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Diodes Incorporated AP2202R-3.3TRE1
- Part No.:
- AP2202R-3.3TRE1
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-243AA
- Datasheet:
-
AP2202R-3.3TRE1.pdf
- Description:
- IC REG LINEAR 3.3V 150MA SOT89
- Quantity:
- Payment:
- Shipping:
Inventory:339
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Product details
Overview
AP2202R-3.3TRE1 from Diodes Incorporated is a fixed-output 3.3V, 150mA ultra-low dropout (ULDO) linear regulator with 165mV dropout at full load, ±1% output accuracy, and 75dB PSRR at 100Hz-designed for noise-sensitive RF power rails in handheld wireless devices.
For engineers reviewing the AP2202R-3.3TRE1 datasheet, AP2202R-3.3TRE1 pinout, AP2202R-3.3TRE1 application, or AP2202R-3.3TRE1 equivalent, key selection criteria include low-noise operation (260nV/√Hz), 1µA shutdown current, logic-compatible enable control, reverse current protection, and SOT-23-5 space-constrained packaging.
Technical Context
The AP2202R-3.3TRE1 integrates a bandgap reference, error amplifier, and PMOS pass transistor to deliver stable 3.3V output with ultra-low dropout and minimal thermal drift. Its internal architecture enables fast transient response and eliminates external compensation components.
It features CMOS/TTL-compatible enable input (VIH ≥ 2.0V, VIL ≤ 0.4V), bypass capacitor terminal for noise filtering, and built-in protections including thermal shutdown, overcurrent limiting (320–550mA), and reverse current blocking-ensuring robust operation in battery-powered systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V ±1% (ensures stable supply for 3.3V logic, RF ICs, and ADC references) |
| Max Output Current | 150mA (supports moderate-power RF front-ends and baseband processors) |
| Dropout Voltage | 165mV at 150mA (enables operation from 3.465V input-critical for single-cell Li-ion or Li-poly systems) |
| PSRR | 75dB at 100Hz (suppresses low-frequency supply ripple from switching converters feeding the LDO) |
| Output Noise | 260nV/√Hz (minimizes phase noise in VCOs and local oscillators) |
| Shutdown Current | 1µA max (extends battery life in standby modes of portable transceivers) |
| Enable Logic Threshold | VIH ≥ 2.0V, VIL ≤ 0.4V (directly interfaces with 1.8V/3.3V GPIO without level-shifting) |
Pinout & Package
SOT-23-5 package: compact 2.9mm × 1.6mm footprint with exposed pad for thermal performance; lead-free, RoHS-compliant, halogen-free "Green" construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VIN | Input voltage supply | Accepts 2.5V–13.2V; minimum 3.465V required for 3.3V output at 150mA |
| 2 - GND | Ground reference | Power and signal return; connects to PCB ground plane for noise control |
| 3 - EN | Enable control input | Active-high logic input; <0.4V disables regulator, ≥2.0V enables-compatible with MCU GPIO |
| 4 - BYP | Bypass capacitor connection | Connects 100pF capacitor to GND to reduce high-frequency output noise and improve PSRR |
| 5 - VOUT | Regulated output | Delivers precise 3.3V ±1%; requires 2.2µF ceramic output capacitor for stability |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 165mV at 150mA-enables >95% efficiency from 3.6V Li-ion sources |
| Low-noise regulation | 260nV/√Hz output noise with 100pF BYP capacitor-preserves RF signal integrity |
| Reverse current protection | Blocks backflow from VOUT to VIN during shutdown or input brownout-prevents system-level leakage |
| Thermal & overcurrent protection | Auto-recovery shutdown at TJ ≥ +150°C and ILIMIT = 320–550mA-ensures fault resilience |
| Logic-compatible enable | CMOS/TTL thresholds (VIH ≥ 2.0V, VIL ≤ 0.4V) allow direct MCU control without external drivers |
Applications
| Cellular Handset Power Rails | Wireless IoT Sensor Nodes |
|---|---|
Use Scenario: Supplying 3.3V to RF transceiver ICs and baseband processors in GSM/UMTS/LTE handsets. IC Role / Device Role / Timing Role: Primary low-noise post-regulator for RF section, decoupling noisy DC-DC converter outputs. Use Value: 75dB PSRR suppresses switching noise from PMIC buck converters, preventing receiver desensitization. |
Use Scenario: Powering BLE/Wi-Fi SoCs and analog sensor front-ends in battery-operated smart sensors. IC Role / Device Role / Timing Role: Always-on LDO for real-time clock and low-power MCU core during sleep mode. Use Value: 1µA shutdown current extends 10-year battery life in sealed environmental monitors. |
| Digital Still Camera Modules | PC Motherboard Standby Rails |
Use Scenario: Providing clean 3.3V to image sensor interface circuitry and ISP cores. IC Role / Device Role / Timing Role: Low-noise bias source for analog pixel readout and ADC reference. Use Value: 260nV/√Hz noise floor prevents fixed-pattern noise and SNR degradation in high-resolution imaging. |
