78D05A
Rev.D May.-2019 DATA SHEET
http://www.fsbrec.com 1 / 7
TO-252 塑封封装电压调整器。Voltage Regulator in a TO-252 Plastic Package.
三端稳压调整器，输出电流高达 1.0A,内设过热保护和短路限制。无卤产品。
3-Terminal regulators ,output current up to 1.0A, internal thermal overload protection and short-circuit
limiting. Halogen-free Product.
电压调整器。
Voltage Regulator.
内部等效电路/应用电路 / Equivalent Circuit or Application Circuit
PIN1：IN PIN 2、4：GND PIN 3：OUT
印章代码 / Marking
见印章说明。See Marking Instructions.
描述 / Descriptions
特征 / Features
用途 / Applications
引脚排列 / Pinning
1
3
2
4
78D05A
Rev.D May.-2019 DATA SHEET
http://www.fsbrec.com 2 / 7
参数
Parameter
符号
Symbol
数值
Rating
单位
Unit
Input voltage
V
I
7~35 V
Power Dissipation P
D
Internally Limited W
Thernal Resistance Junction-Ambient
R
θJA
105 /W℃
Thernal Resistance Junction-Case R
θJC
10 /W℃
Operating Junction Temperature Range T
OPR
-30～125
℃
Storage temperature range
T
stg
-65～150
℃
Junction temperature range T
J
150
℃
参数
Parameter
符号
Symbol
测试条件
Test Conditions
最小值
Min
典型值
Typ
最大值
Max
单位
Unit
Output Voltage V
O
T
j
=25℃ 4.8 5.0 5.2 V
V
i
=7V~20V Io=5mA~1.0A
P
D
≤15W
4.75 5.0 5.25 V
Load Regulation
△
V
Load
T
j
=25℃ Io=5mA~1.0A 100 mV
T
j
=25℃
Io=250mA~750mA
50 mV
Line Regulation
△
V
Line
T
j
=25℃ Vi=7V~25V 100 mV
T
j
=25℃ Vi=8V~12V 50 mV
Quiescent Current Iq
T
j
=25℃
8.0 mA
Quiescent Current Change
△
Iq
V
i
=7V~25V
0.8 mA
Io=5mA~1.0A 0.5 mA
Output Voltage Drift
△
Vo/
△
T Io=5mA T
j
=0~125℃
-0.4 mV/℃
Output Noise Voltage eN
B=10Hz~100KHz
T
j
=25℃
42 μV/Vo
Supply Voltage Rejection SVR V
i
=8V~18V f=120Hz 62 dB
Dropout Voltage Vd
Io=1.0A T
j
=25℃
2.0 V
Output Resistance Ro f=1KHz 15 mΩ
Short Circuit Current Isc
V
i
=35V T
j
=25℃
220 mA
极限参数 / Absolute Maximum Ratings(Ta=25℃)
电性能参数 / Electrical Characteristics(V
i
=10V,I
o
=500mA,T
j
=-30℃~125℃,unless otherwise
specified）