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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Diodes Incorporated AP7315-23W5-7

Name: AP7315-23W5-7
Brand: Diodes Incorporated
SKU: AP7315-23W5-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AP7315-23W5-7

Manufacturer:: Diodes Incorporated

Category:: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Package:: SC-74A, SOT-753

Datasheet:: AP7315-23W5-7.pdf

Description:: IC REG LINEAR 2.3V 150MA SOT25

Quantity:: RFQ Add To RFQ list

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Product details

Overview

AP7315-23W5-7 from Diodes Incorporated is a 2.3V fixed-output, 150mA low-dropout linear regulator with ±1% output voltage accuracy, 75dB PSRR at 1kHz, and 60µV_rms output noise (10Hz–100kHz). Built on CMOS process, it features enable control, low 35µA quiescent current, and operates from 1.7V to 5.25V input-optimized for RF supply rails in portable wireless devices.

For engineers reviewing the AP7315-23W5-7 datasheet, AP7315-23W5-7 pinout, AP7315-23W5-7 application, or AP7315-23W5-7 equivalent, key selection criteria include dropout voltage at 150mA (max 0.34V), EN logic thresholds (0.5V low / 1.3V high), thermal performance in SOT25, and compatibility with 0.47µF ceramic input/output capacitors.

Technical Context

The AP7315-23W5-7 integrates a precision voltage reference, error amplifier, current-limit circuit, and CMOS pass transistor-enabling stable 2.3V regulation with fast load transient response and no external compensation required. Its non-discharge architecture retains output voltage during shutdown.

It delivers 150mA output with dropout as low as 0.34V at 2.3V V_OUT, supports 1.7V–5.25V input range, and maintains ±1% accuracy over -40°C to +85°C ambient-making it suitable for battery-powered systems where headroom and noise sensitivity are critical.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 2.3V ±1% - ensures stable bias for RF ICs and sensors without external feedback network.
Max Output Current	150mA - sufficient for powering baseband processors, camera modules, or Bluetooth SoCs in compact handheld designs.
PSRR	75dB at 1kHz - suppresses switching noise from PMICs or DC-DC converters feeding adjacent analog/RF circuitry.
Output Noise	60µV_rms (10Hz–100kHz) - minimizes phase noise impact on VCOs and ADC references in communication subsystems.
Quiescent Current	35µA typical - extends battery life in always-on or low-duty-cycle applications like wireless adapters and IoT sensors.
Dropout Voltage	0.34V max at 150mA - enables operation from single-cell Li-ion (3.0V min) or two-cell alkaline (2.4V min) with margin.
Enable Thresholds	V_IL ≤ 0.5V, V_IH ≥ 1.3V - compatible with 1.8V/3.3V GPIOs for precise power sequencing control.

Pinout & Package

SOT25 (5-pin, 2.9mm × 2.8mm × 1.3mm) package with exposed thermal pad connected to GND in PCB layout for enhanced thermal dissipation.

Pin/Terminal	Circuit Role	Design Meaning
1 – VIN	Power input	Accepts 1.7V–5.25V; requires 0.47µF ceramic capacitor placed adjacent to minimize input impedance and supply glitches.
2 – GND	Ground reference	Primary return path for input/output currents; must connect to low-impedance ground plane to maintain PSRR and stability.
3 – EN	Enable control	Active-high logic input; floating state is undefined-must be tied to VIN or controlled by host MCU GPIO to prevent unintended shutdown.
4 – NC	No-connect	Internally unconnected; recommended to tie to GND for improved thermal conduction and EMI shielding via PCB copper fill.
5 – VOUT	Regulated output	Delivers 2.3V ±1%; requires 0.47µF ceramic capacitor placed within 2mm of pin to ensure transient response and loop stability.

Key Features

Feature	Design Value
High PSRR	75dB @ 1kHz - preserves signal integrity in RF front-end power domains by rejecting coupled noise from digital switching supplies.
Ultra-low noise	60µV_rms (10Hz–100kHz) - avoids degradation of SNR in audio codecs, image sensors, and precision ADCs.
Low quiescent current	35µA typical - reduces standby power loss in battery-backed real-time clocks and sensor hubs.
Wide input range	1.7V–5.25V - supports direct connection to Li-ion, Li-Po, or multi-cell alkaline sources without pre-regulation.
Fixed 2.3V output	±1% accuracy over temperature - eliminates need for external resistor dividers and simplifies BOM for space-constrained layouts.

Applications

RF Power Amplifier Bias

Camera Module Core Supply

Use Scenario: Providing clean, stable 2.3V bias to GaAs pHEMT power amplifiers in 4G/5G mobile front-ends.

IC Role / Device Role / Timing Role: Low-noise LDO supplying PA drain voltage with minimal ripple-induced AM-to-PM distortion.

Use Value: 75dB PSRR and 60µV_rms noise prevent spectral regrowth and EVM degradation under dynamic transmit conditions.

Use Scenario: Powering CIS image sensor core logic and analog pixel array in smartphone rear cameras.

