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Diodes Incorporated AP7341-30FS4-7
- Part No.:
- AP7341-30FS4-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
AP7341-30FS4-7.pdf
- Description:
- IC REG LINEAR 3V 300MA 4DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,872
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Product details
Overview
AP7341-30FS4-7 from Diodes Incorporated is a 300mA, 3.0V fixed-output low-dropout linear regulator in X2-DFN1010-4 package, featuring ±1% output voltage accuracy, 75dB PSRR at 1kHz, 60µVrms output noise (10Hz–100kHz), and 35µA quiescent current. It delivers high PSRR and ultra-low noise for RF supply rails in portable wireless communication devices.
For engineers reviewing the AP7341-30FS4-7 datasheet, AP7341-30FS4-7 pinout, AP7341-30FS4-7 application, or AP7341-30FS4-7 equivalent, key selection criteria include dropout voltage at 300mA (≤400mV @ VOUT=3.0V), enable logic thresholds (VEN(H) ≥1.3V, VEN(L) ≤0.5V), thermal performance with exposed pad, and compatibility with 1µF ceramic input/output capacitors.
Technical Context
The AP7341-30FS4-7 employs a CMOS-based LDO architecture with integrated voltage reference, error amplifier, and current-limit circuitry. Its enable input provides precise on/off control without floating-state risk, and the internal resistor network fixes VOUT at 3.0V with ±1% accuracy over −40°C to +85°C.
Designed for low-noise biasing, it achieves 60µVrms output noise and 75dB ripple rejection at 1kHz while maintaining stability with 1.0µF ceramic CIN/COUT. The device includes fold-back short-circuit protection (≈55mA) and auto-discharge functionality is omitted in this non-D variant (per ordering code "AP7341-30FS4-7", not "AP7341D-30FS4-7").
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0V ±1% at TA = +25°C; ±1.5% over −40°C to +85°C - ensures stable core/bias rail for 3.0V logic or RF ICs |
| Max Output Current | 300mA guaranteed - supports moderate-power subsystems like Wi-Fi/BT transceivers or camera ISPs |
| PSRR | 75dB at 1kHz - suppresses switching noise from adjacent DC/DC converters feeding noisy power domains |
| Output Noise | 60µVrms (10Hz–100kHz) - preserves signal integrity in sensitive analog/RF stages such as LNA or VCO supplies |
| Quiescent Current | 35µA typical - enables always-on operation in battery-powered standby modes without significant drain |
| Dropout Voltage | 300mV max at 300mA (VOUT = 3.0V) - allows operation from single-cell Li-ion (3.0V min) or 3.3V rail with margin |
| Enable Thresholds | VEN(H) ≥1.3V, VEN(L) ≤0.5V - compatible with 1.8V/3.3V GPIO without level-shifting |
Pinout & Package
AP7341-30FS4-7 uses the X2-DFN1010-4 (1.0mm × 1.0mm, 0.4mm height) package with wettable flank leads and an exposed thermal pad. PCB layout requires connection of the thermal pad to GND plane for optimal thermal dissipation (θJA ≈ 220°C/W on JEDEC High-K board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PIN1 - VOUT | Regulated Power Output | Delivers clean 3.0V to load; must be decoupled with 1.0µF ceramic capacitor placed adjacent to pin |
| PIN2 - GND | Analog/Digital Ground Reference | Primary return path for output current and internal circuitry; connects directly to thermal pad and system ground plane |
| PIN3 - EN | Active-High Enable Control | Drives regulator ON when ≥1.3V, OFF when ≤0.5V; must never float - tie to VIN if always-on operation required |
| PIN4 - VIN | Unregulated Input Supply | Accepts 1.7V–5.25V input; requires 0.47µF ceramic capacitor between VIN and GND, placed within 2mm of pin |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low Output Noise | 60µVrms (10Hz–100kHz) - minimizes phase noise in VCOs and distortion in ADC/DAC reference paths |
| High PSRR at Low Frequencies | 75dB @ 1kHz - rejects ripple from buck converter switching frequencies and their harmonics |
| Low Quiescent Current | 35µA typical - extends battery life in always-on sensor nodes or IoT edge devices |
| Tight Output Accuracy | ±1% @ +25°C, ±1.5% over full temperature range - ensures reliable operation of 3.0V I/O interfaces and memory |
| Small Footprint Package | X2-DFN1010-4 (1.0mm × 1.0mm) - enables dense PCB layouts in space-constrained mobile and wearable designs |
Applications
| Smartphone RF Front-End | Portable Camera Module |
|---|---|
|
Use Scenario: Powers LNA, mixer, and PA bias rails in LTE/Wi-Fi front-end modules where supply noise directly impacts EVM and ACLR. IC Role / Device Role: Ultra-low-noise 3.0V LDO supplying critical RF analog blocks. Use Value: 60µVrms noise and 75dB PSRR prevent degradation of receiver sensitivity and transmitter spectral purity. |
Use Scenario: Supplies image signal processor (ISP) core and CIS analog front-end in compact smartphone cameras. IC Role / Device Role: Precision 3.0V regulator for noise-sensitive analog pixel processing and ADC reference. Use Value: ±1% output accuracy maintains consistent exposure/gain calibration; low dropout enables use from shared 3.3V system rail. |
| Wireless Communication Adapter | Portable Media Player Audio Codec |
|
