My Inquiry
My Account
Diodes Incorporated AP2205-W5-7
- Part No.:
- AP2205-W5-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP2205-W5-7.pdf
- Description:
- IC REG LIN POS ADJ 250MA SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:11,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AP2205-W5-7 from Diodes Incorporated is a wide-input, ultra-low dropout (ULDO) linear regulator IC in SOT25 package, delivering 200mA output current with 1.5V fixed output voltage, 2.3V–24V input range, 100mV dropout at 100µA, and ±2% output accuracy-designed for USB-powered portable devices requiring stable low-noise power under variable battery conditions.
For engineers reviewing the AP2205-W5-7 datasheet, AP2205-W5-7 pinout, AP2205-W5-7 application, or AP2205-W5-7 equivalent, key selection criteria include its ultra-low quiescent current (36µA at 100µA load), 60dB PSRR at 1kHz, thermal shutdown, reverse current protection, and compatibility with low-ESR ceramic capacitors-critical for battery life extension and noise-sensitive analog subsystems.
Technical Context
The AP2205-W5-7 integrates a precision 1.24V bandgap reference, error amplifier, resistor network for fixed 1.5V output, current-limit circuit, enable-controlled low-power shutdown mode, and overtemperature protection. Its EPNP high-voltage process enables operation down to 2.3V input while maintaining regulation up to 24V.
It features active reverse current blocking, line/load regulation better than 0.05%/0.5%, and output voltage temperature coefficient of ±100ppm/°C. Startup time is adjustable via external RC on EN pin, supporting controlled power sequencing in multi-rail systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±2% - ensures stable core logic or low-voltage sensor bias without external feedback components. |
| Input Voltage Range | 2.3V to 24V - supports single-cell Li-ion (2.7–4.2V), multi-cell alkaline/NiMH, and industrial 12–24V rails. |
| Max Output Current | 200mA @ VOUT > 1.8V; 150mA @ VOUT ≤ 1.8V - sufficient for microcontrollers, RF modules, and low-power displays. |
| Dropout Voltage | 100mV @ IOUT = 100µA; 320mV @ IOUT = 100mA - enables regulation even as battery discharges below 1.6V. |
| PSRR | 60dB @ 1kHz - suppresses switching noise from upstream DC-DC converters feeding the LDO input. |
| Quiescent Current | 36µA @ IOUT = 100µA - extends battery runtime in always-on monitoring or sleep-mode applications. |
| Thermal Shutdown | Activates at TJ ≥ +150°C - protects device during sustained overload or poor PCB thermal design. |
Pinout & Package
SOT25 (SC-74A) package: 5-pin surface-mount, 1.6mm × 2.9mm footprint, 0.95mm height, lead-free matte tin plating, moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VIN | Input supply connection | Accepts 2.3–24V; requires 1.0µF ceramic input capacitor for stability and transient response. |
| 2 - GND | Power ground reference | Common return path for internal circuits and output load; must be low-impedance PCB plane. |
| 3 - EN | Enable control input | Active-high logic: ≥2.0V enables regulator; ≤0.4V disables output and reduces IQ to 0.01µA. |
| 4 - ADJ/NC | Adjust pin / Not connected | No connection required for fixed-output version; left floating or grounded per layout best practice. |
| 5 - VOUT | Regulated output terminal | Delivers 1.5V ±2%; requires 2.2µF ceramic output capacitor for loop stability and ripple suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Wide input voltage range | 2.3V–24V enables single-LDO support across diverse battery chemistries and industrial supplies. |
| Ultra-low quiescent current | 36µA at light load preserves battery capacity in long-duration IoT sensor nodes. |
| Reverse current protection | Blocks backflow from VOUT to VIN when input is removed-prevents system-level power corruption. |
| Low-noise output | 30µVRMS (10Hz–100kHz) avoids interference in ADC references, audio codecs, and RF receivers. |
| Thermal & overcurrent protection | Integrated OTP and current limit prevent damage during short-circuit or PCB thermal overload. |
Applications
| Wearable Health Monitor | Industrial Sensor Node |
|---|---|
|
Use Scenario: Continuous ECG signal acquisition powered by coin-cell or rechargeable Li-ion battery. IC Role / Device Role / Timing Role: Provides clean, low-noise 1.5V bias to analog front-end and ultra-low-power MCU core. Use Value: 36µA quiescent current extends battery life beyond 12 months; 30µVRMS noise prevents baseline drift in sub-µV biopotential measurements. |
Use Scenario: Wireless temperature/humidity node operating in factory automation with 12–24V field bus supply. IC Role / Device Role / Timing Role: Regulates 1.5V for low-power wireless SoC and precision analog sensors from unregulated industrial rail. Use Value: 24V max input eliminates need for pre-regulator; 60dB PSRR rejects PWM noise from nearby motor drives. |
| USB-C Peripheral | Automotive Cabin Controller |
|
Use Scenario: Bus-powered USB audio adapter with DAC and headphone amplifier. IC Role / Device Role / Timing Role: Supplies regulated 1.5V to digital audio interface logic and clock buffers. Use Value: 100mV dropout at light load maintains regulation during USB voltage sag (down to 4.4V); reverse current blocking isolates VBUS from internal 1.5V domain. |
