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Diodes Incorporated AP7345D-3030RH4-7
- Part No.:
- AP7345D-3030RH4-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-XFDFN Exposed Pad
- Datasheet:
-
AP7345D-3030RH4-7.pdf
- Description:
- IC REG LIN 3/3V 300MA/300MA 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,947
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Product details
Overview
AP7345D-3030RH4-7 from Diodes Incorporated is a dual-channel, 300mA low-dropout linear regulator with independent enable control per channel, ±1% output voltage accuracy at 3.0V/3.0V, 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 digital subsystems in portable media devices.
For engineers reviewing the AP7345D-3030RH4-7 datasheet, AP7345D-3030RH4-7 pinout, AP7345D-3030RH4-7 application, or AP7345D-3030RH4-7 equivalent, key selection criteria include dual-rail sequencing capability, thermal shutdown threshold (+150°C), auto-discharge function, low quiescent current (50µA per active channel), and X2-DFN1612-8 footprint constraints.
Technical Context
The AP7345D-3030RH4-7 integrates two independent CMOS-based LDO regulators sharing a common ground but with separate VIN, VOUT, EN, and internal current-limit circuitry. Each channel features a precision voltage reference, error amplifier, and low-RDS(ON) pass transistor enabling dropout as low as 0.22V at 300mA for 3.0V outputs.
It delivers stable regulation under fast load transients (e.g., 50mA→300mA in 40µs) and line steps (e.g., 2.8V→3.8V), supported by 1µF ceramic input/output capacitors. Thermal pad design enables 600mW power dissipation with PCB copper area tied to GND for enhanced thermal management.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0V / 3.0V per channel - eliminates external resistor network, reduces BOM count and layout area |
| Output Accuracy | ±1% at +25°C, ±1.5% over -40°C to +85°C - ensures reliable logic-level compliance for 3.0V I/O domains |
| PSRR | 75dB at 1kHz - suppresses switching noise from adjacent DC-DC converters feeding shared input rails |
| Output Noise | 60µVrms (10Hz–100kHz) - meets low-noise analog supply requirements for RF front-ends and ADC references |
| Quiescent Current | 50µA per active channel - extends battery life in always-on sensor or standby subsystems |
| Dropout Voltage | 0.22V typical at 300mA (3.0V output) - enables operation from single-cell Li-ion (3.0V min) without headroom loss |
| Enable Threshold | EN high ≥1.3V, EN low ≤0.5V - compatible with 1.8V/3.3V GPIOs without level-shifting |
| Thermal Shutdown | +150°C threshold with +20°C hysteresis - prevents latch-up during sustained overload or poor PCB thermal design |
Pinout & Package
X2-DFN1612-8 package: 1.6mm × 1.2mm × 0.39mm body, 0.4mm pitch, exposed thermal pad (non-functional GND electrode; requires PCB copper pour connected to system GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 4) | Power Ground Reference | Dual ground pins reduce ground bounce between channels; must be tied to low-impedance PCB ground plane |
| VOUT1 (Pin 2) | Channel 1 Regulated Output | 3.0V supply rail for primary digital core or RF transceiver; requires local 1µF ceramic capacitor |
| VOUT2 (Pin 3) | Channel 2 Regulated Output | 3.0V supply rail for secondary subsystem (e.g., camera ISP); independent from VOUT1 sequencing |
| EN2 (Pin 5) | Channel 2 Enable Input | Active-high logic control; floating prohibited - tie to VIN2 or MCU GPIO for power sequencing |
| VIN2 (Pin 6) | Channel 2 Input Supply | Accepts 1.7V–5.25V; decoupled by 1µF ceramic cap placed adjacent to pin |
| VIN1 (Pin 7) | Channel 1 Input Supply | Independent input path allows split-rail sourcing (e.g., VIN1 from PMIC, VIN2 from battery) |
| EN1 (Pin 8) | Channel 1 Enable Input | Enables/disables VOUT1 independently; supports staggered startup to limit inrush current |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable inputs | EN1/EN2 allow precise power-up/down sequencing of two 3.0V rails without external logic |
| Auto-discharge function | Internal 30Ω N-channel FET discharges VOUT when EN is low - eliminates hold-up voltage that could delay system reset |
| Low-noise, high-PSRR architecture | 75dB PSRR + 60µVrms noise enables clean supply for RF ICs and precision analog circuits |
| Ultra-low quiescent current | 50µA per active channel minimizes standby power draw in battery-powered portable devices |
| Thermal-enhanced DFN package | X2-DFN1612-8 with thermal pad supports 600mW dissipation - enables 300mA continuous operation in compact layouts |
Applications
| Smartphone Baseband | RF Transceiver Supply |
|---|---|
|
Use Scenario: Powering 3.0V baseband processor and memory interface in LTE/5G smartphones during active data transmission. IC Role / Device Role / Timing Role: Dual-rail LDO providing isolated, low-noise 3.0V supplies with independent enable for dynamic power gating. Use Value: Enables simultaneous operation of CPU and memory while suppressing coupling noise via 75dB PSRR and 60µVrms noise floor. |
Use Scenario: Delivering clean 3.0V bias to RF power amplifier and mixer stages in Wi-Fi 6/Bluetooth modules. IC Role / Device Role / Timing Role: Low-noise post-regulator for RF ICs requiring stable voltage under fast load transients (50mA→300mA in 40µs). Use Value: Maintains EVM integrity by limiting supply-induced phase noise - validated by 60µVrms noise spec and fast transient response. |
| Portable Camera Module | Wireless Adapter Core |
|