IC Role / Device Role / Timing Role: Primary 2.3V rail regulator ensuring consistent pixel response and reduced fixed-pattern noise.

Use Value: ±1% output accuracy and low dropout maintain sensor functionality across full battery discharge curve (3.6V → 3.0V).

Wireless Adapter Baseband

Portable Media Player Audio Codec

Use Scenario: Delivering regulated 2.3V to Wi-Fi/BT SoC baseband processors in USB dongles and wearables.

IC Role / Device Role / Timing Role: Enable-controlled LDO enabling rapid power cycling during sleep/wake transitions.

Use Value: 35µA quiescent current and fast EN response (<100µs turn-on) minimize system-level standby power without sacrificing wake latency.

Use Scenario: Supplying headphone amplifier and DAC circuitry in portable music players with dual-cell alkaline batteries.

IC Role / Device Role / Timing Role: Low-noise post-regulator cleaning up switched-mode supply output for analog audio stages.

Use Value: 0.34V dropout allows operation down to 2.63V input, extending playback time beyond 2.8V cutoff of upstream DC-DC converter.

Equivalent & Alternatives

The following parts are listed as comparable options for similar LDO regulator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MCP1700-2302E/TO	2.3V fixed, 250mA, 6µA I_Q, but only 60dB PSRR @ 1kHz and 120µV_rms noise.	Lacks RF-grade noise/PSRR performance; suited for non-critical digital I/O rails, not RF or precision analog.	Choose when ultra-low I_Q dominates over noise/PSRR-e.g., coin-cell-powered microcontrollers.
Torex XC6210B232MR-G	2.3V fixed, 150mA, 70dB PSRR @ 1kHz, 45µV_rms noise, but requires 1µF minimum C_OUT and has higher 0.45V dropout.	Higher minimum output capacitance increases board area; less suitable for space-constrained RF modules.	Prefer when lower noise is critical and PCB layout permits larger ceramic capacitor footprint.

Compared with MCP1700-2302E/TO, AP7315-23W5-7 provides 15dB higher PSRR and half the output noise-essential for RF bias. Versus XC6210B232MR-G, it achieves lower dropout (0.34V vs. 0.45V) and supports smaller 0.47µF C_OUT, reducing solution size in dense portable designs.

Availability

AP7315-23W5-7 is available at Aetrix Electronics and suitable for RF power amplifier bias, camera module core supply, and wireless adapter baseband applications requiring stable component supply, consistent parametric performance, and long-term industrial availability.

Supply support for AP7315-23W5-7 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 power management, signal integrity, and protection solutions for high-volume electronics markets.

The AP7315 series belongs to Diodes' high-PSRR, low-noise LDO portfolio-designed specifically for noise-sensitive applications in portable communications, imaging, and wireless infrastructure where clean, efficient local regulation is critical.

FAQ

What is the maximum allowable input voltage for AP7315-23W5-7?

The absolute maximum input voltage is 6.0V, but the recommended operating range is 1.7V to 5.25V. Exceeding 5.25V may trigger internal protection or degrade long-term reliability. For 5V rail applications, ensure transient spikes remain below 6.0V using appropriate input filtering.

Can AP7315-23W5-7 be used without connecting the EN pin?

No-the EN pin must not be left floating. It must be either pulled high to VIN (to enable permanently) or driven by a defined logic signal. Floating EN causes unpredictable behavior due to CMOS input threshold uncertainty and may result in intermittent regulation or excessive quiescent current.

Is the NC pin on SOT25 electrically isolated?

Yes, Pin 4 (NC) is internally unconnected. However, Diodes recommends tying it to GND on the PCB to improve thermal conduction from the package's thermal pad and reduce EMI coupling-this does not affect electrical function but enhances thermal and EMC performance.

Does AP7315-23W5-7 include short-circuit protection?

Yes-it features fold-back current limiting that clamps output current to approximately 55mA during V_OUT-to-GND short. This protects the device from thermal damage while maintaining safe junction temperatures under fault conditions without requiring external current-sense components.

AP7315-23W5-7 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):: 2.3V

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

AP7315-23W5-7 FAQ

1.How can I place an order for AP7315-23W5-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for AP7315-23W5-7 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 AP7315-23W5-7 reliable?

The price and inventory of AP7315-23W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7315-23W5-7 is usually 5 days.

3.What payment methods are accepted for AP7315-23W5-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7315-23W5-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AP7315-23W5-7?

AP7315-23W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AP7315-23W5-7 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 AP7315-23W5-7?

For technical support, including AP7315-23W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7315-23W5-7 requirements.

6.How does Aetrix verify that AP7315-23W5-7 is sourced from the original manufacturer or authorized distributors?

All AP7315-23W5-7 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 AP7315-23W5-7 meets industry standards.

7.What is the process for return or replacement of AP7315-23W5-7?

All AP7315-23W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7315-23W5-7, 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 AP7315-23W5-7 part is unused and in its original packaging.

Return procedure for AP7315-23W5-7:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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