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Diodes Incorporated AP7354-15FS4-7
- Part No.:
- AP7354-15FS4-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
AP7354-15FS4-7.pdf
- Description:
- IC REG LINEAR 1.5V 150MA 4DFN
- Quantity:
- Payment:
- Shipping:
Inventory:575
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Product details
Overview
AP7354-15FS4-7 from Diodes Incorporated is a 1.5V fixed-output, 150mA ultra-low quiescent current (0.25µA typical) LDO regulator in X2-DFN1010-4 (Type B) package, featuring ±1% output voltage accuracy over temperature, 2.0V–5.5V input range, and enable-controlled shutdown with 0.02µA standby current. It delivers stable power to low-power sensor nodes and wearable electronics where battery life extension is critical.
For engineers reviewing the AP7354-15FS4-7 datasheet, AP7354-15FS4-7 pinout, AP7354-15FS4-7 application, or AP7354-15FS4-7 equivalent, key selection criteria include dropout voltage at 150mA (0.43V typ), EN logic thresholds (0.4V low / 1.0V high), active discharge availability (not present in non-D variant), thermal resistance (295°C/W J-A), and compatibility with 0.1µF ceramic input/output capacitors.
Technical Context
The AP7354-15FS4-7 integrates a precision voltage reference, error amplifier, current-limit protection, and CMOS enable circuitry-enabling precise regulation and controlled startup/shutdown. Its internal resistor network fixes VOUT at 1.5V without external feedback components.
Designed for battery-constrained systems, it operates across –40°C to +85°C ambient, maintains ±1% output accuracy at 1mA load and +25°C, and achieves 0.43V typical dropout at 150mA output-enabling operation down to VIN = 1.93V while sustaining regulated 1.5V output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±1% at +25°C; ±2% over –40°C to +85°C - ensures stable MCU core or sensor biasing without calibration. |
| Max Output Current | 150mA - supports moderate-current peripherals like BLE radios or image sensors in compact wearables. |
| Quiescent Current | 0.25µA typical - extends shelf life and runtime in always-on IoT endpoints (e.g., environmental monitors). |
| Dropout Voltage | 0.43V typical at 150mA - allows operation from single-cell Li-ion (3.0V min) or two alkaline cells (2.4V min) with margin. |
| Input Voltage Range | 2.0V to 5.5V - compatible with wide-range sources including USB, boost converters, and multi-cell batteries. |
| Enable Thresholds | VEN(H) ≥ 1.0V, VEN(L) ≤ 0.4V - interfaces directly with 1.8V/3.3V GPIO without level-shifting. |
| Thermal Resistance θJA | 295°C/W - requires minimal PCB copper area in X2-DFN1010-4 footprint for thermal management under full load. |
Pinout & Package
X2-DFN1010-4 (Type B) is a 1.0mm × 1.0mm, 0.39mm height, 4-terminal leadless package with exposed thermal pad (no electrical connection). Pin 1 (VOUT) and Pin 2 (GND) are adjacent on one side; Pin 3 (EN) and Pin 4 (VIN) occupy the opposite side. GND must be connected via the dedicated pin-not through the center pad-to ensure proper grounding and EMI control.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | VOUT | Regulated 1.5V output; requires 0.1µF ceramic capacitor placed within 2mm of this pin and GND for stability. |
| Pin 2 | GND | Primary ground return path; must connect directly to system ground plane-center pad is not electrically tied to GND. |
| Pin 3 | EN | Active-high enable; floating state is undefined-must be pulled to VIN or GND via ≥100kΩ resistor to avoid erratic startup. |
| Pin 4 | VIN | Input supply (2.0–5.5V); requires 0.1µF decoupling capacitor between VIN and GND, placed adjacent to this pin. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 0.25µA typical enables >1-year battery life in 10µA average-load IoT sensors using CR2032 cells. |
| ±1% output accuracy | Ensures reliable operation of 1.5V-tolerant analog sensors (e.g., MEMS accelerometers) without post-production trimming. |
| Wide 2.0V–5.5V input range | Supports direct connection to unregulated battery rails (e.g., 2×AA, LiPo, or USB-fed intermediate supplies). |
| Enable-controlled shutdown | Reduces system standby current to 0.02µA-critical for wake-on-event architectures in wearable health monitors. |
| Robust ESD protection | 4kV HBM rating allows handling in standard assembly environments without special ESD controls. |
Applications
| Wearable Health Monitor | IoT Environmental Sensor Node |
|---|---|
|
Use Scenario: Continuous heart-rate monitoring using optical PPG sensor and BLE SoC in wrist-worn device. IC Role / Device Role / Timing Role: Primary 1.5V supply for analog front-end and digital logic; enables low-power sleep/wake cycles via EN pin. Use Value: 0.25µA quiescent current extends CR2032 battery life beyond 6 months during continuous sensing mode. |
Use Scenario: Battery-powered soil moisture and temperature node transmitting data hourly via LoRaWAN. IC Role / Device Role / Timing Role: Regulated 1.5V rail for microcontroller and capacitive sensor interface; EN pin synchronized with radio transmit burst. Use Value: 0.43V dropout allows operation down to 1.93V input-maximizing usable capacity from 2×AA alkaline cells. |
