AP2121AK-3.3TRE1 The Diodes Incorporated AP2121AK-3.3TRE1 is a high-speed, low-noise LDO voltage regulator. It provides a stable 3.3V output at up to 200mA.
Mfr Part #:

AP2121AK-3.3TRE1

Available from 1 distributors
Mfr Name: Diodes Incorporated
Diodes Incorporated
The Diodes Incorporated AP2121AK-3.3TRE1 is a high-speed, low-noise LDO voltage regulator. It provides a stable 3.3V output at up to 200mA.
✓ Total Stock: 4,000 pcs
$ Price Range: $0.28

AP2121AK-3.3TRE1 Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
4,000 pcs
4000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16

AP2121AK-3.3TRE1 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Control Features
Current
Mounting Type
Number of Regulators
Operating Temperature
Output Configuration
Output Current
Output Type
Output Voltage
PSRR
Protection Features
Supplier Device Package
Voltage
Voltage Dropout (Max)

AP2121AK-3.3TRE1 Description

Short technical summary and product information.

The AP2121AK-3.3TRE1 from Diodes Incorporated is a CMOS LDO voltage regulator designed for battery-powered devices. It features a fixed 3.3V output voltage and can supply up to 200mA of current. This regulator boasts high supply voltage ripple rejection of 70dB at 1kHz and extremely low noise of 30µVrms.

 

Key electrical characteristics include a typical dropout voltage of 150mV at 100mA, excellent line and load regulation, and high output voltage accuracy of ±2%. The device operates over a temperature range of -40°C to 85°C and includes an enable control feature for power management.

 

Packaged in a compact SOT-23-5 surface-mount package, the AP2121AK-3.3TRE1 is suitable for space-constrained applications. It is compatible with low ESR ceramic capacitors as low as 1µF, simplifying external component selection. This series is ideal for mobile phones, wireless communication equipment, and portable electronics.

AP2121AK-3.3TRE1 Quick Information

Product Type: LDO Voltage Regulator
Series: AP2121AK
Canonical Name: AP2121AK-3.3TRE1 High-Speed, Extremely Low-Noise LDO Regulator
Subcategory: LDO Voltage Regulator

AP2121AK-3.3TRE1 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

AP2121AK-3.3TRE1 Estimated Pricing

Qty Low High
1+ $0.28 $0.28

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

AP2121AK-3.3TRE1 Features

  • Provides a stable 3.3V output voltage.
  • Delivers up to 200mA of output current.
  • Features extremely low noise operation.
  • Offers high supply voltage ripple rejection.
  • Available in a compact SOT-23-5 package.

AP2121AK-3.3TRE1 Applications

  • Ideal for battery-powered devices.
  • Suitable for mobile phones.
  • Used in wireless communication equipment.
  • Applicable for portable games.
  • Useful for camera power supplies.

AP2121AK-3.3TRE1 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the AP2121AK-3.3TRE1?

The input voltage range is 2V to 6V.

What is the output voltage of the AP2121AK-3.3TRE1?

The output voltage is fixed at 3.3V.

What is the package type of the AP2121AK-3.3TRE1?

The package is SOT-23-5.

What is the operating temperature range?

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

What is the dropout voltage of the AP2121AK-3.3TRE1?

The typical dropout voltage is 150mV at 100mA output.

Does the AP2121AK-3.3TRE1 have over current protection?

Yes, it features over current protection.

What is the output voltage accuracy?

The output voltage accuracy is ±2%.

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