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Diodes Incorporated AP7346D-3030FS6-7
- Part No.:
- AP7346D-3030FS6-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-XFDFN Exposed Pad
- Datasheet:
-
AP7346D-3030FS6-7.pdf
- Description:
- IC REG LINEAR 3V/3V X2DFN1212-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,990
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Product details
Overview
AP7346D-3030FS6-7 from Diodes Incorporated is a dual-channel, high-accuracy current-limiting LDO regulator in X2-DFN1212-6 package, delivering fixed 3.0V outputs per channel with ±1% output voltage accuracy, 157mA ±25mA current limit, and 75dB PSRR at 1kHz. It supports low-power portable applications including RF supplies and camera modules where tight regulation, low noise (60µVrms), and independent enable control are critical.
For engineers reviewing the AP7346D-3030FS6-7 datasheet, AP7346D-3030FS6-7 pinout, AP7346D-3030FS6-7 application, or AP7346D-3030FS6-7 equivalent, key selection criteria include dual-channel independent enable logic, thermal-pad-aware PCB layout, discharge-enabled output behavior, and compatibility with 0.47µF ceramic output capacitors for stable transient response.
Technical Context
The AP7346D-3030FS6-7 integrates two independent CMOS-based LDO regulators sharing a single VIN input but featuring separate EN1/EN2 controls and VOUT1/VOUT2 outputs. Each channel includes internal voltage reference, error amplifier, fold-back current limiting (132–182mA), and auto-discharge circuitry via integrated 50Ω N-channel switch.
It operates across 1.7V–5.25V input range with dropout as low as 0.22V at 3.0V output/120mA load, delivers 60µVrms output noise (10Hz–100kHz), and maintains ±1.5% total output accuracy over −40°C to +85°C ambient - enabled by ±30ppm/°C temperature coefficient and 0.02%/V line regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0V per channel; enables dual-rail power for RF ICs and image sensors without external feedback resistors. |
| Output Accuracy | ±1% at +25°C, ±1.5% over full temperature range; ensures reliable logic-level compliance for 3.0V I/O domains. |
| Current Limit | 157mA ±25mA per channel; provides predictable short-circuit protection while supporting peak loads in portable media subsystems. |
| PSRR | 75dB at 1kHz; suppresses switching noise from adjacent DC-DC converters in dense handheld PCB layouts. |
| Quiescent Current | 35µA per active channel (EN high, no load); extends battery life in always-on sensor or standby RF circuits. |
| Dropout Voltage | 0.22V typical at 3.0V/120mA; allows operation from single-cell Li-ion (3.0V min) with margin for voltage sag. |
| Output Noise | 60µVrms (10Hz–100kHz); meets low-noise analog supply requirements for ADCs, PLLs, and RF front-ends. |
Pinout & Package
X2-DFN1212-6 package: 1.2mm × 1.2mm body, 0.4mm pitch, exposed thermal pad (non-functional GND electrode; requires dedicated copper pour tied to system GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT1 | Regulated 3.0V output for Channel 1; requires local 0.47µF ceramic capacitor placement within 2mm of pin and GND. |
| 2 | VOUT2 | Regulated 3.0V output for Channel 2; independently controllable; shares same stability requirements as VOUT1. |
| 3 | GND | Analog/digital ground reference; must connect directly to low-impedance PCB ground plane under thermal pad. |
| 4 | EN2 | Active-high enable for Channel 2; 1.3V min high threshold ensures compatibility with 1.8V/3.3V GPIOs. |
| 5 | VIN | Common input for both channels; requires ≥0.47µF ceramic decoupling capacitor placed adjacent to pin. |
| 6 | EN1 | Active-high enable for Channel 1; independent logic control enables staggered power-up sequencing. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable inputs | EN1/EN2 allow per-channel power gating - essential for dynamic power management in multi-sensor mobile modules. |
| Built-in output discharge | 50Ω internal N-channel switch discharges VOUT on disable, preventing floating rails and ensuring clean power-down timing. |
| Ultra-low noise regulation | 60µVrms noise floor supports noise-sensitive analog blocks like RF transceivers and high-resolution camera ISPs. |
| Wide input voltage range | 1.7V–5.25V operation accommodates single-cell Li-ion, USB VBUS, and intermediate buck converter outputs. |
| High PSRR at low frequency | 75dB rejection at 1kHz mitigates ripple from switching regulators feeding shared input rails. |
Applications
| RF Power Amplifier Supply | Camera Image Sensor Core |
|---|---|
|
Use Scenario: Providing clean, regulated 3.0V bias to GaAs pHEMT power amplifiers in LTE/Wi-Fi front-end modules. IC Role / Device Role / Timing Role: Dual-channel LDO supplying independent PA bias and control logic rails with fast load transient response. Use Value: 75dB PSRR suppresses switching noise from PMIC DC-DC stages, preventing EVM degradation in 5G NR transmission. |
Use Scenario: Powering CIS analog core and I/O interface in smartphone rear-facing camera modules. IC Role / Device Role / Timing Role: Dual 3.0V LDO delivering isolated, low-noise supplies for pixel array and MIPI D-PHY receiver. Use Value: 60µVrms output noise prevents fixed-pattern noise and SNR loss in 12-bit+ image pipelines. |
| Portable Media Player Audio Codec | Fingerprint Sensor Module |
|
Use Scenario: Supplying reference voltage and analog front-end for stereo audio DAC/ADC in Bluetooth headphones. IC Role / Device Role / Timing Role: Dual LDO generating matched 3.0V rails for left/right channel signal chains with independent enable control. Use Value: ±1% output accuracy ensures consistent THD+N performance across channels; 35µA quiescent current extends playback time. |
