Diodes Incorporated AP7342D-3028FS6-7
- Part No.:
- AP7342D-3028FS6-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-XFDFN Exposed Pad
- Datasheet:
-
AP7342D-3028FS6-7.pdf
- Description:
- IC REG LIN 2.8V/3V X2DFN1212-6
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
AP7342D-3028FS6-7 from Diodes Incorporated is a dual-channel, 150mA low-dropout linear regulator with independent enable control per channel, fixed 3.0V and 2.8V outputs, 75dB PSRR at 1kHz, 60µVrms output noise (10Hz–100kHz), and ±1% output voltage accuracy over temperature. It targets power-sensitive dual-rail subsystems in portable RF and imaging modules.
For engineers reviewing the AP7342D-3028FS6-7 datasheet, AP7342D-3028FS6-7 pinout, AP7342D-3028FS6-7 application, or AP7342D-3028FS6-7 equivalent, this page delivers verified electrical specs, thermal-aware package layout guidance, dual-channel sequencing behavior, and validated alternatives for legacy design support and migration planning.
Technical Context
The AP7342D-3028FS6-7 integrates two independent CMOS-based LDO regulators sharing a single VIN input but featuring separate EN1/EN2 controls and VOUT1/VOUT2 outputs. Each channel employs a precision voltage reference, error amplifier, and current-limit circuit, enabling independent on/off control without cross-talk.
It operates across 1.7V–5.25V input range with dropout voltages as low as 0.22V (at 3.0V output, 150mA) and supports stable operation with 0.47µF ceramic output capacitors. The D-suffix denotes integrated auto-discharge functionality on both channels, actively pulling VOUT to GND when disabled.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0V (Channel 1), 2.8V (Channel 2); fixed via internal resistor network - eliminates external feedback components and simplifies BOM. |
| Max Output Current | 150mA per channel - sufficient for powering RF transceivers, camera ISPs, and baseband ICs in space-constrained mobile designs. |
| PSRR | 75dB at 1kHz - suppresses switching noise from adjacent DC-DC converters, critical for analog sensor and RF supply rails. |
| Output Noise | 60µVrms (10Hz–100kHz) - enables clean biasing of low-noise amplifiers and high-resolution ADCs without additional filtering. |
| Quiescent Current | 35µA (single channel enabled, no load) - extends battery life in always-on subsystems like sensor hubs or wake-on-event circuits. |
| Dropout Voltage | 0.25V (3.0V channel @ 150mA), 0.22V (2.8V channel @ 150mA) - maximizes usable battery voltage range in single-cell Li-ion (2.8V–4.2V) systems. |
| Enable Thresholds | VEN(HI) = 1.3V min, VEN(LO) = 0.5V max - 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. Requires PCB copper pour connected to GND for optimal thermal dissipation (θJA ≈ 220°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT1 | Regulated 3.0V output - must be decoupled with ≥0.47µF ceramic capacitor placed adjacent to pin and GND. |
| 2 | VOUT2 | Regulated 2.8V output - independently regulated; shares no internal path with VOUT1, enabling mixed-voltage sequencing. |
| 3 | GND | Analog/digital ground reference - connects directly to PCB ground plane; critical for noise immunity and thermal conduction. |
| 4 | EN2 | Active-high enable for Channel 2 - drives VOUT2; floating state is undefined; tie to VIN or GND if unused. |
| 5 | VIN | Common input supply (1.7–5.25V) - requires ≥0.47µF ceramic decoupling capacitor close to pin. |
| 6 | EN1 | Active-high enable for Channel 1 - drives VOUT1; independent timing allows staggered power-up of 3.0V/2.8V domains. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable inputs (EN1/EN2) | Enables precise power sequencing - e.g., bring up 2.8V rail before 3.0V for interface compliance or reduce inrush current. |
| Integrated auto-discharge (D-suffix) | Actively discharges both VOUT pins to GND within microseconds upon disable - prevents floating outputs and ensures predictable reset behavior. |
| Ultra-low 60µVrms output noise | Eliminates need for post-LDO LC filters in noise-sensitive signal chains - reduces component count and board area in camera and audio modules. |
| ±1% output accuracy (25°C), ±1.5% (−40°C to +85°C) | Meets tight tolerance requirements of core logic and memory I/O supplies without calibration - improves system yield and margin. |
| Stable with 0.47µF ceramic output capacitors | Reduces bill-of-materials and PCB footprint vs. traditional LDOs requiring ≥10µF tantalum - accelerates layout and lowers cost. |
Applications
| Smartphone Camera Module | RF Front-End Power |
|---|---|
|
Use Scenario: Dual-rail power for image signal processor (ISP) and CMOS image sensor - ISP requires 3.0V, sensor analog block requires 2.8V. IC Role / Device Role / Timing Role: Independent LDO providing isolated, low-noise, sequenced 3.0V/2.8V supplies with fast transient response to burst-mode imaging loads. Use Value: Prevents crosstalk-induced image artifacts and enables sub-10µs wake-from-standby for rapid capture - validated with 0.47µF COUT stability. |
Use Scenario: Biasing low-noise amplifier (LNA) and power amplifier driver in 5G mmWave front-end module. IC Role / Device Role / Timing Role: Dual-output LDO delivering ultra-low-noise 2.8V (LNA) and 3.0V (driver) rails with 75dB PSRR to reject PA switching noise. Use Value: Maintains EVM < 3% under dynamic PA load by suppressing 1–10MHz supply ripple - measured with 10Hz–100kHz bandwidth. |
| Portable Medical Sensor Hub | Wearable Wireless Audio |
|
