HIGH RIPPLE-REJECTION WLP PACKAGE LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.2.1
_00
S-L2985 Series
7.
Temperatur e coefficient of output voltage
⎜
⎜
⎜
⎛
ΔV
OUT
⎞
⎟
⎟
⎟
⎝
ΔTa
•
V
OUT
⎠
The shadowed area in
Figure 10
is the range where V
OUT
varies in the operating temperature range
when the temperature coefficient of the output voltage is
±100
ppm/°C.
Ex. S-L2985B28 Typ.
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 25°C.
Figure 10
A change in the temperature of the output voltage [mV/°C] is calculated using the following equation.
Δ
V
OUT
[
mV/
°
C
]
*1
=
V
OUT(S)
[
V
]
*2
× Δ
V
OUT
[
ppm/
°
C
]
*3
÷
1000
Δ
Ta
Δ
Ta
•
V
OUT
*1.
Change in temperature of output voltage
*2.
Specified output voltage
*3.
Output voltage temperature coefficient
10
Seiko Instruments Inc.
SII [ SEIKO INSTRUMENTS INC ]
