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Diodes Incorporated AP7350-28CF4-7
- Part No.:
- AP7350-28CF4-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 4-XFBGA, WLBGA
- Datasheet:
-
AP7350-28CF4-7.pdf
- Description:
- IC REG LIN 2.8V 150MA X2WLB0606
- Quantity:
- Payment:
- Shipping:
Inventory:22,258
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Product details
Overview
AP7350-28CF4-7 from Diodes Incorporated is a 2.8V fixed-output, 150mA ultra-low quiescent current LDO regulator in X2-WLB0606-4 wafer-level chip-scale package. It delivers ±1% output voltage accuracy over temperature, supports 2.0V–5.25V input range, and draws only 0.25µA typical quiescent current - enabling multi-year battery life in wearable sensors and IoT edge nodes.
For engineers reviewing the AP7350-28CF4-7 datasheet, AP7350-28CF4-7 pinout, AP7350-28CF4-7 application, or AP7350-28CF4-7 equivalent, key selection criteria include dropout voltage at 150mA (0.19V typ), EN-controlled shutdown with 0.02µA standby current, thermal resistance (θJA = 267°C/W), and compatibility with 0.1µF ceramic input/output capacitors in space-constrained layouts.
Technical Context
The AP7350-28CF4-7 integrates a precision voltage reference, error amplifier, current-limit protection, and enable logic in a single die. Its feedback loop is internally compensated for stability with minimal 0.1µF ceramic capacitors, eliminating external compensation components.
It operates across –40°C to +85°C ambient, maintains regulation down to 2.0V input, and features built-in ESD protection (4kV HBM, 400V MM) and latch-up immunity (>400mA). The non-discharge variant lacks active output discharge, distinguishing it from the AP7350D-28CF4-7.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8V ±1% at +25°C; ±2% over –40°C to +85°C - ensures stable rail for low-power MCUs and sensors. |
| Max Output Current | 150mA continuous - sufficient for BLE SoCs, image sensor biasing, and sub-GHz RF transceivers. |
| Quiescent Current | 0.25µA typical - enables >10-year battery life in coin-cell-powered wearables with intermittent wake cycles. |
| Dropout Voltage | 0.19V typ at 150mA - allows operation from single Li-ion (3.0V min) or two alkaline cells (2.4V min) without brownout. |
| Enable Threshold | VEN(HI) ≥ 1.0V, VEN(LO) ≤ 0.4V - compatible with 1.8V/3.3V GPIOs without level-shifting. |
| Thermal Resistance | θJA = 267°C/W - requires minimal PCB copper area for thermal management in ultra-thin modules. |
| ESD Rating | 4kV HBM, 400V MM - meets IEC 61000-4-2 Level 2 for handheld device robustness. |
Pinout & Package
AP7350-28CF4-7 uses the X2-WLB0606-4 wafer-level chip-scale package (0.64mm × 0.64mm × 0.34mm), with SnAgCu solder balls and moisture sensitivity level 1 (J-STD-020).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (EN) | Enable control input | Active-high logic input; must be driven to avoid floating; ties directly to host MCU GPIO for power-gating control. |
| 2 (GND) | Ground reference | Primary return path for input, output, and internal circuitry; requires low-impedance connection to system ground plane. |
| 3 (VOUT) | Regulated output | Delivers stable 2.8V to load; requires 0.1µF ceramic capacitor placed within 1mm of pin for transient stability. |
| 4 (VIN) | Input power supply | Accepts 2.0–5.25V unregulated input; needs local 0.1µF decoupling capacitor adjacent to pin to suppress supply noise. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ | 0.25µA quiescent current enables >10-year shelf life on CR2032 in always-on sensor nodes. |
| Miniature footprint | X2-WLB0606-4 (0.41mm² area) saves >60% board space vs. SOT-23-5, critical for hearables and smart patches. |
| High accuracy | ±1% output tolerance ensures reliable ADC reference and RF PLL VCO biasing without calibration. |
| Wide input range | 2.0–5.25V operation supports direct connection to USB, Li-ion, or dual-alkaline sources without pre-regulation. |
| Robust protection | Integrated current limit (60mA short-circuit), thermal shutdown, and 4kV HBM ESD protect against field failures. |
Applications
| Wearable Health Monitor | IoT Environmental Sensor Node |
|---|---|
|
Use Scenario: Continuous ECG/PPG sensing powered by CR2032 coin cell. IC Role / Device Role / Timing Role: Primary 2.8V power rail for analog front-end and BLE microcontroller. Use Value: 0.25µA quiescent current extends battery life to 3+ years in sleep mode; 0.19V dropout enables full utilization of cell voltage down to 2.4V. |
Use Scenario: Battery-powered soil moisture/temperature node transmitting hourly via LoRaWAN. IC Role / Device Role / Timing Role: Stable 2.8V supply for ultra-low-power MCU and analog sensor interface. Use Value: ±1% output accuracy prevents sensor gain drift; 0.1µF ceramic capacitor compatibility simplifies layout in compact PCBs. |
| Smart Camera Module | Wireless Audio Earbud |
|
