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Diodes Incorporated AP7342D-1818FS6-7
- Part No.:
- AP7342D-1818FS6-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-XFDFN Exposed Pad
- Datasheet:
-
AP7342D-1818FS6-7.pdf
- Description:
- IC REG LIN 1.8V/1.8V X2DFN1212-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,071
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Product details
Overview
AP7342D-1818FS6-7 from Diodes Incorporated is a dual-channel, 150mA low-dropout linear regulator with independent enable control per channel, fixed 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 RF supply rails and camera sensor power in space-constrained portable electronics.
For engineers reviewing the AP7342D-1818FS6-7 datasheet, AP7342D-1818FS6-7 pinout, AP7342D-1818FS6-7 application, or AP7342D-1818FS6-7 equivalent, this page delivers verified electrical parameters, validated X2-DFN1212-6 package layout guidance, dual-channel enable timing behavior, and confirmed drop-in alternatives for legacy design support.
Technical Context
The AP7342D-1818FS6-7 integrates two independent CMOS-based LDO regulators sharing a single 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 activation without cross-regulation.
Each channel features built-in auto-discharge functionality (enabled by 'D' suffix), delivering 50Ω on-resistance between VOUT and GND during shutdown to rapidly discharge external capacitors. Dropout voltage is 0.30V typical at 150mA for 1.8V output, enabling operation down to 2.1V input.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8V per channel - eliminates external feedback resistors, reduces BOM count and PCB area. |
| Output Accuracy | ±1% at +25°C, ±1.5% over -40°C to +85°C - ensures stable core/sensor biasing across temperature without calibration. |
| PSRR | 75dB at 1kHz - suppresses switching noise from adjacent DC-DC converters feeding shared input rail. |
| Output Noise | 60µVrms (10Hz–100kHz) - meets low-noise requirements for RF transceivers and high-resolution image sensors. |
| Quiescent Current | 35µA per active channel - extends battery life in always-on subsystems like camera preview or Bluetooth LE beacon modes. |
| Dropout Voltage | 0.30V typical at 150mA (1.8V output) - enables efficient operation from single-cell Li-ion (3.0V min) or 3.3V system rails. |
| Enable Thresholds | VEN(H) ≥ 1.3V, VEN(L) ≤ 0.5V - compatible with 1.8V/3.3V GPIO without level-shifting. |
Pinout & Package
X2-DFN1212-6 package: 1.2mm × 1.2mm, 0.4mm pitch, thermal pad exposed on bottom for enhanced heat dissipation. Requires solder mask defined pads and thermal via array to internal ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT1 | Regulated 1.8V output for Channel 1 - connect local 0.47µF ceramic capacitor within 2mm of pin and GND. |
| 2 | VOUT2 | Regulated 1.8V output for Channel 2 - independent from VOUT1; supports separate load sequencing. |
| 3 | GND | Common analog/digital ground reference - tie directly to PCB ground plane with multiple vias. |
| 4 | EN2 | Active-high enable for Channel 2 - must be driven to <0.5V (off) or >1.3V (on); floating prohibited. |
| 5 | VIN | Shared input supply (1.7V–5.25V) - place 0.47µF ceramic capacitor <1mm from pin to GND. |
| 6 | EN1 | Active-high enable for Channel 1 - independent control allows staggered power-up of dual-rail subsystems. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable inputs | EN1/EN2 allow precise sequencing of two 1.8V rails - critical for FPGAs or SoCs requiring controlled power-up order. |
| Auto-discharge function | 50Ω internal NMOS between VOUT and GND during shutdown - discharges 10µF load in <500µs, preventing latch-up in downstream logic. |
| Ultra-low noise & high PSRR | 60µVrms noise + 75dB PSRR - maintains signal integrity for RF front-end ICs and ADC reference supplies. |
| Low quiescent current | 35µA per active channel - enables micropower operation in battery-backed real-time clock or sensor monitoring circuits. |
| Small footprint packaging | X2-DFN1212-6 (1.2mm × 1.2mm) - saves >60% board area vs. SOT-23-6, enabling ultra-thin mobile designs. |
Applications
| Smartphone Camera Module | RF Transceiver Power Rail |
|---|---|
|
Use Scenario: Dual 1.8V supply for image sensor core logic and analog front-end in compact smartphone camera modules. IC Role / Device Role / Timing Role: Dual-LDO provides isolated, low-noise bias for sensor digital domain and analog pixel array, with independent EN control enabling power-gating during standby. Use Value: 60µVrms noise prevents fixed-pattern noise in captured images; 0.30V dropout enables direct use of 2.1V intermediate rail, reducing conversion losses. |
Use Scenario: Clean 1.8V supply for LTE/Wi-Fi transceiver RFIC VDDIO and VDDA pins in handheld wireless adapters. IC Role / Device Role / Timing Role: AP7342D-1818FS6-7 delivers two regulated 1.8V rails - one for I/O interface, one for analog RF section - with independent enable for dynamic power management. Use Value: 75dB PSRR at 1kHz attenuates switching noise from nearby PMICs; ±1% accuracy ensures consistent RF gain and linearity across temperature. |
| Portable Media Player Audio Codec | Tablet Display Interface |
|
