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Diodes Incorporated AP7342D-1528FS6-7
- Part No.:
- AP7342D-1528FS6-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-XFDFN Exposed Pad
- Datasheet:
-
AP7342D-1528FS6-7.pdf
- Description:
- IC REG LIN 1.5V/2.8V X2DFN1212-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,651
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Product details
Overview
AP7342D-1528FS6-7 from Diodes Incorporated is a dual-channel, 150mA low-dropout linear regulator with independent enable control per channel, fixed 1.5V and 2.8V outputs, 75dB PSRR at 1kHz, 60µVrms output noise (10Hz–100kHz), and ±1% output voltage accuracy over temperature. It serves as a high-PSRR, low-noise dual power supply for RF and camera subsystems in portable media devices.
For engineers reviewing the AP7342D-1528FS6-7 datasheet, AP7342D-1528FS6-7 pinout, AP7342D-1528FS6-7 application, or AP7342D-1528FS6-7 equivalent, key selection criteria include dual independent enable logic, X2-DFN1212-6 thermal performance, dropout voltage ≤300mV at 150mA (for 2.8V channel), and compatibility with 0.47µF ceramic output capacitors.
Technical Context
The AP7342D-1528FS6-7 integrates two CMOS-based LDO regulators sharing a common input rail but featuring fully independent enable inputs (EN1/EN2), separate output pins (VOUT1/VOUT2), and individual internal current limiting. Each channel operates across 1.7V–5.25V input while maintaining regulation down to 200mV dropout (2.8V channel @ 150mA).
It implements auto-discharge functionality on both outputs (denoted by "D" suffix), using integrated 50Ω N-channel FETs to rapidly discharge VOUT when disabled-critical for sequencing-sensitive systems like mobile baseband processors. Thermal management relies on the exposed thermal pad tied to PCB ground plane.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltages | 1.5V (Channel 1), 2.8V (Channel 2); fixed via internal resistor network-no external feedback required. |
| Max Output Current | 150mA per channel; supports simultaneous full-load operation with <300mV dropout on 2.8V channel. |
| PSRR | 75dB at 1kHz; suppresses switching noise from upstream DC/DC converters feeding RF or analog circuitry. |
| Output Noise | 60µVrms (10Hz–100kHz); enables clean biasing of low-noise amplifiers and image sensors. |
| Quiescent Current | 35µA (one channel active, one disabled); extends battery life in always-on sensor or standby subsystems. |
| Accuracy | ±1% at +25°C, ±1.5% over −40°C to +85°C; ensures stable core/logic voltage margins without calibration. |
| Enable Thresholds | EN high ≥1.3V, EN low ≤0.5V; compatible with 1.8V/3.3V GPIO without level-shifting. |
Pinout & Package
X2-DFN1212-6 package: 1.2mm × 1.2mm footprint, 0.4mm pitch, 0.39mm height, with exposed thermal pad (not electrically functional as GND-requires PCB copper area connection for thermal dissipation).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT1 | 1.5V regulated output; connects directly to load requiring precise low-noise 1.5V supply (e.g., memory I/O). |
| 2 | VOUT2 | 2.8V regulated output; powers RF transceivers or camera modules needing stable mid-rail bias. |
| 3 | GND | Analog/digital ground reference; must be low-impedance connection to PCB ground plane. |
| 4 | EN2 | Active-high enable for Channel 2; controls 2.8V output independently-enables power sequencing. |
| 5 | VIN | Common input rail (1.7V–5.25V); shared by both regulators-requires 0.47µF ceramic decoupling. |
| 6 | EN1 | Active-high enable for Channel 1; allows independent wake-up/sleep control of 1.5V domain. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable control | EN1 and EN2 allow staggered power-up/down of 1.5V and 2.8V domains-essential for SoC reset sequencing. |
| Integrated auto-discharge | 50Ω on-chip FETs pull VOUT1/VOUT2 to GND within microseconds after disable-prevents floating bias in RF front-ends. |
| Ultra-low noise & high PSRR | 60µVrms noise + 75dB PSRR enables direct powering of RF synthesizers and CMOS image sensors without additional filtering. |
| Small-footprint packaging | X2-DFN1212-6 occupies only 1.44mm²-ideal for space-constrained mobile PCBs where layer count is limited. |
| Low quiescent current | 35µA operating current (one channel active) minimizes leakage during partial-sleep states in battery-powered devices. |
Applications
| Smartphone Camera Module | RF Transceiver Bias Supply |
|---|---|
Use Scenario: Dual-voltage biasing for CMOS image sensor (1.5V I/O + 2.8V analog core) with strict noise and sequencing requirements. IC Role / Device Role / Timing Role: Dual LDO providing isolated, low-noise, sequenced power rails-VOUT1 powers digital interface, VOUT2 powers analog pixel array. Use Value: 60µVrms noise prevents image sensor pattern noise; independent EN pins enable sensor initialization before analog activation. |
Use Scenario: Clean local regulation for 2.8V PA driver and 1.5V LO synthesizer in LTE/Wi-Fi front-end modules. IC Role / Device Role / Timing Role: High-PSRR LDO pair rejecting switcher ripple from shared PMIC input while enabling independent RF chain power gating. Use Value: 75dB PSRR at 1kHz suppresses DC/DC switching artifacts; auto-discharge prevents LO leakage during transmit mute. |
| Portable Media Player Audio Codec | Tablet Baseband Processor I/O |
Use Scenario: Low-noise analog supply (2.8V) and low-power logic supply (1.5V) for stereo audio DAC/ADC subsystem. IC Role / Device Role / Timing Role: Dual LDO delivering ripple-free bias to audio conversion circuitry while supporting dynamic power scaling via EN control. Use Value: Sub-1% voltage accuracy maintains THD+N spec; 35µA quiescent current extends playback time during pause mode. |
