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Diodes Incorporated AP7341D-30FS4-7
- Part No.:
- AP7341D-30FS4-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
AP7341D-30FS4-7.pdf
- Description:
- IC REG LINEAR 3V 300MA 4DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,920
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Product details
Overview
AP7341D-30FS4-7 from Diodes Incorporated is a 3.0V fixed-output, 300mA low-dropout linear regulator with ±1% output voltage accuracy, 75dB PSRR at 1kHz, 60µVrms output noise (10Hz–100kHz), and 35µA quiescent current - designed for RF supply rails in compact portable devices such as wireless adapters and camera modules.
For engineers reviewing the AP7341D-30FS4-7 datasheet, AP7341D-30FS4-7 pinout, AP7341D-30FS4-7 application, or AP7341D-30FS4-7 equivalent, key selection criteria include dropout voltage at 300mA (≤400mV), enable threshold compatibility (EN high ≥1.3V), thermal performance in X2-DFN1010-4, and discharge functionality for fast VOUT decay during shutdown.
Technical Context
The AP7341D-30FS4-7 integrates a CMOS-based error amplifier, precision voltage reference, current-limit circuit, and active pull-down discharge path activated during EN=low. Its architecture supports stable operation with 1µF ceramic output capacitors and maintains regulation across 1.7V–5.25V input range.
It delivers 3.0V output with ±1.5% accuracy over –40°C to +85°C, achieves 0.30V typical dropout at 300mA/3.0V, and provides 0.01µA standby current when disabled - enabling ultra-low-power sequencing in battery-powered RF subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0V ±1% at 25°C; ±1.5% over full temperature range - ensures stable bias for sensitive RF ICs without external feedback. |
| Max Output Current | 300mA guaranteed - sufficient to power dual-band RF transceivers or image sensor analog cores. |
| PSRR | 75dB at 1kHz - suppresses switching noise from adjacent DC-DC converters feeding noisy system rails. |
| Output Noise | 60µVrms (10Hz–100kHz) - preserves signal integrity in low-noise amplifier (LNA) and mixer supply domains. |
| Quiescent Current | 35µA typical - extends battery life in always-on wireless adapter standby modes. |
| Dropout Voltage | 0.30V max at 300mA/3.0V output - enables operation from single-cell Li-ion (3.0V min under load) or 3.3V system rails. |
| Enable Threshold | VEN(H) ≥1.3V, VEN(L) ≤0.5V - compatible with 1.8V/3.3V GPIO control without level-shifting. |
| Discharge Function | Active N-channel auto-discharge (30Ω typical) - clears output capacitance within microseconds after shutdown, preventing latch-up in downstream logic. |
Pinout & Package
The AP7341D-30FS4-7 uses the X2-DFN1010-4 package (1.0mm × 1.0mm, 0.4mm height), featuring an exposed thermal pad for enhanced PCB heat dissipation. Recommended layout uses large copper area connected to GND under the thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PIN1: VOUT | Regulated Power Output | Delivers clean 3.0V to load; requires local 1µF ceramic capacitor placed <1mm from pin to minimize impedance. |
| PIN2: GND | Power Ground Reference | Primary return path for output current and internal bias; must connect directly to low-impedance ground plane. |
| PIN3: EN | Logic-Controlled Enable Input | Active-high digital control: >1.3V enables regulation; <0.5V disables output and activates discharge path. |
| PIN4: VIN | Unregulated Input Supply | Accepts 1.7V–5.25V input; requires 0.47µF ceramic decoupling capacitor placed adjacent to pin. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low Quiescent Current | 35µA typical - reduces no-load power loss by >50% vs. legacy LDOs, critical for battery runtime in portable media players. |
| High PSRR at 1kHz | 75dB - rejects ripple from buck converter switching frequencies, eliminating need for additional LC filtering in RF supply chains. |
| Integrated Output Discharge | 30Ω on-resistance - discharges 10µF load in <300µs, preventing false wake-up or latch-up in multi-rail systems during power sequencing. |
| Tight Output Accuracy | ±1% at 25°C, ±1.5% over –40°C to +85°C - ensures consistent RF front-end gain and ADC reference stability across environmental conditions. |
| Low-Noise Ceramic-Compatible Design | Stable with 1µF X5R/X7R ceramics - eliminates tantalum or electrolytic capacitors, reducing BOM cost and board area in space-constrained camera modules. |
Applications
| Smartphone Camera Module | Wi-Fi/Bluetooth Adapter |
|---|---|
|
Use Scenario: Powers CIS analog core and PLL in autofocus-enabled smartphone cameras requiring clean, sequenced 3.0V bias. IC Role / Device Role / Timing Role: Primary analog supply LDO with fast enable/disable and discharge for pixel clock domain isolation. Use Value: 60µVrms noise prevents fixed-pattern noise in raw image data; ±1% accuracy maintains consistent analog gain calibration. |
Use Scenario: Supplies 3.0V to RF transceiver ICs in USB Wi-Fi dongles and Bluetooth audio peripherals. IC Role / Device Role / Timing Role: Low-noise post-regulator for PA bias and VCO supply, synchronized to host USB suspend/resume via EN pin. Use Value: 75dB PSRR blocks 2.4GHz harmonics from digital baseband; 35µA IQ extends battery life in portable hotspot mode. |
| Portable Media Player Audio Codec | Industrial Wireless Sensor Node |
