The AP2127N-2.5TRG1 Series are positive voltage regulator ICs fabricated by CMOS process. The AP2127N-2.5TRG1 Series have features of low dropout voltage, low noise, high output voltage accuracy, and low current consumption which make them ideal for use in various battery-powered devices. AP2127N-2.5TRG1 has 1.0V, 1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 4.2V, 4.75V, 5.2V fixed voltage versions and 0.8V to 5.5V adjustable voltage versions.
Feature
Wide Operating Voltage: 2.5V to 6V
High Output Voltage Accuracy: ±2%
High Ripple Rejection: 68dB@ f = 1kHz, 54dB@ f = 10kHz
Low Standby Current: 0.1μA
Low Dropout Voltage: 170mV@300mA for VOUT = 3.3V, 140mV@300mA for VOUT = 5.2V
Low Quiescent Current: 60μA Typical
Low Output Noise: 60μVrms@VOUT = 0.8V
Short Current Limit: 50mA · Over Temperature Protection
Compatible with Low ESR Ceramic Capacitor: 1μF for CIN and COUT
Excellent Line/Load Regulation
Soft Start Time: 50μs
Auto Discharge Resistance: RDS(ON) = 60Ω
Applications
Datacom
Notebook Computers
Mother Board
The AP2127N-2.5TRG1 is a linear voltage regulator (LDO) designed by Diodes Incorporated. It features a fixed output voltage of 2.5V with a maximum output current of 300mA. The input voltage can go up to 6V. Housed in an SOT - 23 - 3 package (also available in TO - 236 - 3, SC - 59), it has built - in over - current and over - temperature protection features, making it suitable for various low - power applications that require a stable 2.5V power supply.
Benefits
Fixed 2.5V output voltage, suitable for applications requiring this specific voltage level
300mA output current capacity, sufficient for powering a range of low - power components
Low quiescent current of 90 μA, ideal for battery - powered devices to conserve power
High PSRR (68dB ~ 54dB from 100Hz ~ 10kHz), reducing power supply noise
Over - current and over - temperature protection, enhancing reliability
Operating temperature range of - 40°C ~ 85°C, suitable for a wide variety of environmental conditions
Surface - mount package (SOT - 23 - 3), easy for PCB assembly
RoHS compliant, meeting environmental standards
Pinout
The AP2127N - 2.5TRG1 in the SOT - 23 - 3 package has the following pin configuration:
VIN: Input voltage pin, which can accept up to 6V.
VOUT: Output voltage pin, providing a fixed 2.5V output.
GND: Ground pin, for the electrical reference of the regulator.
Application Examples
Portable electronic devices such as smartphones, tablets, and wearable devices
Low - power sensor circuits
Industrial control systems where a stable 2.5V power source is required
Battery - powered measurement instruments
Catalogue
FPGA / CPLD
Memory
MOS 
MCU 
DSP
OCEP
Secondary 
Other 
