MC79L00_06 Datasheet, PDF (6/11 Pages) ON Semiconductor – 100 mA Negative Voltage Regulators

MC79L00, MC79L00A Series
8.0
MC79L05C
6.0
V_O = −5.0 V
T_J = 25°C
4.0
2.0
TYPICAL CHARACTERISTICS
(T_A = +25°C, unless otherwise noted.)
−2.5
I_O = 1.0 mA
I_O = 100 mA
I_O = 40 mA
−2.0
I_O = 70 mA
−1.5
−1.0
Dropout of Regulation is
defined when
−0.5 _{DVO = 2% of VO}
I_O = 1.0 mA
I_O = 40 mA
0
0
−2.0
−4.0
−6.0
−0.8
−10
V_in, INPUT VOLTAGE (V)
Figure 4. Dropout Characteristics
0
0
25
50
75
100
125
T_J, JUNCTION TEMPERATURE (°C)
Figure 5. Dropout Voltage versus
Junction Temperature
4.2
4.0
3.8
3.6
3.4
MC79L05C
3.2 _{Vin = −10 V}
V_O = −5.0 V
3.0 _{IO = 40 mA}
0
0
25
50
75
100
125
T_A, AMBIENT TEMPERATURE (°C)
Figure 6. Input Bias Current versus
Ambient Temperature
5.0
4.0
3.0
MC79L05C
V_O = −5.0 V
2.0
I_O = 40 mA
1.0
0
0 −5.0 −10 −15 −20 −25 −30 −35 −40
V_in, INPUT VOLTAGE (V)
Figure 7. Input Bias Current versus
Input Voltage
10,000
1,000
No Heatsink
100
R_qJA = 200°C/W
P_D(max) to 25°C = 625 mW
10
25
50
75
100
125
150
T_A, AMBIENT TEMPERATURE (°C)
Figure 8. Maximum Average Power Dissipation
versus Ambient Temperature (TO−92)
170
3.2
150
2.8
P_D(max) for T_A = +50°C
130
2.4
110
90
70
Graph represents symmetrical layout ^2.0
ÎÎÎÎÎÎÎ _L
2.0 oz.
Copper
1.6
ÎÎÎÎÎÎÎ 1.2
L
3.0 mm
50
0.8
R_qJA
30
0.4
0
10
20
30
40
50
L, LENGTH OF COPPER (mm)
Figure 9. SOP−8 Thermal Resistance and Maximum
Power Dissipation versus P.C.B. Copper Length
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