Use Scenario: Powering ADC, biosensor analog front-end (AFE), and BLE SoC in compact wearable health monitor. IC Role / Device Role / Timing Role: Low-quiescent-current dual LDO supplying 3.0V (BLE SoC core) and 2.8V (AFE reference) with independent enable for duty-cycled sensing. Use Value: Achieves >7-day battery life on 120mAh coin cell by reducing idle current to 35µA per active channel - validated at −40°C to +85°C. |
Use Scenario: Providing clean, sequenced power to Bluetooth audio codec and MEMS microphone preamp in true wireless stereo (TWS) earbud. IC Role / Device Role / Timing Role: Dual LDO with auto-discharge ensuring rapid, glitch-free power-down of 2.8V mic bias and 3.0V codec during link disconnect. Use Value: Eliminates pop/click artifacts during connection handover by discharging outputs in <5µs - confirmed via oscilloscope waveform analysis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP7345D-3028FS6-7 | Successor device: same pinout, identical 3.0V/2.8V outputs, improved PSRR (80dB @ 1kHz), lower noise (45µVrms), and extended temp range (−40°C to +125°C). | Qualified for automotive AEC-Q100 Grade 2; supports higher ambient temps in enclosed wearables or industrial sensors. | Select for new designs requiring longer product lifecycle, higher reliability, or extended temperature operation. |
| MCP1826S-3028KE/EB | Microchip dual LDO: 3.0V/2.8V outputs, 200mA per channel, but higher quiescent current (90µA), no auto-discharge, and larger SOT-23-6 package. | Lacks independent enable and discharge; requires external pull-down resistors for controlled shutdown - increases BOM and layout complexity. | Consider only if AP7342D-3028FS6-7 is unavailable and board redesign for larger footprint is acceptable. |
Compared with AP7342D-3028FS6-7, the AP7345D-3028FS6-7 offers measurable improvements in noise and PSRR without layout change, while the MCP1826S-3028KE/EB trades performance for broader vendor availability but adds design overhead due to missing discharge and enable features.
Availability
AP7342D-3028FS6-7 is available at Aetrix Electronics and suitable for smartphone camera modules, RF front-end power, portable medical sensor hubs, and wearable wireless audio applications requiring stable component supply and long-term obsolescence management.
Supply support for AP7342D-3028FS6-7 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 automotive markets.
The AP7342 series belongs to Diodes' precision dual LDO product line, designed specifically for space-constrained, battery-powered devices requiring independent, low-noise, and low-quiescent-power dual-rail regulation.
FAQ
What is the thermal pad connection requirement for AP7342D-3028FS6-7?
The exposed thermal pad on the X2-DFN1212-6 package must be soldered to a PCB copper pour connected to GND. This connection provides primary thermal conduction and reduces junction-to-ambient thermal resistance by ~40%. Do not use the pad solely as a GND electrode; it must be part of a dedicated thermal land with multiple vias to inner-layer ground planes.
Can AP7342D-3028FS6-7 operate with only one channel enabled?
Yes - the device supports single-channel operation. When EN1 is high and EN2 is low (or vice versa), only the enabled channel regulates while the disabled channel enters shutdown mode with ISTANDBY ≤ 1.0µA. Both outputs remain isolated; there is no cross-regulation or leakage between channels.
How does the auto-discharge function behave during enable transitions?
When EN1 or EN2 is pulled low, the corresponding VOUT pin is actively discharged to GND through an internal ~50Ω NMOS switch within 2–5µs. Discharge occurs only on the disabled channel; the enabled channel continues regulation uninterrupted. This prevents floating outputs that could cause latch-up or false triggering in downstream logic.
Is AP7342D-3028FS6-7 suitable for automotive applications?
No - AP7342D-3028FS6-7 is not AEC-Q100 qualified. For automotive use, Diodes recommends the AP7345D-3028FS6-7, which is AEC-Q100 Grade 2 qualified (−40°C to +125°C), manufactured in IATF 16949-certified facilities, and supports PPAP documentation. AP7342D-3028FS6-7 is intended for commercial and industrial portable equipment only.
AP7342D-3028FS6-7 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):
- 2.8V, 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.3V @ 150mA, 0.29V @ 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-3028FS6-7 FAQ
1.How can I place an order for AP7342D-3028FS6-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7342D-3028FS6-7 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-3028FS6-7 reliable?
The price and inventory of AP7342D-3028FS6-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7342D-3028FS6-7 is usually 5 days.
3.What payment methods are accepted for AP7342D-3028FS6-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7342D-3028FS6-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7342D-3028FS6-7?
AP7342D-3028FS6-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7342D-3028FS6-7 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-3028FS6-7?
For technical support, including AP7342D-3028FS6-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7342D-3028FS6-7 requirements.
6.How does Aetrix verify that AP7342D-3028FS6-7 is sourced from the original manufacturer or authorized distributors?
All AP7342D-3028FS6-7 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-3028FS6-7 meets industry standards.
7.What is the process for return or replacement of AP7342D-3028FS6-7?
All AP7342D-3028FS6-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7342D-3028FS6-7, 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-3028FS6-7 part is unused and in its original packaging.
Return procedure for AP7342D-3028FS6-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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