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Diodes Incorporated AP7315-22W5-7
- Part No.:
- AP7315-22W5-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7315-22W5-7.pdf
- Description:
- IC REG LINEAR 2.2V 150MA SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:2,103
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Product details
Overview
AP7315-22W5-7 from Diodes Incorporated is a 2.2V fixed-output, 150mA low-dropout linear regulator with ±1% output voltage accuracy, 75dB PSRR at 1kHz, 60µVrms output noise (10Hz–100kHz), and 35µA quiescent current. It features enable control, operates from 1.7V to 5.25V input, and is optimized for RF supply rails in portable wireless communication devices.
For engineers reviewing the AP7315-22W5-7 datasheet, AP7315-22W5-7 pinout, AP7315-22W5-7 application, or AP7315-22W5-7 equivalent, this page delivers verified electrical specs, SOT25 package layout guidance, real-world load transient behavior, and validated alternatives for low-noise power management in space-constrained handheld systems.
Technical Context
The AP7315-22W5-7 uses a CMOS-based LDO architecture with integrated voltage reference, error amplifier, and current-limit circuitry. Its non-discharge design avoids output pull-down during shutdown, preserving downstream bias conditions.
It achieves stable regulation under fast load transients (e.g., 1mA ↔ 150mA steps in <100µs) with only 0.47µF ceramic input/output capacitors. The EN pin accepts logic-level control (VIH ≥ 1.3V, VIL ≤ 0.5V) and must not float.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.2V ±1% at +25°C; ensures precise biasing for 2.2V-tolerant RF ICs and sensors |
| Max Output Current | 150mA guaranteed; supports moderate-power RF front-end stages without thermal derating |
| PSRR | 75dB at 1kHz; suppresses switching noise from adjacent DC/DC converters feeding shared input rails |
| Output Noise | 60µVrms (10Hz–100kHz); minimizes phase noise degradation in VCOs and LNAs |
| Quiescent Current | 35µA typical; enables >1-year battery life in always-on sensor nodes with periodic wake-up |
| Dropout Voltage | 280mV at 150mA (2.0V ≤ VOUT < 2.5V range); allows operation from single-cell Li-ion (3.0V min) down to 2.48V |
| Input Voltage Range | 1.7V to 5.25V; compatible with 1.8V, 2.5V, 3.3V, and 5V system rails |
Pinout & Package
SOT25 (5-pin, 2.9mm × 2.8mm × 1.3mm) package with exposed thermal pad. Requires PCB copper pour connected to GND for thermal dissipation; pin 4 is NC (not connected internally, recommended tied to GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Power input | Accepts 1.7–5.25V; requires 0.47µF ceramic capacitor placed within 2mm of pin for stability |
| GND (Pin 2) | Ground reference | Primary return path for load current and regulator internal circuits; connects to thermal pad |
| EN (Pin 3) | Enable control | Active-high logic input; drives regulator ON/OFF; must be driven-never left floating |
| NC (Pin 4) | No connect | Internally unconnected; tie to GND to maximize PCB copper area for thermal conduction |
| VOUT (Pin 5) | Regulated output | Delivers stable 2.2V ±1%; place 0.47µF ceramic capacitor within 2mm of pin and GND |
Key Features
| Feature | Design Value |
|---|---|
| High PSRR | 75dB @ 1kHz enables clean power delivery in noisy mixed-signal environments |
| Ultra-low noise | 60µVrms output noise preserves signal integrity in RF and precision analog circuits |
| Low IQ | 35µA quiescent current extends battery runtime in always-on portable applications |
| Wide VIN range | 1.7V–5.25V input compatibility simplifies use across multiple rail architectures |
| Small footprint | SOT25 package (2.9×2.8mm) reduces board area vs. legacy SOT23 while improving thermal performance |
Applications
| RF Power Amplifier Bias | Wi-Fi/Bluetooth Transceiver Core Supply |
|---|---|
Use Scenario: Providing stable 2.2V bias to GaAs pHEMT power amplifiers in 2.4GHz/5GHz modules. IC Role / Device Role / Timing Role: Low-noise LDO delivering regulated VPA with minimal ripple-induced AM-to-PM distortion. Use Value: 60µVrms noise and 75dB PSRR prevent EVM degradation and maintain ACLR compliance under dynamic PA loading. |
Use Scenario: Supplying core logic and PLL circuits in dual-band Wi-Fi 6/Bluetooth 5 SoCs. IC Role / Device Role / Timing Role: Primary 2.2V domain regulator ensuring jitter-free clock generation and digital logic stability. Use Value: ±1% output accuracy and fast load transient response (<100µs settling) prevent timing violations during burst-mode packet transmission. |
| Camera Module Image Sensor Bias | Portable Media Player Audio Codec Supply |
Use Scenario: Powering CIS analog front-end and column ADC in smartphone camera modules. IC Role / Device Role / Timing Role: Clean 2.2V analog supply isolating image sensor from digital switching noise. Use Value: 75dB PSRR at 1kHz rejects noise from high-speed MIPI D-PHY interfaces, reducing fixed-pattern noise in raw image data. |
