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

Diodes Incorporated AP7341-295FS4-7

Name: AP7341-295FS4-7
Brand: Diodes Incorporated
SKU: AP7341-295FS4-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AP7341-295FS4-7

Manufacturer:: Diodes Incorporated

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

Package:: 4-XDFN Exposed Pad

Datasheet:: AP7341-295FS4-7.pdf

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

Quantity:: RFQ Add To RFQ list

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Product details

Overview

AP7341-295FS4-7 from Diodes Incorporated is a 300mA, 2.95V fixed-output low-dropout linear regulator featuring ±1% output voltage accuracy, 75dB PSRR at 1kHz, 60µV_rms output noise (10Hz–100kHz), and ultra-low 35µA quiescent current - designed for RF supply rails in compact portable communication devices.

For engineers reviewing the AP7341-295FS4-7 datasheet, AP7341-295FS4-7 pinout, AP7341-295FS4-7 application, or AP7341-295FS4-7 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 X2-DFN1010-4, and discharge capability (non-discharge version per ordering code).

Technical Context

The AP7341-295FS4-7 implements a CMOS-based LDO architecture with integrated voltage reference, error amplifier, and current-limit circuitry. Its enable input (EN) provides precise on/off control with defined high/low thresholds (V_EN(H) ≥1.3V, V_EN(L) ≤0.5V) and sub-1µA standby leakage.

It delivers stable 2.95V output across −40°C to +85°C ambient, maintaining ±1.5% total accuracy over line, load, and temperature. Dropout voltage is specified at 210–270mV depending on output current (150–300mA) and junction temperature.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 2.95V ±1% at +25°C; ±1.5% over full temperature and load range - ensures stable bias for RF power amplifiers and analog sensor interfaces.
Max Output Current	300mA guaranteed - supports moderate-power subsystems such as camera ISPs or wireless baseband ICs without thermal derating in typical PCB layouts.
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 impact in RF local oscillator chains and ADC reference supplies.
Quiescent Current	35µA typical - enables multi-day battery life in always-on sensor nodes and low-duty-cycle IoT endpoints.
Dropout Voltage	270mV max at 300mA and V_OUT=2.95V - allows operation from single-cell Li-ion (3.0V min) or 3.3V rail with margin.
Enable Threshold	V_EN(H) ≥1.3V, V_EN(L) ≤0.5V - compatible with 1.8V/3.3V GPIOs without level-shifting; prevents false turn-on during power ramp.

Pinout & Package

Packaged in a 1.0mm × 1.0mm X2-DFN1010-4 with exposed thermal pad (not electrically connected), optimized for minimal PCB area and high-density portable designs.

Pin/Terminal	Circuit Role	Design Meaning
PIN1 - VOUT	Regulated Power Output	Delivers clean 2.95V; requires low-ESR ceramic capacitor (≥1.0µF) placed within 2mm of pin for stability and transient response.
PIN2 - GND	Analog & Power Ground Reference	Must connect directly to solid ground plane; shared return path for VIN, VOUT, and EN to minimize noise coupling.
PIN3 - EN	Digital Enable Control Input	Active-high logic input; must not float - tie to VIN if always-on, or drive with MCU GPIO meeting V_EN(H)/V_EN(L) specs.
PIN4 - VIN	Unregulated Input Supply	Accepts 1.7V–5.25V; requires 0.47µF ceramic decoupling capacitor placed adjacent to pin to suppress supply glitches.

Key Features

Feature	Design Value
High PSRR	75dB @ 1kHz enables clean power delivery in mixed-signal SoC systems sharing noisy switcher rails.
Ultra-Low Noise	60µV_rms (10Hz–100kHz) meets stringent requirements for RF transceiver VCO and LNA biasing.
Low Quiescent Current	35µA typical allows >1-year battery life in coin-cell-powered wearables with periodic wake-up cycles.
Wide Input Range	1.7V–5.25V supports direct connection to single-cell Li-ion, USB VBUS, or intermediate buck outputs.
Thermal Efficiency	X2-DFN1010-4 package with thermal pad enables 400mW power dissipation at +85°C ambient with proper copper area.

Applications

RF Power Amplifier Bias

Camera Image Signal Processor (ISP)

Use Scenario: Providing stable 2.95V bias to GaAs pHEMT or SiGe HBT RF power amplifiers in 4G/LTE front-end modules.

IC Role / Device Role / Timing Role: Low-noise, high-PSRR LDO delivering ripple-free V_{CC_PA} independent of PA current surges and PAON switching transients.

Use Value: Reduces AM-to-PM distortion and improves EVM by suppressing supply-induced phase noise - verified via 60µV_rms noise spec and 75dB PSRR.

Use Scenario: Powering analog front-end and ADC sections of mobile camera ISPs requiring low-noise, precision voltage rails.

IC Role / Device Role / Timing Role: Fixed 2.95V LDO supplying critical analog blocks where supply ripple directly impacts image SNR and color fidelity.

