HIGH RIPPLE-REJECTION AND LOW DROPOUT MIDDLE-OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.2.1_00
S-1133 Series
∆VOUT
∆Ta VOUT
7. Temperature coefficient of output voltage
The shadowed area in Figure 18 is the range where VOUT varies in the operating temperature range when the
temperature coefficient of the output voltage is 130 ppm/°C.
Ex. S-1133B30 Typ.
VOUT
[V]
+0.39 mV/°C
*1
VOUT(E)
−0.39 mV/°C
−40
25
Ta [°C]
85
*1.
VOUT(E) is the value of the output voltage measured at 25°C.
Figure 18
A change in the temperature of the output voltage [mV/°C] is calculated using the following equation.
∆VOUT
∆Ta
∆VOUT
∆Ta VOUT
*2
[
mV/°C *1
]
= VOUT(S)
[
V
]
×
[
ppm/°C *3
]
÷ 1000
*1. Change in temperature of output voltage
*2. Specified output voltage
*3. Output voltage temperature coefficient
16
Seiko Instruments Inc.