LM79M05, LM79M12, LM79M15
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SNOS553D –MAY 1998–REVISED APRIL 2013
Electrical Characteristics LM79M12C, LM79M15C
Conditions unless otherwise noted: IOUT = 350mA, CIN = 2.2μF, COUT = 1 μF, 0°C ≤ TJ ≤ +125°C
Part Number
LM79M12C
−12V
LM79M15C
−15V
Output Voltage
Units
Input Voltage (Unless Otherwise Specified)
−19V
−23V
Symbo
l
Parameter
Conditions
Min
Typ
Max
Min
Typ
Max
VO
Output Voltage
TJ = 25°C
−11.5
−11.4
−12.0
−12.5
−12.6
−14.4
−15.0
−15.6
V
V
5 mA ≤ IOUT ≤ 350mA
−14.25
−15.75
(−27 ≤ VIN ≤ −14.5)
(−30 ≤ VIN ≤ −10.5)
(1)
ΔVO
Line Regulation
Load Regulation
TJ = 25°C
5
80
50
5
80
50
mV
mV
mV
(−30 ≤ VIN ≤ −14.5)
3
(−30 ≤ VIN ≤−17.5)
3
(−25 ≤ VIN ≤ − 15)
(−28 ≤ VIN ≤ −18)
(1)
ΔVO
TJ = 25°C,
30
240
30
240
5mA ≤ IOUT ≤ 0.5A
TJ = 25°C
IQ
Quiescent Current
Quiescent Current
Change
1.5
3
1.5
3
mA
mA
ΔIQ
With Input Voltage
0.4
0.4
(−30 ≤ VIN ≤ −14.5)
(−30 ≤ VIN ≤ −27)
With Load,
5mA ≤ IOUT ≤ 350mA
TA = 25°C,
0.4
0.4
mA
Vn
Output Noise
Voltage
400
400
70
μV
10Hz ≤ f ≤ 100Hz
f = 120Hz
Ripple Rejection
54
70
54
dB
(−25 ≤ VIN ≤ −15)
(−30 ≤ VIN ≤ −17.5)
Dropout Voltage
TJ = 25°C, IOUT = 0.5A
TJ = 25°C
1.1
1.1
V
IOMAX
Peak Output Current
Average Temperature
800
800
mA
IOUT = 5mA,
Coefficient of Output
Voltage
0°C ≤ TJ ≤ 100°C
−0.8
−1.0
mV/°C
(1) Regulation is measured at a constant junction temperature by pulse testing with a low duty cycle. Changes in output voltage due to
heating effects must be taken into account.
Copyright © 1998–2013, Texas Instruments Incorporated
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