SR78MXXD
VER A01
- 1 -
WWW.SALLTECH.COM
IDM Enterprise Specialized in Power Semiconductors
Document:S05T40001
TO-252
Features
Output Current of 500mA
Output transistor safe area protection
No external components
Package：TO-252
General Description
SR78MXXD is three-terminal positive regulators. One of these regulators can deliver up to 1A of
output current.When used as a replacement for a zener diode-resist or Combination, an effective
improvement in output impedance can be obtained, together with lower quiescent current.
Block Diagram
Pin Configuration
PIN NO.
PIN NAME
FUNCTION
1
VOUT
Output voltage pin
2
GND
GND Pin
3
VIN
Input voltage pin
SR78MXXD
VER A01
- 2 -
WWW.SALLTECH.COM
IDM Enterprise Specialized in Power Semiconductors
Document:S05T40001
Absoulte Maximum Ratings(Ta=25℃)
Note:The absolute maximum ratings are rated values exceeding which the product could suffer physical damage.
These values must therefore not be exceeded under any condition.
Electrical Characteristic (Cin=0.33uF, Co=0.1uF, 0���Tj≤125℃，unless otherwise noted)
LNR: Line Regulation. The change in output voltage for a change in the input voltage. The measurement is made under conditions of low
dissipation or by using pulse techniques such that the average chiptemperature is not significantly affected.
LDR: Load Regulation.The change in output voltage for a change in load current at constant chip temperature.
Typical Application
Symbol
Parameter
Rating
Unit
VIN MAX
Input supply voltage
40
V
Iout
MAX. Output current
500
mA
Pmax
MAX Power
1
W
Tj
Maximum Junction temperature
-25~125
℃
Tstr
Storage temperature
-55~125
℃
T
S
Soldering temperature and time
+260(10S)
℃
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
VIN
Input Voltage
35
V
Vout
Output Voltage
Io=40mA, VIN=10V
0.964vout
vout
1.036vout
V
Io=1mA~40mA,VIN=7V~18V
0.96vout
vout
1.04vout
Io=1mA~10mA,VIN=10V
0.95vout
vout
1.05vout
LNR
Line Regulation
VIN=7V~18V, Io=40mA
-150
150
mV
VIN=8V~18V, Io=40mA
-60
60
LDR
Load Regulation
VIN=10V,Io=1mA~100mA
-100
100
mV
VIN=10V,Io=1mA~40mA
-30
30
Iout
Output Current
VIN=7.0V,VOUT=5.0V
500
VDIF
Dropout Voltage
Ta=25
℃，
Io=100mA
1.7
V
IQ
Quiescent Current
VIN=10V
1.5
mA
△
IQ
Quiescent Current Change
VIN=8V~18V, I
O
=40mA
-1.5
1.5
mA
VIN=10V,IOUT=1mA~40mA
-0.1
0.1