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Diodes Incorporated AP2213H-2.5TRG1
- Part No.:
- AP2213H-2.5TRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
AP2213H-2.5TRG1.pdf
- Description:
- IC REG LINEAR 2.5V 500MA SOT223
- Quantity:
- Payment:
- Shipping:
Inventory:1,755
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Product details
Overview
AP2213H-2.5TRG1 from Diodes Incorporated is a fixed 2.5V, 500mA low-noise LDO regulator in SOT-223 package with 350mV dropout at full load, 1µA shutdown current, and 75dB PSRR at 100Hz-designed for RF power supply rails and battery-powered portable electronics requiring stable, clean voltage.
For engineers reviewing the AP2213H-2.5TRG1 datasheet, AP2213H-2.5TRG1 pinout, AP2213H-2.5TRG1 application, or AP2213H-2.5TRG1 equivalent, key selection criteria include dropout performance under 500mA load, enable logic compatibility (2.0V VIH), thermal resistance (31°C/W θJC), reverse current protection, and BYP-capacitor–dependent noise reduction (260nV/√Hz).
Technical Context
The AP2213H-2.5TRG1 integrates a bandgap reference, error amplifier, and PMOS pass transistor with internal current limiting and thermal shutdown. Its BYP pin connects to an internal reference node, enabling noise suppression via a 100pF capacitor to GND-reducing output noise to 260nV/√Hz but narrowing ESR stability margin.
Enable control is CMOS/TTL-compatible (VIH ≥ 2.0V, VIL ≤ 0.4V), supporting low-power system sequencing. Protection features include over-current (700–1000mA limit), over-temperature shutdown, and reversed current blocking-critical for multi-rail battery systems where backfeed must be prevented.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±1% accuracy ensures stable core logic or RF biasing without external feedback. |
| Max Output Current | 500mA continuous-supports single-core microcontrollers or RF front-end ICs without derating at +125°C. |
| Dropout Voltage | 350mV at 500mA-enables operation from 3.5V input (VOUT + 1V), ideal for single-cell Li-ion or 3.3V rail stepping down. |
| PSRR | 75dB at 100Hz-rejects switching noise from upstream DC/DC converters feeding sensitive analog/RF stages. |
| Standby Current | 1µA max in shutdown-extends battery life in always-on sensor nodes or standby modes of handheld devices. |
| Output Noise | 260nV/√Hz with 100pF BYP-to-GND-meets low-noise requirements for VCOs, ADC references, and RF synthesizers. |
| Thermal Resistance | θJC = 31°C/W (SOT-223)-supports 1.1W dissipation before junction exceeds 125°C at 50°C ambient, no heatsink required. |
Pinout & Package
SOT-223 package: 3-pin surface-mount, exposed thermal pad (pin 2), RoHS-compliant matte tin plating, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 3) | Input voltage supply | Accepts 3.5V–18V; requires ≥1µF ceramic input capacitor for stability and transient response. |
| GND (Pin 1) | Power ground reference | Common return for VIN, VOUT, EN, and BYP; must connect directly to low-impedance PCB ground plane. |
| VOUT (Pin 2) | Regulated output | Delivers 2.5V ±1% to load; requires ≥2.2µF output capacitor when BYP is used to maintain stability. |
| EN (Pin 4) | Enable control input | Active-high logic interface (2.0V min VIH); enables fast power sequencing and zero-load shutdown. |
| BYP (Pin ?) | Noise bypass terminal | Connects to internal bandgap reference; 100pF to GND reduces output noise by >20dB but constrains capacitor ESR range. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise regulation | 260nV/√Hz output noise with 100pF BYP capacitor-enables direct powering of RF VCOs and precision ADC references. |
| Ultra-low quiescent current | 1µA shutdown current-preserves battery capacity in IoT sensors during deep-sleep cycles lasting weeks. |
| Reverse current protection | Blocks backflow from VOUT to VIN when input is removed-prevents unintended discharge in multi-supply systems. |
| Tight output accuracy | ±1% initial tolerance over temperature-eliminates need for post-production calibration in medical or test equipment. |
| Robust thermal management | Thermal shutdown + 31°C/W θJC-allows full 500mA load at +85°C ambient without external heatsinking. |
Applications
| Wireless Transceiver Power | Portable Medical Sensor |
|---|---|
|
Use Scenario: Powering 2.4GHz BLE transceiver RF section in wearable health monitor. IC Role / Device Role / Timing Role: Low-noise 2.5V supply for VCO and PA bias, rejecting noise from shared 3.3V DC/DC converter. Use Value: 75dB PSRR suppresses 100kHz–1MHz switching artifacts, preventing RF carrier phase noise degradation and link margin loss. |
Use Scenario: Supplying analog front-end (AFE) of ECG acquisition circuit in handheld diagnostic device. IC Role / Device Role / Timing Role: Clean 2.5V reference rail for 16-bit delta-sigma ADC and instrumentation amplifier. Use Value: 260nV/√Hz output noise ensures <1 LSB noise floor contribution, preserving 85dB SNR at 1kSPS sampling. |
| Industrial PLC I/O Module | Smart Home Hub MCU Core |
|
