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

Diodes Incorporated AP7315D-295W5-7

Name: AP7315D-295W5-7
Brand: Diodes Incorporated
SKU: AP7315D-295W5-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AP7315D-295W5-7

Manufacturer:: Diodes Incorporated

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

Package:: SC-74A, SOT-753

Datasheet:: AP7315D-295W5-7.pdf

Description:: IC REG LINEAR 2.95V 150MA SOT25

Quantity:: RFQ Add To RFQ list

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Product details

Overview

AP7315D-295W5-7 from Diodes Incorporated is a 2.95V fixed-output, 150mA low-dropout linear regulator with ±1% output voltage accuracy, 75dB PSRR at 1kHz, 60µV_rms output noise (10Hz–100kHz), and 35µA quiescent current. It features an enable input, CMOS-based architecture, and is optimized for RF supply rails in compact portable electronics.

For engineers reviewing the AP7315D-295W5-7 datasheet, AP7315D-295W5-7 pinout, AP7315D-295W5-7 application, or AP7315D-295W5-7 equivalent, this LDO delivers high PSRR and ultra-low noise in a space-constrained SOT25 package-critical for noise-sensitive analog/RF subsystems requiring stable 2.95V biasing with fast load transient response.

Technical Context

The AP7315D-295W5-7 integrates a precision voltage reference, error amplifier, current-limit circuit, and NMOS pass transistor with built-in auto-discharge functionality. Its CMOS process enables low R_DS(ON) and sub-35µA quiescent current across –40°C to +85°C ambient.

It operates from 1.7V to 5.25V input, supports 150mA guaranteed output, and achieves dropout as low as 210mV at 2.95V output/150mA. The EN pin provides precise on/off control with 0.5V max logic-low threshold and 1.3V min logic-high threshold.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 2.95V ±1% - ensures stable bias for RF transceivers and camera ISPs without external feedback network.
Max Output Current	150mA - sufficient to power baseband processors, PMIC rails, or dual-band RF front-end modules.
PSRR	75dB at 1kHz - suppresses switching noise from DC-DC converters feeding adjacent digital blocks.
Output Noise	60µV_rms (10Hz–100kHz) - minimizes phase noise degradation in VCOs and ADC reference supplies.
Quiescent Current	35µA typical - extends battery life in always-on sensor nodes and standby-mode wireless adapters.
Dropout Voltage	210mV at 150mA - enables operation from single-cell Li-ion (3.0V min) down to 2.74V under full load.
Enable Threshold	V_EN(HI) ≥ 1.3V, V_EN(LO) ≤ 0.5V - compatible with 1.8V/3.3V GPIO without level-shifting.

Pinout & Package

SOT25 (5-pin, 2.9mm × 2.8mm × 1.3mm) package with exposed thermal pad. Pin 1 = VIN, Pin 2 = GND, Pin 3 = EN, Pin 4 = NC, Pin 5 = VOUT. NC pin recommended tied to GND for thermal enhancement.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (VIN)	Input power supply connection	Accepts 1.7–5.25V; requires 0.47µF ceramic decoupling capacitor placed adjacent to minimize input impedance.
Pin 2 (GND)	Power ground reference	Must connect directly to low-impedance PCB ground plane; serves as return path for VIN, VOUT, and EN currents.
Pin 3 (EN)	Active-high enable control	Pulling ≥1.3V enables regulation; ≤0.5V forces shutdown with 0.01µA standby current; floating prohibited.
Pin 4 (NC)	No internal connection	Not bonded; tie to GND to maximize copper area for thermal dissipation and EMI reduction.
Pin 5 (VOUT)	Regulated output terminal	Delivers 2.95V ±1% at up to 150mA; requires 0.47µF ceramic output capacitor placed within 2mm of pin.

Key Features

Feature	Design Value
Auto-discharge function	30Ω on-resistance between VOUT and GND during shutdown - clears residual charge from downstream capacitance in <1ms.
Low-noise regulation	60µV_rms integrated noise - avoids spectral contamination in RF receiver IF stages and high-resolution ADC references.
High PSRR at audio frequencies	75dB @ 1kHz - rejects ripple from buck converter switching at 500kHz–2MHz fundamental harmonics.
Thermal-enhanced SOT25	Exposed thermal pad with GND connection - reduces θ_JA by ~35°C/W vs. standard SOT23, enabling 150mA continuous at +70°C ambient.
Ultra-low I_Q	35µA typical - allows direct connection to coin-cell batteries in IoT endpoint sleep modes lasting >5 years.

Applications

RF Power Amplifier Bias

Camera Image Signal Processor

Use Scenario: Providing clean 2.95V supply to GaAs pHEMT driver stages in 5G NR sub-6GHz front-end modules.

IC Role / Device Role / Timing Role: Low-noise LDO delivering stable gate bias and drain supply with minimal PSK/EVM degradation.

Use Value: 75dB PSRR prevents PA efficiency collapse caused by DC-DC switching coupling; 60µV_rms noise avoids adjacent-channel leakage.

Use Scenario: Powering CIS analog signal chain (ADC, PGA, timing generator) in smartphone multi-camera systems.

