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

Diodes Incorporated AP7315D-23W5-7

Name: AP7315D-23W5-7
Brand: Diodes Incorporated
SKU: AP7315D-23W5-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AP7315D-23W5-7

Manufacturer:: Diodes Incorporated

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

Package:: SC-74A, SOT-753

Datasheet:: AP7315D-23W5-7.pdf

Description:: IC REG LINEAR 2.3V 150MA SOT25

Quantity:: RFQ Add To RFQ list

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Product details

Overview

AP7315D-23W5-7 from Diodes Incorporated is a 150mA low-dropout linear regulator with fixed 2.3V output, ±1% accuracy, 75dB PSRR at 1kHz, 60µV_rms output noise (10Hz–100kHz), and 35µA quiescent current - designed for RF supply rails in compact portable electronics.

For engineers reviewing the AP7315D-23W5-7 datasheet, AP7315D-23W5-7 pinout, AP7315D-23W5-7 application, or AP7315D-23W5-7 equivalent, this page delivers verified electrical specs, SOT25 package layout guidance, real-world use cases in RF and imaging subsystems, and validated alternative LDOs with documented functional trade-offs.

Technical Context

The AP7315D-23W5-7 integrates a CMOS-based error amplifier, precision voltage reference, current-limit circuit, and active discharge path activated during shutdown. Its enable-controlled architecture supports fast turn-on/turn-off with EN input thresholds of 0.5V (low) and 1.3V (high).

It operates across 1.7V–5.25V input range, maintains regulation down to 280mV dropout at 150mA (for V_OUT = 2.3V), and features built-in short-circuit protection clamping output current to ~55mA when V_OUT shorts to GND.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 2.3V ±1% - ensures stable bias for RF power amplifiers and analog sensor interfaces without external feedback.
Max Output Current	150mA continuous - sufficient for powering baseband ICs, camera ISPs, or Bluetooth SoCs in handheld devices.
PSRR	75dB at 1kHz - suppresses switching noise from adjacent DC-DC converters feeding noisy system rails.
Output Noise	60µV_rms (10Hz–100kHz) - minimizes phase noise degradation in RF local oscillators and ADC reference supplies.
Quiescent Current	35µA typical - extends battery life in always-on sensor nodes and standby-mode wireless peripherals.
Dropout Voltage	280mV at 150mA - enables operation from single-cell Li-ion (3.0V min) or dual-cell alkaline (3.2V min) with margin.
Enable Thresholds	V_IL ≤ 0.5V, V_IH ≥ 1.3V - compatible with 1.8V/3.3V GPIOs without level-shifting.

Pinout & Package

SOT25 (5-pin) package with exposed thermal pad; optimized for high-density PCB layouts and thermal performance in space-constrained mobile designs.

Pin/Terminal	Circuit Role	Design Meaning
1 – VIN	Input power supply	Accepts 1.7V–5.25V; requires 0.47µF ceramic decoupling capacitor placed adjacent to pin.
2 – GND	Ground reference	Primary return path; must connect to low-impedance ground plane to minimize noise coupling and voltage drop.
3 – EN	Enable control input	Active-high logic; drives regulator into shutdown (<1µA I_STANDBY) when pulled low; must not float.
4 – NC	No-connect terminal	Internally unconnected; recommended to tie to GND for improved thermal dissipation and EMI shielding.
5 – VOUT	Regulated output	Delivers 2.3V ±1%; requires 0.47µF low-ESR ceramic capacitor near load to ensure stability under transient loads.

Key Features

Feature	Design Value
High PSRR (75dB @ 1kHz)	Rejects ripple from noisy switchers, enabling clean power delivery to sensitive RF front-ends without additional filtering.
Low-noise output (60µV_rms)	Preserves signal integrity in audio codecs, high-resolution ADCs, and PLL reference supplies where noise directly impacts SNR.
Active discharge on shutdown	Drains VOUT via 30Ω internal FET when EN = low, preventing hold-up voltage that could delay system reset or cause latch-up.
Ultra-low quiescent current (35µA)	Reduces standby power loss in battery-powered IoT sensors and wearable devices requiring multi-week operational life.
Wide input range (1.7V–5.25V)	Supports direct connection to Li-ion, Li-Po, or regulated 3.3V/5V rails without pre-regulation, simplifying power tree design.

Applications

RF Power Amplifier Supply

Camera Image Signal Processor (ISP)

Use Scenario: Powers 2.3V bias rail for LTE/5G PA modules in smartphones and cellular IoT modules.

IC Role / Device Role / Timing Role: Low-noise, high-PSRR LDO delivering stable voltage to PA collector/drain supply, minimizing AM-to-PM distortion.

Use Value: 60µV_rms noise prevents EVM degradation; 75dB PSRR isolates PA from PMIC switching noise, maintaining ACLR compliance.

