HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-L2980 Series
Rev.4.1_00
ΔVOUT
7. Temperature Coefficient of Output Voltage
ΔTa • VOUT
The shadowed area in Figure 10 is the range where VOUT varies in the operating temperature range
when the temperature coefficient of the output voltage is ±100 ppm/°C.
Example of S-L2980A28 Typ. product
VOUT
[V]
+0.28 mV / °C
*1
VOUT(E)
−0.28 mV / °C
−40
25
Ta [°C]
85
*1. VOUT(E) is a mesured value of output voltage at 25 °C.
Figure 10
Temperature change ratio in the output voltage [mV/°C] is calculated by using the following equation.
ΔVOUT
ΔTa
ΔVOUT
*2
[
mV/°C *1
]
= VOUT(S)
[
V
]
×
[
ppm/°C *3
÷1000
]
ΔTa • VOUT
*1. Temperature change ratio of the output voltage
*2. Specified output voltage
*3. Output voltage temperature coefficient
10
Seiko Instruments Inc.
SII [ SEIKO INSTRUMENTS INC ]
