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

Diodes Incorporated AP7341D-295FS4-7

Name: AP7341D-295FS4-7
Brand: Diodes Incorporated
SKU: AP7341D-295FS4-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AP7341D-295FS4-7

Manufacturer:: Diodes Incorporated

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

Package:: 4-XDFN Exposed Pad

Datasheet:: AP7341D-295FS4-7.pdf

Description:: IC REG LINEAR 2.95V 300MA 4DFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

AP7341D-295FS4-7 from Diodes Incorporated is a 300mA, 2.95V fixed-output low-dropout linear regulator in X2-DFN1010-4 package, featuring ±1% output voltage accuracy, 75dB PSRR at 1kHz, 60µV_rms output noise (10Hz–100kHz), and 35µA quiescent current - optimized for RF supply and portable media applications requiring stable, low-noise bias.

For engineers reviewing the AP7341D-295FS4-7 datasheet, AP7341D-295FS4-7 pinout, AP7341D-295FS4-7 application, or AP7341D-295FS4-7 equivalent, key selection criteria include dropout voltage at 300mA (≤270mV @ V_OUT=2.95V), enable threshold compatibility (V_EN(H) ≥1.3V), thermal performance in 1.0mm × 1.0mm DFN, and built-in auto-discharge functionality.

Technical Context

The AP7341D-295FS4-7 employs a CMOS-based LDO architecture with integrated voltage reference, error amplifier, and current-limit circuitry. Its enable-controlled shutdown reduces standby current to 0.01µA, while the built-in discharge path (enabled by 'D' suffix) actively pulls V_OUT to GND when disabled - critical for sequencing-sensitive systems.

Designed for input voltages from 1.7V to 5.25V, it maintains regulation down to 270mV dropout at full 300mA load for 2.95V output. The 60µV_rms noise and 75dB ripple rejection at 1kHz support clean power delivery to RF transceivers and high-speed ADCs without external filtering.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 2.95V ±1% (25°C), ±1.5% (−40°C to +85°C) - ensures stable core/bias rail for 3.0V-tolerant RF ICs.
Max Output Current	300mA guaranteed - supports moderate-power peripherals like camera ISPs or Bluetooth SoCs.
PSRR	75dB at 1kHz - suppresses switching noise from adjacent DC/DC converters feeding shared input rails.
Output Noise	60µV_rms (10Hz–100kHz) - avoids phase noise degradation in local oscillators and PLLs.
Quiescent Current	35µA typical - extends battery life in always-on sensor nodes and standby modes.
Dropout Voltage	270mV max at 300mA (V_OUT = 2.95V) - enables operation from single-cell Li-ion (3.0V min) with margin.
Enable Threshold	V_EN(H) ≥1.3V, V_EN(L) ≤0.5V - compatible with 1.8V/3.3V GPIO without level-shifting.
Auto-Discharge	Enabled ('D' suffix) - discharges V_OUT via 30Ω internal NMOS when EN = low, preventing floating outputs.

Pinout & Package

X2-DFN1010-4 (1.0mm × 1.0mm, 0.4mm height) with exposed thermal pad - requires PCB copper pour connected to GND for optimal thermal dissipation (θ_JA ≈ 220°C/W on JEDEC High-K board).

Pin/Terminal	Circuit Role	Design Meaning
PIN1: VOUT	Regulated Power Output	Delivers 2.95V to load; must be decoupled with ≥1.0µF ceramic capacitor placed adjacent to pin.
PIN2: GND	Power Ground Reference	Primary return path for load current and internal bias; connects to thermal pad for heat sinking.
PIN3: EN	Active-High Enable Control	Drives regulator ON/OFF; must not float - tie to VIN if unused, or interface directly with 1.8V/3.3V logic.
PIN4: VIN	Unregulated Input Supply	Accepts 1.7V–5.25V; requires ≥0.47µF ceramic decoupling capacitor placed within 2mm of pin.

Key Features

Feature	Design Value
Ultra-low noise output	60µV_rms (10Hz–100kHz) - eliminates need for post-LDO LC filtering in sensitive analog signal chains.
High PSRR at audio frequencies	75dB @ 1kHz - rejects ripple from buck converters operating at 500kHz–2MHz with 2× switching harmonics.
Built-in auto-discharge	30Ω NMOS discharge path activated at EN = low - ensures rapid V_OUT decay for safe power sequencing.
Low-quiescent-current shutdown	0.01µA I_STANDBY - reduces system leakage in battery-backed real-time clocks and wake-on-event circuits.
Wide input voltage range	1.7V–5.25V - supports direct connection to single-cell Li-ion, USB VBUS, or multi-rail PMIC outputs.
±1% output accuracy	Guaranteed over line/load/temperature - simplifies compliance testing for 3.0V I/O interfaces with 10% tolerance margins.

Applications

RF Power Amplifier Bias

Camera Image Signal Processor

Use Scenario: Providing clean, sequenced bias to GaAs pHEMT PA stages in 4G/5G front-end modules.

IC Role / Device Role / Timing Role: Low-noise, enable-controlled LDO delivering stable 2.95V to PA drain supply with fast turn-on/turn-off timing.

Use Value: 60µV_rms noise prevents AM-to-PM distortion; auto-discharge ensures PA gate voltage collapses before baseband controller resets.

