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ET7805m
DESCRIPTION
The ET7805m is fixed-voltage
monolithic integrated-circuit voltage
regulator, which is designed for a wide
range of applications. These applications
include on-card regulation for
elimination of noise and distribution
problems associated with single-point
regulation. ET7805m can deliver up to
1.5 amperes of output current. The
internal limiting and termal shutdown
features of ET7805m make it essentially
immune to overload.
The ET7805m is available in the plastic
TO-252, TO-220 and TO-263 package.
TO-252 TO-220 TO-263
FEATURE
Ø 3-Terminal Regulators
Ø Output Current Up to 1.5 A
Ø No External Components
Ø Internal Thermal Overload
Protection
Ø High Power Dissipation Protection
Ø Internal Short-Circuit Current
Limiting
Ø Output Transistor Safe-Area
Compensation
Absolute maximum ratings over operating temperature range
(unless otherwise noted)
ET 7805m UNIT
Input voltage 35 V
Continuous total dissipation at 25 free-air temperature
Continuous total dissipation at (or below) 25 case temperature
Operating free-air, case, or virtual junctions temperature range 0 to 150
Storage temperature range -65 to 150
Lead temperature 1.6mm (1/16) from case for 10 seconds 260
2
15
E-mail: [email protected] Http://www.estek.com.cn
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ET7805m
Recommended operating conditions
PARAMETER MIN MAX UNIT
Input voltage, VI 7 25 V
Output current, IO 1.5 A
Operating virtual junction temperature,
TJ
ET7805m electrical characteristics
VI = 10V,IO = 500mA (unless otherwise noted)
Output voltage**
Ripple rejection VI = 8V to 18V, f = 120Hz
Output resistance f = 1KHz
IO = 5mA to 1A,
VI = 8V to 21V, P 15W
VI = 8V to 25V 3 100 Input regulation
VI = 8V to 12V
IO = 5mA to 1.5A 15 100 Output regulation
IO = 250mA to750mA
0 125
0 to 125
0 to 125
0 to 125
25
25
25
ET7805m PARAMETER TEST CONDITIONS*
MIN TYP MAX
4.8 5 5.2
4.75 5 5.25
1 50
62 78 dB
5 50
0.01 7
UNIT
mV
mV
V
Temperature coefficient of
output voltage
Output noise voltage f = 10Hz to 100KHz
Dropout voltage IO = 1A
Bias current
Short-circuit output current
Peak output current
IO = 5mA
VI = 7V to 25V 1.3 Bias current change
IO = 5mA to 1A
0 to 125
0 to 125
25
25
25
25
25
-1.1
40
2.0 V
4.2 8
0.5
750
2.2 A
*Pulse testing techniques are used to maintain the junction temperature as close to the
ambient temperature as possible. Thermal effects must be taken into account
separately.
** This specification applies only for dc power dissipation permitted by absolute
maximum ratings.
mV /
V
mA
E-mail: [email protected] Http://www.estek.com.cn
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