Use Scenario: Dashboard display module powered from vehicle battery (9–16V nominal, up to 24V load dump). IC Role / Device Role / Timing Role: Generates 1.5V for touch controller ASIC and memory interface in infotainment subsystem. Use Value: Thermal shutdown prevents latch-up during high-ambient cabin temperatures; ±2% accuracy ensures reliable I²C timing margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low dropout regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703T-1502E/MB | 1.5V fixed, 250mA, 600mV dropout @ 250mA, 3µA IQ - higher dropout, lower IQ, SOT89 only. | Lacks reverse current protection and EN pin; unsuitable for bidirectional power domains. | Prefer when lowest possible standby current outweighs dropout and protection requirements. |
| Torex XC6219B152MR-G | 1.5V fixed, 300mA, 160mV dropout @ 100mA, 1µA IQ - lower dropout than MCP1703 but no EN or thermal shutdown. | No enable control or overtemperature protection; limited to simple always-on loads. | Choose for cost-sensitive, space-constrained designs where full protection features are not required. |
Compared with MCP1703T-1502E/MB and XC6219B152MR-G, the AP2205-W5-7 uniquely combines ultra-low IQ, integrated EN, reverse current blocking, and thermal shutdown in a compact SOT25 package-making it optimal for battery-critical, safety-aware, and noise-sensitive embedded systems.
Availability
AP2205-W5-7 is available at Aetrix Electronics and suitable for wearable health monitors, industrial sensor nodes, USB-C peripherals, and automotive cabin controllers requiring stable component supply with guaranteed long-term manufacturability.
Supply support for AP2205-W5-7 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 solutions, with manufacturing certified to IATF 16949 and product qualification per AEC-Q100/101 standards.
The AP2205 belongs to Diodes' high-voltage ULDO regulator product line, engineered for energy-efficient power management in battery-powered and industrial equipment where input voltage variability and low-noise regulation are critical.
FAQ
What is the minimum input voltage required for AP2205-W5-7 to regulate 1.5V output?
The AP2205-W5-7 requires VIN ≥ 2.3V to operate, but stable regulation at 1.5V output demands VIN ≥ VOUT + VDROP. At 100µA load, dropout is 100mV, so minimum functional VIN is 1.6V - however, datasheet specifies 2.3V absolute minimum due to internal circuitry headroom and guaranteed performance across temperature.
Can AP2205-W5-7 be used with ceramic output capacitors smaller than 2.2µF?
Yes, but stability and transient response degrade. The datasheet specifies 2.2µF ceramic (X5R/X7R) as minimum for guaranteed phase margin and PSRR performance. Using 1.0µF may cause ringing under load steps and reduce PSRR by up to 15dB at 100kHz; 2.2µF ensures robust loop compensation per design validation.
Does AP2205-W5-7 support adjustable output voltage configurations?
No - AP2205-W5-7 is the fixed 1.5V version. Adjustable variants use part numbers like AP2205-ADJW5-7 with ADJ pin exposed. This variant has ADJ/NC pin internally tied to feedback network; connecting external resistors will not alter output voltage and may impair regulation.
How does the EN pin behave during power-up and brown-out conditions?
The EN pin has hysteresis: rising threshold is ≥2.0V, falling threshold is ≤0.4V. During slow VIN ramp-up, regulator enables only after EN reaches 2.0V; during brown-out, it remains enabled until EN drops below 0.4V - preventing chatter near threshold and ensuring clean power sequencing without external debouncing.
AP2205-W5-7 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:
- Adjustable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 24V
- Voltage - Output (Min/Fixed):
- 1.24V
- Voltage - Output (Max):
- 22V
- 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-W5-7 FAQ
1.How can I place an order for AP2205-W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2205-W5-7 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-W5-7 reliable?
The price and inventory of AP2205-W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2205-W5-7 is usually 5 days.
3.What payment methods are accepted for AP2205-W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2205-W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2205-W5-7?
AP2205-W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2205-W5-7 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-W5-7?
For technical support, including AP2205-W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2205-W5-7 requirements.
6.How does Aetrix verify that AP2205-W5-7 is sourced from the original manufacturer or authorized distributors?
All AP2205-W5-7 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-W5-7 meets industry standards.
7.What is the process for return or replacement of AP2205-W5-7?
All AP2205-W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP2205-W5-7, 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-W5-7 part is unused and in its original packaging.
Return procedure for AP2205-W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP2205-W5-7 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…
