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Diodes Incorporated AP7342D-1218FS6-7
- Part No.:
- AP7342D-1218FS6-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-XFDFN Exposed Pad
- Datasheet:
-
AP7342D-1218FS6-7.pdf
- Description:
- IC REG LIN 1.2V/1.8V X2DFN1212-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,550
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Product details
Overview
AP7342D-1218FS6-7 from Diodes Incorporated is a dual-channel, 150mA low-dropout linear regulator with independent enable control per channel, fixed 1.2V and 1.8V outputs, ±1% output voltage accuracy over −40°C to +85°C, 75dB PSRR at 1kHz, and 60µVrms output noise (10Hz–100kHz). It operates from 1.7V to 5.25V input and targets power-sensitive RF and camera supply rails in portable media devices.
For engineers reviewing the AP7342D-1218FS6-7 datasheet, AP7342D-1218FS6-7 pinout, AP7342D-1218FS6-7 application, or AP7342D-1218FS6-7 equivalent, key selection criteria include dual-output voltage matching, independent EN control timing, thermal performance in X2-DFN1212-6, dropout behavior under 150mA load, and low-noise operation for analog/RF subsystems.
Technical Context
The AP7342D-1218FS6-7 integrates two independent CMOS-based LDO regulators sharing a common VIN and GND, each with dedicated EN1/EN2 inputs, internal voltage reference, error amplifier, and current-limit circuitry. Its architecture supports simultaneous or staggered channel enablement without cross-regulation.
It features built-in discharge capability (denoted by "D" suffix) on both outputs, enabling rapid VOUT discharge when disabled - critical for sequencing in multi-rail systems. The device maintains stability with 0.47µF ceramic output capacitors and exhibits <30mV load regulation across 1–150mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Channel 1: 1.2V ±1%, Channel 2: 1.8V ±1% - enables direct powering of core logic and I/O rails without external feedback. |
| Max Output Current | 150mA per channel - sufficient for baseband processors, image sensors, and RF transceivers in handheld devices. |
| PSRR | 75dB at 1kHz - suppresses switching noise from upstream DC/DC converters feeding noisy system rails. |
| Output Noise | 60µVrms (10Hz–100kHz) - meets low-noise requirements for analog camera modules and RF front-end biasing. |
| Quiescent Current | 35µA (one channel active, no load) - extends battery life in always-on sensor or standby subsystems. |
| Dropout Voltage | 0.48V at 150mA (1.2V output); 0.30V at 150mA (1.8V output) - allows operation from single-cell Li-ion or Li-poly batteries down to ~2.0V. |
| Enable Thresholds | EN high ≥1.3V, EN low ≤0.5V - compatible with 1.8V/3.3V GPIO without level-shifting. |
Pinout & Package
Packaged in X2-DFN1212-6 (1.2mm × 1.2mm, 0.4mm height), this ultra-compact regulator uses a thermal pad (non-electrical) for enhanced heat dissipation. PCB layout requires direct copper connection of the thermal pad to ground plane or large copper pour for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT1 | Regulated 1.2V output - supplies core voltage for low-power microcontrollers or memory interfaces. |
| 2 | VOUT2 | Regulated 1.8V output - powers I/O banks, camera sensor digital interfaces, or RF IC logic rails. |
| 3 | GND | Analog/digital ground reference - must be low-impedance connection to minimize noise coupling between channels. |
| 4 | EN2 | Active-high enable for Channel 2 - controls power-up sequencing of 1.8V rail independently of Channel 1. |
| 5 | VIN | Common input (1.7–5.25V) - accepts output from buck converter or single-cell battery with minimal headroom. |
| 6 | EN1 | Active-high enable for Channel 1 - allows staggered startup or dynamic power gating of 1.2V domain. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable inputs | EN1 and EN2 support asynchronous channel control - essential for power sequencing in multi-voltage SoC systems. |
| Built-in output discharge | Internal 50Ω N-channel FET discharges VOUT1/VOUT2 within microseconds upon disable - eliminates need for external bleed resistors. |
| Ultra-low noise & high PSRR | 60µVrms noise + 75dB PSRR ensures clean supply for noise-sensitive analog/RF blocks without additional filtering. |
| Stable with 0.47µF ceramic caps | Reduces BOM count and board area - eliminates need for bulk electrolytic or tantalum capacitors in space-constrained designs. |
| ±1% output accuracy over temp | Guarantees reliable operation of voltage-critical peripherals (e.g., ADC references, PLLs) across industrial temperature range. |
Applications
| Smartphone Camera Module | Wireless Adapter Power Rail |
|---|---|
|
Use Scenario: Dual-rail power delivery to CMOS image sensor (1.2V core, 1.8V I/O) with fast enable/disable during capture mode transitions. IC Role / Device Role / Timing Role: Dual-LDO providing isolated, low-noise, sequenced voltage domains - EN1/EN2 enable precise timing control of sensor reset and data readout phases. Use Value: Eliminates external discharge circuitry and reduces supply ripple-induced image noise by >20dB versus standard LDOs. |
Use Scenario: Powering 2.4GHz/5GHz Wi-Fi/BT combo chip requiring separate 1.2V PHY and 1.8V MAC rails with independent sleep/wake control. IC Role / Device Role / Timing Role: Dual-channel regulator with independent EN pins - enables selective shutdown of MAC while keeping PHY active for beacon listening. Use Value: Achieves sub-1µA system standby current via 0.1µA ISTANDBY mode and eliminates cross-talk between RF and digital domains. |
