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HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR - Seiko Instruments

Número de pieza S-1131
Descripción HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Fabricantes Seiko Instruments 
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S-1131 datasheet

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S-1131 pdf
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.3.0_01
S-1131 Series
„ Pin Configuration
SOT-89-3
Top view
Pin No.
1
2
3
Table 2
Symbol
VOUT
VSS
VIN
Description
Output voltage pin
GND pin
Input voltage pin
www.DataSheet4U.com
12 3
Figure 3
SOT-89-5
Top view
54
12 3
Figure 4
Table 3
Pin No.
1
2
3
4
5
Symbol
VOUT
VSS
NC*1
ON/OFF
VIN
Description
Output voltage pin
GND pin
No connection
Shutdown pin
Input voltage pin
*1. The NC pin is electrically open.
The NC pin can be connected to VIN or VSS.
Seiko Instruments Inc.
5

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S-1131 arduino
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1131 Series
Rev.3.0_01
„ Explanation of Terms
1. Low dropout voltage regulator
The low dropout voltage regulator is a voltage regulator whose dropout voltage is low due to its built-in
low on-resistance transistor.
2. Output voltage (VOUT)
The accuracy of the output voltage is ensured at ±1.0% under the specified conditions of fixed input
voltage*1, fixed output current, and fixed temperature.
*1. Differs depending the product.
www.DataSheet4U.comCaution If the above conditions change, the output voltage value may vary and exceed the
accuracy range of the output voltage. Please see the electrical characteristics and
attached characteristics data for details.
3.
Line
regulation

VOUT1
VIN VOUT

Indicates the dependency of the output voltage on the input voltage. That is, the value shows how much
the output voltage changes due to a change in the input voltage with the output current remaining
unchanged.
4. Load regulation (VOUT2)
Indicates the dependency of the output voltage on the output current. That is, the value shows how
much the output voltage changes due to a change in the output current with the input voltage remaining
unchanged.
5. Dropout voltage (Vdrop)
Indicates the difference between the input voltage VIN1, which is the input voltage (VIN) at the point where
the output voltage has fallen to 98% of the output voltage value VOUT3 after VIN was gradually decreased
from VIN = VOUT(S) + 1.0 V, and the output voltage at that point (VOUT3 × 0.98).
Vdrop = VIN1 (VOUT3 × 0.98)
10 Seiko Instruments Inc.

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