BL8503-45T1RM [BELLING]
250mA CMOS Low Dropout Voltage Low consumption Regulator;
| 型号： | BL8503-45T1RM |
| 厂家： | 
BELLING |
| 描述： | 250mA CMOS Low Dropout Voltage Low consumption Regulator |
| 文件： | 总13页 (文件大小：533K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
BL8503
250mA CMOS Low Dropout Voltage Low consumption Regulator
Outline：
Features：
Low Power Consumption：3.0uA（Typ.）
Maximum Output Current： 250mA
Small Dropout Voltage：
170mV@100mA (Vout=3.0V)
400mV@250mA (Vout=3.0V)
BL8503 series is a group of positive
voltage output, low power consumption, low
dropout voltage, three terminal regulator. It
can provide 250mA output current when
input / output voltage differential drops to
400mV（Vin =4.0V、Vout=3.0V）。The
very low power consumption of BL8503
（Iq=3.0uA）can greatly improve natural life
of batteries.
Input Voltage Range：1.5V～10V
Output Voltage Range：1.2V~6.0V
（customized on command in 0.1V steps）
BL8503 can provide output value in the
range of 1.2V~6.0V in 0.1V steps. It also can
customized on command.
Highly Accurate：±2%(±1% customized）
Output Current Limit
Applications：
BL8503 includes high accuracy voltage
reference, error amplifier, current limit circuit
and output driver module.
Battery Powered equipment
Power Management of MP3、PDA、DSC、
Mouse、PS2 Games
BL8503 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±
2%.
Reference Voltage Source
Regulation after Switching Power
BL8503 is available in SOT-89-3、SOT-
23-3,TO-92 packages which is lead free，it
also can available in these packages with
lead.
BL8503 Typical Performance
Characteristic：
BL8503 Typical Application Circuit
Output Voltage VS. Output
Current(Vout=1.5V)
1.6
1.5
1.4
1.3
1.2
1.1
1
0
100
200
300
Application hints：
Output Current（mA）
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.
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BL8503
Selection Guide：
Pin Assignment：
Product
Classification
BL8503-□□□PRM
Pin Configuration
BL8503-XX X X X
Packages：
RM：SOT-23-3
SM：SOT-89-3
(Default)
SA：SOT-89-3
SB：SOT-89-3
T：TO-92
BL8503-□□□PSM
BL8503-□□□PSA
Output accucy：
Default，±2％
1： ±1％
（customized）
Temperature range：
P：Standard
（Default、lead free）
C：Standard
（customized）
Output Voltage：
12……1.2V
18……1.8V
21……2.1V
25……2.5V
28……2.8V
30……3.0V
33……3.3V
35……3.5V
40……4.0V
45……4.5V
……
BL8503-□□□PSB
BL8503-□□□PT
50……5.0V
60……6.0V
Pin Description：
Pin number
SOT-89-3
（SM）
PIN Name
TO-92
Function
SOT-89-3 SOT-89-3
SOT-23-3
(SA)
(SB)
1
3
2
1
2
3
1
3
2
2
3
1
1
2
3
Vss
Vin
Vout
Ground
Supply voltage input
Output Voltage
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BL8503
Product Classification：
Product Name Output Voltage Package Type
Package Marking
BL8503-12PRM
BL8503-15PRM
BL8503-21PRM
BL8503-25PRM
BL8503-30PRM
----------
BL8503-50PRM
BL8503-12PSM
BL8503-15PSM
BL8503-21PSM
BL8503-25PSM
BL8503-30PSM
----------
BL8503-50PSM
BL8503-12PSA
BL8503-15PSA
BL8503-21PSA
BL8503-25PSA
BL8503-30PSA
----------
BL8503-50PSA
BL8503-12PSB
BL8503-15PSB
BL8503-21PSB
BL8503-25PSB
BL8503-30PSB
----------
1.2V
1.5V
2.1V
2.5V
3.0V
----------
5.0V
1.2V
1.5V
2.1V
2.5V
3.0V
----------
5.0V
1.2V
1.5V
2.1V
2.5V
3.0V
----------
5.0V
1.2V
1.5V
2.1V
2.5V
3.0V
----------
5.0V
1.2V
1.5V
2.1V
2.5V
3.0V
----------
5.0V
SOT-23-3
