S1167 Datasheet, PDF (12/31 Pages) Seiko Instruments Inc – ULTRA LOW CURRENT CONSUMPTION, HIGH RIPPLE REJECTION

ULTRA LOW CURRENT CONSUMPTION, HIGH RIPPLE REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1167 Series
Rev.3.2_00
7. Output Voltage Temperature Coefficient _{ΔTa}^ΔV_•^O_V^UOTUT _
The shaded area in Figure 11 is the range where V_OUT varies in the operation temperature range when the output
voltage temperature coefficient is ±100 ppm/°C.
VOUT
[V]
Example of S-1167B28 typ. product
+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 Ta = +25°C.
Figure 11
A change in the temperature of the output voltage [mV/°C] is calculated using the following equation.
ΔV_OUT
ΔTa
[mV/°C]^*1 = V_OUT(S) [V]^*2 ×
ΔV_OUT
ΔTa • V_OUT
[ppm/°C]^*3 ÷ 1000
*1. Change in temperature of the output voltage
*2. Set output voltage
*3. Output voltage temperature coefficient
12
Seiko Instruments Inc.