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What is LM7910CT?

This electronic component, produced by the manufacturer "Fairchild Semiconductor", performs the same function as "3-Terminal 1A Negative Voltage Regulator".


LM7910CT Datasheet PDF - Fairchild Semiconductor

Part Number LM7910CT
Description 3-Terminal 1A Negative Voltage Regulator
Manufacturers Fairchild Semiconductor 
Logo Fairchild Semiconductor Logo 


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KA79XX / KA79XXA / LM79XX
3-Terminal 1 A Negative Voltage Regulator
September 2014
Features
• Output Current in Excess of 1 A
• Output Voltages of: -5 V, -6 V, -8 V, -9 V, -12 V, -15 V,
-18 V, -24 V
• Internal Thermal Overload Protection
• Short-Circuit Protection
• Output Transistor Safe Operating Area Compensation
Description
The KA79XX / KA79XXA / LM79XX series of three-termi-
nal negative regulators are available in a TO-220 pack-
age with several fixed output voltages, making them
useful in a wide range of applications. Each type employs
internal current limiting, thermal shutdown, and safe
operating area protection.
TO-220
Input
Ordering Information
Product Number
KA7905TU
KA7906TU
KA7908TU
KA7909TU
KA7912TU
KA7915TU
KA7918TU
KA7924TU
KA7912ATU
KA7915ATU
LM7905CT
LM7908CT
LM7909CT
LM7910CT
LM7912CT
LM7915CT
LM7918CT
Output Voltage
Tolerance
±4%
±2%
±4%
© 2002 Fairchild Semiconductor Corporation
KA79XX / KA79XXA / LM79XX Rev. 1.1.1
1
1. GND 2. Input 3. Output
Package
Packing Method
Operating
Temperature
TO-220
(Dual Gauge)
Rail
0 to +125°C
TO-220
(Single Gauge)
www.fairchildsemi.com

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LM7910CT equivalent
Electrical Characteristics (KA7908 / LM7908)
(VI = -14 V, IO = 500 mA, 0°C TJ +125°C, CI = 2.2 μF, CO =1 μF; unless otherwise specified.)
Symbol
Parameter
Conditions
Min. Typ. Max. Unit
VO Output Voltage
TJ = +25°C
IO = 5 mA to 1 A, PO 15 W,
VI = -10 V to -23 V
-7.7 -8.0 -8.3
-7.6 -8.0 -8.4
V
ΔVO
Line Regulation(5)
TJ = +25°C
VI = -10.5 V to -25 V
VI = -11 V to -17 V
10 160
mV
5 80
ΔVO
Load Regulation(5)
TJ = +25°C, IO = 5 mA to 1.5 A
TJ = +25°C, IO = 250 mA to 750 mA
12 160
mV
4 80
IQ Quiescent Current
TJ = +25°C
3 6 mA
ΔIQ
Quiescent Current
Change
IO = 5 mA to 1 A
VI = -10.5 V to -25 V
0.05
0.10
0.50
1.00
mA
ΔVo/ΔT
Temperature Coefficient
of VD
IO = 5 mA
-0.6 mV/°C
VN
Output Noise Voltage
f = 10 Hz to 100 kHz, TA = +25°C
175 μV
RR Ripple Rejection
f = 120 Hz, ΔVI = 10 V
54 60
dB
VD Dropout Voltage
TJ = +25°C, IO = 1 A
2V
ISC Short-Circuit Current TJ = +25°C, VI = -35 V
300 mA
IPK Peak Current
TJ = +25°C
2.2 A
Note:
5. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must
be taken into account separately. Pulse testing with low duty is used.
© 2002 Fairchild Semiconductor Corporation
KA79XX / KA79XXA / LM79XX Rev. 1.1.1
5
www.fairchildsemi.com


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Part NumberDescriptionMFRS
LM7910CTThe function is 3-Terminal 1A Negative Voltage Regulator. Fairchild SemiconductorFairchild Semiconductor

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