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Diodes Incorporated AP7354-28W5-7
- Part No.:
- AP7354-28W5-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7354-28W5-7.pdf
- Description:
- IC REG LIN 2.8V SOT25 T&R 3K
- Quantity:
- Payment:
- Shipping:
Inventory:7,719
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Product details
Overview
AP7354-28W5-7 from Diodes Incorporated is a fixed 2.8V, 150mA ultra-low quiescent current LDO regulator in SOT25 package, featuring ±1% output accuracy, 0.25µA quiescent current, and enable-controlled shutdown. It delivers stable power to low-power sensor modules and wearable electronics operating from 2.0V–5.5V input sources.
For engineers reviewing the AP7354-28W5-7 datasheet, AP7354-28W5-7 pinout, AP7354-28W5-7 application, or AP7354-28W5-7 equivalent, key selection criteria include dropout voltage at 150mA (0.19V typ), standby current (0.02µA), EN logic thresholds (0.4V low / 1.0V high), and SOT25 thermal resistance (162°C/W).
Technical Context
The AP7354-28W5-7 integrates a precision voltage reference, error amplifier, current-limit circuit, and active-high enable input-enabling precise regulation with minimal external components. Its architecture supports fast load transient response and stable operation with 0.1µF ceramic input/output capacitors.
It operates across –40°C to +85°C ambient temperature, maintains ±2% output accuracy over full temperature range, and features built-in ESD protection (>4kV HBM) and latch-up immunity (>400mA). The device lacks internal output discharge-confirmed by ordering code "W5" (non-D variant) and pinout omission of discharge path.
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. |
| Max Output Current | 150mA - sufficient for BLE SoCs, optical sensors, and low-power microcontrollers without thermal derating in SOT25. |
| Quiescent Current | 0.25µA typ - enables multi-year battery life in always-on IoT endpoints with intermittent wake cycles. |
| Dropout Voltage | 0.19V typ at 150mA - allows regulation from 3.0V supply while maintaining 2.8V output, critical for single-cell Li-ion or coin-cell systems. |
| Enable Thresholds | VEN(H) = 1.0V min, VEN(L) = 0.4V max - compatible with 1.8V/3.3V GPIO without level-shifting. |
| Thermal Resistance | θJA = 162°C/W (SOT25) - limits junction rise to ~25°C above ambient at 150mA, enabling compact PCB layouts. |
| Input Voltage Range | 2.0V to 5.5V - supports direct connection to Li-ion, Li-Po, 3x alkaline, or regulated 3.3V/5V rails. |
Pinout & Package
SOT25 package: 5-pin surface-mount plastic package with exposed pad not connected; dimensions 2.80 × 2.90 × 1.30 mm (L × W × H); RoHS-compliant matte tin plating on leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Main power input; must be decoupled with ≥0.1µF ceramic capacitor placed adjacent to pin to suppress supply noise and prevent instability. |
| 2 | GND | Analog/digital ground reference; requires low-impedance connection to PCB ground plane to minimize PSRR degradation and output ripple. |
| 3 | VOUT | Regulated 2.8V output; connects directly to load; output capacitor (≥0.1µF) must be placed within 2mm of this pin and GND for stability. |
| 4 | EN | Active-high enable; driven high (>1.0V) to activate regulator, low (<0.4V) to enter 0.02µA shutdown - floating state is prohibited. |
| 5 | GND | Second ground terminal; electrically tied to Pin 2 internally; used for improved thermal conduction and reduced ground loop impedance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 0.25µA typical - extends battery runtime in always-on wearables and environmental sensors beyond 5 years on CR2032. |
| High output accuracy | ±1% at +25°C, ±2% over full temperature range - eliminates need for post-regulation trimming in precision analog signal chains. |
| Wide input voltage range | 2.0V to 5.5V - accommodates aging batteries and mixed-supply systems without external pre-regulation. |
| Fast enable/disable timing | Turn-on delay <100µs, turn-off delay <50µs (IOUT = 150mA) - supports dynamic power gating in duty-cycled IoT nodes. |
| Robust reliability | 4kV HBM ESD rating, >400mA latch-up immunity, MSL1 moisture sensitivity - suitable for automated assembly and harsh industrial environments. |
