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Diodes Incorporated AP7344D-3030RH4-7
- Part No.:
- AP7344D-3030RH4-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-XFDFN Exposed Pad
- Datasheet:
-
AP7344D-3030RH4-7.pdf
- Description:
- IC REG LINEAR 3V/3V X2DFN1612-8
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
AP7344D-3030RH4-7 from Diodes Incorporated is a dual-channel, 300mA low-dropout linear regulator with fixed 3.0V outputs per channel, high PSRR (75dB at 1kHz), ultra-low output noise (60µVrms, 10Hz–100kHz), and ±1% output voltage accuracy over temperature. It operates from 1.7V to 5.25V input and features independent enable inputs (EN1/EN2) for power sequencing in compact portable electronics.
For engineers reviewing the AP7344D-3030RH4-7 datasheet, AP7344D-3030RH4-7 pinout, AP7344D-3030RH4-7 application, or AP7344D-3030RH4-7 equivalent, key selection criteria include dual-rail low-noise biasing for RF/analog subsystems, thermal performance in X2-DFN1612-8, and enable-controlled shutdown for battery-powered load management.
Technical Context
The AP7344D-3030RH4-7 integrates two independent CMOS-based LDO regulators sharing a common ground but with separate VIN, VOUT, and EN pins. Each channel delivers 300mA with dropout as low as 0.22V at 300mA (for VOUT = 3.0V), enabling operation down to 1.7V input while maintaining regulation.
It features built-in short-circuit protection (foldback current limit ~55mA), thermal shutdown, and an integrated discharge path (D-suffix) that actively pulls VOUT to GND when disabled-critical for preventing back-powering in multi-rail systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0V per channel - eliminates external feedback resistors and ensures stable rail generation without calibration. |
| Max Output Current | 300mA per channel - supports moderate-power analog/RF ICs like transceivers or camera ISPs without external boost stages. |
| PSRR | 75dB at 1kHz - suppresses switching noise from adjacent DC-DC converters feeding noisy system rails. |
| Output Noise | 60µVrms (10Hz–100kHz) - meets stringent noise requirements for ADC reference supplies and RF VCO biasing. |
| VOUT Accuracy | ±1% at +25°C, ±1.5% over −40°C to +85°C - enables precise voltage margining in battery-powered applications. |
| Quiescent Current | 100µA (both channels enabled, no load) - extends battery life in always-on sensor or standby subsystems. |
| Dropout Voltage | 0.22V typical at 300mA (VOUT = 3.0V) - allows operation from single-cell Li-ion (3.0V min) with headroom for full-load regulation. |
Pinout & Package
AP7344D-3030RH4-7 is housed in an 8-pin X2-DFN1612-8 package (1.6mm × 1.2mm, 0.4mm pitch) with exposed thermal pad. The small footprint supports high-density PCB layouts in space-constrained mobile designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 4) | Common ground reference | Dual GND pins reduce ground impedance and improve PSRR/noise rejection across both channels. |
| VOUT1 (Pin 2) | Channel 1 regulated output | Delivers fixed 3.0V; requires local 1.0µF ceramic capacitor for stability and transient response. |
| VOUT2 (Pin 3) | Channel 2 regulated output | Independent 3.0V rail; supports asynchronous enable control for staggered power-up sequences. |
| EN2 (Pin 5) | Channel 2 enable input | Active-high logic; must be driven to avoid floating - enables selective shutdown of second rail during low-power modes. |
| VIN2 (Pin 6) | Channel 2 input supply | Accepts 1.7V–5.25V; decoupled by 1.0µF ceramic cap placed near pin to minimize input ripple coupling. |
| VIN1 (Pin 7) | Channel 1 input supply | Independent input allows separation of noisy (e.g., DC-DC) and clean (e.g., battery) sources per channel. |
| EN1 (Pin 8) | Channel 1 enable input | Enables fine-grained power domain control - e.g., powering RF front-end only during transmission bursts. |
| Thermal Pad | Thermal dissipation node | Must be connected to large copper pour tied to GND for thermal relief; not electrically functional as GND return path alone. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent LDOs | Two fully isolated 300mA regulators on one die - reduces BOM count and board area vs. discrete solutions. |
| Integrated discharge path | Active pull-down on VOUT when EN = low - prevents back-feeding into powered-down circuits, eliminating need for external diodes. |
| Ultra-low noise output | 60µVrms broadband noise - suitable for powering precision analog blocks (e.g., ADC references, PLL VCOs) without additional filtering. |
| High PSRR at low frequency | 75dB @ 1kHz - effectively rejects ripple from buck converter switching frequencies and their harmonics. |
| Wide input voltage range | 1.7V to 5.25V - accommodates single-cell Li-ion (2.7–4.2V), USB (4.75–5.25V), and hybrid supply architectures. |
Applications
| RF Power Amplifier Biasing | Camera Sensor Analog Supply |
|---|---|
|
Use Scenario: Providing clean, sequenced bias voltage to GaAs/GaN RF PAs in 4G/5G modules where switching noise from PMICs can degrade EVM. IC Role / Device Role / Timing Role: Dual-rail LDO delivering 3.0V to PA drain and gate drivers with independent EN control for turn-on timing alignment. Use Value: 75dB PSRR suppresses 1MHz–10MHz switching artifacts; 60µVrms noise avoids AM-to-PM distortion in high-order QAM signals. |
Use Scenario: Powering CIS analog front-end (AFE) and image signal processor (ISP) core in smartphone cameras requiring low-noise, fast-transient response. IC Role / Device Role / Timing Role: One channel powers AFE (3.0V), the other powers ISP core (3.0V); EN1/EN2 enable synchronized startup and controlled shutdown. Use Value: 300mA per channel supports peak pixel readout currents; 0.22V dropout enables use with aging Li-ion batteries down to 3.2V. |
| Wireless Communication Baseband | Portable Media Player Audio Codec |
|
