200 250 300 350
Iout(mA)
Line Regulation
3.313
3.3125
3.312
3.3115
3.311
3.3105
3 3.5 4 4.5 5 5.5 6
VIN(V)
Iout=14(mA)
4) Ripple rejection vs. Frequency
P SRR
80
70
60
50
40
30
20
10
0
0.01
Vout=3.3V
0.1 1
10
Freq(KHz)
100 1000
www.belling.com.cn
-5-
Total 7 Pages
4/10/2008
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet BL8566.PDF ] | |
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