L79L05ACUTR Power Path Management IC Linear Voltage Regulators 5.0V 0.1A Negative
L79L05ACUTR Power Path Management IC Linear Voltage Regulators 5.0V 0.1A Negative
Description
The L79L series of three-terminal negative regulators employ internal current limiting and thermal shutdown, making them essentially indestructible. If adequate heat-sink is provided, they can deliver up to 100 mA output current. They are intended as fixed voltage regulators in a wide range of applications including local or on- card regulation for elimination of noise and distribution problems associated with single-point regulation. In addition, they can be used with power pass elements to make high-current voltage regulators. The L79L series used as Zener diode/resistor combination replacement, offers an effective output impedance improvement of typically two orders of magnitude, along with lower quiescent current and lower noise.
Electrical characteristics
Table 3: Electrical characteristics of L79L05AC and L79L05AB
|
Symbol |
Parameter |
Test conditions |
Min. |
Typ. |
Max. |
Unit |
|
VO |
Output voltage |
TJ =25°C |
-4.8 |
-5 |
-5.2 |
V |
|
VO |
Output voltage |
IO =1to40mA,VI =-7to-20V |
- 4.75 |
- 5.25 |
V |
|
|
IO =1to70mA,VI =-10V |
- 4.75 |
- 5.25 |
||||
|
ΔVO |
Line regulation |
VI =-7to-20V,TJ =25°C |
150 |
mV |
||
|
VI =-8to-20V,TJ =25°C |
100 |
|||||
|
ΔVO |
Load regulation |
IO =1to100mA,TJ =25°C |
60 |
mV |
||
|
IO =1to40mA,TJ =25°C |
30 |
|||||
|
Id |
Quiescent current |
TJ =25°C |
6 |
mA |
||
|
TJ = 125 °C |
5.5 |
mA |
||||
|
ΔId |
Quiescent current change |
IO =1to40mA |
0.1 |
mA |
||
|
VI =-8to-20V |
1.5 |
|||||
|
eN |
Output noise voltage |
B = 10 Hz to 100 kHz, TJ = 25 °C |
40 |
μV |
||
|
SVR |
Supply voltage rejection |
VI =-8to-18V,f=120HzIO =40 mA,TJ =25°C |
41 |
49 |
dB |
|
|
Vd |
Dropout voltage |
1.7 |
V |
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