SOT-23-3
SOT-23-3
SOT-23-3
SOT-23-3
SOT-23-3
SOT-23-3
SOT-89-3
SOT-89-3
SOT-89-3
SOT-89-3
SOT-89-3
SOT-89-3
SOT-89-3
SOT-89-3
SOT-89-3
SOT-89-3
SOT-89-3
SOT-89-3
SOT-89-3
SOT-89-3
SOT-89-3
SOT-89-3
SOT-89-3
SOT-89-3
SOT-89-3
SOT-89-3
SOT-89-3
TO-92
BL8503-50PSB
BL8503-12PT
BL8503-15PT
BL8503-21PT
BL8503-25PT
BL8503-30PT
----------
TO-92
TO-92
TO-92
TO-92
TO-92
TO-92
BL8503-50PT
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BL8503
Block Diagram：
Absolute Maximum Ratings：
Max input voltage ----------------------------------------------------------------------------------10V
Junction Temperature (TJ) -----------------------------------------------------------------------125C
Ambient Temperature(TA)-------------------------------------------------------------------------40C～85C
Power Dissipation
SOT-23-3------------------------------------------------------------------------------------------0.15W
SOT-23-5------------------------------------------------------------------------------------------0.25W
SOT-89-3------------------------------------------------------------------------------------------0.5W
Storage Temperature(Ts) -------------------------------------------------------------------------45C～150C
Lead Temperature and Time --------------------------------------------------------------------260C,10S
Recommended Work Conditions：
Item
Input Voltage Range
Ambient Temperature
Min
Recommended
Max
8
+125
unit
V
C
-40
Electrical Characteristics：
（Test Conditions：Cin=1uF,Cout=1uF,TA=25C, unless otherwise specified. ）
BL8503-1.5V
Symbol
Vin
Vout
Parameter
Input Voltage
Output Voltage
Maximum Output
Current
Conditions
Min
Typ
1.5
Max
8
1.53
Units
V
V
1.47
250
Iout(Max.)
Dropout
Voltage Voltage Differential
Vout
Vin=2.5V,Vout>1.47
Iout=100mA
mA
mV
Input-Output
270
0.2
400
0.3
Iout=40mA
1.6V≤Vin≤8V
Line Regulation
%/V
mV
Vin Vout
Vin=2.5V
1mA≤Iout≤100mA
Vout
Load Regulation
20
40
Quiescent
Current
Iq
Vin=2.5V
3.0
5.0
uA
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BL8503
Output Voltage
Temperature
Coefficient
Vout
T Vout
Iout=10mA
Conditions
50
ppm/C
BL8503-1.8V
Symbol
Vin
Parameter
Input Voltage
Output Voltage
Maximum Output
Current
Min
Typ
1.8
Max
8
1.836
Units
V
V
Vout
1.764
250
Iout(Max.)
Dropout
Vin=2.8V,Vout>1.764
Iout=100mA
mA
mV
Input-Output
Voltage Voltage Differential
270
0.2
400
0.3
Vout
Vin Vout
Iout=40mA
2V≤Vin≤8V
Line Regulation
%/V
Vin=2.8V
1mA≤Iout≤100mA
Vout
Load Regulation
20
40
mV
uA
Quiescent
Current
Iq
Vin=2.8V
3.0
5.0
Output Voltage
Temperature
Coefficient
Vout
T Vout
Iout=10mA
50
ppm/C
BL8503-2.8V
Symbol
Vin
Parameter
Input Voltage
Output Voltage
Maximum
Output Current
Input-Output
Voltage
Conditions
Min
Typ
2.8
Max
8
2.856
Units
V
V
Vout
2.744
250
Iout(Max.)
Vin=4V,Vout>2.744V
Iout=100mA
mA
170
320
300
500
Dropout
Voltage
mV
Iout=200mA
Differential
Vout
Vin Vout
Iout=40mA
3V≤Vin≤8V
Line Regulation
0.2
0.3
%/V
Vin=3.8V
1mA≤Iout≤100mA
Vout
Load Regulation
20
40
mV
uA
Quiescent
Current
Iq
Vin=3.8V
3.0
5.0
Output Voltage
Temperature
Coefficient
Vout
T Vout
Iout=10mA
50
ppm/C
BL8503-3.0V
Symbol
Vin
Parameter
Input Voltage
Output Voltage
Maximum
Output Current
Input-Output
Voltage
Conditions
Min
Typ
3.0
Max
8
3.06
Units
V
V
Vout
2.94
250
Iout(Max.)
