S-1721 Seiko Instruments, S-1721 Datasheet - Page 17

• Manufacturer Part Number: S-1721
• Description: SUPER-SMALL PACKAGE 2-CIRCUIT HIGH RIPPLE-REJECTION LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
• Manufacturer: Seiko Instruments

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Rev.1.1
6. Temperature coefficient of output voltage
SUPER-SMALL PACKAGE 2-CIRCUIT HIGH RIPPLE-REJECTION LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
The shaded area in Figure 22 is the range where V
temperature coefficient of the output voltage is ±120 ppm/°C.
A change in the temperature of the output voltage [mV/°C] is calculated using the following equation.
*1. Change in temperature of output voltage
*2. Specified output voltage
*3. Output voltage temperature coefficient
∆V
_00
∆Ta
OUT
[
mV/
°
C
]
1 *
=
V
OUT(S)
V
OUT(E)
V
OUT
[V]
*1. V
[ ]
V
*1
2 *
×
OUT(E)
∆Ta
−40
∆V
Seiko Instruments Inc.
Example of V
•
is the value of the output voltage measured at 25°C.
OUT
V
OUT
∆Ta •V
∆V
[
ppm/
OUT
Figure 22
OUT
25
OUT
°
OUT
C
]
*3
= 3.0 V Typ. products
varies in the operating temperature range when the
÷
1000
85
+0.36 mV/°C
−0.36 mV/°C
Ta [°C]
S-1721 Series
17