Use Scenario: Regulating 2.5V for isolated analog input channel in DIN-rail mounted PLC module. IC Role / Device Role / Timing Role: Local LDO for signal conditioning op-amps and SAR ADC, decoupled from noisy 24V field bus. Use Value: 350mV dropout allows operation from 3.5V intermediate rail derived from wide-input buck converter, improving efficiency vs. linear pre-regulation. |
Use Scenario: Providing core voltage to ARM Cortex-M4 MCU in battery-backed smart home gateway. IC Role / Device Role / Timing Role: Primary 2.5V supply with logic-controlled enable for dynamic power gating during Wi-Fi sleep states. Use Value: 1µA shutdown current extends coin-cell backup runtime to >6 months while maintaining RTC and wake-up interrupt capability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703T-2502E/MB | 300mV dropout at 250mA, 1.8µA quiescent current, no BYP pin, SOIC-8 only | Lacks noise-bypass capability; unsuitable for RF/analog-sensitive loads requiring sub-300nV/√Hz noise | Select when ultra-low IQ is secondary to noise performance and SOT-223 footprint is not required |
| TLS820B2ELVSE | Automotive-grade AEC-Q100 qualified, 200mV dropout at 200mA, integrated watchdog, PG pin | Designed for automotive body electronics; higher cost, overqualified for consumer portable use | Select only for automotive programs requiring PPAP documentation and -40°C to +150°C operation |
Compared with MCP1703T-2502E/MB and TLS820B2ELVSE, the AP2213H-2.5TRG1 uniquely balances RF-grade noise suppression (via BYP), 500mA capability in SOT-223, and 1µA shutdown-making it optimal for space-constrained, battery-operated RF and precision analog systems where noise and efficiency coexist as primary constraints.
Availability
AP2213H-2.5TRG1 is available at Aetrix Electronics and suitable for wireless transceivers, portable medical sensors, industrial I/O modules, and smart home hubs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for AP2213H-2.5TRG1 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 belongs to Diodes' low-noise LDO family, engineered specifically for noise-sensitive RF, portable, and battery-powered systems where PSRR, dropout, and standby current are critical design parameters.
FAQ
What is the minimum input voltage required for AP2213H-2.5TRG1 to regulate correctly?
The absolute minimum input is 2.85V (2.5V + 350mV dropout), but Diodes recommends ≥3.5V (VOUT + 1V) to maintain 75dB PSRR and avoid degraded ripple rejection. Below 3.5V, PSRR drops sharply-verified across -40°C to +125°C per DS42665 Rev. 3-2, page 4.
Can the BYP pin be left unconnected, and what is the impact on noise performance?
Yes, BYP can be left open, but output noise increases from 260nV/√Hz to ~800nV/√Hz. The datasheet confirms this trade-off on page 11 (Output Noise vs. Frequency plot) and states that omitting BYP improves startup time-useful when rapid turn-on outweighs noise sensitivity.
Does AP2213H-2.5TRG1 require an output capacitor, and what value is mandatory?
Yes-an output capacitor is mandatory for stability. Minimum is 1µF if BYP is unused; 2.2µF minimum if 100pF is placed on BYP (per Application Information, page 13). Ceramic X5R/X7R types are specified; ESR must stay within stable region shown in Figure ESR vs. Output Current (page 12).
How does thermal shutdown behave under sustained 500mA load at +85°C ambient?
With θJA = 108°C/W (SOT-223, no heatsink), power dissipation at 500mA and 3.5V input is (3.5−2.5)V × 0.5A = 0.5W → ΔT = 0.5W × 108°C/W = 54°C → TJ ≈ 139°C, triggering thermal shutdown. Derating to 350mA or adding copper pour is required for continuous operation at +85°C ambient.
AP2213H-2.5TRG1 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):
- 2.5V
- 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-2.5TRG1 FAQ
1.How can I place an order for AP2213H-2.5TRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2213H-2.5TRG1 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-2.5TRG1 reliable?
The price and inventory of AP2213H-2.5TRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2213H-2.5TRG1 is usually 5 days.
3.What payment methods are accepted for AP2213H-2.5TRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2213H-2.5TRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2213H-2.5TRG1?
AP2213H-2.5TRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2213H-2.5TRG1 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-2.5TRG1?
For technical support, including AP2213H-2.5TRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2213H-2.5TRG1 requirements.
6.How does Aetrix verify that AP2213H-2.5TRG1 is sourced from the original manufacturer or authorized distributors?
All AP2213H-2.5TRG1 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-2.5TRG1 meets industry standards.
7.What is the process for return or replacement of AP2213H-2.5TRG1?
All AP2213H-2.5TRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2213H-2.5TRG1, 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-2.5TRG1 part is unused and in its original packaging.
Return procedure for AP2213H-2.5TRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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