BELLING BL8558

BL8558
Low noise, fast response 500mA LDO regulator
:
General Description:
Features:
:
•
•
•
•
•
•
•
•
•
Low Power Consumption: 75uA(Typ.)
BL8558 series is a group of positive
voltage output, low power consumption,
low dropout voltage regulator.
Low output noise (47uVRMS)
Standby Mode: 0.1uA
Low dropout Voltage: [email protected] (Typ.)
BL8558 can provide output value in the
range of 1.2V~4.5V every 0.1V step. It
also can be customized on command.
High Ripple Rejection: [email protected] (Typ.)
Low Temperature Coefficient: ±100ppm/°C
BL8558 includes high accuracy voltage
reference, error amplifier, current limit
circuit and output driver module with
discharge capability.
Excellent Line regulation: 0.05%/V
Build-in chip enable and discharge circuit
Output Voltage Range: 1.2V~4.5V
(customized on command every 0.1V step)
•
•
BL8558 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%.
Highly Accurate: ±2% (±1% customized)
Output Current Limit
Applications:
:
• Power source for cellular phones and
various kind of PCSs
•
•
BL8558 is available in SOT-23-5,
SOT89-3, SOT23-3, TO92 packages
which are lead free.
Battery Powered equipment
Power Management of MP3, PDA, DSC,
Mouse, PS2 Games
•
•
Reference Voltage Source
Regulation after Switching Power
BL8558 Typical Performance
Characteristics:
:
BL8558 Typical Application Circuit
BL8558
Vout(V)
BL8558-2.8V Output
2.9
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2
0
200
400
600
Iload(mA)
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- 1Total 10 Pages
8/16/2006
BL8558
Selection Guide:
:
BL8558-XX X X
Package Type:
SA:SOT-89-3
SB:SOT-89-3
RM:SOT-23-3
RN:SOT-23-5 A type Pin assignment
RC:SOT-23-5 C type Pin assignment
T: TO-92
Features:
P:Standard(defualt、lead free)
C:Customized
Output Voltage:
12……1.2V
15……1.5V
28……2.8V
30……3.0V
35……3.5V
……
45……4.5V
:
Pin Assignment:
BL8558-XXPSA
BL8558-XXPSB
A type
BL8558-XXPRM
BL8558-XXPRN
C type
BL8558-XXPT
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BL8558-XXPRC
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8/16/2006
BL8558
Pin Description:
:
Pin Number
SOT-89-3
(A)
SOT-89-3
(B)
SOT-23-5
(PRN)
SOT-23-5
(PRC)
1
3
2
3
2
1
5
1
2
3
4
4
5
2
1
3
SOT23-3
TO-92
2
3
1
3
1
2
Symbol
Function
Vout
Vin
Vss
CE
NC
Output pin
Input Pin
Ground Pin
Chip Enable Pin
No Connection
Product Classification:
:
Output
Voltage
Package
Type
Product
Name
Package
Type
Product
Name
Package
Type
Product
Name
1.2V
1.5V
1.8V
2.1V
2.5V
2.8V
2.85V
3.0V
3.2V
3.3V
3.5V
SOT-89-3A
SOT-89-3A
SOT-89-3A
SOT-89-3A
SOT-89-3A
SOT-89-3A
BL8558-12PSA
BL8558-15PSA
BL8558-18PSA
BL8558-21PSA
BL8558-25PSA
BL8558-28PSA
SOT-89-3B
SOT-89-3B
SOT-89-3B
SOT-89-3B
SOT-89-3B
SOT-89-3B
BL8558-12PSB
BL8558-15PSB
BL8558-18PSB
BL8558-21PSB
BL8558-25PSB
BL8558-28PSB
SOT-89-3A
SOT-89-3A
SOT-89-3A
SOT-89-3A
