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Diodes Incorporated AP2213H-3.3TRG1
- Part No.:
- AP2213H-3.3TRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
AP2213H-3.3TRG1.pdf
- Description:
- IC REG LINEAR 3.3V 500MA SOT223
- Quantity:
- Payment:
- Shipping:
Inventory:3,944
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Product details
Overview
AP2213H-3.3TRG1 from Diodes Incorporated is a fixed 3.3V, 500mA low-noise LDO regulator in SOT-223 package, featuring 350mV dropout at full load, ±1% output accuracy, and 75dB PSRR at 100Hz. It delivers stable power to noise-sensitive RF circuitry and portable electronics with logic-compatible enable control and reversed current protection.
For engineers reviewing the AP2213H-3.3TRG1 datasheet, AP2213H-3.3TRG1 pinout, AP2213H-3.3TRG1 application, or AP2213H-3.3TRG1 equivalent, key selection criteria include dropout voltage under 500mA load, standby current ≤1µA, thermal shutdown behavior, BYP capacitor interface for noise reduction, and compatibility with 100pF bypass networks.
Technical Context
The AP2213H-3.3TRG1 integrates a bandgap reference, current-limit circuitry, and thermal shutdown into a single-pass transistor architecture. Its BYP terminal connects directly to the internal reference node, enabling external 100pF capacitors to suppress reference noise and reduce output noise to 260nV/√Hz.
Enable logic operates at TTL/CMOS levels (VIH ≥ 2.0V, VIL ≤ 0.4V), supporting low-power shutdown with ISTD ≤ 1µA. Protection features include over-current limiting (700–1000mA), reverse-current blocking, and junction temperature monitoring with automatic thermal foldback above +150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V ±1% over -40°C to +125°C - ensures stable MCU core or RF IC bias without external feedback. |
| Max Output Current | 500mA continuous - supports single-rail digital subsystems including ARM Cortex-M microcontrollers and baseband processors. |
| Dropout Voltage | 350mV at 500mA - enables operation from 3.65V input, critical for single-cell Li-ion or 4.2V battery systems. |
| PSRR | 75dB at 100Hz - suppresses switching regulator ripple in mixed-signal designs where clean analog supply is mandatory. |
| Standby Current | ≤1µA in shutdown - extends battery life in always-on sensor nodes and wearable devices during deep sleep modes. |
| Output Noise | 260nV/√Hz (IOUT = 50mA, COUT = 2.2µF, CBYP = 100pF) - meets low-noise requirements for RF front-end LNA and ADC reference supplies. |
| Thermal Resistance θJA | 108°C/W (SOT-223) - defines maximum power dissipation limit (e.g., 0.93W at TA = +50°C before thermal shutdown). |
Pinout & Package
SOT-223 package: 4-pin thermally enhanced surface-mount device with exposed thermal pad (pin 2 = GND). Pin 1 = VIN, pin 2 = GND, pin 3 = VOUT, pin 4 = EN. BYP terminal is not externally accessible in SOT-223 variant per datasheet pin mapping.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Input supply connection | Accepts 4.3V to 18V DC; must be decoupled with ≥1µF ceramic capacitor to GND for stability. |
| GND (Pin 2) | Power and signal reference | Primary ground return path for load current and quiescent current; ties to thermal pad for heat dissipation. |
| VOUT (Pin 3) | Regulated output | Delivers 3.3V ±1% to load; requires ≥2.2µF output capacitor when BYP is used (not applicable in SOT-223). |
| EN (Pin 4) | Enable control input | Active-high logic interface (VIH ≥ 2.0V); pulls regulator into <1µA shutdown state when driven ≤0.4V. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise regulation | 260nV/√Hz output noise with 100pF BYP-to-GND - enables direct powering of RF receivers without additional filtering. |
| Ultra-low dropout | 350mV at 500mA - allows use with aging batteries or post-buck converter rails where headroom is constrained. |
| Reversed current protection | Blocks reverse current flow from VOUT to VIN - prevents battery drain in multi-rail systems during power-down sequences. |
| Logic-compatible enable | CMOS/TTL-level EN input with <20µA high-state current - interfaces directly with FPGA I/O or microcontroller GPIO without level-shifting. |
| Integrated protections | Current limit (700–1000mA), thermal shutdown (+150°C), and over-temperature hysteresis - eliminates need for external fault management circuitry. |
Applications
| RF Front-End Power | Portable MCU Core Supply |
|---|---|
|
Use Scenario: Powering low-noise amplifier (LNA) and mixer stages in Bluetooth/Wi-Fi modules. IC Role / Device Role / Timing Role: Provides ultra-low-noise 3.3V bias rail isolated from noisy digital switching supplies. Use Value: 75dB PSRR and 260nV/√Hz noise ensure receiver sensitivity remains unaffected by baseband processor activity. |
Use Scenario: Supplying core voltage to ARM Cortex-M4 microcontrollers in handheld medical devices. IC Role / Device Role / Timing Role: Delivers tightly regulated 3.3V with ±1% accuracy across temperature and load variations. Use Value: Enables reliable operation down to 3.65V input, extending runtime on single-cell Li-ion batteries. |
| Battery-Powered Sensor Node | Industrial HMI Display Backlight |
|
Use Scenario: Powering ultra-low-power environmental sensors (e.g., temperature/humidity) with periodic wake-up cycles. IC Role / Device Role / Timing Role: Supplies regulated 3.3V while drawing ≤1µA in shutdown between measurements. Use Value: Extends 10-year battery life in sealed IoT deployments by minimizing quiescent drain during sleep. |
