AP2125N-3.3TRG1

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AP2125N-3.3TRG1

IC REG LINEAR 3.3V 300MA SOT23-3

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  • 製造商。 部分 #AP2125N-3.3TRG1
  • 包 SOT23-3
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規格

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
OutputConfiguration Positive
OutputType Fixed
NumberofRegulators 1
Voltage-Input(Max) 6V
Voltage-Output(Min/Fixed) 3.3V
VoltageDropout(Max) 0.3V @ 300mA
Current-Output 300mA
Current-Quiescent(Iq) 90 µA
PSRR 65dB (100Hz ~ 1kHz)
ProtectionFeatures Over Current, Over Temperature
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case TO-236-3, SC-59, SOT-23-3

概述

Description

AP2125N-3.3TRG1 is a fixed-output buck (step-down) regulator from the AP family. It converts a low-voltage input (typically 2.5–5.5 V) to a stable 3.3 V rail. The “N-3.3” designates a fixed 3.3 V output; “TRG1” denotes the tape-and-reel packaging variant. It is a compact, integrated switching regulator (often with internal switch and control logic) that requires only a few external components (inductor, input/output capacitors) to form a complete buck regulator. Features commonly include enable control, overcurrent/short-circuit protection, and thermal shutdown, delivering reasonable efficiency for portable electronics. Typical applications: power rails for microcontrollers, processors, memory, and other onboard peripherals in handhelds and embedded systems. For exact electrical specs (input range, maximum load current, efficiency, pinout, and thermal performance), consult the official datasheet.

Package

SOT-23-5 (SC-70-5) package, Tape & Reel version (TRG1).

Pinout

Pin count: 5 pins.
Function: Fixed 3.3V low-dropout regulator (LDO) with an enable control pin (input, ground, output, enable, and one additional pin per package).

Manufacturer

Manufacturer: Anpec Electronics Corp. (AP). It is a Taiwan-based fabless semiconductor company that designs and markets power-management ICs (e.g., LDO regulators, DC-DC converters, load switches) for consumer electronics and automotive applications.

Application

AP2125N-3.3TRG1 is a fixed 3.3V low-dropout regulator (LDO). Common applications: power rails for microcontrollers, DSPs/FPGA logic; memory, sensors and analog front-end ICs; RF modules and wireless transceivers; portable/battery-powered devices and IoT nodes; consumer electronics (audio/video, peripherals); USB peripherals and other embedded systems. Packaged in tape-and-reel (TRG1) for automated assembly.

Equivalent

Equivalent products are other fixed 3.3 V LDO regulators in similar footprints (SOT-23-3/5) with comparable current. Examples:
- Microchip MCP1700-33 (SOT-23-3, up to 250 mA)
- Microchip MIC5205-3.3 (SOT-23-5, ~150 mA)
- TI TLV70033 (SOT-23-5, ~150 mA)
- Analog Devices ADP3333 (SOT-23-5, ~200–250 mA)
Note: verify pinout, input range, dropout, and package with the supplier’s cross-reference.

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