Use Value: Enables >72dB SNR in 12-bit ISP ADCs by limiting supply-induced noise contribution to <0.5 LSB RMS.

Wireless Communication Baseband

Portable Media Player Audio Codec

Use Scenario: Regulating core voltage for LTE/Wi-Fi baseband processors operating in burst-mode data transmission.

IC Role / Device Role / Timing Role: High-transient-response LDO maintaining 2.95V under 0–300mA dynamic load steps with <100µs recovery time.

Use Value: Prevents baseband reset or packet loss during rapid TX/RX transitions - validated by load transient plots in DS36523 Rev.5-2.

Use Scenario: Supplying headphone amplifier and DAC stages in battery-powered media players with strict THD+N requirements.

IC Role / Device Role / Timing Role: Low-noise, low-quiescent-current LDO powering Class AB headphone drivers and sigma-delta modulators.

Use Value: Achieves <0.002% THD+N at 1kHz by eliminating supply-coupled distortion - enabled by 60µV_rms noise and ±1% accuracy.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MCP1700-29E/TO	250mA max output, 6µV_rms noise (10Hz–100kHz), no enable pin, TO-92 package	Lacks enable control and thermal performance for high-density RF modules; suitable only for low-current, non-switching applications	Select only when enable functionality and DFN footprint are unnecessary and board space permits through-hole mounting.
Torex XC6206P292MR-G	300mA output, 2.9V nominal (±2%), 40µV_rms noise, SOT-25 package, no thermal pad	Lower noise but looser accuracy and larger footprint; lacks thermal pad for sustained 300mA operation at elevated ambient	Prefer for ultra-low-noise audio bias where 2.9V vs. 2.95V tolerance is acceptable and thermal headroom is ample.

Compared with MCP1700-29E/TO and XC6206P292MR-G, the AP7341-295FS4-7 uniquely balances 2.95V precision, 300mA capability in 1.0mm², enable control, and thermal robustness - making it optimal for space-constrained RF and imaging subsystems demanding both accuracy and dynamic performance.

Availability

AP7341-295FS4-7 is available at Aetrix Electronics and suitable for RF power amplifier bias, camera ISP analog supply, wireless baseband core regulation, and portable media player audio codec applications requiring stable component supply, long-term manufacturability, and RoHS-compliant sourcing.

Supply support for AP7341-295FS4-7 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 manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability 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 RF and imaging subsystems in battery-powered portable electronics where size, efficiency, and signal purity are critical.

FAQ

What is the maximum allowable input voltage for AP7341-295FS4-7?

The absolute maximum input voltage is 6.0V, but the recommended operating range is 1.7V to 5.25V. Exceeding 5.25V risks violating safe operating area limits and may trigger internal protection or cause permanent damage. Operation above 5.25V is not characterized or guaranteed per DS36523 Rev.5-2.

Does AP7341-295FS4-7 include an output discharge function?

No - the "-295FS4-7" suffix indicates the non-discharge version. It lacks an internal pull-down transistor on VOUT during shutdown. If rapid output discharge is required, the discharge-enabled variant AP7341D-295FS4-7 must be selected instead, as confirmed in the Ordering Information table on page 11 of DS36523.

What is the minimum output capacitance required for stability?

A minimum 1.0µF ceramic capacitor is required at VOUT for guaranteed stability across all operating conditions. The datasheet specifies that the device is stable with "very small ceramic output capacitors," and Figure 1 shows COUT = 1.0µF. Lower values risk oscillation under load transients, especially with higher ESR or temperature extremes.

How does thermal performance change with PCB copper area under the thermal pad?

Per the datasheet's JEDEC High-K board definition and layout guidance, connecting the thermal pad to a ≥25mm² copper pour tied to GND reduces θ_JA by ~30°C/W versus no copper. Without thermal pad connection, power dissipation is limited to ~200mW at +85°C ambient; with full thermal relief, 400mW is achievable - enabling full 300mA operation in compact layouts.

AP7341-295FS4-7 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

AP7341-295FS4-7 FAQ

1.How can I place an order for AP7341-295FS4-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for AP7341-295FS4-7 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 AP7341-295FS4-7 reliable?

The price and inventory of AP7341-295FS4-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7341-295FS4-7 is usually 5 days.

3.What payment methods are accepted for AP7341-295FS4-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7341-295FS4-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AP7341-295FS4-7?

AP7341-295FS4-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AP7341-295FS4-7 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 AP7341-295FS4-7?

For technical support, including AP7341-295FS4-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7341-295FS4-7 requirements.

6.How does Aetrix verify that AP7341-295FS4-7 is sourced from the original manufacturer or authorized distributors?

All AP7341-295FS4-7 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 AP7341-295FS4-7 meets industry standards.

7.What is the process for return or replacement of AP7341-295FS4-7?

All AP7341-295FS4-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7341-295FS4-7, 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 AP7341-295FS4-7 part is unused and in its original packaging.

Return procedure for AP7341-295FS4-7:

1.Submit a request within 90 days.

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

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