Use Scenario: Provides clean 3.0V supply to Bluetooth 5.0 or Zigbee SoCs in USB dongles and peripheral adapters. IC Role / Device Role: Enable-controlled LDO for selective power gating of radio subsystems during sleep. Use Value: 35µA quiescent current and fast enable response (<10µs) minimize standby power and wake latency. |
Use Scenario: Powers DAC, headphone amplifier, and audio codec analog sections in battery-powered media players. IC Role / Device Role: Low-noise 3.0V source for high-fidelity audio signal chain requiring minimal THD+N. Use Value: 60µVrms noise avoids audible hiss; 300mA output supports dynamic peak currents during bass transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-3002E/TO | 300mA, 3.0V, SOT-23-5; 6µA IQ but only 60dB PSRR @ 1kHz and 120µVrms noise | Lower noise/PSRR performance limits use in RF or high-fidelity audio | Select when ultra-low IQ dominates over noise/PSRR requirements and SOT-23 layout is preferred |
| Torex XC6206P302MR-G | 300mA, 3.0V, SOT-25; 15µA IQ, 70dB PSRR @ 1kHz, 80µVrms noise, no enable pin | Lacks enable control and has higher noise - unsuitable for power-gated or noise-critical systems | Choose only for simple always-on 3.0V rails where footprint and cost outweigh enable and noise needs |
Compared with MCP1700-3002E/TO and XC6206P302MR-G, the AP7341-30FS4-7 uniquely balances 35µA IQ, 75dB PSRR, and 60µVrms noise in a 1.0mm² DFN, making it optimal for space-constrained, noise-sensitive, and enable-controlled portable RF/audio applications.
Availability
AP7341-30FS4-7 is available at Aetrix Electronics and suitable for smartphone RF supply, portable camera modules, wireless communication adapters, and portable media player audio codecs requiring stable component supply across production lifecycles.
Supply support for AP7341-30FS4-7 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-performance power management, signal integrity, and protection solutions for consumer, industrial, and communications markets.
The AP7341 belongs to Diodes' high-PSRR, low-noise LDO family designed specifically for noise-sensitive analog and RF power rails in portable and battery-operated equipment.
FAQ
What is the maximum input voltage for AP7341-30FS4-7?
The absolute maximum input voltage is 6.0V, but the recommended operating range is 1.7V to 5.25V. Operation above 5.25V risks permanent damage, while below 1.7V prevents regulation at 3.0V output due to dropout constraints - minimum VIN = VOUT + dropout ≈ 3.3V at 300mA.
Does AP7341-30FS4-7 include output auto-discharge?
No. The part number suffix "AP7341-30FS4-7" (without "D") denotes the non-discharge version. When disabled via EN pin, the output remains floating and does not actively discharge the load capacitance - external bleed resistors may be needed in systems requiring rapid VOUT decay.
What capacitor values are required for stable operation?
A minimum 0.47µF ceramic capacitor is required between VIN and GND, and a 1.0µF ceramic capacitor is recommended between VOUT and GND. Both must be placed within 2mm of their respective pins; low-ESR ceramics (X5R/X7R) are mandatory - tantalum or aluminum electrolytics are not supported.
How does thermal performance depend on PCB layout?
Thermal resistance θJA drops from ~220°C/W (JEDEC High-K board) to <100°C/W with a 100mm² copper pour connected to the exposed thermal pad and tied to GND. Insufficient copper area or missing thermal via array causes junction temperature rise, triggering thermal shutdown above 150°C under sustained 300mA load.
AP7341-30FS4-7 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):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.65V @ 300mA
- 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
AP7341-30FS4-7 FAQ
1.How can I place an order for AP7341-30FS4-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7341-30FS4-7 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 AP7341-30FS4-7 reliable?
The price and inventory of AP7341-30FS4-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7341-30FS4-7 is usually 5 days.
3.What payment methods are accepted for AP7341-30FS4-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7341-30FS4-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7341-30FS4-7?
AP7341-30FS4-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7341-30FS4-7 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 AP7341-30FS4-7?
For technical support, including AP7341-30FS4-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7341-30FS4-7 requirements.
6.How does Aetrix verify that AP7341-30FS4-7 is sourced from the original manufacturer or authorized distributors?
All AP7341-30FS4-7 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 AP7341-30FS4-7 meets industry standards.
7.What is the process for return or replacement of AP7341-30FS4-7?
All AP7341-30FS4-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7341-30FS4-7, 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 AP7341-30FS4-7 part is unused and in its original packaging.
Return procedure for AP7341-30FS4-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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