Use Scenario: Powering CIS/ISP cores in smartphone camera modules where EMI sensitivity impacts image SNR.

IC Role / Device Role / Timing Role: Primary 2.95V analog supply for ISP ADCs and PLLs, synchronized to sensor frame timing via EN pin.

Use Value: 75dB PSRR isolates ISP from noisy SoC VDD rails; ±1% accuracy maintains ADC reference stability across temperature.

Wireless Audio Codec

Portable Media Player System-on-Chip

Use Scenario: Supplying low-noise 2.95V to Bluetooth audio codec DACs and headphone amplifiers.

IC Role / Device Role / Timing Role: Dedicated LDO for audio analog section, enabled only during playback to minimize idle power.

Use Value: 35µA quiescent current extends playback time; 270mV dropout allows operation from depleted 3.2V battery cells.

Use Scenario: Regulating 2.95V for NAND flash I/O and SD card interface in handheld media players.

IC Role / Device Role / Timing Role: Secondary LDO supporting memory subsystem, controlled by SoC power manager via EN pin.

Use Value: Auto-discharge prevents data corruption during hot-plug SD card removal; 300mA capacity handles burst write currents.

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	250mA output, 3.0V fixed, no auto-discharge, 6µA IQ	Lacks discharge path; lower current rating limits use in burst-load applications.	Select when ultra-low IQ dominates over discharge requirement and load <250mA.
Torex XC6210B295MR-G	300mA, 2.95V, 25µA IQ, no discharge, 65dB PSRR @1kHz	Lower PSRR and no discharge; smaller 0.8mm × 0.8mm DFN package.	Choose for space-constrained designs where 10dB PSRR margin is acceptable and sequencing is handled externally.

Compared with MCP1700T-3002E/MB and XC6210B295MR-G, the AP7341D-295FS4-7 uniquely combines 300mA capability, 75dB PSRR, 60µV_rms noise, and integrated discharge - making it the only option meeting simultaneous RF noise, sequencing, and current requirements in compact portable designs.

Availability

AP7341D-295FS4-7 is available at Aetrix Electronics and suitable for RF power amplifier bias, camera ISP supply, wireless audio codec regulation, and portable media player SoC I/O rail applications requiring stable component supply, consistent parametric performance, and long-term production continuity.

Supply support for AP7341D-295FS4-7 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 emphasis on power management, signal integrity, and protection solutions for consumer, industrial, and communications markets.

The AP7341 series belongs to Diodes' high-PSRR, low-noise LDO product line, engineered specifically for noise-sensitive portable electronics where clean, sequenced, and efficient voltage regulation is critical to system-level RF and audio performance.

FAQ

What is the maximum allowable input voltage for AP7341D-295FS4-7?

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 maximum ratings. Operation above 5.25V voids parametric guarantees including PSRR, noise, and dropout performance.

Does AP7341D-295FS4-7 require an external discharge resistor?

No. The 'D' suffix denotes built-in auto-discharge functionality: when EN is pulled low, an internal 30Ω NMOS actively discharges VOUT to GND. No external resistor is needed, simplifying layout and eliminating BOM cost - unlike non-D variants such as AP7341-295FS4-7.

Can AP7341D-295FS4-7 operate with ceramic output capacitors less than 1.0µF?

Yes, it is stable with ceramic capacitors as low as 0.47µF, but Diodes specifies 1.0µF as the recommended minimum for optimal transient response and PSRR across temperature. Using <1.0µF may reduce load-step immunity and increase output voltage deviation under dynamic current changes.

How does thermal performance change if the thermal pad is left unconnected?

Leaving the thermal pad floating increases junction-to-ambient thermal resistance (θ_JA) by ~80°C/W versus a properly soldered, GND-connected pad - risking thermal shutdown above 150mA at +85°C ambient. Diodes' datasheet mandates connecting the pad to a ≥25mm² GND copper area for rated 300mA operation.

AP7341D-295FS4-7 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: 4-XDFN Exposed Pad

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):: 0.27V @ 150mA

Current - Output:: 300mA

Current - Quiescent (Iq):: 50 µA

Current - Supply (Max):: -

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:: X2-DFN1010-4

AP7341D-295FS4-7 FAQ

1.How can I place an order for AP7341D-295FS4-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for AP7341D-295FS4-7 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 AP7341D-295FS4-7 reliable?

The price and inventory of AP7341D-295FS4-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7341D-295FS4-7 is usually 5 days.

3.What payment methods are accepted for AP7341D-295FS4-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7341D-295FS4-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AP7341D-295FS4-7?

AP7341D-295FS4-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AP7341D-295FS4-7 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 AP7341D-295FS4-7?

For technical support, including AP7341D-295FS4-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7341D-295FS4-7 requirements.

6.How does Aetrix verify that AP7341D-295FS4-7 is sourced from the original manufacturer or authorized distributors?

All AP7341D-295FS4-7 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 AP7341D-295FS4-7 meets industry standards.

7.What is the process for return or replacement of AP7341D-295FS4-7?

All AP7341D-295FS4-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7341D-295FS4-7, 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 AP7341D-295FS4-7 part is unused and in its original packaging.

Return procedure for AP7341D-295FS4-7:

1.Submit a request within 90 days.

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

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