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Diodes Incorporated AP7315-11W5-7
- Part No.:
- AP7315-11W5-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7315-11W5-7.pdf
- Description:
- IC REG LINEAR 1.1V 150MA SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:3,433
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Product details
Overview
AP7315-11W5-7 from Diodes Incorporated is a 150mA low-dropout linear regulator with fixed 1.1V output, ±1% accuracy, 75dB PSRR at 1kHz, 60µVrms output noise (10Hz–100kHz), and 35µA quiescent current. It operates from 1.7V to 5.25V input and delivers stable power to noise-sensitive RF supply rails in portable wireless devices.
For engineers reviewing the AP7315-11W5-7 datasheet, AP7315-11W5-7 pinout, AP7315-11W5-7 application, or AP7315-11W5-7 equivalent, this page provides verified technical context, package-specific pin functions, real-world use cases, and validated alternative options for low-noise, low-power LDO selection in space-constrained handheld designs.
Technical Context
The AP7315-11W5-7 uses a CMOS-based architecture with integrated voltage reference, error amplifier, and current-limit circuitry. Its enable-controlled operation supports dynamic power sequencing, while its non-discharge output variant maintains load-side voltage during shutdown.
Designed for high PSRR and ultra-low noise, it achieves 75dB ripple rejection at 1kHz and 60µVrms integrated noise across 10Hz–100kHz - critical for powering RF transceivers and precision analog blocks where supply-induced jitter or spectral contamination must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.1V ±1% - ensures precise biasing of low-voltage logic and RF ICs without external feedback network. |
| Max Output Current | 150mA - sufficient for powering baseband processors, sensor interfaces, or single-channel RF front-ends. |
| PSRR | 75dB at 1kHz - suppresses switching noise from adjacent DC/DC converters in mixed-signal PCB layouts. |
| Output Noise | 60µVrms (10Hz–100kHz) - prevents phase noise degradation in VCOs and ADC reference supplies. |
| Quiescent Current | 35µA typical - enables multi-day battery life in always-on sensor nodes and standby communication modules. |
| Input Voltage Range | 1.7V to 5.25V - compatible with single-cell Li-ion, Li-poly, or regulated 3.3V/5V system rails. |
| Dropout Voltage | 0.50V max at 150mA (for 1.1V output) - allows regulation down to ~1.6V input, extending usable battery range. |
Pinout & Package
SOT25 (5-pin) package with exposed thermal pad; optimized for compact layout and thermal performance in portable PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 – VIN | Power input | Accepts 1.7V–5.25V; requires local 0.47µF ceramic decoupling capacitor placed adjacent to pin. |
| 2 – GND | Ground reference | Primary return path for input/output currents; must connect to low-impedance ground plane for stability and noise control. |
| 3 – EN | Enable control | Active-high logic input; drives regulator ON when ≥1.3V, OFF when ≤0.5V; must not float. |
| 4 – NC | No-connect | Internally unconnected; recommended to tie to GND for improved thermal dissipation and EMI shielding. |
| 5 – VOUT | Regulated output | Delivers 1.1V ±1% at up to 150mA; requires 0.47µF ceramic output capacitor placed near load and GND. |
Key Features
| Feature | Design Value |
|---|---|
| High PSRR | 75dB at 1kHz - mitigates coupling from noisy switchers in PMIC-integrated systems. |
| Ultra-low noise | 60µVrms (10Hz–100kHz) - preserves signal integrity in RF receiver chains and high-resolution ADC references. |
| Low IQ | 35µA typical - reduces standby power loss in battery-powered IoT endpoints and wearables. |
| Wide input range | 1.7V–5.25V - supports direct connection to single-cell batteries or post-regulation rails without intermediate conversion. |
| ±1% output accuracy | Guaranteed over temperature and line/load - eliminates need for external trimming in production calibration. |
Applications
| RF Power Amplifier Bias | Low-Power Microcontroller Core Supply |
|---|---|
|
Use Scenario: Providing clean, stable 1.1V bias to GaAs or SiGe RF power amplifiers in Bluetooth/Wi-Fi modules. IC Role / Device Role / Timing Role: Low-noise LDO delivering regulated voltage to PA collector/drain rail, rejecting switching noise from shared DC/DC converter. Use Value: 60µVrms noise prevents AM-to-PM conversion and adjacent channel leakage; 75dB PSRR isolates PA from digital supply transients. |
Use Scenario: Supplying core voltage to ARM Cortex-M0+ microcontrollers operating in deep-sleep mode with periodic wake-up. IC Role / Device Role / Timing Role: Enable-controlled LDO enabling fast power gating of MCU core domain during sleep cycles. Use Value: 35µA quiescent current extends battery life; ±1% accuracy ensures reliable brown-out detection and clock stability. |
| Camera Sensor Analog Front-End | Wireless Audio Codec Reference |
|
Use Scenario: Powering analog pixel array and column ADC circuitry in compact mobile camera modules. IC Role / Device Role / Timing Role: Dedicated low-noise LDO for image sensor analog supply, isolated from noisy digital I/O and flash LED drivers. Use Value: 60µVrms noise avoids fixed-pattern noise and SNR degradation; SOT25 footprint fits tight board area near sensor die. |