Use Scenario: Supplying dual 3.0V rails to baseband SoC I/O and memory interfaces in Bluetooth/Wi-Fi combo chips where rail interaction must be minimized. IC Role / Device Role / Timing Role: Independent VIN/VOUT/EN paths isolate digital and analog domains; discharge function prevents cross-talk during sleep/wake transitions. Use Value: ±1% accuracy ensures consistent logic thresholds; 100µA quiescent current minimizes leakage in deep-sleep states. |
Use Scenario: Delivering low-noise 3.0V bias to audio DAC/ADC and headphone amplifier in portable media players with strict THD+N requirements. IC Role / Device Role / Timing Role: Dedicated LDO channel for audio codec; thermal pad connection maintains <85°C junction temp during extended playback. Use Value: 60µVrms noise directly translates to >105dB SNR; 300mA capacity supports dynamic headphone drive without sag. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP7345D-3030RH4-7 | Successor device with improved PSRR (80dB @ 1kHz), lower dropout (0.19V typ), and enhanced thermal performance in same X2-DFN1612-8 package. | Recommended for new designs requiring higher noise immunity or extended battery runtime; pin- and footprint-compatible. | Select AP7345D if designing for production beyond Q3 2024; AP7344D remains viable for legacy qualification or cost-sensitive builds. |
| TPL7407LDR | Single-channel 300mA LDO (3.0V fixed), no discharge path, 65dB PSRR, 30µVrms noise, SOT-23-5 package. | Requires two units for dual-rail use; lacks independent enable and discharge - unsuitable for back-powering-sensitive systems. | Only consider for space-tolerant designs where thermal density is low and discharge is unnecessary. |
Compared with AP7344D-3030RH4-7, the AP7345D offers measurable PSRR and dropout improvements for next-gen portable designs, while the TPL7407LDR sacrifices integration and safety features for simplicity - making it a fallback only when dual-channel consolidation is not required.
Availability
AP7344D-3030RH4-7 is available at Aetrix Electronics and suitable for RF power amplifier biasing, camera sensor analog supply, and portable media player audio codec applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for AP7344D-3030RH4-7 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 semiconductor company specializing in discrete, analog, and mixed-signal ICs, with design centers across Asia, Europe, and the US, and manufacturing in IATF 16949-certified facilities.
The AP7344 series belongs to Diodes' high-PSRR, low-noise LDO portfolio engineered specifically for battery-powered portable electronics demanding dual-rail precision regulation and minimal board area.
FAQ
What is the purpose of the thermal pad on the AP7344D-3030RH4-7?
The thermal pad is a non-electrical mechanical feature designed solely for heat dissipation. It must be soldered to a large copper pour connected to GND to maintain junction temperature below 125°C under 300mA load. It is not a functional GND terminal and must not be used as the sole return path for output current.
Can AP7344D-3030RH4-7 operate with input voltage below 1.7V?
No. The absolute minimum input voltage is 1.7V per the Recommended Operating Conditions table. Operation below this threshold risks loss of regulation, increased dropout, and potential instability. For sub-1.7V applications, consider alternative LDOs with ultra-low VIN capability or charge-pump-assisted biasing.
How does the discharge function behave during shutdown?
When either EN1 or EN2 is pulled low, the corresponding channel's internal NMOS discharge switch activates, pulling its VOUT pin to GND through ~50Ω resistance. This discharges external output capacitors within microseconds, preventing back-powering of upstream circuitry or unintended wake-up events in sleep modes.
Is AP7344D-3030RH4-7 qualified for automotive applications?
No. While Diodes offers AEC-Q100-qualified variants in the AP73xx family, the AP7344D-3030RH4-7 is specified for commercial temperature range (−40°C to +85°C) and is not PPAP-capable or manufactured under IATF 16949 for automotive use. Automotive-grade alternatives require explicit part number suffixes and qualification documentation.
AP7344D-3030RH4-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 8-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 @ 300mA, 0.29V @ 300mA
- Current - Output:
- 300mA, 300mA
- Current - Quiescent (Iq):
- 140 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-DFN1612-8
AP7344D-3030RH4-7 FAQ
1.How can I place an order for AP7344D-3030RH4-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7344D-3030RH4-7 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 AP7344D-3030RH4-7 reliable?
The price and inventory of AP7344D-3030RH4-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7344D-3030RH4-7 is usually 5 days.
3.What payment methods are accepted for AP7344D-3030RH4-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7344D-3030RH4-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7344D-3030RH4-7?
AP7344D-3030RH4-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7344D-3030RH4-7 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 AP7344D-3030RH4-7?
For technical support, including AP7344D-3030RH4-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7344D-3030RH4-7 requirements.
6.How does Aetrix verify that AP7344D-3030RH4-7 is sourced from the original manufacturer or authorized distributors?
All AP7344D-3030RH4-7 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 AP7344D-3030RH4-7 meets industry standards.
7.What is the process for return or replacement of AP7344D-3030RH4-7?
All AP7344D-3030RH4-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7344D-3030RH4-7, 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 AP7344D-3030RH4-7 part is unused and in its original packaging.
Return procedure for AP7344D-3030RH4-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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