HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.6.0_00
S-1112/1122 Series
7.
Temperatur e
coefficien t
of
output
voltage
⎜⎛
⎝
ΔV OUT
ΔTa • VOUT
⎟⎞
⎠
The shadowed area in Figure 11 is the range where VOUT varies in the operating temperature range
when the temperature coefficient of the output voltage is ±100 ppm/°C.
Ex. S-1112/1122B28 Typ.
VOUT
[V]
+0.28 mV / °C
VOUT(E)*1
−0.28 mV / °C
−40
25
85
Ta [°C]
*1. VOUT(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.
ΔVOUT [mV / °C]*1 = [ VOUT(S) V]*2 × ΔVOUT [ppm / °C]*3 ÷1000
ΔTa
ΔTa • VOUT
*1. Change in temperature of output voltage
*2. Specified output voltage
*3. Output voltage temperature coefficient
Seiko Instruments Inc.
13