| Portable Media Player SoC | RF Front-End Bias Supply |
|
Use Scenario: Supplying application processor core (1.2V) and DDR I/O (1.8V) in battery-powered audio/video playback device. IC Role / Device Role / Timing Role: Dual-LDO with matched load transient response - maintains voltage stability during burst-mode video decode and display refresh. Use Value: Load regulation <30mV ensures consistent CPU performance and prevents DDR timing violations under dynamic load. |
Use Scenario: Providing ultra-clean 1.8V bias to LNA and mixer stages in cellular IoT modem RF transceiver. IC Role / Device Role / Timing Role: Low-noise, high-PSRR dual LDO - isolates sensitive RF analog circuits from noisy digital supply domains. Use Value: 60µVrms noise floor directly improves receiver SNR by ≥3dB compared to generic 1.8V regulators. |
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-1218FS6-7 | Successor part; identical pinout, same 1.2V/1.8V outputs, improved PSRR (80dB @1kHz), lower noise (45µVrms), and extended -40°C to +125°C rating. | Supports automotive AEC-Q100 Grade 2 qualification; suitable for extended-temperature industrial gateways and telematics units. | Select for new designs requiring higher reliability, wider temperature range, or tighter noise/PSRR specs. |
| TPL7407LDR | Single-channel 150mA LDO (1.8V only); no dual output, no discharge FET, higher quiescent current (55µA), PSRR 65dB @1kHz. | Lacks independent 1.2V rail and sequencing capability - requires second regulator for full dual-rail support. | Consider only if only one rail is needed and footprint constraints prohibit dual-LDO solution. |
Compared with AP7342D-1218FS6-7, the AP7345D-1218FS6-7 delivers measurable improvements in noise, PSRR, and temperature range without layout changes, while TPL7407LDR necessitates redesign for dual-rail use and sacrifices key performance metrics.
Availability
AP7342D-1218FS6-7 is available at Aetrix Electronics and suitable for smartphone camera modules, wireless adapter power rails, and portable media player SoC power delivery requiring stable component supply and long-term obsolescence management.
Supply support for AP7342D-1218FS6-7 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 AP7342 series belongs to Diodes' precision dual-LDO product line, designed specifically for space-constrained portable electronics requiring independent, low-noise, sequenced dual-rail power with minimal external components.
FAQ
What does the "D" suffix in AP7342D-1218FS6-7 indicate?
The "D" denotes built-in output discharge functionality on both VOUT1 and VOUT2. When either EN pin is pulled low, an internal 50Ω N-channel FET actively discharges the corresponding output capacitor to GND within microseconds - eliminating external bleed resistors and ensuring safe, rapid rail collapse during power-down sequences.
Can AP7342D-1218FS6-7 operate with only one channel enabled?
Yes. EN1 and EN2 are fully independent; driving EN1 high and EN2 low enables only the 1.2V output, while EN2 high and EN1 low enables only the 1.8V output. Quiescent current drops to 35µA in single-channel active mode, and standby current is just 0.1µA when both EN pins are low.
Is AP7342D-1218FS6-7 suitable for automotive applications?
No. The AP7342D-1218FS6-7 is not AEC-Q100 qualified and is rated for −40°C to +85°C operation. For automotive use, Diodes recommends the AP7345D-1218FS6-7, which is AEC-Q100 Grade 2 qualified and specified from −40°C to +125°C with enhanced reliability testing.
What is the minimum recommended output capacitance?
The datasheet specifies stability with 0.47µF ceramic capacitors on both VOUT1 and VOUT2. Using smaller values risks instability under load transients; larger values improve transient response but require verification against ESR vs. output current stability curves in the datasheet (Figure 10).
AP7342D-1218FS6-7 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):
- 1.2V, 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 150mA, 0.39V @ 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-1218FS6-7 FAQ
1.How can I place an order for AP7342D-1218FS6-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7342D-1218FS6-7 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-1218FS6-7 reliable?
The price and inventory of AP7342D-1218FS6-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7342D-1218FS6-7 is usually 5 days.
3.What payment methods are accepted for AP7342D-1218FS6-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7342D-1218FS6-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7342D-1218FS6-7?
AP7342D-1218FS6-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7342D-1218FS6-7 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-1218FS6-7?
For technical support, including AP7342D-1218FS6-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7342D-1218FS6-7 requirements.
6.How does Aetrix verify that AP7342D-1218FS6-7 is sourced from the original manufacturer or authorized distributors?
All AP7342D-1218FS6-7 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-1218FS6-7 meets industry standards.
7.What is the process for return or replacement of AP7342D-1218FS6-7?
All AP7342D-1218FS6-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7342D-1218FS6-7, 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-1218FS6-7 part is unused and in its original packaging.
Return procedure for AP7342D-1218FS6-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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