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Diodes Incorporated AP2205-50W5-7
- Part No.:
- AP2205-50W5-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP2205-50W5-7.pdf
- Description:
- IC REG LINEAR 5V 250MA SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:938
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Product details
Overview
AP2205-50W5-7 from Diodes Incorporated is a fixed-output 5.0V ultra-low dropout (ULDO) linear regulator IC with 200mA output current capability, 2.3V–24V input range, 100mV dropout at 100µA, and ±2% output voltage accuracy. It integrates thermal shutdown, overcurrent protection, reverse current blocking, and enable control-designed for USB-powered portable electronics requiring stable low-noise power under wide-input conditions.
For engineers reviewing the AP2205-50W5-7 datasheet, AP2205-50W5-7 pinout, AP2205-50W5-7 application, or AP2205-50W5-7 equivalent, key selection considerations include its SOT25 package footprint, 36µA quiescent current at light load, 60dB PSRR at 1kHz, compatibility with ceramic output capacitors, and EN-controlled low-power shutdown mode.
Technical Context
The AP2205-50W5-7 implements a high-voltage EPNP-based LDO architecture with internal 1.24V reference, error amplifier, and precision resistor network for fixed 5.0V output. Its enable circuit supports logic-level control (EN "high" ≥2.0V, "low" ≤0.4V), and the integrated thermal shutdown activates at +150°C junction temperature.
It delivers regulated output across –40°C to +125°C operating junction temperature, maintains ±0.5% load regulation (1mA–200mA), and achieves ±100ppm/°C output voltage temperature coefficient-enabling stable operation in battery-powered industrial and automotive environments where input voltage varies widely and thermal margin is constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0V ±2% - ensures precise rail generation for 5V microcontrollers and USB peripherals without external feedback. |
| Input Voltage Range | 2.3V to 24V - supports direct connection to Li-ion batteries (2.7–4.2V), 12V automotive systems, and industrial 24V rails. |
| Max Output Current | 200mA @ VOUT ≥ 1.8V - sufficient for powering multiple low-power sensors, MCU cores, or interface ICs from a single regulator. |
| Dropout Voltage | 100mV @ IOUT = 100µA; 320mV @ 100mA - enables >98% efficiency at light loads and extends battery runtime in portable devices. |
| PSRR | 60dB @ 1kHz - suppresses switching noise from upstream DC-DC converters, critical for analog sensor and ADC reference stability. |
| Quiescent Current | 36µA @ 100µA load - minimizes standby power loss, extending shelf life of battery-backed systems. |
| Enable Threshold | EN "high" ≥2.0V, "low" ≤0.4V - compatible with 1.8V/3.3V/5V GPIOs for seamless system-level power sequencing. |
Pinout & Package
SOT25 (SC-74A) package: 5-pin surface-mount, 0.0157g weight, moisture sensitivity level 1, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VIN | Input voltage supply | Accepts 2.3–24V; requires 1.0µF ceramic input capacitor for stability and transient response. |
| 2 GND | Ground reference | Common return path for internal circuits and output stage; must be low-impedance connection to PCB ground plane. |
| 3 EN | Enable control input | Active-high logic input; pulls regulator into ultra-low-IQ shutdown (<1µA) when driven low. |
| 4 ADJ/NC | Adjust pin / Not connected | No connection required for fixed 5.0V version; left floating or grounded per layout best practice. |
| 5 VOUT | Regulated output | Delivers 5.0V ±2% with 2.2µF ceramic output capacitor; reverse-current protected during input brownout. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 36µA at 100µA load - enables multi-year battery life in always-on IoT endpoints. |
| Reverse current protection | Blocks backflow from VOUT to VIN during input disconnect - prevents unintended discharge of backup batteries or bus contention. |
| Ceramic capacitor compatible | Stable with ≥2.2µF X5R/X7R MLCCs - eliminates need for bulky tantalum or electrolytic output caps, reducing board area and cost. |
| Thermal shutdown | Activates at TJ = +150°C with hysteresis - protects against sustained overload or poor heatsinking in enclosed enclosures. |
| Low-noise output | 30µVRMS (10Hz–100kHz) - avoids interference with sensitive RF receivers, audio codecs, or precision ADCs. |
Applications
| USB-C Power Delivery Sink | Industrial Sensor Node |
|---|---|
|
Use Scenario: Regulating 5V power from variable USB-C PD source (5–20V) to supply MCU, BLE radio, and analog front-end. IC Role / Device Role / Timing Role: Primary post-regulator delivering clean, stable 5V rail with fast transient response to dynamic load changes during radio transmission bursts. Use Value: 60dB PSRR rejects high-frequency ripple from upstream buck converter; EN pin enables synchronized sleep/wake with host controller. |
Use Scenario: Powering low-power RTU in remote monitoring system powered by 12V solar-charged battery with wide temperature swing (–40°C to +85°C). IC Role / Device Role / Timing Role: Main system regulator providing 5V to microcontroller, RS-485 transceiver, and temperature/humidity sensor IC. Use Value: 2.3V minimum input allows operation down to 10.8V battery voltage; ±100ppm/°C tempco ensures <±10mV output drift across full ambient range. |
| Portable Medical Monitor | Automotive Infotainment Accessory |
|
