S-1170 Datasheet, PDF (12/29 Pages) Seiko Instruments Inc – HIGH RIPPLE-REJECTION AND LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR

HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1170 Series
Rev.3.0_02
7.
Temperature coefficient of
output
voltage


∆V OUT
∆Ta • VOUT


The shadowed area in Figure 11 is the range where V_OUT varies in the operating temperature range
when the temperature coefficient of the output voltage is ±150 ppm/°C.
Ex. S-1170B28 Typ.
V_OUT
[V]
+0.42 mV / °C
V_OUT(E)^*1
−0.42 mV / °C
−40
25
85
Ta [°C]
*1. V_OUT(E) is the value of the output voltage measured at 25°C.
Figure 11
A change in the temperature of the output voltage [mV/°C] is calculated using the following equation.
∆VOUT _{[mV / °C]*1 = [ VOUT(S) V]*2 ×} ∆VOUT _{[ppm / °C]*3 ÷1000}
∆Ta
∆Ta • VOUT
*1. Change in temperature of output voltage
*2. Specified output voltage
*3. Output voltage temperature coefficient
12
Seiko Instruments Inc.