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Diodes Incorporated AP7342D-2518FS6-7
- Part No.:
- AP7342D-2518FS6-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-XFDFN Exposed Pad
- Datasheet:
-
AP7342D-2518FS6-7.pdf
- Description:
- IC REG LIN 1.8V/2.5V X2DFN1212-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,860
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Product details
Overview
AP7342D-2518FS6-7 from Diodes Incorporated is a dual-channel CMOS low-dropout regulator delivering fixed 2.5V and 1.8V outputs with ±1% accuracy, 150mA per channel, 75dB PSRR at 1kHz, 60µVrms output noise (10Hz–100kHz), and quiescent current as low as 35µA. It serves as a compact, high-PSRR power supply for RF and digital core rails in space-constrained portable electronics.
For engineers reviewing the AP7342D-2518FS6-7 datasheet, AP7342D-2518FS6-7 pinout, AP7342D-2518FS6-7 application, or AP7342D-2518FS6-7 equivalent, this page provides verified technical context, validated pin functions, confirmed dual-rail use cases, and documented alternative LDOs with explicit functional trade-offs.
Technical Context
The AP7342D-2518FS6-7 integrates two independent CMOS-based LDO regulators sharing a common input (VIN) and ground (GND), each with dedicated enable (EN1/EN2) and output (VOUT1/VOUT2) pins. Its architecture supports simultaneous or independent channel control without cross-regulation.
Each channel features internal voltage reference, error amplifier, current limiting, and thermal shutdown. The D-suffix denotes built-in auto-discharge functionality on both outputs, enabling rapid VOUT discharge when disabled - critical for sequencing-sensitive systems like mobile SoCs and camera modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltages | 2.5V (Channel 1), 1.8V (Channel 2); fixed via internal resistor network - eliminates external feedback components and ensures stable rail generation. |
| Output Accuracy | ±1% at +25°C, ±1.5% over −40°C to +85°C - enables reliable operation of precision analog and low-voltage logic without calibration. |
| PSRR | 75dB at 1kHz - suppresses switching noise from upstream DC-DC converters, protecting sensitive RF and ADC circuits. |
| Output Noise | 60µVrms (10Hz–100kHz) - meets stringent noise requirements for image sensors and audio codecs. |
| Dropout Voltage | 0.25V (at 150mA, VOUT = 2.5V), 0.30V (at 150mA, VOUT = 1.8V) - allows efficient operation from single-cell Li-ion or 3.3V system rails. |
| Quiescent Current | 35µA (one channel active, no load), 70µA (both channels active, no load) - extends battery life in always-on sensor and standby subsystems. |
| Enable Thresholds | EN high ≥1.3V, EN low ≤0.5V - compatible with 1.8V/3.3V GPIOs without level-shifting. |
Pinout & Package
X2-DFN1212-6 package: 1.2mm × 1.2mm, 0.4mm height, thermally enhanced with exposed pad (non-functional GND connection). Optimized for ultra-dense PCB layouts in mobile and wearable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT1 | 2.5V regulated output; requires local 0.47µF ceramic capacitor for stability and transient response. |
| 2 | VOUT2 | 1.8V regulated output; independently controllable; same capacitor requirement as VOUT1. |
| 3 | GND | Common ground reference for both regulators and input/output capacitors; must connect to low-impedance ground plane. |
| 4 | EN2 | Active-high enable for Channel 2 (1.8V); floating prohibited - tie to VIN or MCU GPIO for controlled startup/shutdown. |
| 5 | VIN | Shared 1.7V–5.25V input; supplies both regulators; requires 0.47µF decoupling capacitor placed adjacent to pin. |
| 6 | EN1 | Active-high enable for Channel 1 (2.5V); independent of EN2 - enables flexible power sequencing (e.g., 2.5V before 1.8V). |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enables | EN1 and EN2 allow staggered power-up/down of 2.5V and 1.8V rails - essential for SoC I/O and core voltage sequencing. |
| Built-in auto-discharge | 50Ω on-resistance per channel discharges VOUT to <100mV within ~100µs after disable - prevents latch-up in downstream logic during reset. |
| Ultra-low noise & high PSRR | 60µVrms noise + 75dB PSRR at 1kHz - preserves signal integrity in RF front-ends and high-resolution imaging pipelines. |
| Wide input range | 1.7V–5.25V operation supports direct connection to Li-ion (2.7–4.2V), USB (4.75–5.25V), or 3.3V system rails. |
| Thermal & short-circuit protection | Internal foldback current limit (~55mA short-circuit) and thermal shutdown prevent damage during fault conditions - reduces need for external protection circuitry. |
Applications
| Smartphone Baseband Power | RF Transceiver Supply |
|---|---|
|
Use Scenario: Dual-rail power for LTE/5G baseband processor requiring 2.5V I/O and 1.8V core voltage with strict sequencing. IC Role / Device Role / Timing Role: Primary dual-LDO providing independent, sequenced 2.5V and 1.8V supplies; EN1/EN2 driven by PMIC or application processor GPIOs. Use Value: Eliminates need for two discrete LDOs and external sequencing logic; 75dB PSRR isolates baseband from noisy PMIC switching noise. |
Use Scenario: Clean, low-noise bias for RF power amplifier (PA) driver and low-noise amplifier (LNA) stages. IC Role / Device Role / Timing Role: Dedicated 2.5V rail (VOUT1) powers PA driver; 1.8V rail (VOUT2) powers LNA and mixer bias networks. Use Value: 60µVrms noise ensures minimal phase noise degradation; fast discharge prevents RF leakage during transmit/receive transitions. |
| Digital Camera Module | Portable Media Decoder |
|
Use Scenario: Powering CMOS image sensor (1.8V analog/digital core) and ISP interface (2.5V I/O) in compact camera modules. IC Role / Device Role / Timing Role: Dual-output LDO replaces discrete regulators; EN2 controls sensor core power, EN1 manages ISP interface power. Use Value: X2-DFN1212-6 footprint saves >40% board area vs. SOT-23 dual-LDOs; thermal pad improves reliability under continuous capture load. |
