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Diodes Incorporated AP7341D-15FS4-7
- Part No.:
- AP7341D-15FS4-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
AP7341D-15FS4-7.pdf
- Description:
- IC REG LINEAR 1.5V 300MA 4DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,965
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Product details
Overview
AP7341D-15FS4-7 from Diodes Incorporated is a 300mA, 1.5V fixed-output CMOS low-dropout regulator with ±1% output accuracy, 75dB PSRR at 1kHz, 60µVrms output noise (10Hz–100kHz), and 35µA quiescent current - designed for RF supply rails in compact portable communication devices.
For engineers reviewing the AP7341D-15FS4-7 datasheet, AP7341D-15FS4-7 pinout, AP7341D-15FS4-7 application, or AP7341D-15FS4-7 equivalent, key selection criteria include dropout voltage at 150mA (0.38–0.47V), 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-15FS4-7 integrates a precision voltage reference, error amplifier, current-limit circuit, and active-low enable control into a single CMOS LDO architecture. Its fixed 1.5V output is achieved via internal resistor network trimming, eliminating external feedback components.
It features built-in short-circuit protection (clamp ~55–60mA), auto-discharge via integrated N-channel MOSFET (RON = 30Ω when disabled), and stable operation with ≥0.47µF ceramic input and ≥1.0µF ceramic output capacitors - optimized for transient response in battery-powered RF subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±1% (25°C), ±1.5% (−40°C to +85°C) - ensures stable bias for RF power amplifiers and analog baseband circuits. |
| Max Output Current | 300mA guaranteed - supports multi-rail loads in smartphones, wireless adapters, and camera modules. |
| PSRR | 75dB at 1kHz - suppresses switching noise from PMICs or DC-DC converters feeding adjacent digital blocks. |
| Output Noise | 60µVrms (10Hz–100kHz) - minimizes phase noise degradation in RF synthesizers and ADC reference supplies. |
| Quiescent Current | 35µA typical - extends battery life in always-on sensor or standby-mode subsystems. |
| Dropout Voltage | 0.38–0.47V at 150mA (1.5V output) - enables operation down to 1.88V input, compatible with single-cell Li-ion (2.7–4.2V) with margin. |
| Enable Threshold | VEN(H) ≥1.3V, VEN(L) ≤0.5V - interfaces directly with 1.8V/3.3V GPIO without level-shifting. |
Pinout & Package
Packaged in a 1.0mm × 1.0mm X2-DFN1010-4 with exposed thermal pad (not electrically connected), this ultra-compact LDO supports high-density PCB layouts in space-constrained mobile designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PIN1: VOUT | Regulated Power Output | Delivers clean 1.5V to load; requires low-impedance path to ground via nearby 1.0µF ceramic capacitor. |
| PIN2: GND | Analog/Digital Ground Reference | Primary return path for output current and internal bias; must connect to solid ground plane under thermal pad. |
| PIN3: EN | Active-High Enable Control | Drives regulator ON/OFF; must not float - tie to VIN if unused; supports sequencing with upstream power rails. |
| PIN4: VIN | Input Power Supply | Accepts 1.7–5.25V; requires ≥0.47µF ceramic decoupling capacitor placed adjacent to pin. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-discharge function | Integrated 30Ω N-channel MOSFET discharges VOUT rapidly upon disable - prevents residual voltage from interfering with downstream logic reset timing. |
| Ultra-low noise output | 60µVrms over 10Hz–100kHz band - meets stringent spectral purity requirements for RF front-end biasing and precision analog signal chains. |
| High PSRR across frequency | 75dB at 1kHz, >60dB up to 100kHz - maintains regulation integrity against ripple from switching regulators operating at common frequencies (e.g., 1–3MHz). |
| Wide input voltage range | 1.7V to 5.25V - supports direct connection to single-cell Li-ion, USB VBUS, or intermediate buck outputs without pre-regulation. |
| Thermal efficiency | 400mW max power dissipation on JEDEC High-K board - enables reliable 300mA operation at ambient up to +85°C with minimal copper area. |
Applications
| RF Power Amplifier Bias | Camera Sensor Core Supply |
|---|---|
|
Use Scenario: Providing clean, low-noise 1.5V bias to GaAs or SiGe RF power amplifiers in 4G/5G mobile front-ends. IC Role / Device Role / Timing Role: LDO delivers stable voltage independent of RF load transients and PMIC switching noise. Use Value: 60µVrms noise and 75dB PSRR prevent AM-to-PM distortion and EVM degradation in transmit paths. |
Use Scenario: Powering image sensor analog core and PLL circuits in smartphone rear/front cameras. IC Role / Device Role / Timing Role: Regulator supplies low-noise, tightly regulated 1.5V for pixel readout and clock generation circuits. Use Value: ±1% accuracy and <0.5V dropout ensure consistent sensor gain and timing margin across battery discharge profile. |
| Wireless Adapter Baseband | Portable Media Player Audio Codec |
|