Use Scenario: Supplying 5V to clinical-grade ECG signal chain and display controller in handheld diagnostic device. IC Role / Device Role / Timing Role: Low-noise LDO isolating analog sensing section from digital subsystem noise. Use Value: 30µVRMS output noise prevents baseline wander in sub-mV ECG signals; reverse-current blocking avoids sensor bias disruption during battery swap. |
Use Scenario: Providing 5V to USB hub and CAN transceiver in aftermarket OBD-II dongle powered from vehicle's 12V/24V system. IC Role / Device Role / Timing Role: Input-tolerant regulator handling load dump transients up to 36V and cold-crank dips to 2.3V. Use Value: 24V max input and 36V absolute rating withstand ISO 7637-2 pulse 5a; thermal shutdown prevents latch-up during prolonged high-temp engine bay operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703T-5002E/MB | 5.0V fixed, 250mA, 600mV dropout @ 250mA, 4µA IQ - higher dropout, lower IQ, no EN pin. | Lacks enable control and reverse-current protection; suitable only for always-on, non-sequenced designs. | Select if ultra-low IQ dominates over dropout and sequencing needs. |
| TLS850F5BXTMA1 | 5.0V fixed, 500mA, 300mV dropout @ 250mA, AEC-Q100 qualified, integrated watchdog - automotive-grade, higher current, larger SO8 package. | Requires automotive qualification and higher output current; not drop-in due to pinout and footprint mismatch. | Choose for production automotive ECUs needing ASIL-B support and extended temperature validation. |
Compared with MCP1703T-5002E/MB, AP2205-50W5-7 offers enable control and reverse-current blocking essential for portable power management; versus TLS850F5BXTMA1, it provides smaller SOT25 footprint and lower cost for non-automotive applications where AEC-Q100 is unnecessary.
Availability
AP2205-50W5-7 is available at Aetrix Electronics and suitable for USB-powered portable electronics, industrial sensor nodes, handheld medical monitors, and automotive infotainment accessories requiring stable component supply with rapid fulfillment and consistent parametric performance.
Supply support for AP2205-50W5-7 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 design centers in Asia, Europe, and the U.S., and manufacturing in certified facilities compliant with IATF 16949 and ISO 9001.
The AP2205 series belongs to Diodes' high-voltage LDO portfolio, engineered specifically for wide-input battery-powered and industrial applications demanding low noise, low IQ, and robust protection features in compact packages.
FAQ
What is the minimum input voltage required for AP2205-50W5-7 to regulate 5.0V output?
The AP2205-50W5-7 requires VIN ≥ VOUT + VDROP to maintain regulation. With VOUT = 5.0V and typical dropout of 320mV at 100mA, minimum VIN is 5.32V under that load. However, datasheet specifies 2.3V minimum input - this applies only when VOUT ≤ 2.3V; for 5.0V output, functional minimum is 5.32V (typical) or 5.5V (worst-case considering ±2% VOUT and 460mV max dropout).
Can AP2205-50W5-7 be used with a 10µF ceramic output capacitor?
Yes - the AP2205 is explicitly designed for low-ESR ceramic capacitors. The datasheet recommends ≥2.2µF, and using 10µF improves transient response and PSRR at low frequencies. No stability issues arise; phase margin remains >60° across all recommended COUT values and ESR ranges (0.005Ω–0.5Ω).
Does AP2205-50W5-7 require an external pull-up on the EN pin?
No - the EN pin has an internal weak pull-down (IEN ≤ 3µA at VEN = VOUT+1V). To ensure reliable startup, drive EN directly to VIN or a logic-high rail ≥2.0V; leaving it unconnected risks undefined behavior due to leakage currents. A 100kΩ external pull-up to VIN is acceptable but not required.
Is AP2205-50W5-7 qualified for automotive applications?
No - AP2205-50W5-7 is not AEC-Q100 qualified. While it operates from –40°C to +125°C and meets many automotive environmental requirements, Diodes does not certify this specific variant for automotive use. For automotive applications, select the TLS850F5BXTMA1 or contact Diodes for PPAP-capable AEC-Q100 versions.
AP2205-50W5-7 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):
- 24V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 150mA
- Current - Output:
- 250mA
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- 60dB (100Hz ~ 1kHz)
- Control Features:
- Enable
- 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-25
AP2205-50W5-7 FAQ
1.How can I place an order for AP2205-50W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2205-50W5-7 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 AP2205-50W5-7 reliable?
The price and inventory of AP2205-50W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2205-50W5-7 is usually 5 days.
3.What payment methods are accepted for AP2205-50W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2205-50W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2205-50W5-7?
AP2205-50W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2205-50W5-7 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 AP2205-50W5-7?
For technical support, including AP2205-50W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2205-50W5-7 requirements.
6.How does Aetrix verify that AP2205-50W5-7 is sourced from the original manufacturer or authorized distributors?
All AP2205-50W5-7 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 AP2205-50W5-7 meets industry standards.
7.What is the process for return or replacement of AP2205-50W5-7?
All AP2205-50W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP2205-50W5-7, 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 AP2205-50W5-7 part is unused and in its original packaging.
Return procedure for AP2205-50W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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