BL9103
250mA
，
Low Power Consumption LDO BL9103 Series
General Description
Features
Ultra low quienscent current: 3.0uA(typ)
High input voltage (up to 18v)
Low dropout voltage :80mV@Iout=40mA
（Vout=3.3v）
Output voltage accuracy： ±
2％
Maximum output current：250mA
（within
max.power dissipation,Vout=3.3V）
Low temperature coefficient
Package：SOT23-3、TO-92、SOT89-3
The BL9103 series are a group of positive voltage
output, three–pin regulator, that provide a high
current even when the input/output Voltage
differerntial is small. Low power consumption and
high accuracy is achieved through CMOS
technology. They allow input voltages as high as
18V.
Typical Application
Selection Guide
BL9103-XX
X
X
X
Packages：
RM：SOT-23-3
SM：SOT-89-3
T：TO-92
Cameras, video recorders
Voltage regulator for microprocessor
Voltage regulator for LAN cards
Wireless communication equipment
Audio/Video equipment
Typical Application Circuit
Output accucy：
Default，±2％
1：
±1％
（customized）
Temperature range：
P：Standard
（Default、lead
free）
C：Standard
（customized）
Output Voltage：
33……3.3V
40……4.0V
45
……4.5V
50……5.0V
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BL9103
Pin Configuration
SOT23-3
SOT89-3
TO-92
Pin Description
Pin Number
SOT89-3/TO-92
SOT23-3
1
1
2
3
3
2
Pin Name
V
SS
V
IN
V
OUT
Functions
Ground
Input
Output
Absolute Maximum Ratings
Parameter
Input Voltage
Output Voltage
Output Current
Operating Temperature Range
Storage Temperature Range
SOT89-3
Power Dissipation TO-92
SOT23-3
Symbol
V
IN
V
OUT
Iout
T
OPR
T
STG
P
D
Ratings
18
Vss-0.3½V
IN
+0.3
500
-40½＋85
－40½＋125
500
500
300
Units
V
V
mA
℃
℃
mW
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BL9103
Block Diagram
Electrical Characteristics
BL9103-33
(V
IN
= V
OUT
+1.0V，C
IN=
C
L
=10uF，Ta=25
O
C, unless otherwise noted)
Parameter
Output Voltage
Input Voltage
Maximum Output Voltage
Load Regulation
Dropout Voltage
(Note 3)
Supply Current
Line Regulations
Symbol
V
OUT
(E)
(Note 2)
V
IN
I
OUT
_max
∆V
OUT
Conditions
I
OUT
=40mA,
V
IN
=Vout+1V
Min.
X 0.98
Typ.
V
OUT
(T)
(Note 1)
Max.
X 1.02
18
Units
V
V
mA
V
IN
=Vout+1V
V
IN
=Vout+1V,
1mA≤I
OUT
≤60mA
I
OUT
=40mA
V
IN
=Vout+1V
I
OUT
=40mA
Vout+1V ≤V
IN
≤18V
V
IN
=Vout+1V, I
OUT
=40mA
-40℃<Ta<85℃
250
15
40
mV
V
dif
I
SS
∆V
OUT
∆V
IN
×V
OUT
Temperature
Coefficient
80
3
0.1
4
0.2
mV
μ A
%/V
△VOUT/△Ta
±
0.7
mV/℃
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BL9103
BL9103-40
(V
IN
= V
OUT
+1.0V，C
IN=
C
L
=10uF，Ta=25
O
C, unless otherwise noted)
Parameter
Output Voltage
Input Voltage
Maximum Output Voltage
Load Regulation
Dropout Voltage
(Note 3)
Supply Current
Line Regulations
Symbol
V
OUT
(E)
(Note 2)
V
IN
I
OUT
_max
∆V
OUT
Conditions
I
OUT
=40mA,
V
IN
=Vout+1V
Min.
X 0.98
Typ.
V
OUT
(T)
(Note 1)
Max.
X 1.02
18
Units
V
V
mA
V
IN
=Vout+1V
V
IN
=Vout+1V,
1mA≤I
OUT
≤60mA
I
OUT
=40mA
V
IN
=Vout+1V
I
OUT
=40mA
Vout+1V ≤V
IN
≤18V
V
IN
=Vout+1V, I
OUT
=40mA
-40℃<Ta<85℃
250
15
40
mV
V
dif
I
SS
∆V
OUT
∆V
IN
×V
OUT
Temperature
Coefficient
70
3
0.1
4
0.2
mV
μ A
%/V
△VOUT/△Ta
±
0.7
mV/℃
Note
：
1. V
OUT
(T)
：Specified
Output Voltage
2.V
OUT
(E)
：
Effective Output Voltage ( ie. The output voltage when “V
OUT
(T)+1.0V”is provided at the Vin pin while
maintaining a certain Iout value.)
3.V
DIF
：V
IN1
–V
OUT
(E)’
V
IN1
：The
input voltage when V
OUT
(E)’ appears as input voltage is gradually decreased.
V
OUT
(E)’=A voltage equal to 98% of the output voltage whenever an amply stabilized Iout and {V
OUT
(T)+1.0V} is input.
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