S1200 Datasheet, PDF (13/37 Pages) Seiko Instruments Inc – HIGH RIPPLE-REJECTION LOW DROPOUT LOW INPUT-AND-OUTPUT CAPACITANCE CMOS VOLTAGE REGULATOR

HIGH RIPPLE-REJECTION LOW DROPOUT LOW INPUT-AND-OUTPUT CAPACITANCE CMOS VOLTAGE REGULATOR
Rev.5.1_01
S-1200 Series
7.
Output voltage temperature coefficient

∆V_OUT
∆Ta • V_OUT

The shaded area in Figure 12 is the range where VOUT varies in the operation temperature range when
the output voltage temperature coefficient is ±100 ppm/°C.
Example of S-1200B28 typ. product
V_OUT
[V]
+0.28 mV/°C
V_OUT(E)^*1
−0.28 mV/°C
−40
+25
+85
Ta [°C]
*1. V_OUT(E) is the value of the output voltage measured at Ta = +25°C.
Figure 12
A change in the temperature of the output voltage [mV/°C] is calculated using the following equation.
[ ] [ ] [ ] ^ΔVOUT
ΔVOUT
ΔTa ^{mV/°C *1 = VOUT(S) V *2 ×} ΔTa • VOUT ^{ppm/°C *3 ÷ 1000}
*1. Change in temperature of output voltage
*2. Set output voltage
*3. Output voltage temperature coefficient
13