S-1133 Datasheet, PDF (16/37 Pages) Seiko Instruments Inc – HIGH RIPPLE-REJECTION AND LOW DROPOUT MIDDLE-OUTPUT CURRENT CMOS VOLTAGE REGULATOR

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