HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1111/1121 Series
Rev.4.1_00
⎛
ΔVOUT
ΔTa •VOUT
⎞
6.
Temperatur e coefficien t of output voltage ⎜
⎟
⎟
⎜
⎝
⎠
The shadowed area in Figure 10 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-1111/1121B28 Typ.
VOUT
[V]
+0.28 mV / °C
*1
VOUT(E)
−0.28 mV / °C
−40
25
Ta [°C]
85
*1.
VOUT(E) is the value of the output voltage measured at 25°C.
Figure 10
A change in the temperature of the output voltage [mV/°C] is calculated using the following equation.
ΔVOUT
ΔTa
ΔVOUT
ΔTa • VOUT
*2
*3
[
mV/°C
]
*1 = VOUT(S)
[
V
]
×
[
ppm/°C
]
÷1000
*1. Change in temperature of output voltage
*2. Specified output voltage
*3. Output voltage temperature coefficient
13
Seiko Instruments Inc.
SII [ SEIKO INSTRUMENTS INC ]
