BL8051

BL8051
60V Input / 5V Output Linear Regulator
DESCRIPTION
FEATURES


BL8051 is a three-terminal positive regulator with
an output voltage of 5.0V and output current up
to 100mA. The device features a typical output
tolerance of ±5%.
And its input voltage can
stand a voltage as high as 60V.




BL8051 includes high accuracy voltage reference,
error amplifier, TSD circuit and output driver
module.

BL8051 offers thermal shut down functions to
assure the stability of chip and power system.
Maximum output current up to 100mA
Output voltage tolerances of ±5% over the
temperature range
Internal thermal over-temperature
protection
High input voltage (up to 60V)
Low Power Consumption:80uA（Typ.）
Available in plastic TO-92 and plastic TO-220
packages
No external components
APPLICATIONS
BL8051 is available in SOT89-3,TO-92 and TO-220
power packages。



TYPICAL APPLICATION
ELECTRICAL CHARACTERISTICS
BL8051
Application circuit of BL8051
NOTE: Input capacitor (C1=0.33uF) and Output
capacitor (C2=0.1uF) are recommended in all
application circuit. Tantalum capacitor is
recommended.
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Battery Powered equipment
Communication equipment
Audio/Video equipment
BL8051
ORDERING INFORMATION
PIN CONFIGURATION
BL8051 □
1 □
2 □
3 □
4 □
5
Marking Explanation
Code
1
□
2
□
3
□
4
□
5
□
Description
Temperature&Rohs:
C:-40~85C ,Pb Free Rohs Std.
Package type:
C3:SOT-89-3
H:TO-92
N: TO220
Packing type:
TR:Tape&Reel (Standard)
BG:Bag (TO-92)
Output voltage:
e.g. 11=1.1V
15=1.5V
55=5.5V
Voltage accuracy:
2=±2%
Blank(default)=±5%
AEXX
LLBYW
BL8051CC3TR50
SOT89-3
N: Product Code
XX: Output Voltage
LL: LOT NO.
B: FAB Code
YW: Date Code
BL8051CHBG50
TO92
Marking Explanation
N: Product Code
XX: Output Voltage
AEXX
LLBYW
LL: LOT NO.
B: FAB Code
YW: Date Code
BL8051CHBG50
TO220
Marking Explanation
N: Product Code
XX: Output Voltage
AEXX
LLBYW
LL: LOT NO.
B: FAB Code
YW: Date Code
RECOMMENDED WORK CONDITIONS
Parameter
Value
Input Voltage Range
Operating Junction Temperature(Tj)
7V - 60V
-20C –85C
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BL8051
ABSOLUTE MAXIMUM RATING
Parameter
Value
Max Input Voltage
Max Output Current
Operating Junction Temperature(Tj)
Ambient Temperature(Ta)
Power Dissipation
TO-92
TO-220
SOT89-3
Storage Temperature(Ts)
Lead Temperature & Time
60V
100mA
150C
-40C –85C
0.5 W
1W
0.5W
-40C -150C
260C, 10s
Note:
 Exceed these limits may cause damage to the device.
 Exposure to absolute maximum rating conditions may affect device reliability.
ELECTRICAL CHARACTERISTICS
（Test Conditions：Cin=0.33uF,Cout=0.1uF,TA=25C, Unless otherwise specified. ）
Symbol
Parameter
Vin
Input Voltage
Vout
Output Voltage
ΔVout
ΔVout
Iout(Max.
)
Iq
Line Regulation
Load Regulation
Maximum Output
Current
Quiescent Current
ΔV/ΔT
TSD
θJC
Temperature coefficient
Over Temperature
Procetion
Thermal Resistor
Conditions
1mA≤Iout≤40mA
7V≤Vin≤20V
7V≤Vin≤20V
1mA≤Iout≤100mA
Vin-Vout=1.5V
Vin-Vout=1.25V
Vin=6.5V,
25℃≤ Temp ≤85℃
Vin=6.5V, Iout=1mA
TO-92
TO-220
SOT89-3
Min
4.75
100
-
Typ
Max
60
V
5.0
5.25
V
-
200
150
0.08
0.15
mV
mV
mA
mA
±100
ppm
℃
150
10
4.5
20
Note1: All test are conducted under ambient temperature 25°C and within a short period of time 20ms
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Unit
℃/
W
BL8051
BLOCK DIAGRAM
Fig.1 Block Diagram
EXPLANATION and THERMAL CONSIDERATION
BL8051 is a series of low dropout voltage and low power consumption regulator. Its application circuit is
very simple, which only needs two outside capacitors.
We have to take heat dissipation into great consideration when voltage of input is high. Because in such
cases, the power dissipation consumed by BL8051 is very large. LC1029 uses SOT-89-3 package type and its
thermal resistance is about 20°C/W. And the copper area of application board can affect the total thermal
resistance. If copper area is 5cm*5cm (two sides), the resistance is about 30°C/W. So the total thermal
resistance is about 20°C/W + 30°C/W. We can decrease total thermal resistance by increasing copper area
in application board. When there is no good heat dissipation copper are in PCB, the total thermal resistance
will be as high as 120°C/W, then the power dissipation of BL8051 could allow on itself is less than 1W. And
furthermore, BL8051 will work at junction temperature higher than 125°C under such condition and no
lifetime is guaranteed.
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BL8051
TYPICAL PERFORMANCE CHARACTERISTICS
(T=25°C unless specified.)
(Thermal Shutdown)
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BL8051
PACKAGE OUTLINE
Package
TO-92
Device per Box
1000
Unit
mm
Devices per reel
1000
Unit
mm
Package specification：
Package
SOT-89-3
Package specification：
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BL8051
PACKAGE OUTLINE (Continued)
Package
TO-220
Devices per reel
Package specification：
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7
Unit
mm