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Diodes Incorporated AP2202K-2.8TRE1
- Part No.:
- AP2202K-2.8TRE1
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP2202K-2.8TRE1.pdf
- Description:
- IC REG LINEAR 2.8V 150MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,500
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Product details
Overview
AP2202K-2.8TRE1 from Diodes Incorporated is a fixed-output 2.8V, 150mA ultra-low dropout (ULDO) linear regulator in SOT-23-5 package, delivering 165mV dropout at full load, ±1% output accuracy, and 75dB PSRR at 100Hz - designed for noise-sensitive RF power rails in battery-powered handheld devices.
For engineers reviewing the AP2202K-2.8TRE1 datasheet, AP2202K-2.8TRE1 pinout, AP2202K-2.8TRE1 application, or AP2202K-2.8TRE1 equivalent, key selection criteria include low-noise operation (260nV/√Hz), sub-1µA shutdown current, reverse-current protection, logic-compatible enable control, and thermal/overcurrent safety features.
Technical Context
The AP2202K-2.8TRE1 integrates a bandgap reference, error amplifier, and PMOS pass transistor to achieve ultra-low dropout and high PSRR. Its internal architecture enables stable regulation with only 100pF bypass capacitor on the BYP pin, minimizing external component count.
It operates across -40°C to +125°C junction temperature, supports input voltages from 3.3V (VOUT + 0.5V) to 13.2V, and includes integrated thermal shutdown, overcurrent limiting (320–550mA), and reverse-current blocking - eliminating need for external diodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8V ±1% - ensures precise biasing for RF ICs and low-voltage microcontrollers without external feedback. |
| Max Output Current | 150mA - sufficient for powering baseband processors, RF front-end ICs, or sensor subsystems in compact portable designs. |
| Dropout Voltage | 165mV at 150mA - enables operation from single-cell Li-ion (3.0V min) while maintaining regulation under load transients. |
| PSRR | 75dB at 100Hz - suppresses switching noise from adjacent DC-DC converters, critical for RF receiver sensitivity. |
| Standby Current | 1µA max in shutdown - extends battery life in always-on wireless modules and sleep-mode peripherals. |
| Output Noise | 260nV/√Hz - minimizes phase noise in VCOs and jitter in clocked analog circuits powered from this rail. |
| Enable Logic Threshold | VIL ≤ 0.4V / VIH ≥ 2.0V - compatible with 1.8V/3.3V GPIOs without level-shifting, simplifying host MCU interface. |
Pinout & Package
SOT-23-5 surface-mount package (2.9mm × 1.6mm × 1.1mm), thermally enhanced with exposed pad connected to GND; RoHS-compliant, halogen-free "Green" molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Input supply connection | Accepts 3.3V–13.2V input; requires 1.0µF ceramic input capacitor for stability and transient response. |
| 2 (GND) | Ground reference and thermal path | Common return for all currents; exposed pad (Pin 2) must be soldered to PCB ground plane for thermal performance. |
| 3 (EN) | Logic-controlled enable input | CMOS/TTL-compatible; pull high ≥2.0V to activate regulator, pull low ≤0.4V to enter 1µA shutdown mode. |
| 4 (BYP) | Bypass capacitor terminal | Connects 100pF capacitor to GND to reduce internal reference noise and improve PSRR above 10kHz. |
| 5 (VOUT) | Regulated output | Delivers stable 2.8V ±1%; requires 2.2µF ceramic output capacitor for loop stability and load transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 165mV at 150mA enables use with depleting batteries and tight input-output margins. |
| Reverse current protection | Blocks backflow from VOUT to VIN during shutdown or input collapse - eliminates need for external blocking diode. |
| Thermal & overcurrent protection | Auto-recovering shutdown at >150°C junction temp and >320mA short-circuit current - ensures robustness in unattended operation. |
| Low-noise design | 260nV/√Hz output noise and 75dB PSRR preserve signal integrity in RF and precision analog stages. |
| Logic-compatible enable | Direct interfacing with 1.8V/3.3V microcontrollers reduces BOM and layout complexity. |
Applications
| Cellular Handset Power Rail | Wireless Audio Transceiver |
|---|---|
|
Use Scenario: Powers RF transceiver IC and baseband processor core voltage in dual-SIM smartphones with aggressive power cycling. IC Role / Device Role / Timing Role: Primary low-noise LDO supplying 2.8V to RF front-end and PLL circuitry. Use Value: 75dB PSRR prevents switching noise from PMIC buck converters from degrading receiver sensitivity (NF) and EVM. |
Use Scenario: Supplies clean 2.8V bias to Bluetooth 5.0 SoC and MEMS microphone preamp in true wireless stereo earbuds. IC Role / Device Role / Timing Role: Low-quiescent LDO enabling <1µA system deep-sleep current while retaining fast wake-up capability. Use Value: 1µA shutdown current extends battery runtime beyond 200 hours in standby; 165mV dropout preserves headroom from 3.0V battery. |
| Digital Still Camera Sensor Bias | Industrial IoT Edge Node |
|
Use Scenario: Provides regulated 2.8V to CMOS image sensor analog front-end and ADC reference in compact action cameras. IC Role / Device Role / Timing Role: Precision voltage source for sensor analog chain requiring minimal ripple and drift. Use Value: ±1% accuracy and 120µV/°C tempco ensure consistent color fidelity and exposure linearity across -20°C to +70°C operating range. |