Use Scenario: Powering capacitive fingerprint sensor ASIC and its analog sensing circuitry in secure mobile authentication modules. IC Role / Device Role / Timing Role: Dual LDO providing 3.0V for sensor excitation and 3.0V for digital controller - both gated during sleep mode. Use Value: Independent EN1/EN2 enables <1µA standby current via simultaneous shutdown; discharge function prevents false touch detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP7345D-3030FS6-7 | Successor part with identical pinout, same 3.0V/3.0V outputs, improved 130mA guaranteed current limit (vs. 157mA ±25mA), and tighter 0.01%/V line regulation. | Designed for new designs requiring AEC-Q200-compliant qualification path; same thermal profile and footprint. | Select when designing new products - Diodes explicitly states AP7346 is not recommended for new designs. |
| TPL7407LDR | TI dual LDO with 3.0V/3.0V outputs, 250mA per channel, but higher 90µA quiescent current and no built-in discharge. | Lacks auto-discharge; requires external MOSFET for rail discharge - increases BOM count and board area. | Choose only if higher current headroom is required and discharge functionality can be implemented externally. |
Compared with AP7346D-3030FS6-7, the AP7345D-3030FS6-7 offers guaranteed minimum current limit and enhanced line regulation for production stability, while TPL7407LDR trades off discharge capability and quiescent current for higher output current - making it less suitable for ultra-low-power portable systems.
Availability
AP7346D-3030FS6-7 is available at Aetrix Electronics and suitable for RF power amplifier supply, camera image sensor core, and fingerprint sensor module applications requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial and consumer electronics programs.
Supply support for AP7346D-3030FS6-7 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 AP7346 belongs to Diodes' high-accuracy dual-LDO product line, engineered specifically for space-constrained portable electronics demanding independent channel control, ultra-low noise, and fast transient response in sub-2mm² footprints.
FAQ
Is AP7346D-3030FS6-7 pin-compatible with AP7345D-3030FS6-7?
Yes - both devices use the identical X2-DFN1212-6 package and share identical pin assignments (VOUT1, VOUT2, GND, EN2, VIN, EN1). The AP7345D is a direct functional upgrade with tightened specifications and updated qualification status, enabling drop-in replacement in existing layouts.
What is the role of the thermal pad in AP7346D-3030FS6-7?
The exposed thermal pad is not an electrical GND terminal. It must be connected to a large PCB copper pour tied to system GND solely for thermal dissipation - not for current return. Using it as primary GND path risks ground bounce and violates Diodes' layout guidelines, which specify separate GND pin connection for signal integrity.
Can EN1 and EN2 be tied together for simultaneous control?
Yes - EN1 and EN2 may be wired in parallel to a single GPIO for synchronized channel enable/disable. However, doing so forfeits independent power sequencing; for applications requiring staggered startup (e.g., sensor initialization before signal chain), separate control is mandatory and supported by the device's logic thresholds.
Does AP7346D-3030FS6-7 support ceramic output capacitors smaller than 0.47µF?
No - Diodes specifies 0.47µF as the minimum stable ceramic output capacitance for both channels. Using smaller values (e.g., 0.22µF) risks instability and excessive ringing during load transients, as confirmed by ESR vs. output current stability graphs in the datasheet (DS38082 Rev. 2-3, p.10).
AP7346D-3030FS6-7 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):
- 3V, 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.29V @ 120mA, 0.29V @ 120mA
- Current - Output:
- 130mA, 130mA
- 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
AP7346D-3030FS6-7 FAQ
1.How can I place an order for AP7346D-3030FS6-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7346D-3030FS6-7 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 AP7346D-3030FS6-7 reliable?
The price and inventory of AP7346D-3030FS6-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7346D-3030FS6-7 is usually 5 days.
3.What payment methods are accepted for AP7346D-3030FS6-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7346D-3030FS6-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7346D-3030FS6-7?
AP7346D-3030FS6-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7346D-3030FS6-7 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 AP7346D-3030FS6-7?
For technical support, including AP7346D-3030FS6-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7346D-3030FS6-7 requirements.
6.How does Aetrix verify that AP7346D-3030FS6-7 is sourced from the original manufacturer or authorized distributors?
All AP7346D-3030FS6-7 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 AP7346D-3030FS6-7 meets industry standards.
7.What is the process for return or replacement of AP7346D-3030FS6-7?
All AP7346D-3030FS6-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7346D-3030FS6-7, 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 AP7346D-3030FS6-7 part is unused and in its original packaging.
Return procedure for AP7346D-3030FS6-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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