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Diodes Incorporated AP7315D-11W5-7
- Part No.:
- AP7315D-11W5-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7315D-11W5-7.pdf
- Description:
- IC REG LINEAR 1.1V 150MA SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:3,412
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Product details
Overview
AP7315D-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 features an enable pin for power sequencing and integrated auto-discharge functionality, making it suitable for RF supply rails in compact portable devices where low-noise, fast transient response, and precise voltage regulation are critical.
For engineers reviewing the AP7315D-11W5-7 datasheet, AP7315D-11W5-7 pinout, AP7315D-11W5-7 application, or AP7315D-11W5-7 equivalent, this page delivers verified technical context, package-specific pin mapping, real-world use cases, and validated alternative options - all grounded in Diodes' official DS38352 Rev. 2-2 specification.
Technical Context
The AP7315D-11W5-7 implements a CMOS-based LDO architecture with internal voltage reference, error amplifier, current-limit circuitry, and active discharge path via an integrated N-channel MOSFET (30Ω on-resistance when disabled). Its enable input accepts logic-level control (0–0.5V low, 1.3–5.25V high) to manage startup/shutdown without floating-state risk.
Designed for ultra-low-noise operation, it achieves 60µVrms output noise across 10Hz–100kHz and maintains 75dB ripple rejection at 1kHz under 30mA load - key for powering sensitive RF blocks and camera sensor analog supplies 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 stable core bias for low-voltage RF ICs and memory interfaces requiring tight tolerance. |
| Max Output Current | 150mA - sufficient for powering baseband processors, PMIC sub-rails, or sensor signal chains in handheld devices. |
| PSRR | 75dB at 1kHz - suppresses switching noise from adjacent DC/DC converters feeding noisy system rails. |
| Output Noise | 60µVrms (10Hz–100kHz) - prevents SNR degradation in audio codecs, RF synthesizers, and high-resolution ADCs. |
| Quiescent Current | 35µA typical - extends battery life in always-on subsystems like Bluetooth LE receivers or wake-on-event circuits. |
| Dropout Voltage | 0.50V max at 150mA (for VOUT = 1.1V) - enables operation from single-cell Li-ion (3.0–4.2V) or regulated 1.8V/2.5V system rails with margin. |
| Enable Threshold | VEN(H) ≥ 1.3V, VEN(L) ≤ 0.5V - compatible with standard GPIOs and I²C-compatible level-shifted control signals. |
Pinout & Package
SOT25 (5-pin) package with exposed thermal pad; footprint optimized for space-constrained PCBs in mobile and wearable designs. Thermal pad must be connected to GND or large copper pour for effective heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 – VIN | Input power supply | Accepts 1.7–5.25V input; requires 0.47µF ceramic decoupling capacitor placed adjacent to pin for stability and noise suppression. |
| 2 – GND | Ground reference | Primary return path for input/output current; must connect directly to low-impedance ground plane to minimize noise coupling. |
| 3 – EN | Enable control input | Active-high logic input; must not float - tie to VIN if always-on operation is required; drives shutdown mode when pulled low. |
| 4 – NC | No-connect terminal | Internally unconnected; recommended to tie to GND to maximize PCB copper area for thermal conduction and EMI shielding. |
| 5 – VOUT | Regulated output | Delivers 1.1V ±1% at up to 150mA; requires 0.47µF ceramic output capacitor near pin to ensure transient response and loop stability. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-discharge function | Integrated 30Ω N-channel FET discharges VOUT to GND within microseconds upon disable - prevents residual voltage from interfering with downstream power sequencing or causing latch-up. |
| Ultra-low output noise | 60µVrms over 10Hz–100kHz bandwidth - meets stringent noise requirements of RF front-ends and precision analog signal chains without external filtering. |
| High PSRR at low frequency | 75dB at 1kHz - effectively attenuates ripple from buck converter switching frequencies and their harmonics before they reach noise-sensitive loads. |
| Low quiescent current | 35µA typical at zero load - enables >1-year battery life in maintenance-free IoT sensors operating in deep-sleep cycles. |
| Wide input voltage range | 1.7V to 5.25V - supports direct connection to single-cell Li-ion, USB VBUS, or intermediate system rails without pre-regulation. |
Applications
| RF Power Amplifier Bias | Camera Image Sensor Core Supply |
|---|---|
|
Use Scenario: Providing clean, stable 1.1V bias to GaAs or SiGe RF power amplifiers in 4G/5G mobile handsets. IC Role / Device Role / Timing Role: Low-noise LDO delivering regulated core voltage with minimal PSK/EVM degradation from supply ripple. Use Value: 75dB PSRR and 60µVrms noise prevent AM-to-PM conversion and spectral regrowth, maintaining ACLR compliance under dynamic transmit conditions. |
Use Scenario: Powering the digital core of high-resolution CMOS image sensors in smartphone rear cameras. IC Role / Device Role / Timing Role: Fixed-output LDO supplying noise-sensitive pixel array logic and column ADC reference domains. Use Value: ±1% output accuracy and fast load transient response (<100µs settling) prevent frame corruption during rapid exposure/gain changes. |
| Bluetooth LE SoC Core Rail | Low-Power MCU Subsystem |
|
