S-1701A2521-M5T1G Seiko Instruments, S-1701A2521-M5T1G Datasheet - Page 46

• Manufacturer Part Number: S-1701A2521-M5T1G
• Description: IC DETECT/REG 400MA 2.5V SOT23-5
• Manufacturer: Seiko Instruments

Specifications of S-1701A2521-M5T1G

• Applications: Converter, Battery Powered Devices
• Voltage - Input: 2 ~ 6.5 V
• Number Of Outputs: 1
• Voltage - Output: 2.5V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-5, SC-74A, SOT-25
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

46
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series
*1. In S-1701 series, when connecting the resistance R
*2. If the input voltage or load current changes transiently, an undershoot or overshoot occurs in the output voltage of
defining the current which flows into R
changes by ΔV
voltage falls and an output oscillation, occur.
the regulator. In the product types in which the output voltage of the regulator is detected by the detector, if the
output voltage is the detection voltage or lower due to the undershoot, the detector operates and a reset signal
may be output.
undershoot is the minimum value or set a voltage range that allows the difference between the output voltage and
detection voltage to be equal to or greater than the undershoot.
IN
= I
To prevent this, set the value of the input-and-output capacitor of a regulator so that the
IN
×R
IN
at the time of load change. Thereby, keep in mind that phenomena, such as output
IN
as I
Seiko Instruments Inc.
IN
, VIN pin voltage falls by ΔV
IN
between an input power supply pin and a VIN pin, and
IN
= I
IN
×R
IN
at the time of overload, and
Rev.3.0
_00