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AP2125K-3.3TRG1 The Diodes Incorporated AP2125K-3.3TRG1 is a 300mA CMOS LDO voltage regulator with a fixed 3.3V output. It features low noise, high ripple rejection, and low dropout voltage.
Mfr Part #:

AP2125K-3.3TRG1

Available from 4 distributors
Mfr Name: Diodes Incorporated
Diodes Incorporated
The Diodes Incorporated AP2125K-3.3TRG1 is a 300mA CMOS LDO voltage regulator with a fixed 3.3V output. It features low noise, high ripple rejection, and low dropout voltage.
✓ Total Stock: 84,587 pcs
$ Price Range: $0.28

AP2125K-3.3TRG1 Available from 4 distributors

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Risen Electronics ✓
Non-Authorised Inventory information
70,000 pcs
On Request
70000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
Optech Co.,Limited ✓
Non-Authorised Inventory information
8,508 pcs
On Request
8508 pcs On Request 1 On Request On Request 16+ On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
3,539 pcs
On Request
3539 pcs On Request 1 On Request On Request On Request On Request On Request
Smaxon Electronics ✓
Non-Authorised Inventory information
2,540 pcs
On Request
2540 pcs On Request 1 On Request On Request 19+ On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

AP2125K-3.3TRG1 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Control Features
Current
Halogen Free
Input Voltage
Junction Temperature
Mounting Type
Number of Regulators
Operating Temperature
Output Configuration
Output Current
Output Type
PSRR
Protection Features
Quiescent Current
Supplier Device Package
Voltage
Voltage Dropout (Max)
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AP2125K-3.3TRG1 Description

Short technical summary and product information.

The AP2125K-3.3TRG1 from Diodes Incorporated is a 300mA positive voltage regulator IC fabricated using CMOS process. It offers a fixed 3.3V output voltage with high accuracy and excellent line/load regulation.

 

Key features include high ripple rejection (65dB typical), low dropout voltage (0.3V @ 300mA), extremely low noise (50µVrms typical), and low quiescent current (60µA typical). It also incorporates over-current and over-temperature protection circuits.

 

This regulator is suitable for battery-powered applications due to its low power consumption. It is available in a SOT-23-5 surface mount package, compatible with low ESR ceramic capacitors, and is RoHS3 compliant.

 

Applications include CDMA/GSM cellular handsets, battery-powered equipment, laptops, palmtops, notebook computers, hand-held instruments, PCMCIA cards, and portable information appliances.

AP2125K-3.3TRG1 Quick Information

Product Type: Linear Voltage Regulator
Series: AP2125
Canonical Name: AP2125K-3.3TRG1 CMOS LDO Regulator
Subcategory: Linear

AP2125K-3.3TRG1 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Totally Lead-Free

AP2125K-3.3TRG1 Estimated Pricing

Qty Low High
1+ $0.28 $0.28

Estimated market price range - modelled values for guidance only, not live distributor offers.

AP2125K-3.3TRG1 Features

  • 300mA maximum output current.
  • Fixed 3.3V output voltage.
  • Low dropout voltage of 0.3V.
  • High ripple rejection of 65dB.
  • Extremely low noise operation.

AP2125K-3.3TRG1 Applications

  • Ideal for battery-powered devices.
  • Suitable for cellular handsets.
  • Used in portable information appliances.
  • Applicable to notebook computers.

AP2125K-3.3TRG1 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the output voltage of the AP2125K-3.3TRG1?

The AP2125K-3.3TRG1 provides a fixed 3.3V output voltage.

What is the maximum output current for this LDO regulator?

The maximum output current for the AP2125K-3.3TRG1 is 300mA.

What is the dropout voltage of the AP2125K-3.3TRG1?

The dropout voltage is a maximum of 0.3V at 300mA output current.

What is the ripple rejection ratio of the AP2125K-3.3TRG1?

The ripple rejection ratio is typically 65dB between 100Hz and 1kHz.

What operating temperature range is the AP2125K-3.3TRG1 rated for?

The operating temperature range is -40°C to 85°C.

What package type is the AP2125K-3.3TRG1 supplied in?

The AP2125K-3.3TRG1 is supplied in a SOT-23-5 package.

Is the AP2125K-3.3TRG1 RoHS compliant?

Yes, the AP2125K-3.3TRG1 is RoHS3 compliant.

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