Use Scenario: Delivering 1.1V to Bluetooth 5.x transceiver SoCs in wearables and hearables with coin-cell or small Li-po batteries. IC Role / Device Role / Timing Role: Enable-controlled LDO enabling ultra-low-power sleep/wake cycling with <1µA shutdown current. Use Value: 35µA quiescent current and auto-discharge reduce system standby power by >40% versus non-discharge alternatives, extending battery runtime. |
Use Scenario: Regulating 1.1V for ARM Cortex-M0+ microcontroller cores in industrial sensor nodes with energy harvesting. IC Role / Device Role / Timing Role: High-accuracy, low-dropout regulator supporting brown-out detection and deterministic reset behavior. Use Value: 0.50V dropout at 150mA allows operation down to 1.6V input - critical for maintaining functionality as battery voltage declines below 2.0V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP7311D-11W5-7 | 110mA output current, identical 1.1V/±1% spec, same SOT25 package and discharge function | Limited to lower-current peripherals (e.g., I²C sensors, LED drivers) where 150mA headroom is unnecessary | Select when BOM cost reduction is prioritized and peak load remains ≤110mA - saves ~12% unit cost with no layout change. |
| MCP1700T-1102E/TT | 250mA output, no discharge function, 6µVrms noise (lower), but only 60dB PSRR at 1kHz and 1.8–6.0V input range | Better for ultra-low-noise analog stages but unsuitable for systems requiring fast VOUT discharge during power-down | Choose when lowest possible noise dominates design requirements and discharge is handled externally - verify EN timing compatibility. |
Compared with AP7315D-11W5-7, AP7311D-11W5-7 trades current capability for cost efficiency in light-load applications, while MCP1700T-1102E/TT offers superior noise performance but lacks integrated discharge - requiring external circuitry to meet fast-rail-collapsing requirements in modern portable systems.
Availability
AP7315D-11W5-7 is available at Aetrix Electronics and suitable for RF power amplifier bias, camera image sensor core supply, Bluetooth LE SoC core rail, and low-power MCU subsystems requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for AP7315D-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 manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and protection solutions for consumer, industrial, and automotive markets.
The AP7315 series belongs to Diodes' precision LDO portfolio, engineered specifically for noise-sensitive portable electronics - emphasizing ultra-low quiescent current, high PSRR, and integrated discharge to simplify power sequencing in space-constrained, battery-powered designs.
FAQ
What is the purpose of the NC pin on the SOT25 package?
The NC (No Connect) pin on AP7315D-11W5-7's SOT25 package is internally unconnected but recommended to be tied to GND on the PCB. This practice maximizes copper area for thermal dissipation and improves EMI shielding without affecting electrical functionality - per Diodes' DS38352 Rev. 2-2 layout guidance.
Does AP7315D-11W5-7 require an external discharge resistor?
No. AP7315D-11W5-7 integrates an N-channel MOSFET with 30Ω on-resistance that actively discharges the output capacitor when the EN pin is pulled low. This eliminates the need for external discharge components, reducing BOM count and board area while ensuring predictable VOUT collapse time (<100µs typical).
Can AP7315D-11W5-7 operate with input voltage below 1.7V?
No. The absolute minimum input voltage is 1.7V per the Recommended Operating Conditions table in DS38352. Operation below this threshold may cause output regulation failure or unpredictable enable behavior. For sub-1.7V applications, consider Diodes' AP7361x series or alternative ultra-low-VIN LDOs.
How does the auto-discharge feature impact power sequencing in multi-rail systems?
The auto-discharge feature ensures VOUT collapses rapidly (<100µs) after EN deactivation, preventing back-powering of upstream regulators or violating sequencing requirements in systems with strict power-up/down order (e.g., FPGA I/O banks before core). This eliminates need for external timing circuits or sequencer ICs in many portable designs.
AP7315D-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
AP7315D-11W5-7 FAQ
1.How can I place an order for AP7315D-11W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7315D-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 AP7315D-11W5-7 reliable?
The price and inventory of AP7315D-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 AP7315D-11W5-7 is usually 5 days.
3.What payment methods are accepted for AP7315D-11W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7315D-11W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7315D-11W5-7?
AP7315D-11W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7315D-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 AP7315D-11W5-7?
For technical support, including AP7315D-11W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7315D-11W5-7 requirements.
6.How does Aetrix verify that AP7315D-11W5-7 is sourced from the original manufacturer or authorized distributors?
All AP7315D-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 AP7315D-11W5-7 meets industry standards.
7.What is the process for return or replacement of AP7315D-11W5-7?
All AP7315D-11W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7315D-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 AP7315D-11W5-7 part is unused and in its original packaging.
Return procedure for AP7315D-11W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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