BL8558-30PSA
BL8558-32PSA
BL8558-33PSA
BL8558-35PSA
SOT-89-3B
SOT-89-3B
SOT-89-3B
SOT-89-3B
BL8558-30PSB
BL8558-32PSB
BL8558-33PSB
BL8558-35PSB
SOT-23-5 A
SOT-23-5 A
SOT-23-5 A
SOT-23-5 A
SOT-23-5 A
SOT-23-5 A
SOT-23-5 A
SOT-23-5 A
SOT-23-5 A
SOT-23-5 A
SOT-23-5 A
BL8558-12PRN
BL8558-15PRN
BL8558-18PRN
BL8558-21PRN
BL8558-25PRN
BL8558-28PRN
BL8558-285PRN
BL8558-30PRN
BL8558-32PRN
BL8558-33PRN
BL8558-35PRN
4.5V
SOT-89-3A
BL8558-45PSA
SOT-89-3B
BL8558-45PSB
SOT-23-5 A
BL8558-45PRN
Output
Voltage
Package
Type
Product
Name
Package
Type
Product
Name
Package
Type
Product
Name
1.2V
1.5V
1.8V
2.1V
2.5V
2.8V
3.0V
3.2V
3.3V
3.5V
SOT-23-3
SOT-23-3
SOT-23-3
SOT-23-3
SOT-23-3
SOT-23-3
SOT-23-3
SOT-23-3
SOT-23-3
SOT-23-3
BL8558-12PRM
BL8558-15PRM
BL8558-18PRM
BL8558-21PRM
BL8558-25PRM
BL8558-28PRM
BL8558-30PRM
BL8558-32PRM
BL8558-33PRM
BL8558-35PRM
TO-92
TO-92
TO-92
TO-92
TO-92
TO-92
TO-92
TO-92
TO-92
TO-92
BL8558-12PT
BL8558-15PT
BL8558-18PT
BL8558-21PT
BL8558-25PT
BL8558-28PT
BL8558-30PT
BL8558-32PT
BL8558-33PT
BL8558-35PT
SOT-23-5 C
SOT-23-5 C
SOT-23-5 C
SOT-23-5 C
SOT-23-5 C
SOT-23-5 C
SOT-23-5 C
SOT-23-5 C
SOT-23-5 C
SOT-23-5 C
BL8558-12PRC
BL8558-15PRC
BL8558-18PRC
BL8558-21PRC
BL8558-25PRC
BL8558-28PRC
BL8558-285PRC
BL8558-30PRC
BL8558-32PRC
BL8558-33PRC
4.5V
SOT-23-3
BL8558-45PRM
TO-92
BL8558-45PT
SOT-23-5 C
BL8558-35PRC
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- 3Total 10 Pages
8/16/2006
BL8558
Product Marking information:
SOT-23-3
SOT23-5 A
SOT-89-3(A)
SOT-89-3(B)
SOT23-5 C
TO-92
1: Output voltage
2.:Lot NO.
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8/16/2006
BL8558
Block Diagram:
:
Absolute Maximum Ratings:
:
Max input voltage --------------------------------------------------------------------------- 10V
Junction Temperature (TJ) ---------------------------------------------------------------- 125°C
Output Current ------------------------------------------------------------------------------- 500mA
Power Dissipation
SOT-23-5 -------------------------------------------------------------------------------- 250mW
SOT-23-3 -------------------------------------------------------------------------------- 200mW
SOT-89-3 -------------------------------------------------------------------------------- 500mW
TO-92 ------------------------------------------------------------------------------------ 350mW
Storage Temperature (Ts) ---------------------------------------------------------------- -45°C~150°C
Recommended Work Conditions:
:
Item
Input Voltage Range
Ambient Temperature
Min
Recommended
-40
Max
8
85
unit
V
°C
Electrical Characteristics:
:
(Test Conditions: Cin=1uF,Cout=3.4uF,TA=25°C, unless otherwise specified. )
BL8558, for arbitrary output voltage
Symbol
Parameter
Vin
Input Voltage
Vout
Output Voltage
Vin=Set Vout+1V
1mA≤Iout≤30mA
Vout
x0.98
Iout (Max.)