Use Scenario: Miniaturized 1MP camera module in AR glasses with motion-triggered capture. IC Role / Device Role / Timing Role: Dedicated LDO for image sensor analog core and ISP power domain. Use Value: Fast turn-on (<10µs) and low noise ensure clean startup for frame capture; X2-WLB0606-4 fits beneath sensor die. |
Use Scenario: Dual earbud with ANC, touch control, and Bluetooth LE audio. IC Role / Device Role / Timing Role: Secondary 2.8V rail for touch controller and MEMS microphone biasing. Use Value: EN pin enables synchronized power gating with main SoC, reducing system idle current by >50%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-2802E/TO | 2.8V fixed, 250mA, 1.6µA IQ, SOT-23-5 package (2.9mm²) | Larger footprint, higher IQ - less suitable for coin-cell wearables but easier to hand-solder. | Select when board space permits and manual assembly is required. |
| Torex XC6210B282MR-G | 2.8V fixed, 150mA, 0.6µA IQ, USP-4 package (0.64mm²) | Slightly higher IQ and larger footprint than AP7350-28CF4-7; no EN pin. | Select when enable control is unnecessary and cost is prioritized over minimum IQ. |
Compared with MCP1700-2802E/TO and XC6210B282MR-G, the AP7350-28CF4-7 offers the lowest quiescent current (0.25µA) and smallest footprint (0.41mm²), making it optimal for volume production of space- and battery-limited edge devices where every nanoamp and square micron matters.
Availability
AP7350-28CF4-7 is available at Aetrix Electronics and suitable for wearable electronics, IoT sensor modules, and wireless communication devices requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AP7350-28CF4-7 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 automotive markets.
The AP7350 series targets ultra-low-power portable electronics, delivering industry-leading quiescent current and miniature packaging for next-generation wearables, medical patches, and battery-constrained IoT endpoints.
FAQ
What is the minimum input voltage required for AP7350-28CF4-7 to regulate 2.8V output at 150mA?
The minimum input voltage is determined by dropout: VIN(MIN) = VOUT + VDROPOUT. At 150mA and +25°C, typical dropout is 0.19V, so VIN(MIN) = 2.8V + 0.19V = 2.99V. The datasheet guarantees regulation down to 2.0V input, but full 150mA load requires ≥2.99V input under typical conditions.
Can AP7350-28CF4-7 be used without an enable signal?
Yes - the EN pin must not float. To operate continuously, tie EN directly to VIN. This ensures the regulator remains enabled at all times and avoids unintended shutdown due to leakage or noise coupling on the EN line.
Is AP7350-28CF4-7 compatible with 0.1µF ceramic capacitors on both input and output?
Yes - the AP7350-28CF4-7 is specifically designed for stability with 0.1µF X5R/X7R ceramic capacitors on both VIN and VOUT. These values meet ESR and capacitance requirements per the datasheet, eliminating need for larger or specialized capacitors.
Does AP7350-28CF4-7 include output discharge functionality?
No - AP7350-28CF4-7 is the non-discharge variant. When disabled via EN, the output remains floating. For active pull-down of VOUT during shutdown, use AP7350D-28CF4-7, which integrates a 35Ω discharge switch between VOUT and GND.
AP7350-28CF4-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 4-XFBGA, WLBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.25V
- Voltage - Output (Min/Fixed):
- 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.4V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 400 nA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Current Limit
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X2-WLB0606-4
AP7350-28CF4-7 FAQ
1.How can I place an order for AP7350-28CF4-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7350-28CF4-7 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 AP7350-28CF4-7 reliable?
The price and inventory of AP7350-28CF4-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7350-28CF4-7 is usually 5 days.
3.What payment methods are accepted for AP7350-28CF4-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7350-28CF4-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7350-28CF4-7?
AP7350-28CF4-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7350-28CF4-7 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 AP7350-28CF4-7?
For technical support, including AP7350-28CF4-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7350-28CF4-7 requirements.
6.How does Aetrix verify that AP7350-28CF4-7 is sourced from the original manufacturer or authorized distributors?
All AP7350-28CF4-7 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 AP7350-28CF4-7 meets industry standards.
7.What is the process for return or replacement of AP7350-28CF4-7?
All AP7350-28CF4-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7350-28CF4-7, 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 AP7350-28CF4-7 part is unused and in its original packaging.
Return procedure for AP7350-28CF4-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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