BL8551 datasheet v1.5-E

BL8551
150mA CMOS High Input Voltage Low Consumption Regulator
Features:
:
•
•
•
•
•
•
Low Power Consumption:9uA(Typ.)
High Output Current: 150mA
Small Input-Output Differential:
[email protected] (Vout=3.3V)
High input voltage (up to 24V)
Highly Accuracy:±5%
Output Current Limit
Applications:
:
•
•
•
Battery Powered equipment
Communication equipment
Audio/Video equipment
Block Diagram:
:
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General Description:
:
BL8551 series is a group of positive
voltage output, high voltage input ,low power
consumption, low dropout voltage regulator.
It can affords 150mA output current when
input- output voltage differential drops to
900mV。
BL8551 can provide output value in the
range of 2.5V~12V every 0.1V step. It also
can customized on command.
BL8551 includes high accuracy voltage
reference, error amplifier, current limit circuit
and output driver module.
BL8551 has well load transient response
and good temperature characteristic, which
can assure the stability of chip and power
system. And it uses trimming technique to
guarantee output voltage accuracy within±
5%.
BL8551 is available in SOT-89-5 with EN
Pin and SOT-23-5 、TO-92、SOT-89 –3、
SOT-23-3 without EN Pin.packages which is
lead free.
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BL8551
Selection Guide:
:
BL8551-XX X X
Pin Assignment:
:
Product
Classification
BL8551-□□PRM
Pin Configuration
Package Type:
RM:SOT-23-3
RN:SOT-23-5
SM:SOT-89-3
SN:SOT-89-5
T: TO-92
Temperature range:
P:Standard
(defualt、lead free)
C:Stamdard
(customized)
Output Voltage:
25……2.5V
30……3.0V
33……3.3V
44……4.4V
……
12……12V
BL8551-□□PRN
BL8551-□□PSM
BL8551-□□PSN
BL8551-□□PT
:
Pin Description:
PIN NUMBER
SOT-23
SOT-25
SOT-89-3
SOT-89-5
TO-92
1
3
2
-
-
1
2
3
-
-
1
2
3
-
-
2
5
1
3
4
1
2
3
-
-
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PIN NAME
FUNCTION
Vss
Vin
Vout
CE
NC
Ground
Supply voltage input
Output Voltage
Enable pin
No connection
9/17/2009
BL8551
Product Classification:
:
Product Name
Output Voltage
Package Type
BL8551-25PRM
BL8551-30PRM
BL8551-33PRM
BL8551-50PRM
---------BL8551-12PRM
BL8551-25PRN
BL8551-30PRN
BL8551-33PRN
BL8551-50PRN
---------BL8551-12PRN
BL8551-25PSM
BL8551-30PSM
BL8551-33PSM
BL8551-50PSM
---------BL8551-12PSM
BL8551-25PSN
BL8551-30PSN
BL8551-33PSN
BL8551-50PSN
---------BL8551-12PSN
BL8551-25PT
BL8551-30PT
BL8551-33PT
BL8551-50PT
---------BL8551-12PT
2.5V
3.0V
3.3V
5.0V
---------12V
2.5V
3.0V
3.3V
5.0V
---------12V
2.5V
3.0V
3.3V
5.0V
---------12V
2.5V
3.0V
3.3V
5.0V
---------12V
2.5V
3.0V
3.3V
5.0V
---------12V
SOT-23
SOT-23
SOT-23
SOT-23
---------SOT-23
SOT-25
SOT-25
SOT-25
SOT-25
---------SOT-25
SOT-89-3
SOT-89-3
SOT-89-3
SOT-89-3
---------SOT-89-3
SOT-89-5
SOT-89-5
SOT-89-5
SOT-89-5
---------SOT-89-5
TO-92
TO-92
TO-92
TO-92
---------TO-92
Package Marking
Absolute Maximum Ratings:
:
Max input voltage ---------------------------------------------------------------------------------- 26V
Junction Temperature (TJ) ----------------------------------------------------------------------- 125°C
Ambient Temperature(TA) ------------------------------------------------------------------------ -40°C~85°C
Power Dissipation
SOT-23-3 ------------------------------------------------------------------------------------------ 0.25W
SOT-23-5 ------------------------------------------------------------------------------------------ 0.25W
SOT-89-3 ------------------------------------------------------------------------------------------ 0.5W
SOT-89-5 ------------------------------------------------------------------------------------------ 0.5W
TO-92 ---------------------------------------------------------------------------------------------- 0.2W
Storage Temperature(Ts) ------------------------------------------------------------------------ -45°C~150°C
Lead Temperature and Time -------------------------------------------------------------------- 260°C,10S
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BL8551
Recommended Work Conditions:
:
Item
Input Voltage Range
Ambient Temperature
Min
Recommended
-40
Max
24
+125
unit
V
°C
Electrical Characteristics:
:
(Test Conditions:Cin=1uF,Cout=1uF,TA=25°C, Unless otherwise specified. )
Symbol
Vin
Vout
Dropout
Voltage
Parameter
Input Voltage
Output Voltage
Maximun Output
Current
Input-Output
Voltage Differentia
∆Vout
∆Vin ⋅ Vout
Line Regulation
∆Vout
Load Regulation
Iout(Max.)