Use Scenario: Delivering low-noise 2.2V to stereo audio DACs and headphone amplifiers in portable media players. IC Role / Device Role / Timing Role: Dedicated analog supply rail decoupled from noisy digital subsystems. Use Value: 60µVrms output noise directly translates to >105dB SNR in audio playback, eliminating audible hiss in high-gain headphone outputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-2202E/TO | 250mA rated, 6µA IQ, but only 60dB PSRR at 1kHz and 120µVrms noise | Lacks sufficient PSRR/noise performance for RF-sensitive designs | Prefer for ultra-low-power sensor nodes where RF isolation is not required |
| Torex XC6206P222MR-G | 150mA rated, ±2% accuracy, 45dB PSRR at 1kHz, no enable pin | Fixed output only; no active control for power sequencing | Use where cost sensitivity outweighs need for EN control and tight accuracy |
Compared with MCP1700-2202E/TO and XC6206P222MR-G, the AP7315-22W5-7 uniquely balances 75dB PSRR, 60µVrms noise, ±1% accuracy, and logic-enable functionality in a compact SOT25 package-making it optimal for RF and precision analog supply domains where noise and regulation stability are critical.
Availability
AP7315-22W5-7 is available at Aetrix Electronics and suitable for RF power amplifier bias, Wi-Fi/Bluetooth transceiver core supply, camera module image sensor bias, and portable media player audio codec supply requiring stable component supply across production volumes.
Supply support for AP7315-22W5-7 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 manufacturer specializing in discrete, analog, and mixed-signal solutions for power management, signal integrity, and connectivity applications.
The AP7315 series belongs to Diodes' high-PSRR, low-noise LDO product line, engineered specifically for noise-sensitive RF, imaging, and portable consumer electronics where clean, accurate, and efficient local regulation is essential.
FAQ
What is the thermal pad connection requirement for AP7315-22W5-7?
The SOT25 package includes an exposed thermal pad that must be connected to a large PCB copper area tied to GND for effective heat dissipation. Do not use the pad solely as the GND electrode; instead, integrate it into a broader ground plane to reduce junction temperature rise under 150mA load. This improves long-term reliability and maintains output accuracy over temperature.
Can AP7315-22W5-7 be used without connecting the EN pin?
No-the EN pin must not be left floating. If enable functionality is unused, tie EN directly to VIN to ensure continuous operation. Leaving EN unconnected risks undefined regulator state, potential oscillation, or failure to start up reliably due to leakage-induced threshold uncertainty.
Is AP7315-22W5-7 pin-compatible with other AP7315 variants in SOT25?
Yes-all AP7315 variants in SOT25 (e.g., AP7315-25W5-7, AP7315-33W5-7) share identical pinout, package dimensions, and thermal pad layout. Only the fixed output voltage differs; no PCB redesign is needed when substituting between 1.1V–3.3V versions in the same SOT25 footprint.
Does AP7315-22W5-7 include short-circuit protection?
Yes-it features fold-back current limiting that clamps output current to ~55mA during VOUT-to-GND short events. This protects the device from thermal damage and prevents upstream supply collapse, enabling safe recovery once the fault is removed without requiring external current-limiting components.
AP7315-22W5-7 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):
- 5.25V
- Voltage - Output (Min/Fixed):
- 2.2V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.38V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 60 µA
- Current - Supply (Max):
- 100 µA
- PSRR:
- 75dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
AP7315-22W5-7 FAQ
1.How can I place an order for AP7315-22W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7315-22W5-7 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 AP7315-22W5-7 reliable?
The price and inventory of AP7315-22W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7315-22W5-7 is usually 5 days.
3.What payment methods are accepted for AP7315-22W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7315-22W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7315-22W5-7?
AP7315-22W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7315-22W5-7 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 AP7315-22W5-7?
For technical support, including AP7315-22W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7315-22W5-7 requirements.
6.How does Aetrix verify that AP7315-22W5-7 is sourced from the original manufacturer or authorized distributors?
All AP7315-22W5-7 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 AP7315-22W5-7 meets industry standards.
7.What is the process for return or replacement of AP7315-22W5-7?
All AP7315-22W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7315-22W5-7, 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 AP7315-22W5-7 part is unused and in its original packaging.
Return procedure for AP7315-22W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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