|
Use Scenario: Provides 3.0V reference and analog supply to stereo audio DAC/ADC in flash-based MP3 players. IC Role / Device Role / Timing Role: Precision voltage source for audio bandgap and op-amp rails, enabled only during playback. Use Value: ±1% output tolerance ensures THD+N remains <0.005%; discharge function prevents pop/click during track transitions. |
Use Scenario: Powers sub-GHz RF SoC and MEMS sensor interface in battery-operated LPWAN edge nodes. IC Role / Device Role / Timing Role: Always-on LDO for RTC and wake-up circuitry, with EN controlled by microcontroller sleep state. Use Value: 0.01µA shutdown current minimizes annual self-discharge; 0.30V dropout enables operation down to 3.0V battery voltage. |
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 max output, no discharge function, 6µVrms noise (lower), 6.5µA IQ (lower) | Lacks active discharge; unsuitable where fast VOUT decay is required for sequencing | Select when ultra-low IQ dominates over discharge need and load current ≤250mA |
| Torex XC6219B302MR-G | 300mA output, ±2% accuracy, no discharge, 40µA IQ, 70dB PSRR at 1kHz | Higher output tolerance impacts RF gain consistency; no discharge limits use in multi-rail power-down schemes | Choose for cost-sensitive designs where ±2% VOUT is acceptable and discharge is unused |
Compared with MCP1700T-3002E/MB and XC6219B302MR-G, the AP7341D-30FS4-7 uniquely combines 300mA capability, ±1% accuracy, integrated discharge, and 75dB PSRR - making it optimal for RF and imaging applications demanding tight regulation, noise immunity, and controlled power sequencing.
Availability
AP7341D-30FS4-7 is available at Aetrix Electronics and suitable for wireless communication modules, camera subsystems, and portable media players requiring stable component supply with lead-free, halogen-free compliance.
Supply support for AP7341D-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 semiconductor manufacturer specializing in discrete, analog, and mixed-signal solutions for power management, signal integrity, and connectivity applications.
The AP7341 series belongs to Diodes' high-PSRR, low-noise LDO product line, engineered specifically for noise-sensitive analog and RF circuits in portable consumer electronics.
FAQ
What is the maximum allowable input voltage for AP7341D-30FS4-7?
The absolute maximum input voltage is 6.0V, but recommended operating range is 1.7V to 5.25V. Exceeding 5.25V risks permanent damage per Absolute Maximum Ratings. Operation above 5.25V violates design specifications and may degrade PSRR or cause thermal runaway, especially at high ambient temperatures.
Does AP7341D-30FS4-7 require an external output capacitor, and what type is recommended?
Yes, a minimum 1.0µF ceramic capacitor is required between VOUT and GND for stability and transient response. X5R or X7R dielectrics are recommended due to low ESR and stable capacitance over temperature and DC bias. Tantalum or aluminum electrolytics are not recommended - they increase ESR and risk instability.
How does the discharge function operate, and when is it active?
The discharge path activates only when EN is driven low (<0.5V), connecting VOUT to GND through an internal ~30Ω N-channel MOSFET. It remains inactive during normal regulation (EN high) and does not affect output impedance or load regulation. This feature ensures rapid VOUT decay to prevent back-powering or false triggering in downstream logic.
Can AP7341D-30FS4-7 be used with input voltages below 3.0V?
Yes - the device operates down to 1.7V input, with dropout voltage of 0.30V max at 300mA. At 2.8V input, it sustains 3.0V output only up to ~200mA; full 300mA requires ≥3.3V input. For single-cell Li-ion applications, ensure minimum battery voltage (3.0V under load) meets dropout margin for target load current.
AP7341D-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
AP7341D-30FS4-7 FAQ
1.How can I place an order for AP7341D-30FS4-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7341D-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 AP7341D-30FS4-7 reliable?
The price and inventory of AP7341D-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 AP7341D-30FS4-7 is usually 5 days.
3.What payment methods are accepted for AP7341D-30FS4-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7341D-30FS4-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7341D-30FS4-7?
AP7341D-30FS4-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7341D-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 AP7341D-30FS4-7?
For technical support, including AP7341D-30FS4-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7341D-30FS4-7 requirements.
6.How does Aetrix verify that AP7341D-30FS4-7 is sourced from the original manufacturer or authorized distributors?
All AP7341D-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 AP7341D-30FS4-7 meets industry standards.
7.What is the process for return or replacement of AP7341D-30FS4-7?
All AP7341D-30FS4-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7341D-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 AP7341D-30FS4-7 part is unused and in its original packaging.
Return procedure for AP7341D-30FS4-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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