Use Scenario: Powers LoRaWAN transceiver and ultra-low-power MCU in battery-operated smart meter endpoint. IC Role / Device Role / Timing Role: System-level LDO managing power sequencing and fault isolation for long-life deployments. Use Value: Integrated reverse-current protection prevents battery drain when main supply fails; thermal shutdown avoids field failures in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ULDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-2802E/TO | 3.3V max input, 250mV dropout at 250mA, no BYP pin, 120nV/√Hz noise | Limited to lower-input systems; lacks reverse-current protection and PSRR optimization above 1kHz | Prefer for cost-sensitive, low-power MCU-only rails where input voltage never exceeds 3.3V. |
| Torex XC6206P282MR-G | 100mA max output, 200mV dropout, no enable pin, 45dB PSRR at 100Hz | Unsuitable for dynamic RF loads; no logic control or thermal protection | Only for static, low-current analog sensors where enable sequencing and fault tolerance are unnecessary. |
Compared with MCP1700-2802E/TO and XC6206P282MR-G, the AP2202K-2.8TRE1 uniquely combines 150mA drive, 75dB PSRR, reverse-current blocking, and 1µA shutdown - making it the sole choice for battery-fed RF subsystems demanding simultaneous low noise, low dropout, and robust protection.
Availability
AP2202K-2.8TRE1 is available at Aetrix Electronics and suitable for cellular handset power management, wireless audio transceivers, digital camera sensor biasing, and industrial IoT edge nodes requiring stable component supply across extended temperature and lifecycle requirements.
Supply support for AP2202K-2.8TRE1 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 AP2202 series belongs to Diodes' high-performance ULDO regulator product line, engineered specifically for noise-critical, battery-constrained RF and portable electronics where dropout, PSRR, and quiescent current are decisive parameters.
FAQ
What is the minimum input voltage required for AP2202K-2.8TRE1 to maintain regulation?
The minimum input voltage is VOUT + 0.165V = 2.965V at 150mA load and +25°C, but Diodes recommends VOUT + 0.5V = 3.3V for reliable operation across temperature and line/load variations. Input below 3.3V risks dropout-induced output sag during transients or elevated temperature.
Does AP2202K-2.8TRE1 require an external bypass capacitor, and what value is specified?
Yes - a 100pF ceramic capacitor must be placed between the BYP pin and GND. This capacitor stabilizes the internal bandgap reference, directly improving PSRR above 10kHz and reducing output noise by filtering reference voltage fluctuations.
How does the reverse-current protection function, and is it active in shutdown mode?
Reverse-current protection blocks conduction from VOUT to VIN whenever VIN falls below VOUT, using an internal PMOS structure that remains active in both normal operation and shutdown mode. This prevents battery discharge through the LDO when input is disconnected or collapses.
Can AP2202K-2.8TRE1 be used with ceramic output capacitors, and what is the minimum recommended value?
Yes - it is fully stable with ceramic output capacitors. Diodes specifies a minimum of 2.2µF X5R/X7R ceramic at the VOUT pin; lower values risk instability under load transients, while higher values improve transient response but increase start-up time and inrush current.
AP2202K-2.8TRE1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 13.2V
- Voltage - Output (Min/Fixed):
- 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.35V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 150 µA
- Current - Supply (Max):
- 2.5 mA
- PSRR:
- 75dB (100Hz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
AP2202K-2.8TRE1 FAQ
1.How can I place an order for AP2202K-2.8TRE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2202K-2.8TRE1 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 AP2202K-2.8TRE1 reliable?
The price and inventory of AP2202K-2.8TRE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2202K-2.8TRE1 is usually 5 days.
3.What payment methods are accepted for AP2202K-2.8TRE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2202K-2.8TRE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2202K-2.8TRE1?
AP2202K-2.8TRE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2202K-2.8TRE1 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 AP2202K-2.8TRE1?
For technical support, including AP2202K-2.8TRE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2202K-2.8TRE1 requirements.
6.How does Aetrix verify that AP2202K-2.8TRE1 is sourced from the original manufacturer or authorized distributors?
All AP2202K-2.8TRE1 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 AP2202K-2.8TRE1 meets industry standards.
7.What is the process for return or replacement of AP2202K-2.8TRE1?
All AP2202K-2.8TRE1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2202K-2.8TRE1, 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 AP2202K-2.8TRE1 part is unused and in its original packaging.
Return procedure for AP2202K-2.8TRE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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