Use Scenario: Sequenced I/O voltage (1.5V) and core auxiliary rail (2.8V) for application processor interfaces in tablet SoM designs. IC Role / Device Role / Timing Role: Independent enable-controlled LDO pair managing power-up order between processor I/O banks and peripheral controllers. Use Value: Matched dropout behavior ensures reliable boot timing; X2-DFN1212-6 footprint enables dense BGA escape routing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP7345D-1528FS6-7 | Successor device with identical pinout, same 1.5V/2.8V outputs, improved PSRR (80dB @ 1kHz), lower noise (45µVrms), and extended temp range (−40°C to +125°C). | Qualified for extended industrial and automotive ambient conditions; supports higher junction temperature operation. | Preferred for new designs requiring longer product lifecycle support and enhanced noise/PSRR specs. |
| TPL7407LDR | TI dual 150mA LDO with 1.5V/2.8V fixed outputs, but no auto-discharge, higher quiescent current (65µA), and larger SOT-23-6 package. | Lacks output discharge-requires external circuitry for safe RF shutdown; less suitable for space-constrained layouts. | Only viable if auto-discharge is unnecessary and board area permits SOT-23-6 placement. |
Compared with AP7342D-1528FS6-7, the AP7345D offers measurable improvements in noise, PSRR, and temperature rating while maintaining drop-in compatibility-making it the recommended upgrade path. The TPL7407LDR trades away critical discharge capability and footprint efficiency for marginally better load regulation.
Availability
AP7342D-1528FS6-7 is available at Aetrix Electronics and suitable for smartphone camera modules, RF transceiver bias supplies, and portable media player audio codecs requiring stable component supply with guaranteed long-term traceability.
Supply support for AP7342D-1528FS6-7 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 power management, signal integrity, and protection solutions for consumer, industrial, and communications markets.
The AP7342 series belongs to Diodes' high-PSRR, low-noise LDO portfolio designed specifically for battery-powered portable electronics where compact size, ultra-low noise, and precise dual-rail sequencing are mandatory.
FAQ
What does the "D" suffix in AP7342D-1528FS6-7 indicate?
The "D" denotes integrated auto-discharge functionality on both output channels. When either EN1 or EN2 is pulled low, internal 50Ω N-channel FETs actively discharge the corresponding VOUT pin to GND-preventing residual voltage that could cause latch-up or improper reset in downstream RF or sensor circuits.
Can AP7342D-1528FS6-7 operate with only one channel enabled?
Yes. The device supports single-channel operation: driving EN1 high and EN2 low powers only the 1.5V output (VOUT1), drawing just 35µA quiescent current. Similarly, EN2 high + EN1 low activates only the 2.8V output (VOUT2), with identical low-IQ behavior-ideal for partial-system wake-up modes.
Is the X2-DFN1212-6 package thermally adequate for 150mA continuous load per channel?
Yes-when the exposed thermal pad is soldered to a ≥25mm² copper pour connected to GND, the device achieves θJA ≈ 120°C/W. At 150mA per channel with 300mV dropout (2.8V channel), total power dissipation is ~90mW, resulting in <11°C junction rise above ambient-well within the −40°C to +85°C operating range.
Why is AP7342D-1528FS6-7 not recommended for new designs?
Diodes Incorporated has designated AP7342 as legacy-replaced by the AP7345D, which offers identical pinout and electrical compatibility plus improved specifications: 80dB PSRR (vs. 75dB), 45µVrms noise (vs. 60µVrms), and extended operating temperature to +125°C. AP7345D also benefits from ongoing process optimization and longer projected lifecycle support.
AP7342D-1528FS6-7 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):
- 1.5V, 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.44V @ 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-1528FS6-7 FAQ
1.How can I place an order for AP7342D-1528FS6-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7342D-1528FS6-7 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-1528FS6-7 reliable?
The price and inventory of AP7342D-1528FS6-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7342D-1528FS6-7 is usually 5 days.
3.What payment methods are accepted for AP7342D-1528FS6-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7342D-1528FS6-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7342D-1528FS6-7?
AP7342D-1528FS6-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7342D-1528FS6-7 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-1528FS6-7?
For technical support, including AP7342D-1528FS6-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7342D-1528FS6-7 requirements.
6.How does Aetrix verify that AP7342D-1528FS6-7 is sourced from the original manufacturer or authorized distributors?
All AP7342D-1528FS6-7 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-1528FS6-7 meets industry standards.
7.What is the process for return or replacement of AP7342D-1528FS6-7?
All AP7342D-1528FS6-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7342D-1528FS6-7, 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-1528FS6-7 part is unused and in its original packaging.
Return procedure for AP7342D-1528FS6-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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