Use Scenario: Driving LED backlight drivers in factory-floor HMIs requiring stable brightness control. IC Role / Device Role / Timing Role: Acts as precision voltage source for current-mode LED driver reference inputs. Use Value: Tight line/load regulation (≤9mV) prevents visible flicker or brightness drift under varying 12V bus conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703T-3302E/MB | 350mV dropout at 250mA only; 250mA max output; no BYP pin for noise optimization. | Limited to lower-current peripherals; unsuitable for 500mA RF power stages. | Select when cost sensitivity outweighs noise performance and full-load capability. |
| TLS850F3BTV50 | Automotive-grade AEC-Q100 qualified; 500mA output; 400mV dropout at 500mA; integrated watchdog. | Designed for automotive infotainment; higher minimum input voltage (4.5V) limits battery use. | Choose for automotive environments requiring PPAP documentation and extended temperature validation. |
Compared with MCP1703T-3302E/MB and TLS850F3BTV50, the AP2213H-3.3TRG1 uniquely balances 500mA capability, 350mV dropout, and 260nV/√Hz noise in a commercial-grade SOT-223 package-making it optimal for portable RF and industrial edge devices where noise, efficiency, and size intersect.
Availability
AP2213H-3.3TRG1 is available at Aetrix Electronics and suitable for RF front-end power, portable MCU core supply, and battery-powered sensor node applications requiring stable component supply, RoHS-compliant packaging, and traceable lot-level sourcing.
Supply support for AP2213H-3.3TRG1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Diodes Incorporated is a global semiconductor manufacturer specializing in discrete, analog, and mixed-signal solutions for power management, signal integrity, and connectivity applications.
The AP2213 series belongs to Diodes' low-noise LDO portfolio, engineered specifically for battery-powered and RF-sensitive systems where dropout voltage, PSRR, and standby current directly impact system runtime and signal fidelity.
FAQ
What is the minimum input voltage required for AP2213H-3.3TRG1 to maintain regulation?
The minimum input voltage is 3.65V (3.3V + 350mV dropout) at 500mA load and +25°C. Datasheet recommends VIN ≥ 4.3V (VOUT + 1V) for guaranteed PSRR performance and margin against temperature-induced dropout increase. Below 4.3V, output may remain stable but PSRR degrades significantly.
Can the BYP pin be used in the SOT-223 package of AP2213H-3.3TRG1?
No. The BYP terminal is not brought out to a dedicated pin in the SOT-223 variant (only present in SOIC-8 and TO-252-2 packages). Therefore, noise reduction via external 100pF bypass is not supported in this package; output noise remains at 260nV/√Hz without BYP enhancement.
Does AP2213H-3.3TRG1 require an output capacitor, and what value is recommended?
Yes, an output capacitor is mandatory for stability. With no BYP capacitor, ≥1µF is required. When using the BYP function (not available in SOT-223), ≥2.2µF is recommended. Ceramic X5R/X7R types are preferred; ESR must stay within stable region per datasheet curves (e.g., <1Ω at 500mA for 2.2µF).
How does thermal shutdown behave during sustained overload conditions?
Thermal shutdown activates at TJ ≥ +150°C and includes hysteresis: the device resumes regulation only after junction temperature falls to approximately +135°C. During shutdown, EN remains functional-asserting EN low forces immediate shutdown regardless of thermal state, reducing recovery time.
AP2213H-3.3TRG1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 18V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.7V @ 500mA
- Current - Output:
- 500mA
- Current - Quiescent (Iq):
- 180 µA
- Current - Supply (Max):
- 28 mA
- PSRR:
- 75dB (100Hz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223-3
AP2213H-3.3TRG1 FAQ
1.How can I place an order for AP2213H-3.3TRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2213H-3.3TRG1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AP2213H-3.3TRG1 reliable?
The price and inventory of AP2213H-3.3TRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2213H-3.3TRG1 is usually 5 days.
3.What payment methods are accepted for AP2213H-3.3TRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2213H-3.3TRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2213H-3.3TRG1?
AP2213H-3.3TRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2213H-3.3TRG1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AP2213H-3.3TRG1?
For technical support, including AP2213H-3.3TRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2213H-3.3TRG1 requirements.
6.How does Aetrix verify that AP2213H-3.3TRG1 is sourced from the original manufacturer or authorized distributors?
All AP2213H-3.3TRG1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AP2213H-3.3TRG1 meets industry standards.
7.What is the process for return or replacement of AP2213H-3.3TRG1?
All AP2213H-3.3TRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2213H-3.3TRG1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AP2213H-3.3TRG1 part is unused and in its original packaging.
Return procedure for AP2213H-3.3TRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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