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Diodes Incorporated AP7354D-28FS4-7
- Part No.:
- AP7354D-28FS4-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
AP7354D-28FS4-7.pdf
- Description:
- IC REG LINEAR 2.8V 150MA 4DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,175
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Product details
Overview
AP7354D-28FS4-7 from Diodes Incorporated is a 2.8V fixed-output, 150mA ultra-low quiescent current LDO regulator in X2-DFN1010-4 (Type B) package with integrated active output discharge, ±1% output accuracy over temperature, and 0.25µA quiescent current - designed for power management in battery-constrained wearable sensors and IoT edge nodes.
For engineers reviewing the AP7354D-28FS4-7 datasheet, AP7354D-28FS4-7 pinout, AP7354D-28FS4-7 application, or AP7354D-28FS4-7 equivalent, key selection criteria include discharge-enabled shutdown behavior, sub-1µA standby current, dropout voltage at 150mA load, thermal resistance in DFN1010, and compatibility with 0.1µF ceramic input/output capacitors.
Technical Context
The AP7354D-28FS4-7 integrates a precision voltage reference, error amplifier, current-limit protection, and enable-controlled pass transistor - delivering regulated 2.8V output from 2.0V–5.5V input. Its architecture supports fast turn-on/turn-off response and stable operation with minimal external components.
Unlike non-discharge variants, this part includes an internal NMOS discharge switch tied to the EN pin, enabling rapid VOUT discharge during shutdown - critical for multi-rail sequencing and leakage-sensitive systems. The device operates across –40°C to +85°C ambient with guaranteed 150mA output current and 0.19V typical dropout at 150mA.
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 MCU core or sensor bias under thermal variation. |
| Quiescent Current | 0.25µA typical - enables >1-year battery life in 10µA average-load wearable applications. |
| Standby Current | 0.02µA typical when EN = low - eliminates residual drain during deep sleep modes. |
| Dropout Voltage | 0.19V typical at IOUT = 150mA - allows operation down to 2.99V input while sustaining full load. |
| Output Discharge | Active NMOS discharge path (35Ω typical) - discharges VOUT to <0.1V within ~1ms after EN deactivation. |
| Input Voltage Range | 2.0V to 5.5V - compatible with single-cell Li-ion, Li-poly, or dual-cell alkaline supplies. |
| Thermal Resistance | θJA = 295°C/W (X2-DFN1010-4) - requires minimal PCB copper area for thermal management at full load. |
Pinout & Package
X2-DFN1010-4 (Type B) package: 1.0mm × 1.0mm, 0.65mm pitch, no exposed pad, NiPdAu-plated copper terminals, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | VOUT | Regulated 2.8V output node - must be decoupled with ≥0.1µF ceramic capacitor placed adjacent to pin. |
| Pin 2 | GND | Power ground reference - connects directly to PCB ground plane; not shared with thermal pad (no center pad). |
| Pin 3 | EN | Active-high enable input - drives regulator ON when ≥1.0V; pulls VOUT to GND via internal discharge when ≤0.4V. |
| Pin 4 | VIN | Unregulated input supply - requires local 0.1µF ceramic bypass capacitor between VIN and GND. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 0.25µA enables >5-year shelf life in coin-cell-powered remote sensors. |
| Integrated output discharge | 35Ω active NMOS path reduces VOUT decay time to <1ms - prevents back-powering of upstream circuitry. |
| High accuracy over temperature | ±2% output tolerance across –40°C to +85°C - eliminates need for post-regulation trimming in industrial sensors. |
| Stable with minimal capacitance | Guaranteed stability with 0.1µF X5R/X7R ceramic COUT - reduces BOM count and board space vs. larger electrolytics. |
| Robust ESD protection | 4kV HBM / 400V MM rating - withstands handling and assembly without additional protection circuitry. |
Applications
| Wearable Health Monitor | IoT Environmental Sensor Node |
|---|---|
|
Use Scenario: Continuous ECG/PPG sensing powered by CR2032 coin cell with 10-year target lifetime. IC Role / Device Role / Timing Role: Primary 2.8V supply for analog front-end and BLE SoC during active and sleep cycles. Use Value: 0.02µA standby current extends battery life beyond 10 years; discharge function prevents sensor bias leakage during BLE disconnect. |
Use Scenario: Battery-operated soil moisture and temperature node deployed in agricultural fields for 3+ years. IC Role / Device Role / Timing Role: Regulated 2.8V rail for low-power ADC, microcontroller, and LoRa transceiver. Use Value: 0.25µA IQ minimizes self-discharge; ±1% accuracy ensures consistent ADC reference across seasonal temperature swings. |
| Smart Camera Module | Industrial Wireless Transmitter |
|
Use Scenario: Miniaturized USB-C powered camera with always-on motion detection and low-power wake-up. IC Role / Device Role / Timing Role: Secondary LDO supplying image sensor bias and ISP core logic during standby. Use Value: Fast EN-controlled turn-on (<10µs) synchronizes with motion-triggered wake; discharge avoids image artifacts from residual VOUT. |