Use Scenario: Generating always-on 3.3V standby rail for USB controller, SMBus, and wake logic on ATX motherboards. IC Role / Device Role / Timing Role: Secondary LDO fed from +5VSB, delivering regulated 3.3V_AUX with reverse current blocking. Use Value: Reverse current protection prevents backfeed into +5VSB when main +3.3V rail is absent-ensuring ACPI compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ULDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-3302E/TO | 3.3V fixed, 250mA, 600mV dropout at 250mA, 1.6µA quiescent current | Higher dropout limits use in sub-3.6V battery systems; lower PSRR (60dB @ 100Hz) | Select when higher output current is needed and input headroom exceeds 0.6V |
| Torex XC6206P332MR-G | 3.3V fixed, 150mA, 250mV dropout at 150mA, 1µA shutdown, no BYP pin | Lacks dedicated bypass pin-limits high-frequency noise suppression capability | Choose for cost-sensitive designs where 260nV/√Hz noise performance is not critical |
Compared with MCP1700-3302E/TO and XC6206P332MR-G, the AP2202R-3.3TRE1 uniquely combines 165mV dropout, 260nV/√Hz noise, and a dedicated BYP pin-making it optimal for RF and precision analog supply domains where both headroom and spectral purity are constrained.
Availability
AP2202R-3.3TRE1 is available at Aetrix Electronics and suitable for cellular handset power rails, wireless IoT sensor nodes, digital still camera modules, and PC motherboard standby rails requiring stable component supply across production lifecycles.
Supply support for AP2202R-3.3TRE1 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 manufacturer of discrete semiconductors and analog ICs, specializing in high-performance power management, signal integrity, and protection solutions.
The AP2202 series belongs to Diodes' ultra-low-noise, low-dropout linear regulator product line-engineered specifically for RF, portable, and battery-critical applications demanding minimal voltage overhead and spectral cleanliness.
FAQ
What is the minimum input voltage required for AP2202R-3.3TRE1 to maintain regulation at 150mA?
The minimum input voltage is 3.465V-calculated as VOUT + VDROP = 3.3V + 0.165V. Below this, output voltage drops by more than 1% at +25°C. For reliable margin across temperature and load, Diodes recommends VIN ≥ VOUT + 0.5V (i.e., ≥3.8V) per the datasheet's operating guidance.
Does AP2202R-3.3TRE1 require an external bypass capacitor, and what value is specified?
Yes-a 100pF capacitor must be placed between the BYP pin and GND. This capacitor reduces high-frequency output noise and improves PSRR above 10kHz. The datasheet specifies 100pF as the optimal value; larger values degrade noise performance due to parasitic resonance effects.
How does the reverse current protection function in AP2202R-3.3TRE1?
The device incorporates an internal MOSFET-based blocking mechanism that prevents current flow from VOUT to VIN when VIN is absent or below VOUT. This eliminates backfeed paths in multi-rail systems-critical for USB-powered peripherals and hot-swap applications where uncontrolled reverse conduction could damage upstream sources.
Can AP2202R-3.3TRE1 be used with ceramic output capacitors, and what is the minimum recommended value?
Yes-it is fully stable with ceramic output capacitors. The datasheet specifies a minimum 2.2µF X5R/X7R ceramic capacitor at VOUT, with ESR ≤ 100mΩ. Using smaller values or high-ESR electrolytics risks instability and overshoot during load transients, particularly in RF supply applications.
AP2202R-3.3TRE1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-243AA
- 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):
- 3.3V
- 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-89-3
AP2202R-3.3TRE1 FAQ
1.How can I place an order for AP2202R-3.3TRE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2202R-3.3TRE1 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 AP2202R-3.3TRE1 reliable?
The price and inventory of AP2202R-3.3TRE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2202R-3.3TRE1 is usually 5 days.
3.What payment methods are accepted for AP2202R-3.3TRE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2202R-3.3TRE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2202R-3.3TRE1?
AP2202R-3.3TRE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2202R-3.3TRE1 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 AP2202R-3.3TRE1?
For technical support, including AP2202R-3.3TRE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2202R-3.3TRE1 requirements.
6.How does Aetrix verify that AP2202R-3.3TRE1 is sourced from the original manufacturer or authorized distributors?
All AP2202R-3.3TRE1 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 AP2202R-3.3TRE1 meets industry standards.
7.What is the process for return or replacement of AP2202R-3.3TRE1?
All AP2202R-3.3TRE1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2202R-3.3TRE1, 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 AP2202R-3.3TRE1 part is unused and in its original packaging.
Return procedure for AP2202R-3.3TRE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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