Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Regulator Type | Fixed CMOS LDO |
| Output Voltage | 3.3 V |
| Output Current | Up to 600 mA |
| Enable | Active high |
| Output Discharge | Integrated |
| Package | SOT-25, tape and reel |
Product Overview
AP2112K-3.3TRG1 is a fixed 3.3 V member of Diodes Incorporated’s AP2112 CMOS LDO family in a compact five-pin package. It combines up to 600 mA output capability with active-high enable and output discharge, making it suitable for compact 3.3 V rails that need controlled shutdown behavior.
As with any small linear regulator, the headline current rating must be evaluated together with VIN-to-VOUT dissipation and PCB thermal conditions.
Technical Specifications
| Group | Parameter | Value / Condition |
|---|---|---|
| Output | Nominal voltage | 3.3 V |
| Output | Maximum current | 600 mA |
| Control | Enable | Active high |
| Control | Output discharge | Integrated |
| PSRR | At 1 kHz | 65 dB family specification |
| Package | Type | SOT-25 |
| Packing | Format | Tape and reel |
Functional Highlights
Enable plus output discharge simplifies rail control
The regulator can be disabled by logic control and its output node can be discharged when off, which is useful when a downstream domain must power down predictably.
Compact package still requires thermal checking
Sustainable current depends on the input-output voltage drop, board copper and ambient temperature rather than the 600 mA rating alone.
Applications / Application Fit
- 3.3 V rails for embedded controllers and digital logic
- Power domains that require controlled enable and discharge
- Compact portable or consumer electronics
Design Considerations
Confirm the input range and dropout margin at the required 3.3 V output and load current.
Place the input and output capacitors close to the device and follow Diodes stability guidance.
Account for output-discharge behavior when the regulated rail is connected to another powered domain.
Related Engineering Resources
- Diodes Incorporated AP2112 official product page — manufacturer-controlled product information and documentation.
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment. After an order is placed, physical product, label, packaging, and Date Code photos may be provided where appropriate.
Request a Quote
To request a quotation, provide the manufacturer part number, required quantity, destination, target Date Code if applicable, and any testing or inspection requirements.