Vin=4V,Vout>2.94V
Iout=100mA
mA
170
320
300
500
Dropout
Voltage
mV
Iout=200mA
Differential
Vout
Vin Vout
Iout=40mA
3.2V≤Vin≤8V
Line Regulation
0.2
0.3
%/V
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BL8503
Vin=4.0V
1mA≤Iout≤100mA
Vout
Load Regulation
20
40
mV
uA
Quiescent
Current
Iq
Vin=4V
3.0
5.0
Output Voltage
Temperature
Coefficient
Vout
T Vout
Iout=10mA
50
ppm/C
BL8503-5.0V
Symbol
Vin
Parameter
Input Voltage
Output Voltage
Maximum
Output Current
Input-Output
Voltage
Conditions
Min
Typ
5.0
Max
8
5.1
Units
V
V
Vout
4.9
Iout(Max.)
Vin=6V,Vout>4.9V
Iout=100mA
250
mA
170
320
300
500
Dropout
Voltage
mV
Iout=200mA
Differential
Vout
Vin Vout
Iout=40mA
5.2V≤Vin≤8V
Line Regulation
0.2
0.3
%/V
Vin=6.0V
1mA≤Iout≤100mA
Load Regulation
20
40
mV
uA
Vout
Quiescent
Current
Iq
Vin=6V
3.0
5.0
Output Voltage
Temperature
Coefficient
Vout
T Vout
Iout=10mA
50
ppm/C
Typical Application Circuit：
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：
BL8503 is a series of low dropout voltage and low power consumption three pins 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 250mA.
BL8503 uses trimming technique to assure the accuracy of output value within±2%, at the
same time, temperature compensated is elaborately considered in this chip, which makes BL8503’s
temperature coefficient within 50ppm/℃。
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BL8503
Typical Performance Characteristics：
1.Load regulation
Output Voltage VS Output Current(Vout=1.5V)
Output Voltage VS Output Current(Vout=3.0V)
3.05
1.6
1.5
1.4
1.3
1.2
1.1
1
3
2.95
2.9
2.85
2.8
0
50
100
150
200
250
300
0
50
100
150
200
250
300
Output Current（mA）
Output Current （mA）
2.Line Regulation
Line regulation（Vout=1.5V)
Line regulation (Vout=3.0V)
1.51
1.505
1.5
3.07
3.05
3.03
3.01
2.99
2.97
2.95
2.93
1.495
1.49
Iout=40mA
Iout=6mA
Iout=40mA
Iout=3mA
1.485
1.48
1
2
3
4
5
6
7
8
3
4
5
6
7
8
9
10
Input Voltage（V）
Input Voltage（V）
3.Dropout Voltage
Dropout Voltage (Vout=3.0V)
Dropout Voltage (Vout=1.5V)
3.05
3.04
3.03
3.02
3.01
3
1.6
1.5
1.4
1.3
1.2
1.1
1
2.99
2.98
2.97
2.96
Iout=100mA
Iout=200mA
Iout=100mA
Iout=200mA
3
3.2
3.4
3.6
3.8
4
1.5
1.8
2.1
2.4
2.7
3
Input Voltage（V）
Input Voltage（V）
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BL8503
Input Voltage transient response
（Vout=1.5V,Iout=1mA）
4．Input Voltage transient response
（Vout=1.5V,Iout=10mA）
Cin=Cout=1uF
Cin=Cout=1uF
Vin=3.5V
Vin=3.5V
Vin=2.5V
Vin=2.5V
Input Voltage transient response
Input Voltage transient response
（Vout=3.0V,Iout=10mA）
（Vout=3.0V,Iout=1mA）
Cin=Cout=1uF
Cin=Cout=1uF
Vin=5V
Vin=5V
Vin=4V
Vin=4V
5．Load transient response（Vout=1.5V）
Load transient response（Vout=3.0V）
Iout=40mA
Iout=40mA
Iout=1mA
Iout=1mA
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BL8503
Package Outline：
Package
SOT-89-3
Devices per
reel
1000
Unit
mm
Package Dimension:
Taping Specification:（M1：Standard Type，M2：Customized）
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BL8503
Taping Reel Dimension：
SOT-23-3:
Package
SOT-23-3
Devices per
reel
3000
Unit
mm
Package dimension：
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BL8503
Taping Specification：
Taping reel dimension：
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BL8503
SOT-23-5:
Package
SOT-23-5
Devices per
reel
3000
Unit
mm
Package specification：
Taping dimension：（M1：Standard Type ，M2：Customized）
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BL8503
Taping reel dimension：
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