LM7905J 查看數據表（PDF） - Tiger Electronic
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LM7905J Datasheet PDF : 1 Pages
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TIGER ELECTRONIC CO.,LTD
Product specification
3-Terminal 1A Positive Voltage Regulator
LM7905J
GENERAL DESCRIPTION
The LM7905 series of three terminal positive regulators are available in the TO-220 package and with
several fixed output voltages, making them useful in a wide range of applications. Each type employs
internal current limiting, thermal shut down and safe operating area protection, making it essentially
indestructible. If adequate heat sinking is provided, they can deliver over 1A output current. Although
designed primarily as fixed voltage regulators, these devices can be used with external components to
obtain adjustable voltages and currents.
ABSOLUTE MAXIMUM RATINGS ( Ta = 25 OC)
Parameter
Symbol Typ Unit
Input Voltage
VI
Output Voltage
VO
Peak Current
IPK
Operating Temperature
Range
TOPR
Storage Temperature Range TSTG
-35
V
-5.0
V
-2.2
A
0~125 oC
-65~150 oC
TO-252
ELECTRICAL CHARACTERISTICS ( Ta = 25 OC)
(Refer to test circuit, Io = -500mA, Vi = -10V, Ci= 2.2uF, Co=1.0uF unless otherwise specified)
Parameter
Output Voltage
Line Regulation (Note1)
Load Regulation (Note1)
Quiescent Current
Quiescent Current Change
Ripple Rejection
Dropout Voltage
Short Circuit Current
Peak Current
Symbol
Test Conditions
VO VI = -9V to -21V
VI = -7V to -25V
Regline
VI = -8V to -12V
Regload IO = -5.0mA to-1.5A
IO =-250mA to -750mA
IQ
TJ =+25 oC
IO = -5mA to -1A
ΔIQ
VI = -8V to -25V
RR f = 120Hz, VO = -8V to -18V
VDrop IO = -1A, TJ =+25 oC
ISC VI = -35V, TA =+25 oC
IPK
TJ =+25 oC
Min
-4.85
—
—
—
—
—
—
—
54
—
—
—
Typ Max Unit
-5.0
-7.0
-2.0
-10
-3
-3
—
—
60
-2
-300
-2.2
-5.15 V
-100
mV
-50
-100
mV
-50
-6 mA
-0.5
mA
-0.8
— dB
—V
— mA
—A
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