BL8591
100mA High PSRR, Fast Response Linear Regulator
DESCRIPTION
BL8591 series is a group of positive voltage
output, low power consumption, low dropout
voltage regulator.
BL8591 can provide output value in the range
of 1.2V~4.5V every 0.1V step. It also can be
customized on command.
BL8591 includes high accuracy voltage
reference, error amplifier, current limit circuit
and output driver module with discharge
capability.
BL8591 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%.
BL8591 is available in SOT23-3, SOT23-5,
SOT89-3, SOT89-5 and TO92 packages
which are lead free. It also can available in
these packages with lead.
FEATURES
•
•
•
•
•
•
•
•
•
•
•
Low Power Consumption: 75uA（Typ.）
Low Output Noise (47uVRMS)
Standby Mode: 0.1uA
Low Dropout Voltage: 0.1V@100mA
(Typ.)
High Ripple Rejection: 66dB@100Hz
(Typ.)
Low Temperature Coefficient:
±
100ppm/°C
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)
Highly Accurate:
±2%
(±1% customized)
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
ELECTRICAL CHARACTERISTICS
LC1458CB5TR28 Output
BL8591
2.9
2.8
Vout
（
v
）
BL8591
BL8591
2.7
2.6
Vout(V)
2.5
2.4
2.3
2.2
2.1
2
0
100
200
300
Iload(mA)
400
500
600
NOTE: Input capacitor (Cin=1uF) and Output
capacitor (Cout=1uF/2.2uF) are
recommended in all application circuit.
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1
BL8591
ORDERING INFORMATION
BL8591
□□□□□
1 2 3 4 5
PIN CONFIGURATION
Product Classification
BL8591CB3TR□□□
Marking
J:Product Code
JXZZ
X: Output Voltage
ZZ:Data Code
Product Classification
Marking
J:Product Code
JXZZ
X: Output Voltage
ZZ:Data Code
Product Classification
Marking
JA:Product Code
XX: Output Voltage
JAXX
YY:Lot No.
YYBZZ
B:Fab code
ZZ:Data Code
Product Classification
JA:Product Code
XX: Output Voltage
JAXX
YY:Lot No.
YYBZZ
B:Fab code
ZZ:Data Code
Product Classification
JA:Product Code
XX: Output Voltage
JAXX
YY:Lot No.
YYBZZ
B:Fab Code
ZZ:Data Code
BL8591CC3TR□□□
BL8591CB5TR□□□
Code
1
□
Description
Temperature&Rohs:
C:-40~85°C ,Pb Free Rohs Std.
Package type:
B3:SOT-23-3
B5:SOT-23-5
C3:SOT-89-3
C5:SOT89-5
H:TO-92
Packing type:
TR:Tape&Reel (Standard)
BG:Bag(TO-92)
Output voltage:
e.g. 12=1.2V
18=1.8V
45=4.5V
Voltage accuracy:
Blank(default)=±2%
2
□
3
□
4
□
5
□
MARKING DESCRIPTON
J
:
Product Code(SOT23-3&SOT23-5)
X: Output Voltage
(SOT23-3&SOT23-5)
Vout
Code
Vout
Code
Vout
1.2V
2
2.5V
3.8V
5
1.3V
3
2.6V
3.9V
6
1.4V
1.5V
1.6V
1.7V
1.8V
1.9V
2.0V
2.1V
2.2V
2.3V
2.4V
4
5
6
7
8
9
2.7V
2.8V
2.9V
3.0V
3.1V
3.2V
3.3V
3.4V
3.5V
3.6V
BL8591CC5TR□□□
Code
8
9
7
4.0V
4.1V
4.2V
4.3V
4.4V
4.5V
0
1
2
3
4
5
8
9
0
1
2
3
4
5
6
BL8591CHBG□□□
0
1
2
3
Vss
Vin
Vout
CE
NC
Ground Pin
Supply Voltage Input
Output Voltage
Chip Enable
No Connection
3.7V
7
4
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.
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2
BL8591
ABSOLUTE MAXIMUM RATING
Parameter
Max Input Voltage
Operating Junction Temperature(Tj)
Output Current
Ambient Temperature(Ta)
Power
SOT23-3
Dissipation SOT23-5
SOT89-3
SOT89-5
TO-92
Storage Temperature(Ts)
Lead Temperature & Time
Value
15V
125°C
500mA
-40°C –85°C
250mW
250mW
500mW
500mW for normal application
800mW
with 10mmx20mm heat dissipation coil
500mW
-40°C -150°C
260°C,10S
Note: Exceed these limits to damage to the device. Exposure to absolute maximum rating conditions
may affect device reliability.
RECOMMENDED WORK CONDITIONS
Item
Input Voltage Range
Ambient Temperature
Min
-40
Recommended
Max.
14
85
Unit
V
°C
ELECTRICAL CHARACTERISTICS
（Test
Conditions: Cin=1uF,Cout=3.3uF,TA=25°C, unless otherwise specified.
）
BL8591, For Arbitrary Output Voltage
Symbol
Parameter
Conditions
Min
Typ
Vin
Input Voltage
Vout
Vout
Vout>1.5V
x0.98
Output
Vin=Set Vout+1V
Vout
Voltage
1mA≤Iout≤30mA
Vout
Vout
Vout<=1.5V
-0.03
Maximun Output
Iout (Max.)
Vin-Vout=1V
100
Current
Dropout
Vdrop
1
Iout=100mA
88
Voltage,Vout≥2.8V
Max
14
Vout
X1.02
Vout
+0.03
Units
V
V
mA
120
0.2
40
90
mV
%/V
mV
uA
∆
Vout
∆
Vin
⋅
Vout
Line Regulation
Load Regulation
Supply Current
∆
Vout
/
∆
Iout
Iss
Iout=40mA
2.8V≤Vin≤8V
Vin=Set Vout+1V
1mA≤Iout≤500mA
Vin=Set Vout+1V
0.05
20
75
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3
BL8591
Istandby
Supply Current
(Srandby)
Output Voltage
Temperature
Coefficiency
Ripple Rejection
Short Current Limit
CE Pull down
Resistance
CE Input Voltage “H”
CE Input Voltage “L”
Vin=Set Vout+1V
Vce=GND
Iout=30mA
F=100Hz,
Ripple=0.5Vp-p
Vin=Set Vout+1V
Vout=0V
2.0
1.5
0
0.1
±100
1.0
uA
ppm/°C
∆
Vout
∆
T
⋅
Vout
PSRR
Ilim
Rpd
Vceh
Vcel
65
200
5.0
10.0
Vin
0.25
dB
mA
MΩ
V
V
NOTE1:
Vdrop=Vin1-(Vout2*0.98) Vout2 is the output voltage when Vin=Vout1+1.0V and Iout=100mA.
Vin1 is the input voltage at which the output voltage becomes 98% of Vout1 after gradually decreasing the input voltage.
BLOCK DIAGRAM
Explanation
BL8591 series is a group of positive voltage output, low noise, low power consumption, low
dropout voltage regulator.
BL8591 can provide output value in the range of 1.2V~4.5V every 0.1V step. It also can be
customized on command.
BL8591 includes high accuracy voltage reference, error amplifier, current limit circuit and output
driver module.
BL8591 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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