S-1172 Datasheet, PDF (13/34 Pages) Seiko Instruments Inc – HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR

Rev.1.1_00
HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1172 Series
6. Temperature coefficient of output voltage _ ^∆VOUT _
 ^{∆Ta • VOUT} 
The shadowed area in Figure 12 is the range where V_OUT varies in the operating temperature range when the
temperature coefficient of the output voltage is ±130 ppm/°C.
V_OUT [V]
Ex. S-1172B30 Typ.
+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 12
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
Seiko Instruments Inc.
13