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Diodes Incorporated AP7341-25FS4-7
- Part No.:
- AP7341-25FS4-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
AP7341-25FS4-7.pdf
- Description:
- IC REG LINEAR 2.5V 300MA 4DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,284
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Product details
Overview
AP7341-25FS4-7 from Diodes Incorporated is a 2.5V 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 electronics.
For engineers reviewing the AP7341-25FS4-7 datasheet, AP7341-25FS4-7 pinout, AP7341-25FS4-7 application, or AP7341-25FS4-7 equivalent, key selection criteria include dropout voltage at 300mA (0.30–0.40V), enable threshold compatibility (VEN(H) ≥1.3V), thermal performance in X2-DFN1010-4, and stability with 1.0µF ceramic output capacitance.
Technical Context
The AP7341-25FS4-7 employs a CMOS-based architecture with integrated voltage reference, error amplifier, and current-limit circuitry. Its enable-controlled shutdown reduces standby current to 0.01µA, and internal fold-back short-circuit protection limits output current to 55mA during VOUT-to-GND faults.
Designed for high-PSRR, low-noise biasing of sensitive analog/RF blocks, it maintains regulation across 1.7V–5.25V input range and delivers stable 2.5V output with ±1.5% accuracy over −40°C to +85°C ambient, while exhibiting <0.1%/V line regulation and ≤30mV load regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±1% at +25°C; ±1.5% over full temperature range - ensures precise bias for ADC references or RF ICs. |
| Max Output Current | 300mA guaranteed - supports moderate-power subsystems like camera ISPs or baseband processors. |
| PSRR | 75dB at 1kHz - suppresses switching noise from adjacent DC-DC converters feeding noisy power domains. |
| Output Noise | 60µVrms (10Hz–100kHz) - minimizes phase noise impact on VCOs and PLLs in wireless transceivers. |
| Quiescent Current | 35µA typical - extends battery life in always-on sensor or standby-mode circuits. |
| Dropout Voltage | 0.30–0.40V at 300mA and VOUT = 2.5V - enables operation from single-cell Li-ion (3.0V min) with margin. |
| Enable Threshold | VEN(H) ≥1.3V, VEN(L) ≤0.5V - compatible with 1.8V/3.3V GPIO without level-shifting. |
Pinout & Package
The AP7341-25FS4-7 is housed in a 1.0mm × 1.0mm X2-DFN1010-4 package with exposed thermal pad (non-functional GND connection). PCB layout requires large copper area under the thermal pad for optimal junction-to-board thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PIN1 - VOUT | Regulated power output | Delivers clean 2.5V to load; must be decoupled with 1.0µF ceramic capacitor placed adjacent to pin. |
| PIN2 - GND | Power ground reference | Primary return path for output current; connects directly to low-impedance ground plane to minimize noise coupling. |
| PIN3 - EN | Active-high enable control | Drives regulator ON/OFF; must not float - tie to VIN if always enabled, or interface with MCU GPIO. |
| PIN4 - VIN | Unregulated input supply | Accepts 1.7V–5.25V; requires 0.47µF ceramic capacitor placed within 2mm of pin to suppress supply transients. |
Key Features
| Feature | Design Value |
|---|---|
| High PSRR | 75dB at 1kHz enables clean power delivery in mixed-signal SoC applications where DC-DC ripple must be attenuated. |
| Ultra-low noise | 60µVrms output noise preserves signal integrity in RF front-ends and precision analog signal chains. |
| Low quiescent current | 35µA operating current allows use in battery-powered devices requiring multi-week standby duration. |
| Thermal-efficient package | X2-DFN1010-4 with thermal pad supports >200mA continuous output at +85°C ambient without derating. |
| Integrated protection | Fold-back current limiting (55mA short-circuit) and thermal shutdown prevent damage during fault conditions. |
Applications
| Smartphone RF Power Rail | Portable Camera ISP Supply |
|---|---|
|
Use Scenario: Providing stable 2.5V bias to LTE/Wi-Fi RF transceiver LNA and mixer stages. IC Role / Device Role / Timing Role: Low-noise post-regulator cleaning switched-mode supply output before analog RF circuitry. Use Value: 75dB PSRR and 60µVrms noise prevent AM-to-PM distortion and EVM degradation in 5G NR uplink paths. |
Use Scenario: Powering image signal processor core logic and analog front-end in mobile camera modules. IC Role / Device Role / Timing Role: Precision voltage source maintaining VDD_IO compliance for MIPI CSI-2 interface timing margins. Use Value: ±1% output accuracy and <30mV load regulation ensure consistent pixel clock jitter and ADC reference stability. |
| Wireless Adapter Baseband | Portable Media Player Audio Codec |
|
Use Scenario: Supplying 2.5V to Bluetooth/BLE SoC baseband processor and memory interface. IC Role / Device Role / Timing Role: Enable-controlled LDO enabling fast power cycling of peripheral subsystems during sleep/wake transitions. Use Value: 0.01µA shutdown current and 35µA active IQ reduce average system power by >15% in duty-cycled BLE advertising intervals. |
