S-818A40AMC-BGUT2G Seiko Instruments, S-818A40AMC-BGUT2G Datasheet - Page 11
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S-818A40AMC-BGUT2G
Manufacturer Part Number
S-818A40AMC-BGUT2G
Description
IC REG LDO 250MA 4V SOT23-5
Manufacturer
Seiko Instruments
Datasheet
1.S-818A20AMC-BGAT2G.pdf
(32 pages)
Specifications of S-818A40AMC-BGUT2G
Regulator Topology
Positive Fixed
Voltage - Output
4V
Voltage - Input
Up to 10V
Voltage - Dropout (typical)
0.2V @ 60mA
Number Of Regulators
1
Current - Output
250mA (Min)
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-5, SC-74A, SOT-25
Number Of Outputs
1
Polarity
Positive
Input Voltage Max
10 V
Output Voltage
4 V
Output Type
Fixed
Dropout Voltage (max)
0.26 V
Output Current
250 mA
Line Regulation
0.2 % / V
Load Regulation
50 mV
Voltage Regulation Accuracy
2 %
Maximum Power Dissipation
0.6 W
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
S-818A40AMC-BGUT2G
Manufacturer:
SEIKO/精工
Quantity:
20 000
Rev.3.0
4. Load regulation (ΔV
5. Dropout voltage (V
6. Temperature coefficient of output voltage
Load regulation indicates the output current dependence of output voltage. The value shows how much
the output voltage changes due to the change of the output current when the input voltage is kept
constant.
Let V
(V
and the resultant output voltage defined as following equation.
V
The output voltage lies in the shaded area in the whole operating temperature shown in Figure 11 when
the temperature coefficient of the output voltage is ± 100 ppm/ ° C.
*1. The value of the output voltage measured at 25 ° C.
Temperature change ratio for output voltage [mV/°C] is calculated by using the following equation.
*1. Temperature change ratio for output voltage
*2. Specified output voltage
*3. Output voltage temperature coefficient
Δ
drop
Δ
V
OUT(E)
Ta
OUT
_00
=V
IN1
Figure 11 Temperature coefficient of output voltage (Ex. Typ. product for S-818A28A)
IN1
) when gradually decreasing input voltage. The dropout voltage is the difference between the V
[
be an input voltage where the output voltage falls to the 98 % of the actual output voltage
mV/
−(V
°
OUT(E)
C
]
*1
=
×0.98)
V
drop
OUT3
OUT(S)
)
V
V
)
OUT
OUT(E)
[ ]
V
[V]
2 *
*1
×
Δ
Ta
Δ
−40
V
•
Seiko Instruments Inc.
OUT
V
OUT
LOW DROPOUT CMOS VOLTAGE REGULATOR
⎛
⎜
⎝
[
ppm/
ΔTa
ΔV
25
°
•
OUT
C
V
]
3 *
OUT
÷
1000
⎞
⎟
⎠
85
+0.28mV/°C
−0.28mV/°C
Ta [°C]
S-818 Series
IN1
11