Use Scenario: Dual 1.8V supply for audio codec's digital core and headphone driver amplifier in battery-powered media players. IC Role / Device Role / Timing Role: Regulator channels power digital logic and analog output stage separately, with EN2 used to mute amplifier during pause. Use Value: Auto-discharge clears residual charge from amplifier output caps before muting, eliminating pop/click artifacts; 35µA quiescent current extends playback time. |
Use Scenario: Dual 1.8V rails for MIPI DSI controller I/O and display panel timing controller in thin tablet designs. IC Role / Device Role / Timing Role: Provides matched, low-noise 1.8V supplies to transmitter and receiver sides of high-speed serial interface, minimizing jitter-induced bit errors. Use Value: X2-DFN1212-6 footprint fits tight routing near display connector; ±1% output matching ensures consistent signal threshold levels across differential pairs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP7345D-1818FS6-7 | Successor device: same pinout, identical 1.8V/1.8V outputs, but improved PSRR (80dB @1kHz) and lower noise (45µVrms). | Direct replacement with enhanced RF immunity - recommended for new designs targeting higher signal integrity. | Select AP7345D-1818FS6-7 for new designs; AP7342D-1818FS6-7 remains valid for legacy production continuity. |
| TPL7407LDR | Single-channel 150mA LDO (1.8V), no dual output or auto-discharge; 65dB PSRR, 100µVrms noise. | Requires two devices and external discharge circuitry to replicate dual-rail + discharge functionality. | Only viable if redesign permits doubling component count and sacrificing board area; not a functional drop-in. |
Compared with AP7342D-1818FS6-7, AP7345D-1818FS6-7 offers measurable PSRR/noise improvement without layout change, while TPL7407LDR increases BOM cost and PCB area without matching key features - making the AP7345D the preferred upgrade path.
Availability
AP7342D-1818FS6-7 is available at Aetrix Electronics and suitable for smartphone camera modules, RF transceiver power rails, and portable media player audio codecs requiring stable component supply and long-term industrial availability.
Supply support for AP7342D-1818FS6-7 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 automotive markets.
The AP7342 series belongs to Diodes' high-PSRR, low-noise LDO portfolio designed specifically for noise-sensitive portable electronics where dual-rail sequencing and minimal footprint are critical.
FAQ
What is the maximum allowable input voltage for AP7342D-1818FS6-7?
The absolute maximum input voltage is 6.0V, but the recommended operating range is 1.7V to 5.25V. Exceeding 5.25V may trigger internal protection or cause reliability degradation. For 1.8V output, minimum functional input is 2.1V (accounting for 0.30V typical dropout).
Does AP7342D-1818FS6-7 require external capacitors, and what values are recommended?
Yes: a minimum 0.47µF ceramic capacitor is required between VIN and GND, and separate 0.47µF ceramics are recommended for each VOUT pin. All capacitors must be placed within 2mm of their respective pins and connected to GND with low-inductance paths to ensure stability and transient response.
How does the auto-discharge feature operate, and when is it active?
The auto-discharge NMOS (50Ω typical) connects VOUT to GND only when its corresponding EN pin is driven low. It is inactive during normal regulation (EN high) and does not conduct when EN is floating - hence EN pins must never be left unconnected.
Is AP7342D-1818FS6-7 qualified for automotive applications?
No - AP7342D-1818FS6-7 is not AEC-Q100 qualified. Diodes offers automotive-grade variants (e.g., AP7342Q series) with PPAP capability and IATF 16949 manufacturing, but this specific part number is intended for commercial portable electronics only.
AP7342D-1818FS6-7 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, 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.39V @ 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-1818FS6-7 FAQ
1.How can I place an order for AP7342D-1818FS6-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7342D-1818FS6-7 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-1818FS6-7 reliable?
The price and inventory of AP7342D-1818FS6-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7342D-1818FS6-7 is usually 5 days.
3.What payment methods are accepted for AP7342D-1818FS6-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7342D-1818FS6-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7342D-1818FS6-7?
AP7342D-1818FS6-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7342D-1818FS6-7 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-1818FS6-7?
For technical support, including AP7342D-1818FS6-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7342D-1818FS6-7 requirements.
6.How does Aetrix verify that AP7342D-1818FS6-7 is sourced from the original manufacturer or authorized distributors?
All AP7342D-1818FS6-7 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-1818FS6-7 meets industry standards.
7.What is the process for return or replacement of AP7342D-1818FS6-7?
All AP7342D-1818FS6-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7342D-1818FS6-7, 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-1818FS6-7 part is unused and in its original packaging.
Return procedure for AP7342D-1818FS6-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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