IC Role / Device Role / Timing Role: Precision voltage source for image sensor analog core, requiring tight DC accuracy and low broadband noise.

Use Value: ±1% V_OUT tolerance maintains consistent pixel gain calibration; 60µV_rms noise preserves SNR in 12-bit+ imaging pipelines.

Wireless Adapter SoC Core Rail

Portable Media Player Audio DAC

Use Scenario: Supplying 2.95V core voltage to Wi-Fi 6/Bluetooth 5.3 combo ICs in USB-C dongles and earbud charging cases.

IC Role / Device Role / Timing Role: Primary LDO for digital baseband and RF PHY logic, enabled synchronously with host USB enumeration.

Use Value: 35µA I_Q minimizes quiescent drain during Bluetooth LE advertising; EN pin enables rapid wake/sleep cycling.

Use Scenario: Generating ultra-clean 2.95V reference for stereo audio DACs in lossless-format portable players.

IC Role / Device Role / Timing Role: Dedicated low-noise supply for DAC analog section and headphone amplifier bias networks.

Use Value: 60µV_rms noise floor ensures >110dB THD+N performance; 210mV dropout enables playback from depleted 3.2V LiPo cells.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MCP1700T-3002E/MB	3.0V fixed, 250mA, 6µA I_Q, no EN pin, SOT23-3	Lacks enable control and auto-discharge; lower noise (40µV_rms) but higher dropout (600mV @ 250mA)	Prefer when ultra-low I_Q dominates over EN flexibility and discharge requirement.
Torex XC6210B295MR-G	2.95V fixed, 150mA, ±2% accuracy, 25µA I_Q, SOT25, no discharge	Looser accuracy, no auto-discharge, slightly lower I_Q; PSRR 65dB @ 1kHz	Choose if cost sensitivity outweighs need for ±1% accuracy and fast VOUT discharge.

Compared with MCP1700T-3002E/MB and XC6210B295MR-G, the AP7315D-295W5-7 uniquely combines ±1% accuracy, 75dB PSRR, auto-discharge, and EN control in a thermally robust SOT25-making it optimal for RF-critical, battery-powered designs demanding both precision and dynamic responsiveness.

Availability

AP7315D-295W5-7 is available at Aetrix Electronics and suitable for RF power amplifiers, camera ISP rails, portable media player audio DACs, and wireless adapter SoC core supplies requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for AP7315D-295W5-7 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 devices, with design centers across Asia, Europe, and the US and manufacturing in ISO/TS 16949-certified facilities.

The AP7315 series targets portable and wireless applications where ultra-low noise, high PSRR, and compact packaging are essential-designed specifically for noise-sensitive RF, imaging, and audio subsystems in space-constrained consumer electronics.

FAQ

What is the maximum input voltage rating for AP7315D-295W5-7?

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, even if within absolute max limits. Operation above 5.25V is not characterized or guaranteed per datasheet specifications.

Does AP7315D-295W5-7 require an external discharge resistor?

No. The "D" suffix denotes integrated auto-discharge functionality via a 30Ω internal NMOS switch between VOUT and GND during shutdown. This eliminates need for external resistors while achieving faster VOUT decay (<1ms) than typical RC solutions, reducing board area and BOM count.

Can AP7315D-295W5-7 be used with ceramic capacitors smaller than 0.47µF?

The datasheet specifies 0.47µF as the minimum recommended ceramic output capacitance for guaranteed stability and transient response. Using smaller values risks oscillation or degraded load step recovery, especially at 150mA. Stability is validated only with ≥0.47µF X5R/X7R ceramics meeting ESR requirements.

How does the NC pin (Pin 4) affect thermal performance in SOT25?

Pin 4 is unconnected internally but occupies a thermal pad position. Tying it to GND expands the copper area connected to the exposed thermal pad, lowering junction-to-ambient thermal resistance by ~15–20°C/W. Leaving it floating forfeits this benefit and may increase thermal stress under sustained 150mA loads.

AP7315D-295W5-7 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):: 2.95V

Voltage - Output (Max):: -

Voltage Dropout (Max):: 0.29V @ 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-295W5-7 FAQ

1.How can I place an order for AP7315D-295W5-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for AP7315D-295W5-7 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-295W5-7 reliable?

The price and inventory of AP7315D-295W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7315D-295W5-7 is usually 5 days.

3.What payment methods are accepted for AP7315D-295W5-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7315D-295W5-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AP7315D-295W5-7?

AP7315D-295W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AP7315D-295W5-7 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-295W5-7?

For technical support, including AP7315D-295W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7315D-295W5-7 requirements.

6.How does Aetrix verify that AP7315D-295W5-7 is sourced from the original manufacturer or authorized distributors?

All AP7315D-295W5-7 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-295W5-7 meets industry standards.

7.What is the process for return or replacement of AP7315D-295W5-7?

All AP7315D-295W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7315D-295W5-7, 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-295W5-7 part is unused and in its original packaging.

Return procedure for AP7315D-295W5-7:

1.Submit a request within 90 days.

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

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