ncv8508b ON Semiconductor, ncv8508b Datasheet - Page 7

• Manufacturer Part Number: ncv8508b
• Description: Ncv8508b 5.0 V, 250 Ma Ldo With Watchdog And Reset
• Manufacturer: ON Semiconductor

which the circuit ceases to regulate against further reduction
in input voltage. Measured when the output voltage has
dropped 100 mV from the nominal value obtained at 14 V
input, dropout voltage is dependent upon load current and
junction temperature.
terminals with respect to ground.
change in the input voltage. The measurement is made under
conditions of low dissipation or by using pulse techniques
Dropout Voltage: The input−output voltage differential at
Input Voltage: The DC voltage applied to the input
Line Regulation: The change in output voltage for a
160
140
120
100
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
80
60
40
20
0
Figure 12. Dropout Voltage vs Output Current
0
0
Figure 14. Output Current vs Input Voltage
1
50
2
Output Current (mA)
Input Voltage (V)
100
3
TYPICAL PERFORMANCE CHARACTERISTICS
150
4
R
200
DEFINITION OF TERMS
L
= 33 W
5
+125°C
+25°C
−40°C
http://onsemi.com
250
6
7
such that the average chip temperature is not significantly
affected.
change in load current at constant chip temperature.
that does not contribute to the positive load current. The
regulator ground lead current.
ripple voltage to the peak−to−peak output ripple voltage.
output.
0.01
5.10
5.05
5.00
4.95
4.90
100
0.1
10
Load Regulation: The change in output voltage for a
Quiescent Current: The part of the positive input current
Ripple Rejection: The ratio of the peak−to−peak input
Current Limit: Peak current that can be delivered to the
1
−40
0
Figure 13. Output Voltage vs Temperature
−20
50
Figure 15. Output Capacitor ESR
0
100
Junction Temperature (°C)
20
Stable Region
Output Current (mA)
40
150
60
200
C
OUT
80
= 1.0 mF − 100 mF
100 120 140 160
250
V
I
OUT
IN
= 14 V
= 5.0 mA
300
350