Use Scenario: Delivering ultra-clean 1.1V reference to stereo audio DACs and headphone amplifiers in true wireless earbuds. IC Role / Device Role / Timing Role: Precision LDO supplying DAC internal reference and analog output stage, rejecting RF interference from Bluetooth radio. Use Value: ±1% output accuracy maintains THD+N specification; 75dB PSRR prevents audible beat tones from 2.4GHz carrier leakage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise, low-IQ LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP7315-11SA-7 | SOT23-3 package (3-pin), no EN pin, no NC terminal - simpler enable-free operation. | Lacks enable control; unsuitable for power-gated domains requiring dynamic on/off sequencing. | Select when board space permits larger SOT23 footprint and enable functionality is unnecessary. |
| MCP1700T-1102E/TT | Microchip 150mA LDO; 1.1V output, ±2% accuracy, 65dB PSRR @1kHz, 55µVrms noise, 1.6µA IQ. | Lower IQ but higher output tolerance and lower PSRR - less effective in RF-noise-critical paths. | Prefer for ultra-low-power sensor nodes where noise immunity is secondary to battery longevity. |
Compared with AP7315-11W5-7, the AP7315-11SA-7 sacrifices enable control for reduced pin count and cost, while the MCP1700T-1102E/TT trades PSRR and accuracy for sub-µA quiescent current - making each suitable for distinct trade-off priorities in portable power design.
Availability
AP7315-11W5-7 is available at Aetrix Electronics and suitable for RF power amplifier bias, low-power microcontroller core supply, camera sensor analog front-end, and wireless audio codec reference requiring stable component supply, consistent parametric performance, and long-term manufacturability.
Supply support for AP7315-11W5-7 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 for consumer, computing, communications, industrial, and automotive markets.
The AP7315 series belongs to Diodes' high-performance LDO portfolio, engineered specifically for noise-sensitive, battery-powered portable electronics demanding ultra-low noise, high PSRR, and minimal quiescent current.
FAQ
What is the maximum allowable input voltage for AP7315-11W5-7?
The absolute maximum input voltage is 6.0V, but the recommended operating range is 1.7V to 5.25V. Exceeding 5.25V may cause permanent damage or degrade long-term reliability, even if within absolute ratings. Operation above 5.25V voids guaranteed specifications per the datasheet's Recommended Operating Conditions table.
Does AP7315-11W5-7 include output discharge functionality?
No. The "W5" suffix indicates SOT25 packaging and non-discharge configuration. The AP7315-11W5-7 holds output voltage after shutdown - unlike the "D"-suffixed variants (e.g., AP7315D-11W5-7), which integrate an internal discharge FET to rapidly pull VOUT to GND when disabled.
Can AP7315-11W5-7 operate with ceramic output capacitors smaller than 0.47µF?
The datasheet specifies 0.47µF as the minimum recommended value for stability and transient response. Using smaller capacitance risks oscillation or degraded load step recovery, particularly under 150mA load conditions. Lower ESR ceramics may improve performance, but capacitance must remain ≥0.47µF per Electrical Characteristics and Application Information sections.
Is the NC pin on AP7315-11W5-7 required to be grounded?
While internally unconnected, the NC pin (Pin 4) is recommended to be tied to GND in PCB layout. This practice maximizes copper area for thermal dissipation and improves EMI shielding - both confirmed in the Pin Descriptions and Layout Considerations sections of the official datasheet (DS38352 Rev. 2-2).
AP7315-11W5-7 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):
- 1.1V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.64V @ 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
AP7315-11W5-7 FAQ
1.How can I place an order for AP7315-11W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7315-11W5-7 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 AP7315-11W5-7 reliable?
The price and inventory of AP7315-11W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7315-11W5-7 is usually 5 days.
3.What payment methods are accepted for AP7315-11W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7315-11W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7315-11W5-7?
AP7315-11W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7315-11W5-7 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 AP7315-11W5-7?
For technical support, including AP7315-11W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7315-11W5-7 requirements.
6.How does Aetrix verify that AP7315-11W5-7 is sourced from the original manufacturer or authorized distributors?
All AP7315-11W5-7 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 AP7315-11W5-7 meets industry standards.
7.What is the process for return or replacement of AP7315-11W5-7?
All AP7315-11W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7315-11W5-7, 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 AP7315-11W5-7 part is unused and in its original packaging.
Return procedure for AP7315-11W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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