My Inquiry
My Account
Diodes Incorporated AP2205-33Y-13
- Part No.:
- AP2205-33Y-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-243AA
- Datasheet:
-
AP2205-33Y-13.pdf
- Description:
- IC REG LINEAR 3.3V 250MA SOT89-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,072
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AP2205-33Y-13 from Diodes Incorporated is a fixed-output 3.3V, 200mA ultra-low dropout (ULDO) linear regulator in SOT89 package, featuring 2.3V–24V input range, 100mV dropout at 100µA, 60dB PSRR at 1kHz, ±2% output accuracy, and integrated thermal/overcurrent/reverse-current protection-designed for USB-powered portable devices requiring stable low-noise 3.3V rail generation.
For engineers reviewing the AP2205-33Y-13 datasheet, AP2205-33Y-13 pinout, AP2205-33Y-13 application, or AP2205-33Y-13 equivalent, this page delivers verified technical context, real-world design meaning of key specs, validated SOT89 pin functions, application-specific implementation insights, and two confirmed alternative parts with functional trade-offs.
Technical Context
The AP2205-33Y-13 implements a high-voltage EPNP-based LDO architecture with internal 1.24V reference, error amplifier, and resistor network preset for 3.3V output. It supports enable-controlled shutdown with 0.01µA standby current and includes reverse-current blocking to prevent backfeed during input loss.
Its thermal shutdown activates at +150°C junction temperature, and overcurrent protection limits output to 200mA under nominal conditions (VIN–VOUT ≥ 1V). The device operates across –40°C to +125°C ambient and maintains ±100ppm/°C output voltage drift.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V ±2% - ensures stable logic-level supply for 3.3V microcontrollers and peripherals without external feedback components. |
| Input Voltage Range | 2.3V to 24V - supports direct connection to single-cell Li-ion (2.7–4.2V), 5V USB, 12V industrial rails, and automotive battery systems (9–16V). |
| Dropout Voltage | 100mV @ 100µA; 320mV @ 100mA - enables regulation down to VIN = 3.62V at full load, critical for battery-end-of-life operation. |
| PSRR | 60dB @ 1kHz - suppresses switching noise from upstream DC-DC converters, reducing need for additional filtering in noise-sensitive analog sections. |
| Quiescent Current | 36µA @ 100µA load; 0.01µA in shutdown - extends battery runtime in always-on monitoring circuits and low-power IoT endpoints. |
| Thermal Protection | Integrated OTP with automatic recovery - prevents permanent damage during sustained overload or poor PCB heatsinking in compact enclosures. |
| Output Accuracy | ±2% over –40°C to +125°C - meets tight tolerance requirements for ADC references and precision sensor biasing without calibration. |
Pinout & Package
SOT89 package: 3-pin thermally enhanced surface-mount outline with exposed pad (connected to GND per datasheet Note 4); footprint compatible with JEDEC TO-243AA standard; 0.062g mass; moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power ground return path and thermal conduction node; must be connected to large copper pour for thermal management. |
| 2 | VIN | Main input supply terminal; accepts up to 24V DC; requires 1.0µF ceramic input capacitor placed within 5mm. |
| 3 | VOUT | Regulated 3.3V output; drives load and supplies 2.2µF ceramic output capacitor; reverse-current blocking prevents discharge into input rail. |
Key Features
| Feature | Design Value |
|---|---|
| Wide input range (2.3–24V) | Eliminates need for pre-regulation stages when interfacing with diverse power sources including automotive batteries and multi-cell packs. |
| Ultra-low quiescent current (36µA) | Enables >1-year battery life in coin-cell–powered sensors operating at 10s-of-µA average current. |
| Low-noise output (30µVRMS) | Supports clean power delivery to RF transceivers and high-resolution ADCs without external LDO post-filtering. |
| Reverse current protection | Prevents VOUT from sourcing current into VIN during brown-out or hot-swap events, protecting upstream power sources and sequencing logic. |
| Enable control with 0.4V/2.0V thresholds | Allows direct interface with 1.8V/3.3V GPIOs for precise power sequencing and system-level sleep/wake coordination. |
Applications
| USB-Powered Portable Instrumentation | Laptop Subsystem Power |
|---|---|
Use Scenario: Handheld multimeter powered via USB-C port with variable input (4.5–5.5V) and 3.3V MCU + analog front-end. IC Role / Device Role / Timing Role: Primary 3.3V LDO supplying MCU core, ADC reference, and op-amp bias rails. Use Value: 60dB PSRR rejects USB switcher noise; ±2% accuracy ensures consistent ADC full-scale calibration across temperature. |
Use Scenario: Always-on embedded controller (EC) in notebook platform requiring independent 3.3V rail during S5/S3 states. IC Role / Device Role / Timing Role: Standby power regulator enabling EC wake-from-suspend functionality with <1µA total system leakage. Use Value: 0.01µA shutdown current minimizes battery drain during weeks-long storage; SOT89 thermal performance sustains 100mA load at +85°C ambient. |
| Industrial Sensor Node | Automotive Body Control Module |
Use Scenario: Wireless temperature sensor node using Li-SOCl₂ primary cell (3.6V nominal, 2.0–3.9V discharge curve) and BLE SoC. IC Role / Device Role / Timing Role: Single-stage regulator converting variable battery voltage to stable 3.3V for radio and sensor interface. Use Value: 100mV dropout allows >95% usable battery capacity; -40°C to +125°C rating covers outdoor deployment extremes. |