Use Scenario: DIN-rail mounted vibration sensor transmitting data via NB-IoT every 15 minutes. IC Role / Device Role / Timing Role: Stable 2.8V source for MEMS accelerometer, microcontroller, and RF transceiver during burst transmission. Use Value: 150mA capability supports peak RF transmit current; 0.19V dropout enables use with aging 3.0V Li-SOCl₂ primary cells. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2802E/TT | No output discharge; 1.6µA IQ; SOT23-3 package; 250mA output. | Lacks active discharge - unsuitable for strict rail-sequence control or leakage-critical systems. | Select only if discharge is unnecessary and higher IQ is acceptable for cost-sensitive consumer designs. |
| Torex XC6210B282MR-G | Includes discharge; 0.6µA IQ; SOT25-5 package; 200mA output; 1.0% accuracy. | Higher IQ than AP7354D; larger SOT25 footprint increases board area by 2.8× vs. X2-DFN1010-4. | Prefer when higher output current is required and space constraints allow SOT25; avoid for ultra-miniaturized wearables. |
Compared with MCP1700T-2802E/TT and XC6210B282MR-G, the AP7354D-28FS4-7 uniquely combines sub-µA quiescent current, integrated discharge, and 1.0mm² DFN packaging - making it optimal for space- and energy-constrained edge nodes where both leakage control and miniaturization are mandatory.
Availability
AP7354D-28FS4-7 is available at Aetrix Electronics and suitable for wearable electronics, IoT sensor modules, and wireless communication devices requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for AP7354D-28FS4-7 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-reliability power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.
The AP7354 series targets ultra-low-power battery-operated systems - emphasizing quiescent current optimization, small-footprint packaging, and robust performance across extended temperature ranges for edge-sensing applications.
FAQ
What is the minimum input voltage required for AP7354D-28FS4-7 to maintain regulation at 150mA load?
The minimum input voltage is calculated as VOUT + VDO = 2.8V + 0.19V = 2.99V (typical). At worst-case 0.40V dropout (max spec), VIN must be ≥3.20V to sustain 150mA output. Below this, output voltage drops linearly with input.
Does AP7354D-28FS4-7 require an external pull-up on the EN pin for default-on operation?
No external pull-up is required. To enable continuous operation, tie EN directly to VIN. The EN pin has no internal pull-up; floating EN is undefined and violates absolute maximum ratings - always connect to a defined voltage rail or controller GPIO.
Can AP7354D-28FS4-7 be used with tantalum output capacitors instead of ceramic?
No. The AP7354D-28FS4-7 is optimized for ceramic capacitors with ESR <100mΩ. Tantalum capacitors typically exhibit higher ESR and risk instability or oscillation. Only X5R/X7R ceramics meeting the 0.1µF minimum and low-ESR requirements are recommended per datasheet Section 10.
Is the X2-DFN1010-4 (Type B) package lead-free and RoHS-compliant?
Yes. AP7354D-28FS4-7 is fully RoHS 3 compliant (2015/863/EU), lead-free, halogen-free, and antimony-free per Diodes Incorporated's "Green" definition - containing <900ppm Br, <900ppm Cl, and <1000ppm Sb compounds.
AP7354D-28FS4-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 4-XDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.4V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 0.6 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X2-DFN1010-4 (Type B)
AP7354D-28FS4-7 FAQ
1.How can I place an order for AP7354D-28FS4-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7354D-28FS4-7 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 AP7354D-28FS4-7 reliable?
The price and inventory of AP7354D-28FS4-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7354D-28FS4-7 is usually 5 days.
3.What payment methods are accepted for AP7354D-28FS4-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7354D-28FS4-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7354D-28FS4-7?
AP7354D-28FS4-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7354D-28FS4-7 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 AP7354D-28FS4-7?
For technical support, including AP7354D-28FS4-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7354D-28FS4-7 requirements.
6.How does Aetrix verify that AP7354D-28FS4-7 is sourced from the original manufacturer or authorized distributors?
All AP7354D-28FS4-7 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 AP7354D-28FS4-7 meets industry standards.
7.What is the process for return or replacement of AP7354D-28FS4-7?
All AP7354D-28FS4-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7354D-28FS4-7, 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 AP7354D-28FS4-7 part is unused and in its original packaging.
Return procedure for AP7354D-28FS4-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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