ASPL78L05
LINEAR INTEGRATED CIRCUIT
概述 General Description
特点 Features
The 78L05 of three terminal positive
regulators is designed to output 5V/100mA
for a wide range of applications, such as
on-card regulation for elimination of
noise
and
distribution
problems
associated with single-point regulation.
In addition, the chip can be used with
power-pass elements to make high-current
voltage regulators. The internal limiting
and thermal-shutdown features of the
regulatoressentially make 78L05 immune to
overload. The 78L05 is available in the
plastic TO-92,SOT-223,SOP-8,and SOT-89
packages.
78L05 是一种三端调整器,输出+5V/100mA
电流,应用广泛。例如可用作板卡调整器降低
噪声,和单点调整器结合起来解决分布式电源
问题。而且,这款芯片和功率调整元件组合可
以输出大电流。内置的限流和热关断保护
78L05 免于过载烧毁。78L05 提供三种塑料封
装:TO-92, SOT-223,SOP-8和 SOT-89。
全温度范围内输出电压精度:±3%
Output voltage tolerance of over the
temperature range ±3%
输出电流 100mA
Output current of 100mA
内置过热保护
Internal thermal overload protection
内置过流保护
Internal over-current protection
无需外部元件
No external component
应用 Applications
高效率线性调整器
High Efficiency Linear Regulator
开关电源的后级调整器
Post Regulation for Switching Supply
为微处理器提供电源
Microprocessor Power Supply
主板的 I/O 端口电源
Mother Board I/O Power Supply
Figure 1. Package Type of 78L05
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ASPL78L05
LINEAR INTEGRATED CIRCUIT
管脚说明 Pin Configuration
Figure 2. Pin Configuration of 78L05 (Top view)
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ASPL78L05
LINEAR INTEGRATED CIRCUIT
功能框图 Functional Block Diagram
Figure 3. Functional Block Diagram of 78L05
绝对最大额定值 Absolute Maximum Rating (Note 1)
项目
Parameter
符号
Symbol
数值
Value
单位
Unit
输入电压
Input Voltage
VIN
30
V
结温
Junction Temperature
TJ
150
℃
TLEAD
260
℃
焊接温度
Lead Temperature
(Soldering, 10sec)
PD
功耗
Power Dissipation(TA=25℃)
存储温度
Storage Temperature Range
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TSTG
3/15
TO-92
0.65
SOT-223
0.7
SOT-89
0.65
SOP-8
0.83
-50 to 150
W
℃
Ascend Semicondutor Co.,Ltd
ASPL78L05
LINEAR INTEGRATED CIRCUIT
Note 1: Stresses greater than those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. These are stress ratings only, and functional operation
of the device at these or any other conditions beyond those indicated under “Recommended
Operating Conditions” is not implied. Exposure to “Absolute Maximum Ratings” for
extended periods may affect device reliability.
备注 1:超过“绝对最大额定值”的应力可能会造成器件永久损坏。这些仅是应力额定值,器件
工作在上述条件以及超出“建议工作条件”的情况是不可取的。长期处于“绝对最大额定值”可
能影响器件的可靠性。
推荐工作条件 Recommended Operating Conditions
项目
Parameter
符号
Symbol
最小值
Min
最大值
Max
单位
Unit
输入电压
Input Voltage
VIN
7
25
V
结温
Junction Temperature
TJ
-40
125
℃
电特性表 Electrical Characteristics
除非特指,典型字体表示 TJ=25℃,IOUT=40mA,VIN=10V, CIN=0.33μF, COUT=0.1μF,黑色字体的
温度范围-40℃到 125℃。
Limits in standard typeface are for TJ=25℃, Bold typeface applies over -40℃ to 125℃,
IOUT=40mA, VIN=10V, CIN=0.33μF, COUT=0.1μF , unless otherwise specified.