| Smart Camera Module | Industrial Wireless Sensor Transmitter |
|
Use Scenario: Ultra-compact HD camera module in security tag with motion-triggered capture. IC Role / Device Role / Timing Role: Stable 1.5V supply for image sensor bias and ISP core; fast EN turn-on (<10µs) enables rapid wake-from-sleep imaging. Use Value: ±1% output accuracy prevents gain drift in analog signal chain, maintaining consistent image exposure calibration. |
Use Scenario: DIN-rail mounted vibration sensor transmitting data every 5 seconds in factory automation. IC Role / Device Role / Timing Role: Power source for MEMS accelerometer and RS-485 transceiver; withstands industrial -40°C to +85°C ambient. Use Value: 295°C/W θJA and SMT-compatible X2-DFN1010-4 footprint allow conduction cooling through PCB without heatsink. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1502E/TT | 1.5V fixed, 250mA, 1.8µA IQ, SOT-23-5 - higher quiescent current, higher output current, same accuracy. | Less suitable for multi-year battery life; better for higher-current bursts (e.g., camera flash LED drivers). | Select if peak load exceeds 150mA but ultra-low IQ is secondary. |
| TPS78015QDSERQ1 | 1.5V fixed, 150mA, 0.5µA IQ, WSON-6 - AEC-Q100 qualified, automotive-grade, 0.5µA IQ (2× AP7354). | Required for automotive cabin sensors; overqualified for consumer wearables due to cost and qualification overhead. | Select only when IATF 16949 compliance and PPAP documentation are mandatory. |
Compared with MCP1700T-1502E/TT and TPS78015QDSERQ1, AP7354-15FS4-7 uniquely balances sub-µA quiescent current, 150mA capability, and ultra-compact DFN footprint-making it optimal for space- and energy-constrained portable electronics where automotive qualification is unnecessary.
Availability
AP7354-15FS4-7 is available at Aetrix Electronics and suitable for wearable health monitors, IoT environmental sensor nodes, smart camera modules, and industrial wireless sensor transmitters requiring stable component supply with guaranteed long-term continuity.
Supply support for AP7354-15FS4-7 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 belongs to Diodes' ultra-low-IQ LDO family, engineered specifically for battery-operated edge devices demanding multi-year runtime without compromising output precision or transient response.
FAQ
Does AP7354-15FS4-7 include active output discharge?
No. AP7354-15FS4-7 is the non-discharge variant (standard AP7354). Active output discharge is only available in AP7354D-15FS4-7, which adds an internal NMOS switch between VOUT and GND during shutdown. This part's VOUT floats after disable, requiring external discharge circuitry if rapid VOUT decay is needed.
What is the minimum recommended output capacitance for stability?
The AP7354-15FS4-7 is stable with a minimum 0.1µF X5R or X7R ceramic capacitor placed within 2mm of VOUT and GND pins. Larger values (e.g., 1–10µF) improve transient response for pulsed loads but are not required for basic regulation stability.
Can the EN pin be left unconnected?
No. The EN pin must never float-it must be actively driven high (≥1.0V) to enable regulation or pulled low (≤0.4V) to enter shutdown. Leaving it unconnected risks unpredictable behavior, including partial enable states or oscillation due to noise coupling.
Is AP7354-15FS4-7 RoHS and REACH compliant?
Yes. AP7354-15FS4-7 is fully RoHS 3 (2015/863/EU) compliant, lead-free, halogen-free, and antimony-free per Diodes' "Green" definition (<900ppm Br, <900ppm Cl, <1000ppm Sb), with moisture sensitivity level 1 per J-STD-020.
AP7354-15FS4-7 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):
- 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.75V @ 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
AP7354-15FS4-7 FAQ
1.How can I place an order for AP7354-15FS4-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7354-15FS4-7 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 AP7354-15FS4-7 reliable?
The price and inventory of AP7354-15FS4-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7354-15FS4-7 is usually 5 days.
3.What payment methods are accepted for AP7354-15FS4-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7354-15FS4-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7354-15FS4-7?
AP7354-15FS4-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7354-15FS4-7 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 AP7354-15FS4-7?
For technical support, including AP7354-15FS4-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7354-15FS4-7 requirements.
6.How does Aetrix verify that AP7354-15FS4-7 is sourced from the original manufacturer or authorized distributors?
All AP7354-15FS4-7 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 AP7354-15FS4-7 meets industry standards.
7.What is the process for return or replacement of AP7354-15FS4-7?
All AP7354-15FS4-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7354-15FS4-7, 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 AP7354-15FS4-7 part is unused and in its original packaging.
Return procedure for AP7354-15FS4-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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