Use Scenario: Delivering ultra-low-noise 2.5V to stereo audio DAC and headphone amplifier in MP3 players. IC Role / Device Role / Timing Role: Clean analog supply isolating DAC reference from digital switching noise generated by display and storage controllers. Use Value: 60µVrms noise floor achieves >105dB SNR in 24-bit audio playback, meeting Hi-Res Audio certification thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-2502E/TO | 250mA max output, 6µA IQ, 65dB PSRR @1kHz, SOT-23-5 package | Limited current headroom for burst-mode loads; higher dropout (0.6V @250mA) | Prefer when ultra-low IQ dominates over noise/PSRR requirements and board space permits larger SOT-23 footprint. |
| Torex XC6206P252MR-G | 300mA, 1.0µA IQ, 50dB PSRR @1kHz, SOT-25 package | Lower PSRR and higher noise (120µVrms) compromise RF/analog performance | Select only for cost-sensitive, non-RF applications where standby current is critical and noise is not design-constrained. |
Compared with MCP1700-2502E/TO and XC6206P252MR-G, the AP7341-25FS4-7 uniquely balances 300mA capability, 75dB PSRR, and 60µVrms noise in a 1.0mm² DFN - making it optimal for space-constrained RF and precision analog subsystems where all three parameters are simultaneously required.
Availability
AP7341-25FS4-7 is available at Aetrix Electronics and suitable for smartphone RF supply, portable camera ISP power, wireless adapter baseband, and portable media player audio codec applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for AP7341-25FS4-7 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 series belongs to Diodes' high-PSRR, low-noise LDO product line, engineered specifically for noise-sensitive analog and RF subsystems in battery-powered portable electronics where small size and efficiency are critical.
FAQ
What is the minimum input voltage required for AP7341-25FS4-7 to maintain regulation at 300mA?
The AP7341-25FS4-7 requires VIN ≥ 2.8V to sustain 2.5V output at 300mA, based on its maximum dropout voltage of 0.40V at that load and temperature. Below 2.8V input, output voltage will drop proportionally - e.g., at VIN = 2.7V, VOUT ≈ 2.3V.
Can AP7341-25FS4-7 be used without an external output capacitor?
No. The AP7341-25FS4-7 requires a minimum 1.0µF ceramic output capacitor placed adjacent to VOUT and GND pins for stability and transient response. Omitting COUT risks oscillation, poor load step recovery, and potential device failure under dynamic load conditions.
Is the thermal pad on the X2-DFN1010-4 package electrically connected internally?
No. The thermal pad is not electrically connected to any internal node. It serves solely for thermal conduction and should be soldered to a large PCB copper pour tied to GND for optimal heat dissipation - but must not be used as a functional GND terminal.
Does AP7341-25FS4-7 include reverse-current protection?
No. The AP7341-25FS4-7 lacks integrated reverse-current blocking. If VIN falls below VOUT while enabled, current can flow backward from VOUT to VIN through the pass transistor. External protection (e.g., series Schottky diode) is required in systems with multiple power domains.
AP7341-25FS4-7 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):
- 2.5V
- 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
AP7341-25FS4-7 FAQ
1.How can I place an order for AP7341-25FS4-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7341-25FS4-7 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 AP7341-25FS4-7 reliable?
The price and inventory of AP7341-25FS4-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7341-25FS4-7 is usually 5 days.
3.What payment methods are accepted for AP7341-25FS4-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7341-25FS4-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7341-25FS4-7?
AP7341-25FS4-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7341-25FS4-7 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 AP7341-25FS4-7?
For technical support, including AP7341-25FS4-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7341-25FS4-7 requirements.
6.How does Aetrix verify that AP7341-25FS4-7 is sourced from the original manufacturer or authorized distributors?
All AP7341-25FS4-7 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 AP7341-25FS4-7 meets industry standards.
7.What is the process for return or replacement of AP7341-25FS4-7?
All AP7341-25FS4-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7341-25FS4-7, 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 AP7341-25FS4-7 part is unused and in its original packaging.
Return procedure for AP7341-25FS4-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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