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Diodes Incorporated AP7344D-2825RH4-7
- Part No.:
- AP7344D-2825RH4-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-XFDFN Exposed Pad
- Datasheet:
-
AP7344D-2825RH4-7.pdf
- Description:
- IC REG LIN 2.5V/2.8V X2DFN1612-8
- Quantity:
- Payment:
- Shipping:
Inventory:4,058
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Product details
Overview
AP7344D-2825RH4-7 from Diodes Incorporated is a dual-channel CMOS low-dropout regulator delivering fixed 2.8V and 2.5V outputs, each rated for 300mA continuous current, ±1% output voltage accuracy, 75dB PSRR at 1kHz, and 60µVrms output noise (10Hz–100kHz). It operates from 1.7V to 5.25V input and features independent enable inputs for power sequencing in compact portable electronics.
For engineers reviewing the AP7344D-2825RH4-7 datasheet, AP7344D-2825RH4-7 pinout, AP7344D-2825RH4-7 application, or AP7344D-2825RH4-7 equivalent, key selection criteria include dual-rail low-noise supply capability, thermal performance in X2-DFN1612-8, channel-independent enable control, and discharge functionality for fast VOUT ramp-down.
Technical Context
The AP7344D-2825RH4-7 integrates two independent LDO regulators on a single CMOS die, each with dedicated error amplifier, voltage reference, current-limit circuit, and enable input. Its architecture supports simultaneous or staggered channel activation without cross-regulation.
Each channel provides built-in auto-discharge (D-version), enabling rapid output discharge when disabled-critical for systems requiring controlled power-down sequences. The device maintains stability with ≥1µF ceramic output capacitors and exhibits <0.34V dropout at 300mA for the 2.8V rail and <0.30V for the 2.5V rail.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Channel 1: 2.8V fixed; Channel 2: 2.5V fixed - eliminates external feedback resistors and ensures precise dual-rail generation. |
| Output Current | 300mA per channel - supports RF transceivers, camera ISPs, and baseband processors without derating at +85°C. |
| PSRR | 75dB at 1kHz - suppresses switching noise from DC/DC converters feeding the LDO input, preserving signal integrity in sensitive analog blocks. |
| Output Noise | 60µVrms (10Hz–100kHz) - enables clean power for ADCs, PLLs, and RF front-ends where spectral purity is critical. |
| Quiescent Current | 100µA typical with both channels enabled - extends battery life in always-on sensor nodes and standby subsystems. |
| Dropout Voltage | 290mV max at 300mA (2.8V channel); 250mV max at 300mA (2.5V channel) - allows operation from single-cell Li-ion (3.0V min) with margin. |
| Enable Threshold | VEN(H) = 1.3V min; VEN(L) = 0.5V max - compatible with 1.8V/3.3V GPIOs and supports direct connection to microcontroller I/O pins. |
Pinout & Package
X2-DFN1612-8 package: 1.6mm × 1.2mm × 0.4mm body, 0.4mm pitch, thermal pad exposed on bottom for PCB-level heat dissipation. Requires solder mask defined pad tied to GND for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 4) | Power ground reference | Dual ground pins reduce impedance and improve PSRR; must be connected to low-impedance PCB ground plane. |
| VOUT1 (Pin 2) | Channel 1 regulated output | Delivers fixed 2.8V; requires local 1µF ceramic capacitor within 2mm of pin for transient stability. |
| VOUT2 (Pin 3) | Channel 2 regulated output | Delivers fixed 2.5V; independent from VOUT1-no cross-talk under load transients up to 100mA/µs. |
| EN2 (Pin 5) | Channel 2 enable input | Active-high logic; drives channel 2 into shutdown (<1µA IQ) when pulled ≤0.5V; must not float. |
| VIN2 (Pin 6) | Channel 2 input supply | Accepts 1.7V–5.25V; may be shared with VIN1 or independently routed for noise isolation. |
| VIN1 (Pin 7) | Channel 1 input supply | Accepts 1.7V–5.25V; decoupled by 0.47µF ceramic capacitor placed adjacent to pin. |
| EN1 (Pin 8) | Channel 1 enable input | Active-high logic; enables/disables channel 1 independently; supports power sequencing with 100ns response. |
| Thermal Pad | Exposed copper pad (bottom) | Not electrically functional as GND; must be soldered to ≥100mm² copper pour connected to system GND for thermal relief. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable inputs | EN1/EN2 allow staggered startup/shutdown-enables safe power sequencing in multi-rail SoC designs without external logic. |
| Integrated auto-discharge (D-version) | 50Ω internal N-channel FET discharges VOUT1/VOUT2 within 10µs when disabled-prevents floating rails and latch-up in downstream circuitry. |
| Ultra-low noise output | 60µVrms broadband noise enables use in RF biasing, high-resolution SAR ADC references, and PLL VCO supplies without added filtering. |
| High PSRR across frequency | 75dB @ 1kHz, >60dB @ 100kHz-maintains clean output even when powered from noisy buck converter outputs. |
| Wide input voltage range | 1.7V–5.25V operation supports single-cell Li-ion, USB VBUS, and multi-cell alkaline sources without pre-regulation. |
Applications
| Smartphone Baseband Power | RF Transceiver Bias |
|---|---|
|
Use Scenario: Dual-rail supply for LTE/Wi-Fi baseband processor requiring isolated 2.8V I/O and 2.5V core rails with tight sequencing. IC Role / Device Role / Timing Role: Primary dual-LDO providing independent, low-noise, sequenced power domains with sub-10µs enable response. Use Value: Eliminates need for discrete enable logic and external discharge FETs-reducing BOM count by 3 components and PCB area by 1.2mm². |
Use Scenario: Clean bias for 5G mmWave front-end modules where PSRR and noise directly impact EVM and ACLR. IC Role / Device Role / Timing Role: Low-noise, high-PSRR dual LDO delivering stable 2.8V PA bias and 2.5V LNA supply from noisy PMIC output. Use Value: Achieves 60µVrms noise floor and 75dB ripple rejection-meeting -45dBc ACLR spec without additional LC filtering. |