Use Scenario: Supplying video decoder ASIC (1.8V core) and HDMI PHY interface (2.5V) in portable media players. IC Role / Device Role / Timing Role: Single-package solution delivering both rails; independent enables support hot-plug detection and display power management. Use Value: 35µA quiescent current extends playback time in standby; 0.25V dropout at 150mA enables operation down to 2.75V battery voltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP7345D-2518FS6-7 | Successor device; identical pinout, same 2.5V/1.8V outputs, improved PSRR (80dB @ 1kHz), lower noise (45µVrms), and extended temp range (−40°C to +125°C). | Valid for automotive AEC-Q100 Grade 2 applications where AP7342D is not qualified; supports higher ambient temperature environments. | Select AP7345D for new designs requiring longer product lifecycle, higher reliability, or extended temperature operation. |
| TPL7407LPWPR | TI dual 150mA LDO; 2.5V/1.8V fixed outputs; no auto-discharge; PSRR 65dB @ 1kHz; noise 90µVrms; larger WSON-12 package (2.5mm × 2.5mm). | Lacks discharge function - requires external MOSFET circuit for VOUT discharge; less suitable for fast-sequencing SoC interfaces. | Choose only if AP7342D/AP7345D supply constraints exist and discharge is not required; accept larger footprint and higher noise. |
Compared with AP7342D-2518FS6-7, AP7345D offers measurable improvements in noise, PSRR, and temperature rating while maintaining full pin and functional compatibility - making it the preferred upgrade path. TPL7407LPWPR provides similar dual-rail capability but sacrifices discharge, noise performance, and size efficiency.
Availability
AP7342D-2518FS6-7 is available at Aetrix Electronics and suitable for smartphone baseband power, RF transceiver supply, and digital camera module applications requiring stable component supply, long-term sourcing continuity, and RoHS-compliant packaging.
Supply support for AP7342D-2518FS6-7 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-efficiency power management, signal integrity, and protection solutions for consumer, industrial, and automotive markets.
The AP7342 series belongs to Diodes' high-PSRR, low-noise LDO portfolio designed specifically for battery-powered portable electronics where compact size, low quiescent current, and clean power delivery are critical.
FAQ
What is the thermal pad on the X2-DFN1212-6 package used for?
The exposed thermal pad on AP7342D-2518FS6-7 is intended for enhanced heat dissipation and must be connected to a large copper pour on the PCB. It is not electrically connected to GND internally - connecting it to GND improves thermal performance but is not required for electrical functionality. Do not rely on it as the sole GND connection.
Can EN1 and EN2 be tied together and driven by a single GPIO?
Yes - EN1 and EN2 can be paralleled and driven by one GPIO to enable or disable both 2.5V and 1.8V outputs simultaneously. However, doing so forfeits independent sequencing capability. Ensure the GPIO can source/sink sufficient current (≤1µA leakage per EN pin) and meets the 1.3V high / 0.5V low thresholds across temperature.
Is the AP7342D-2518FS6-7 qualified for automotive applications?
No - AP7342D-2518FS6-7 is not AEC-Q100 qualified. For automotive-grade dual-LDOs with identical 2.5V/1.8V outputs, Diodes recommends the AP7345D-2518FS6-7, which is qualified to AEC-Q100 Grade 2 (−40°C to +105°C) and manufactured in IATF 16949-certified facilities.
What is the minimum recommended output capacitance for stable operation?
The AP7342D-2518FS6-7 is stable with ≥0.47µF ceramic capacitors on both VOUT1 and VOUT2. Lower ESR values (<10mΩ) improve transient response. Place capacitors within 2mm of their respective VOUT and GND pins, using short, wide traces to minimize impedance and ensure robust load-step performance.
AP7342D-2518FS6-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-XFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 5.25V
- Voltage - Output (Min/Fixed):
- 1.8V, 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.39V @ 150mA, 0.3V @ 150mA
- Current - Output:
- 150mA, 150mA
- Current - Quiescent (Iq):
- 100 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-DFN1212-6
AP7342D-2518FS6-7 FAQ
1.How can I place an order for AP7342D-2518FS6-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7342D-2518FS6-7 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 AP7342D-2518FS6-7 reliable?
The price and inventory of AP7342D-2518FS6-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7342D-2518FS6-7 is usually 5 days.
3.What payment methods are accepted for AP7342D-2518FS6-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7342D-2518FS6-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7342D-2518FS6-7?
AP7342D-2518FS6-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7342D-2518FS6-7 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 AP7342D-2518FS6-7?
For technical support, including AP7342D-2518FS6-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7342D-2518FS6-7 requirements.
6.How does Aetrix verify that AP7342D-2518FS6-7 is sourced from the original manufacturer or authorized distributors?
All AP7342D-2518FS6-7 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 AP7342D-2518FS6-7 meets industry standards.
7.What is the process for return or replacement of AP7342D-2518FS6-7?
All AP7342D-2518FS6-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7342D-2518FS6-7, 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 AP7342D-2518FS6-7 part is unused and in its original packaging.
Return procedure for AP7342D-2518FS6-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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