项目 Parameter
输出电压
Output Voltage
符号
Symbol
测试条件
Conditions
VOUT
7.0V≤VIN≤20V
数值
Value
最小
Min
典型
Typ
最大
Max
4.85
5
5.15
4.85
单位
Unit
V
5.15
1.0mA≤IOUT≤40mA
线性调整率
Line Regulation
VRLINE
负载调整率
Load Regulation
VRLOAD
压差
Dropout Voltage
短路电流
Short Current
FEB 2019 Version1.0
30
70
mV
1.0mA≤IOUT≤100mA
20
40
mV
1.0mA≤IOUT≤40mA
10
30
VDROP
1.7
2
Ios
100
7.0V≤VIN≤20V
IOUT=40mA
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V
mA
Ascend Semicondutor Co.,Ltd
ASPL78L05
LINEAR INTEGRATED CIRCUIT
静态电流
Quiescent Current
IQ
IOUT=0
2.3
4
mA
静态电流的变化
Quiescent Current Change
△IQ
8.0V≦VIN≦20V
0.1
0.3
mA
1.0mA≦IOUT≦40mA
0.2
输出噪声电压
Output Noise Voltage
NO
10Hz ≤f≤100KHz
40
μV
电源抑制比
Ripple Rejection
PSRR
f=120Hz,
75
dB
峰值输出电流
Peak Output Current
IPK
160
mA
输出电压平均温度系数
Average Temperature
Coefficient of Output
Voltage
△VOUT/△T
-0.35
mV/℃
最小输入电压
Minimum Value of Input
Voltage Required to
Maintain Line Regulation
VIN(min)
热阻
Thermal Resistance
θJC
47
8.0V≦VIN≦20V
IOUT=5.0mA
6.7
TO-92
81
SOT-89
84
SOT-223
71
7
V
℃/W
典型性能 Typical Performance Characteristics
Figure 4. Output Voltage vs. Junction Temperature
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Figure 5. Output Voltage vs. Input Voltage
Ascend Semicondutor Co.,Ltd
ASPL78L05
LINEAR INTEGRATED CIRCUIT
Figure 6. Output Voltage vs. Load Current
Figure 8. Quiescent Current vs. Junction Temperature
Figure 7. Thermal Shutdown
Figure 9. Quiescent Current vs. Input voltage
Figure 10. Dropout Voltage vs. Junction Temperature
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Figure 11. Ripple Rejection
Ascend Semicondutor Co.,Ltd
ASPL78L05
LINEAR INTEGRATED CIRCUIT
典型应用 Typical Application
Figure 14. Fixed Output Regulator
VOUT = 5V + (5V/R1 + IQ)R2
5V/R1 > 3IQ, load regulation(Lr) ≈ [(R1 + R2)/R1](Lr of 78L05)
Figure 15. Adjustable Output Regulator
IOUT = (VOUT/R1)+IQ > IQ over line and load change
Figure 16. Current Regulator
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ASPL78L05
LINEAR INTEGRATED CIRCUIT
典型应用 Typical Application(Continued)
Optional: Improves ripple rejection and transient response.
Load Regulation: 0.6%
0 ≤IL ≤250mA pulsed with tON = 50ms
Figure 17. 5V 500mA Regulator with Short Circuit Protection
*Solid tantalum
VOUT = VG + 5V R1 = -VIN/IQ
VOUT = 5V(R2/R4) for (R2+R3) = (R4+R5)
A 0.5V output will correspond to (R2/R4) = 0.1(R3/R4)=0.9
Figure 18. Variable Output Regulator 0.5V to 18V
Note2: Senichip are responsible for consistency of product. The devices should be working
in recommended condition. Before new design product being bulk production, pilot
production should be done. Senichip assumes no liability for applications assistance
or customer design product.
备注 2:西安晟芯半导体公司负责提供器件的一致性,客户应在推荐工作条件下使用器件。客户
设计新产品量产前应进行小批量试产,西安晟芯半导体公司不对客户设计产品及其应用支持负
责。
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ASPL78L05
LINEAR INTEGRATED CIRCUIT
Ordering and Marking Information
Device
Marking
Package
Packaging
Quantity
AS3//6/
SOP8
Tape&Reel
3000/Reel
AS3//'7/
SO7
Tape&Reel
3000/Reel
AS3//', /
SO7
Tape&Reel
1000/Reel
AS3///3/
72
%$*
MARKING
PACKAGE
SOP-8
SO7
Lot Number
56J.3
SO7
Date Code
72
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ASPL78L05
LINEAR INTEGRATED CIRCUIT
外观尺寸 Mechanical Dimensions
TO-92 (Bulk Packing)
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Unit: mm (inch)
Ascend Semicondutor Co.,Ltd
ASPL78L05
LINEAR INTEGRATED CIRCUIT
外观尺寸 Mechanical Dimensions (Continued)
TO-92 (Ammo Packing)
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Unit: mm (inch)
Ascend Semicondutor Co.,Ltd
ASPL78L05
LINEAR INTEGRATED CIRCUIT
外观尺寸 Mechanical Dimensions (Continued)
SOT-223
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Unit: mm (inch)
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ASPL78L05
LINEAR INTEGRATED CIRCUIT
外观尺寸 Mechanical Dimensions (Continued)
SOT-89
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Unit: mm (inch)
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ASPL78L05
LINEAR INTEGRATED CIRCUIT
SOP-8 PACKAGE IN FORMATION
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ASPL78LXX
LINEAR INTEGRATED CIRCUIT
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