Datasheet

LM79M05, LM79M12, LM79M15
www.ti.com SNOS553D –MAY 1998–REVISED APRIL 2013
Electrical Characteristics LM79M12C, LM79M15C
Conditions unless otherwise noted: I
OUT
= 350mA, C
IN
= 2.2μF, C
OUT
= 1 μF, 0°C ≤ T
J
≤ +125°C
Part Number LM79M12C LM79M15C
Output Voltage −12V −15V Units
Input Voltage (Unless Otherwise Specified) −19V −23V
Symbo Parameter Conditions Min Typ Max Min Typ Max
l
V
O
Output Voltage T
J
= 25°C −11.5 −12.0 −12.5 −14.4 −15.0 −15.6 V
5 mA ≤ I
OUT
≤ 350mA −11.4 −12.6 −14.25 −15.75 V
(−27 ≤ V
IN
≤ −14.5) (−30 ≤ V
IN
≤ −10.5)
ΔV
O
Line Regulation T
J
= 25°C
(1)
5 80 5 80 mV
(−30 ≤ V
IN
≤ −14.5) (−30 ≤ V
IN
≤−17.5)
3 50 3 50 mV
(−25 ≤ V
IN
≤ − 15) (−28 ≤ V
IN
≤ −18)
ΔV
O
Load Regulation T
J
= 25°C,
(1)
30 240 30 240 mV
5mA ≤ I
OUT
≤ 0.5A
I
Q
Quiescent Current T
J
= 25°C 1.5 3 1.5 3 mA
ΔI
Q
Quiescent Current With Input Voltage 0.4 0.4 mA
Change (−30 ≤ V
IN
≤ −14.5) (−30 ≤ V
IN
≤ −27)
With Load,
5mA ≤ I
OUT
≤ 350mA 0.4 0.4 mA
V
n
Output Noise T
A
= 25°C, 400 400 μV
Voltage 10Hz ≤ f ≤ 100Hz
Ripple Rejection f = 120Hz 54 70 54 70 dB
(−25 ≤ V
IN
≤ −15) (−30 ≤ V
IN
≤ −17.5)
Dropout Voltage T
J
= 25°C, I
OUT
= 0.5A 1.1 1.1 V
I
OMAX
Peak Output Current T
J
= 25°C 800 800 mA
Average Temperature I
OUT
= 5mA,
Coefficient of Output 0°C ≤ T
J
≤ 100°C −0.8 −1.0 mV/°C
Voltage
(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.
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