Use Scenario: Supplying 3.0V to image signal processor (ISP) and CMOS image sensor in compact action cameras. IC Role / Device Role / Timing Role: Dual-output LDO with thermal shutdown (+150°C) protecting against overheating in sealed enclosures. Use Value: Prevents thermal runaway during extended video capture using integrated +20°C hysteresis and auto-discharge on shutdown. |
Use Scenario: Powering 3.0V logic and analog sections of USB-C wireless dongles supporting Bluetooth LE and proprietary protocols. IC Role / Device Role / Timing Role: Compact dual-LDO replacing discrete regulators to meet strict 1.6mm × 1.2mm board space limits. Use Value: Reduces solution size by 40% vs. two SOT-23-5 LDOs while maintaining ±1% accuracy and 300mA per rail. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6216D303MR-G | Single-output 300mA LDO; no dual-rail or independent enable; 65dB PSRR; 40µVrms noise | Lacks channel independence - unsuitable for sequenced or isolated 3.0V rails | Select only if single-rail 3.0V supply suffices and board space permits two separate ICs |
| Richtek RT9080L-3030 | Dual 300mA LDO with 70dB PSRR, 80µVrms noise, no auto-discharge, SOT-23-8 package (2.9mm × 1.6mm) | Larger footprint (2.3× area), higher noise degrades RF performance, no discharge path delays system reset | Choose only if thermal pad integration is not feasible and 80µVrms noise is acceptable |
Compared with XC6216D303MR-G and RT9080L-3030, the AP7345D-3030RH4-7 uniquely combines dual independent enables, auto-discharge, 75dB PSRR, and X2-DFN1612-8's 1.6mm × 1.2mm footprint - making it optimal for space-constrained, multi-rail portable designs requiring fast sequencing and ultra-low noise.
Availability
AP7345D-3030RH4-7 is available at Aetrix Electronics and suitable for smartphone baseband power, RF transceiver biasing, and portable camera module supply requiring stable component supply, consistent parametric performance across temperature, and long-term lifecycle availability.
Supply support for AP7345D-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 manufacturer of discrete semiconductors and analog ICs, specializing in high-efficiency power management, signal integrity, and protection solutions for consumer, industrial, and communications markets.
The AP7345D belongs to Diodes' high-PSRR, low-noise LDO family designed specifically for battery-powered portable electronics where dual-rail sequencing, minimal footprint, and RF-grade cleanliness are critical.
FAQ
What is the maximum output current per channel for AP7345D-3030RH4-7?
Each channel delivers up to 300mA continuously under recommended operating conditions (TA ≤ +85°C, proper PCB thermal design). Absolute maximum rating is 400mA, but sustained operation above 300mA risks thermal shutdown activation due to the +150°C threshold and limited X2-DFN1612-8 thermal mass.
Does AP7345D-3030RH4-7 require external resistors to set output voltage?
No. The AP7345D-3030RH4-7 has factory-trimmed fixed 3.0V outputs for both channels, implemented via an integrated resistor network. No external feedback resistors are needed, reducing BOM count and PCB area versus adjustable LDOs.
How does the auto-discharge function operate on AP7345D-3030RH4-7?
When either EN1 or EN2 is driven low, the corresponding channel activates an internal 30Ω N-channel FET between VOUT and GND, discharging output capacitance. This prevents residual voltage from holding downstream circuitry in undefined states during power-down sequences.
Can AP7345D-3030RH4-7 operate with input voltage below 2.0V?
Yes. It supports input voltages as low as 1.7V across the full -40°C to +85°C range. At 3.0V output, minimum dropout is 0.22V, so 1.7V input is sufficient only if output load is light (<10mA); full 300mA load requires VIN ≥ 3.22V to maintain regulation.
AP7345D-3030RH4-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 8-XFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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):
- 0.3V @ 300mA, 0.3V @ 300mA
- Current - Output:
- 300mA, 300mA
- Current - Quiescent (Iq):
- 140 µA
- Current - Supply (Max):
- 70 µA
- PSRR:
- 75dB (1kHz)
- Control Features:
- Current Limit, Enable
- Protection Features:
- Short Circuit
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X2-DFN1612-8
AP7345D-3030RH4-7 FAQ
1.How can I place an order for AP7345D-3030RH4-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7345D-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 AP7345D-3030RH4-7 reliable?
The price and inventory of AP7345D-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 AP7345D-3030RH4-7 is usually 5 days.
3.What payment methods are accepted for AP7345D-3030RH4-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7345D-3030RH4-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7345D-3030RH4-7?
AP7345D-3030RH4-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7345D-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 AP7345D-3030RH4-7?
For technical support, including AP7345D-3030RH4-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7345D-3030RH4-7 requirements.
6.How does Aetrix verify that AP7345D-3030RH4-7 is sourced from the original manufacturer or authorized distributors?
All AP7345D-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 AP7345D-3030RH4-7 meets industry standards.
7.What is the process for return or replacement of AP7345D-3030RH4-7?
All AP7345D-3030RH4-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7345D-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 AP7345D-3030RH4-7 part is unused and in its original packaging.
Return procedure for AP7345D-3030RH4-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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