Quiescent
Current
Current Limit
CE ”H” Input
Voltage
CE ”L” Input
Voltage
Iq
Ilim
VCEH
VCEL
Conditions
Min
Vin=Vout+2.0V
×0.95
Vin-Vout=1.5V
150
Typ
Max
24
×1.05
Units
V
V
mA
Iout=20mA
Iout=150mA
270
900
500
1200
mV
Iout=20mA
Vout+1V ≤Vin ≤24V
0.2
0.3
%/V
30
60
mV
9
15
uA
Vin-Vout=2.0V
1mA ≤Iout ≤40mA
Vin-Vout=2.0V
Vin=VCE
Vin-Vout=2.0V
250
mA
1.5
Vin
V
0.0
0.3
V
Typical Application Circuit:
:
Vce
CE
Vin
Cin
Vin
BL8551
Vout
GND
Vout
Cout
Iout
Rload
Application hints:
:
NOTE1:Input capacitor (Cin=1uF) is recommended in all application circuit. Tantalum capacitor is
recommended.
NOTE2:Output capacitor (Cout=1uF) is recommended in all application to assure the stability of
circuit. Tantalum capacitor is recommended.
:
Explanation:
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BL8551
BL8551 is a series of low dropout voltage and low power consumption regulator. Its
application circuit is very simple, which only needs two outside capacitors. It is composed of these
modules: high accuracy voltage reference, current limit circuit, error amplifier, output driver and
power transistor.
Current Limit module can keep chip and power system away from danger when load current is
more than 150mA.
BL8551 uses trimming technique to assure the accuracy of output value within±5%.
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BL8551
Typical Performance Characteristics:
:
Iss vs Vin
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
10
8
Iss (uA)
Vout (V)
Vout vs Iout
6
4
2
0
0
50
100
150
200
250
0
5
10
Iout (mA)
15
20
25
Vin (V)
Dropout vs Iout
Dropout (V)
2.5
2
1.5
1
0.5
0
0
20
40
60
80
100 120 140 160
Iout (mA)
Load Transient Response
Cout=0.1uF
Input Transient Response
Vin=5.3V
Iout=20mA Cout=0.1uF
10V
20mA
Input Voltage
Output Current
1mA
5V
Output Voltage
Output Voltage
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9/17/2009
BL8551
Package Outline:
:
SOT-23-3:
Package
SOT-23-3
Devices per
reel
3000
Unit
mm
Package dimension:
Taping Specification:
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BL8551
Taping reel dimension:
SOT-23-5:
Package
SOT-23-5
Devices per
reel
3000
Unit
mm
Package dimension:
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BL8551
Taping Specification:
Taping reel dimension:
SOT-89-3:
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9/17/2009
BL8551
Package
SOT-89-3
Devices per
reel
1000
Unit
mm
Package dimension:
Taping Specification:
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9/17/2009
BL8551
Taping reel dimension:
SOT-89-5:
Package
SOT-89-5
Devices per
reel
1000
Unit
mm
Package dimension:
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BL8551
Taping Specification:
Taping reel dimension:
TO-92
Package
TO-92
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Devices per
Bag
1000
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Unit
mm
9/17/2009
BL8551
Package dimension:
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