Maximun Output
Current
Vin-Vout=1V
500
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Conditions
- 5Total 10 Pages
Min
Typ
Vout1
Max
Units
8
Vout
X1.02
V
V
mA
8/16/2006
BL8558
Vdrop
Dropout
Voltage,Vout≥2.8V
Iout=100mA
Iout=300mA
Iout=500mA
88
270
460
120
350
600
mV
mV
mV
∆Vout
∆Vin ⋅ Vout
Line Regulation
Iout=40mA
2.8V≤Vin≤8V
0.05
0.2
%/V
∆Vout / ∆Iout
Load Regulation
20
40
mV
Iss
75
90
uA
0.1
1.0
uA
∆Vout
∆T ⋅ Vout
Supply Current
Supply Current
(Srandby)
Output Voltage
Temperature
Coefficiency
PSRR
Ripple Rejection
Ilim
Short Current Limit
CE Pull down
Resistance
CE Input Voltage “H”
CE Input Voltage “L”
Output Noise
1
Istandby
Rpd
Vceh
Vcel
en
Vin=Set Vout+1V
1mA≤Iout≤500mA
Vin=Set Vout+1V
Vin=Set Vout+1V
Vce=GND
Iout=30mA
F=100Hz,
Ripple=0.5Vp-p
Vin=Set Vout+1V
Vout=0V
2.0
±100
ppm/°C
65
dB
200
mA
5.0
1.5
0
BW=10Hz~100kHz
47
10.0
MΩ
Vin
0.25
V
V
uVrms
1. Vdrop=Vin1-(Vout2*0.98) Vout2 is the output voltage when Vin=Vout1+1.0V and Iout=300mA or Iout=500mA. Vin1 is
the input voltage at which the output voltage becomes 98% of Vout1 after gradually decreasing the input voltage.
Typical Application Circuit:
:
Application hints:
:
NOTE1: Input capacitor (Cin=1uF) is
recommended in all application circuit.
BL8558
NOTE2: Output capacitor (Cout=3.3uF/4.7uF) is
recommended in all application to
assure the stability of circuit.
Explanation:
:
BL8558 series is a group of positive voltage output, low noise, low power consumption, low
dropout voltage regulator. BL8558 can provide output value in the range of 1.2V~4.5V every 0.1V
step. It also can be customized on command.
BL8558 includes high accuracy voltage reference, error amplifier, current limit circuit and output
driver module. BL8558 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%.
http://www.belling.com.cn
- 6Total 10 Pages
8/16/2006
BL8558
Typical Performance Characteristics:
:
1) Output Voltage vs. Output Current (with output
short protection)
2) Output Voltage vs. Input Voltage
3
2
1.8
2.5
1.6
1.4
Vout(V)
Vout(V)
2
1.5
Vin=3.3V
1
0.5
1.2
Iload=0
Iload=28mA
1
0.8
Vin=3.8V
0.6
Vin=4.8V
0.4
0.2
0
0
200
400
600
800
1000
0
1200
0
2
Iload(mA)
6
8
10
Vin(V)
3) Dropout Voltage vs. Output Current
4) Ripple rejection vs. Frequency
0.7
90
80
0.6
Vout=2.8V
0.5
70
Vout=1.8V
60
PSRR(dB)
Dropout(V)
4
0.4
0.3
50
40
30
0.2
20
0.1
10
0
0
100
200
300
400
500
600
0
0.01
Iload(mA)
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0.1
1
10
Freq(kHz)
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100
BL8558
5) Line transient response
Iout=1mA Cout=1uF
Iout=50mA Cout=1uF
5V
4V
5V
Input Voltage
Input Voltage
4V
Output Voltage
Output Voltage
6) Load transient response
Vin=4.6V Cout=1uF
Vin=4.6V Cout=4.7uF
Output Voltage
Output Voltage
50mA
1mA
50mA
Output Current
Output Current
1mA
Vin=5.8V Cout=1uF
Vin=5.8V Cout=1uF
60mA
250mA
Output Current
Output Current
1mA
1mA
Output Voltage
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Output Voltage
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BL8558
7) Startup response
8) Shutdown response
EN
voltage
EN voltage
Output voltage
Output voltage
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- 9Total 10 Pages
8/16/2006
BL8558
Package Information:
Package
SOT-23-5
Package specification:
Devices per reel
3000
Unit
mm
Taping specification:
Reel specification:
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- 10Total 10 Pages
8/16/2006