Use Scenario: Supplies 2.3V core voltage to image signal processors in smartphone rear cameras and automotive ADAS cameras.

IC Role / Device Role / Timing Role: Regulator providing clean, accurate voltage to ISP digital logic and analog front-end blocks during burst capture.

Use Value: ±1% output accuracy ensures consistent ADC gain calibration; 280mV dropout enables operation from shared 3.0V system rail.

Wireless Adapter Baseband

Portable Media Player Audio Codec

Use Scenario: Powers 2.3V I/O and core rails of Wi-Fi 6/Bluetooth 5.3 baseband ICs in USB dongles and embedded modules.

IC Role / Device Role / Timing Role: Enables/disables power to baseband logic using EN pin synchronized with host processor sleep/wake cycles.

Use Value: 35µA quiescent current reduces idle power; active discharge clears residual charge to prevent false wake events.

Use Scenario: Supplies 2.3V analog supply to stereo audio DACs and headphone amplifiers in portable media players.

IC Role / Device Role / Timing Role: Low-noise LDO replacing bulkier solutions to meet THD+N < -95dB requirements in high-fidelity playback.

Use Value: 60µV_rms noise avoids audible hiss; ±1% accuracy maintains consistent volume scaling across battery discharge cycle.

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-noise, enable-controlled LDO applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MCP1703T-2302E/MB	2.3V fixed, 250mA, 6µA I_Q, no discharge FET, 65dB PSRR @ 1kHz	Lacks active discharge; lower PSRR limits noise rejection in RF-dense layouts	Prefer when ultra-low I_Q dominates over shutdown behavior and PSRR is secondary
Torex XC6210B232MR-G	2.3V fixed, 150mA, 45µA I_Q, discharge FET, 70dB PSRR @ 1kHz, SOT25-compatible	Slightly higher noise (80µV_rms), lower PSRR, same footprint and EN logic	Valid drop-in replacement if 70dB PSRR suffices and 80µV noise meets system SNR budget

Compared with MCP1703T-2302E/MB, AP7315D-23W5-7 adds critical active discharge and +10dB PSRR for RF integrity; versus XC6210B232MR-G, it delivers 20µV_rms lower noise and tighter ±1% accuracy - decisive for high-fidelity analog and 5G front-end designs.

Availability

AP7315D-23W5-7 is available at Aetrix Electronics and suitable for RF power amplifier supply, camera ISP biasing, wireless adapter baseband, and portable media player audio codec applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for AP7315D-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 semiconductor company specializing in discrete, analog, and mixed-signal solutions for power management, signal integrity, and connectivity applications.

The AP7315 series belongs to Diodes' high-performance LDO portfolio, engineered specifically for noise-sensitive portable electronics where PSRR, output accuracy, and ultra-low quiescent current are critical to battery life and signal fidelity.

FAQ

What is the maximum input voltage rating for AP7315D-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 overvoltage stress and reduce reliability; operation above 6.0V risks permanent damage per the Absolute Maximum Ratings table.

Does AP7315D-23W5-7 require an external output capacitor, and what value is recommended?

Yes - a minimum 0.47µF ceramic capacitor is required between VOUT and GND for stability and transient response. Diodes recommends placing it within 2mm of the VOUT and GND pins, using X5R/X7R dielectric with ≤10mΩ ESR to maintain phase margin across temperature and load conditions.

How does the active discharge function operate, and what is its on-resistance?

When EN is driven low, an internal 30Ω N-channel FET connects VOUT to GND, discharging output capacitance rapidly. This prevents residual voltage from interfering with system reset sequencing or causing back-powering of upstream circuitry during power-down transitions.

Can AP7315D-23W5-7 be used in automotive applications?

No - AP7315D-23W5-7 is not AEC-Q100 qualified. Diodes offers automotive-grade variants (e.g., AP7315Q series) with PPAP capability, IATF 16949 manufacturing, and extended temperature validation; this part is rated for -40°C to +85°C industrial operation only.

AP7315D-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

AP7315D-23W5-7 FAQ

1.How can I place an order for AP7315D-23W5-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for AP7315D-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 AP7315D-23W5-7 reliable?

The price and inventory of AP7315D-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 AP7315D-23W5-7 is usually 5 days.

3.What payment methods are accepted for AP7315D-23W5-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7315D-23W5-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AP7315D-23W5-7?

AP7315D-23W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AP7315D-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 AP7315D-23W5-7?

For technical support, including AP7315D-23W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7315D-23W5-7 requirements.

6.How does Aetrix verify that AP7315D-23W5-7 is sourced from the original manufacturer or authorized distributors?

All AP7315D-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 AP7315D-23W5-7 meets industry standards.

7.What is the process for return or replacement of AP7315D-23W5-7?

All AP7315D-23W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7315D-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 AP7315D-23W5-7 part is unused and in its original packaging.

Return procedure for AP7315D-23W5-7:

1.Submit a request within 90 days.

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

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