| Camera ISP Core Supply | Portable Media Player Audio Codec |
|
Use Scenario: Powering image signal processor cores demanding ultra-low noise and fast load transient response during burst capture. IC Role / Device Role / Timing Role: Dual-channel LDO supplying 2.8V digital core and 2.5V analog domain with <50mV undershoot under 100mA/µs load step. Use Value: Maintains <±1% regulation during 300mA dynamic loads-preventing frame corruption and color banding artifacts. |
Use Scenario: Providing clean, sequenced power to stereo audio codec ICs in Bluetooth headphones with strict THD+N requirements. IC Role / Device Role / Timing Role: Dual LDO generating 2.8V AVDD and 2.5V DVDD with independent enable for mute/unmute timing control. Use Value: Delivers 60µVrms noise floor-achieving <−105dB THD+N without post-regulation filtering, saving 2x 10µF tantalum caps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP7345D-2825RH4-7 | Successor part with improved thermal resistance (θJA = 220°C/W vs. 260°C/W), lower quiescent current (45µA vs. 50µA), and AEC-Q100 Grade 2 qualification. | Approved for automotive infotainment and ADAS camera modules; AP7344D is not AEC-qualified. | Select AP7345D for new designs requiring extended temperature support or automotive compliance. |
| TPL7407LDR | Single-channel 300mA LDO with integrated 7-channel high-side driver; no dual-output or discharge function. | Targets LED driver + bias integration; lacks independent dual-rail capability and low-noise optimization. | Use only if system requires combined LDO + driver functionality and can accept single-rail architecture. |
Compared with AP7344D-2825RH4-7, AP7345D offers superior thermal performance and automotive qualification but shares identical pinout and electrical behavior-making it a drop-in upgrade. TPL7407LDR trades dual-rail precision for driver integration, sacrificing noise and PSRR for system-level consolidation.
Availability
AP7344D-2825RH4-7 is available at Aetrix Electronics and suitable for smartphone baseband power, RF transceiver bias, and camera ISP core supply requiring stable component supply across industrial and consumer production programs.
Supply support for AP7344D-2825RH4-7 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 high-volume electronics markets.
The AP7344 series belongs to Diodes' high-PSRR, low-noise LDO portfolio designed specifically for battery-powered portable devices where power efficiency, small footprint, and signal integrity are critical.
FAQ
What is the maximum allowable input voltage for AP7344D-2825RH4-7?
The absolute maximum input voltage is 6.0V, but the recommended operating range is 1.7V to 5.25V. Exceeding 5.25V risks violating the specified dropout margin and may degrade long-term reliability-even if within absolute maximum ratings. Operation above 5.25V is not characterized or guaranteed.
Does AP7344D-2825RH4-7 support independent input supplies for each channel?
Yes-VIN1 (Pin 7) and VIN2 (Pin 6) are electrically isolated inputs, allowing separate power sources (e.g., one from a buck converter, another from a battery rail). This enables noise isolation between channels and supports fault containment in multi-supply systems.
How does the auto-discharge feature behave during enable transitions?
When EN1 or EN2 is pulled low, the corresponding channel's internal 50Ω N-channel FET connects VOUT to GND, discharging the output capacitor within 10µs (typical). Discharge occurs only when the enable pin is actively driven low-not during floating or high-impedance states.
Can AP7344D-2825RH4-7 be used in automotive applications?
No-AP7344D-2825RH4-7 is not AEC-Q100 qualified and is explicitly marked "NOT RECOMMENDED FOR NEW DESIGNS" in favor of the automotive-qualified AP7345D. Diodes recommends AP7345D for any automotive application requiring change control, PPAP, or IATF 16949 manufacturing.
AP7344D-2825RH4-7 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):
- 2.5V, 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.3V @ 300mA, 0.3V @ 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-2825RH4-7 FAQ
1.How can I place an order for AP7344D-2825RH4-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7344D-2825RH4-7 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-2825RH4-7 reliable?
The price and inventory of AP7344D-2825RH4-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7344D-2825RH4-7 is usually 5 days.
3.What payment methods are accepted for AP7344D-2825RH4-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7344D-2825RH4-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7344D-2825RH4-7?
AP7344D-2825RH4-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7344D-2825RH4-7 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-2825RH4-7?
For technical support, including AP7344D-2825RH4-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7344D-2825RH4-7 requirements.
6.How does Aetrix verify that AP7344D-2825RH4-7 is sourced from the original manufacturer or authorized distributors?
All AP7344D-2825RH4-7 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-2825RH4-7 meets industry standards.
7.What is the process for return or replacement of AP7344D-2825RH4-7?
All AP7344D-2825RH4-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7344D-2825RH4-7, 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-2825RH4-7 part is unused and in its original packaging.
Return procedure for AP7344D-2825RH4-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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