Use Scenario: Delivering 1.5V to baseband processors and transceivers in Wi-Fi/BT combo modules. IC Role / Device Role / Timing Role: LDO acts as local post-regulator for noise-sensitive digital and mixed-signal blocks. Use Value: 35µA quiescent current and enable control support low-power listening modes without compromising wake-up latency. |
Use Scenario: Supplying 1.5V reference and analog section of audio codecs in portable media players. IC Role / Device Role / Timing Role: Provides ultra-low-noise rail for DACs, ADCs, and headphone amplifiers. Use Value: 60µVrms noise floor preserves SNR >100dB and avoids audible hiss in high-gain playback paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-1502E/TO | 250mA max output, 6µA IQ, no enable pin, TO-92 package | Lacks enable control and auto-discharge; limited to low-current, non-sequenced applications | Choose only for cost-sensitive, low-power legacy designs where footprint and sequencing are not constraints. |
| Torex XC6206P152MR-G | 300mA, 1.5V, 15µA IQ, no enable, SOT-23-3 | No enable or discharge; smaller package but no shutdown control or fast turn-off capability | Select when minimal quiescent current is critical and system-level enable sequencing is handled externally. |
Compared with MCP1700-1502E/TO and XC6206P152MR-G, the AP7341D-15FS4-7 uniquely combines 300mA drive, enable control, auto-discharge, and ultra-low noise in a 1.0mm² DFN - making it optimal for modern RF and imaging subsystems requiring dynamic power management and spectral cleanliness.
Availability
AP7341D-15FS4-7 is available at Aetrix Electronics and suitable for RF power amplifier bias, camera sensor core supply, wireless adapter baseband, and portable media player audio codec applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for AP7341D-15FS4-7 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 connectivity solutions for consumer, industrial, and automotive markets.
The AP7341 series belongs to Diodes' high-PSRR, low-noise LDO product line - engineered specifically for noise-sensitive RF, imaging, and portable communication systems where power integrity directly impacts signal fidelity.
FAQ
What is the thermal pad connection requirement for AP7341D-15FS4-7?
The thermal pad on the AP7341D-15FS4-7 (X2-DFN1010-4) is not electrically connected but must be soldered to a large copper area tied to GND for optimal thermal dissipation. Per datasheet recommendation, this improves power handling and allows full 300mA operation at +85°C ambient without derating.
Does AP7341D-15FS4-7 support reverse current blocking?
No, the AP7341D-15FS4-7 does not include reverse current blocking. When VIN < VOUT, current can flow backward from VOUT to VIN through the internal pass transistor. External reverse-blocking diodes or MOSFETs are required in systems where backfeed must be prevented during hot-swap or partial power-down scenarios.
How does the auto-discharge feature behave during shutdown?
When EN is pulled low, the AP7341D-15FS4-7 activates an internal 30Ω N-channel MOSFET between VOUT and GND, discharging the output capacitor rapidly. This ensures VOUT falls below 0.1V within microseconds - critical for clean reset sequencing and avoiding latch-up in downstream logic powered by shared rails.
Can AP7341D-15FS4-7 operate with ceramic output capacitors below 1.0µF?
Yes - the AP7341D-15FS4-7 is stable with ceramic output capacitors as low as 0.47µF, provided ESR remains ≤10mΩ. However, 1.0µF is recommended for optimal transient response under 300mA load steps, especially in RF applications where rapid current demand changes occur.
AP7341D-15FS4-7 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):
- 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.47V @ 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-15FS4-7 FAQ
1.How can I place an order for AP7341D-15FS4-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7341D-15FS4-7 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-15FS4-7 reliable?
The price and inventory of AP7341D-15FS4-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7341D-15FS4-7 is usually 5 days.
3.What payment methods are accepted for AP7341D-15FS4-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7341D-15FS4-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7341D-15FS4-7?
AP7341D-15FS4-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7341D-15FS4-7 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-15FS4-7?
For technical support, including AP7341D-15FS4-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7341D-15FS4-7 requirements.
6.How does Aetrix verify that AP7341D-15FS4-7 is sourced from the original manufacturer or authorized distributors?
All AP7341D-15FS4-7 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-15FS4-7 meets industry standards.
7.What is the process for return or replacement of AP7341D-15FS4-7?
All AP7341D-15FS4-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7341D-15FS4-7, 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-15FS4-7 part is unused and in its original packaging.
Return procedure for AP7341D-15FS4-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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