MC79XXCT Datasheet, PDF (5/8 Pages) Vishay Siliconix – 3-Terminal Fixed Negative Voltage Regulators

MC79xxCT Series
Vishay
formerly General Semiconductor
Electrical Characteristics – MC7915
Vin = –23V, Iout = 500mA, Cin = 2µF, Cout = 1µF; TJ = 0°C to 125°C, unless otherwise noted.
Parameter
Symbol
Test
Circuit
Conditions
Min. Typ. Max. Unit
Output Voltage
TJ = 25°C
–14.7 –15 –15.3
Vo
1
Vin = –17.5 to –30V,
Io = 5mA to 1A
–14.55
— –15.45
V
Line Regulation
(TJ = 25°C)
Load Regulation
(TJ = 25°C)
REGline
1
Vin = –17.5 to –30V
—
11
300
mV
Vin = –18 to –22V
—
3
150
Io = 5mA to 1.5A
—
12
300
REGload
1
mV
Io = 250mA to 750mA —
4
150
Quiescent Current
Quiescent Current Change
(TJ = 25°C)
Output Noise Voltage (TJ = 25°C)
Ripple Rejection Ratio
Dropout Voltage
Peak Output Current
Temp. Coefficient of Output Voltage
Iq
2
TJ = 25°C
—
2.5
5
mA
Vin = –17.5 to –30V
—
—
1
∆Iq
2
mA
Io = 5mA to 1A
—
—
0.5
Vn
1
f = 10Hz to 100KHz
—
90
—
µV
RR
3
Vin = –18 to –28V
54
69
—
dB
Io = 100mA, f = 120Hz
Vdrop
Io = 1.0A, TJ = 25°C
—
1.1
—
V
Io-peak
1
TJ = 25°C
—
2.1
—
A
∆Vo/∆TA
1 Io = 5mA, TJ = 0 to125°C —
0.9
— mV/°C
Electrical Characteristics – MC7918
Vin = –27V, Iout = 500mA, Cin = 2µF, Cout = 1µF; TJ = 0°C to 125°C, unless otherwise noted.
Parameter
Symbol
Test
Circuit
Conditions
Min. Typ. Max. Unit
Output Voltage
TJ = 25°C
–17.64 –18.0 –18.36
Vo
1
Vin = –21 to –33V,
Io = 5mA to 1A
V
–17.46 — –18.54
Line Regulation
(TJ = 25°C)
REGline
1
Vin = –21 to –33V
Vin = –22 to –26V
—
15
360
mV
—
5
180
Load Regulation
(TJ = 25°C)
Io = 5mA to 1.5A
—
12
360
REGload
1
mV
Io = 250mA to 750mA —
4
180
Quiescent Current
Iq
2
TJ = 25°C
—
2.5
5
mA
Quiescent Current Change
(TJ = 25°C)
Vin = –21 to –33V
—
—
1
∆Iq
2
mA
Io = 5mA to 1A
—
—
0.5
Output Noise Voltage (TJ = 25°C)
Vn
1
f = 10Hz to 100KHz
—
110
—
µV
Ripple Rejection Ratio
RR
3
Vin = –21 to –31V
53
68
—
dB
Io = 100mA, f = 120Hz
Dropout Voltage
Vdrop
Io = 1.0A, TJ = 25°C
—
1.1
—
V
Peak Output Current
Io-peak
1
TJ = 25°C
—
2.1
—
A
Temp. Coefficient of Output Voltage
∆Vo/∆TA
1
Io = 5mA, TJ = 0 to125°C —
–1
— mV/°C
Document Number 74814
11-Jun-02
www.vishay.com
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