S-814 SII [Seiko Instruments Inc], S-814 Datasheet - Page 11

• Manufacturer Part Number: S-814
• Description: LOW DROPOUT CMOS VOLTAGE REGULATOR
• Manufacturer: SII [Seiko Instruments Inc]

Rev.2.1
6. Dropout voltage (V
7. Temperature coefficient of output voltage
Indicates a difference between input voltage (V
of V
V
The shadowed area in Figure 11 is the range where V
the temperature coefficient of the output voltage is ±100 ppm/°C.
A change in temperatures of output voltage [mV/°C] is calculated using the following equation.
*1. The change in temperature of the dropout voltage
*2. Specified output voltage
*3. Output voltage temperature coefficient
*1. The mesurement value of output voltage at 25°C.
Δ
drop
Δ
V
Ta
OUT
OUT(E)
_00
=V
IN1
[
mV
−(V
by gradually decreasing the input voltage.
/
°
OUT(E)
C
]
*1
×0.98)
=
drop
V
V
V
OUT
OUT(E)
OUT
)
[V]
S (
*1
)
[ ]
V
Figure 11 Typical example of S-814A28A
2 *
×
−40
Δ
Ta
Δ
Seiko Instruments Inc.
V
•
OUT
V
OUT
LOW DROPOUT CMOS VOLTAGE REGULATOR
⎛
⎜
⎝
Δ
[
IN1
ppm
Ta
) and output voltage when output voltage falls by 98 %
Δ
25
V
•
/
OUT
°
V
C
OUT
OUT
]
3 *
varies in the operating temperature range when
⎞
⎟
⎠
÷
1000
85
+0.28 mV/°C
−0.28mV/°C
Ta [°C]
S-814 Series
11