Use Scenario: Door module with LIN transceiver, LED drivers, and position sensors powered from 12V vehicle battery (9–16V range). IC Role / Device Role / Timing Role: Local 3.3V supply for microcontroller and CAN/LIN PHY logic, with EN tied to ignition signal. Use Value: 24V absolute max input withstands load-dump transients; integrated thermal shutdown prevents latch-up during connector short-circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-3302E/TO | 300mA rated, 1.6µA IQ, but only 6V max input; no reverse-current protection. | Better for ultra-low-power sub-6V systems; unsuitable for 12V/24V automotive or industrial inputs. | Select when IQ < 2µA is mandatory and input stays ≤6V; verify external reverse-blocking diode if needed. |
| TLD1130F | 3.3V, 300mA, 40V abs max, AEC-Q100 qualified; higher 250µA IQ; no enable pin. | Designed for automotive body electronics with PPAP support; lacks programmable shutdown for power sequencing. | Choose for AEC-Q100-compliant designs where qualification documentation and 40V transient immunity outweigh IQ penalty. |
Compared with MCP1700-3302E/TO and TLD1130F, the AP2205-33Y-13 uniquely balances wide-input capability (24V), ultra-low IQ (36µA), enable control, and reverse-current blocking-making it optimal for portable and industrial 3.3V systems needing both flexibility and efficiency.
Availability
AP2205-33Y-13 is available at Aetrix Electronics and suitable for USB-powered instrumentation, industrial sensor nodes, laptop subsystems, and automotive body control modules requiring stable component supply with guaranteed long-term continuity.
Supply support for AP2205-33Y-13 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 company specializing in discrete, analog, and mixed-signal ICs, with manufacturing certified to IATF 16949 and quality systems compliant with AEC-Q standards.
The AP2205 series belongs to Diodes' high-voltage LDO product line, engineered specifically for battery-powered and wide-input industrial applications demanding low noise, high PSRR, and robust protection features.
FAQ
What is the minimum input voltage required for regulation at 3.3V output?
The AP2205-33Y-13 requires VIN ≥ 3.4V to maintain regulation at full 200mA load, based on its 320mV dropout specification at that current. At light loads (100µA), regulation is sustained down to VIN = 3.4V due to 100mV dropout. Input below 2.3V is outside recommended operating conditions and may cause undefined behavior.
Can the AP2205-33Y-13 be used with ceramic output capacitors?
Yes-the AP2205-33Y-13 is explicitly designed for compatibility with low-ESR ceramic capacitors. The datasheet specifies 2.2µF X5R/X7R ceramic at the output, and stability is guaranteed without requiring series resistance or tantalum alternatives. This reduces board area and improves reliability versus electrolytic solutions.
Does the SOT89 package require thermal pad connection to PCB ground?
Yes-the SOT89 substrate/exposed pad (Pin 1) must be connected to GND per Note 4 in the datasheet. This connection serves dual purposes: providing the primary thermal conduction path to the PCB and completing the internal ground reference for the regulator's error amplifier. Omitting this connection degrades thermal performance by ~40°C/W and risks instability.
How does the enable pin behave during power-up sequencing?
The EN pin has CMOS-compatible thresholds: logic HIGH ≥2.0V enables regulation; logic LOW ≤0.4V forces shutdown with 0.01µA standby current. During slow-rising VIN, the EN pin remains inactive until VIN exceeds ~2.3V, preventing premature turn-on. No external pull-up is required unless driven by open-drain logic.
AP2205-33Y-13 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):
- 24V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 150mA
- Current - Output:
- 250mA
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- 60dB (100Hz ~ 1kHz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89-3
AP2205-33Y-13 FAQ
1.How can I place an order for AP2205-33Y-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2205-33Y-13 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 AP2205-33Y-13 reliable?
The price and inventory of AP2205-33Y-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2205-33Y-13 is usually 5 days.
3.What payment methods are accepted for AP2205-33Y-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2205-33Y-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2205-33Y-13?
AP2205-33Y-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2205-33Y-13 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 AP2205-33Y-13?
For technical support, including AP2205-33Y-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2205-33Y-13 requirements.
6.How does Aetrix verify that AP2205-33Y-13 is sourced from the original manufacturer or authorized distributors?
All AP2205-33Y-13 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 AP2205-33Y-13 meets industry standards.
7.What is the process for return or replacement of AP2205-33Y-13?
All AP2205-33Y-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP2205-33Y-13, 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 AP2205-33Y-13 part is unused and in its original packaging.
Return procedure for AP2205-33Y-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP2205-33Y-13 Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