Applications
| Wearable Fitness Tracker | IoT Environmental Sensor Node |
|---|---|
|
Use Scenario: Continuous heart-rate monitoring using optical sensor and BLE MCU powered by coin cell. IC Role / Device Role / Timing Role: Primary 2.8V power rail regulator for analog front-end and radio subsystem. Use Value: 0.25µA quiescent current enables >3-year battery life; ±1% accuracy ensures consistent ADC reference and RF performance. |
Use Scenario: Battery-powered temperature/humidity node transmitting data hourly via LoRaWAN. IC Role / Device Role / Timing Role: Standby power source for microcontroller and sensor interface during sleep intervals. Use Value: 0.02µA shutdown current minimizes leakage between transmissions; 2.0V–5.5V input range supports wide battery voltage swing. |
| Smart Camera Module | Industrial Wireless Transmitter |
|
Use Scenario: Ultra-compact camera module in security tag with motion-triggered capture. IC Role / Device Role / Timing Role: Low-noise 2.8V supply for image sensor and ISP core logic. Use Value: 162°C/W θJA prevents thermal throttling during burst capture; fast load transient response avoids frame corruption. |
Use Scenario: DIN-rail mounted wireless transmitter collecting analog process signals in factory settings. IC Role / Device Role / Timing Role: Isolated auxiliary regulator for digital isolation barrier and RF transceiver. Use Value: ±2% output tolerance over –40°C to +85°C ensures reliable operation in uncontrolled enclosures; SOT25 package supports reflow-compatible assembly. |
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 | 250mA output, 1.6µA quiescent current, TO-92 package - higher IQ, through-hole mounting. | Lacks enable pin; unsuitable for dynamic power cycling - limited to always-on legacy designs. | Select only if through-hole assembly is mandatory and standby current >1µA is acceptable. |
| Torex XC6206P282MR-G | 150mA output, 1.0µA quiescent current, SOT23-3 - no enable, smaller footprint, higher IQ than AP7354. | No shutdown control; fixed 2.8V output only - cannot support sequenced power-up or low-power sleep modes. | Choose only when board space is constrained and enable functionality is unnecessary. |
Compared with MCP1700-2802E/TO and XC6206P282MR-G, the AP7354-28W5-7 uniquely combines ultra-low 0.25µA quiescent current, active-high enable, and SOT25 thermal performance-making it optimal for battery-constrained, dynamically powered systems where both efficiency and controllability are essential.
Availability
AP7354-28W5-7 is available at Aetrix Electronics and suitable for wearable electronics, IoT sensor nodes, and wireless communication modules requiring stable component supply, long-term manufacturability, and RoHS-compliant packaging.
Supply support for AP7354-28W5-7 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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.
The AP7354 belongs to Diodes' ultra-low-IQ LDO family, engineered specifically for extended-battery-life portable and IoT applications where micropower operation and precision regulation are critical.
FAQ
What is the maximum allowable input voltage for AP7354-28W5-7?
The absolute maximum input voltage is 6.0V per the datasheet. However, the recommended operating range is 2.0V to 5.5V. Exceeding 5.5V risks permanent damage even for brief transients; system designers must ensure input filtering or clamping if upstream supplies may overshoot.
Does AP7354-28W5-7 include output discharge functionality?
No. The "W5" suffix indicates the SOT25-packaged non-discharge version (AP7354, not AP7354D). When disabled via EN, the output remains floating - an external bleed resistor or MOSFET is required if rapid VOUT discharge is needed for system safety or sequencing.
Can AP7354-28W5-7 operate with ceramic capacitors smaller than 0.1µF?
No. The datasheet specifies minimum 0.1µF X5R/X7R ceramic capacitors for both CIN and COUT to guarantee stability and transient response. Using smaller values risks oscillation or excessive output ripple, especially under load steps up to 150mA.
Is the center pad on the SOT25 package electrically connected?
No. The center pad on the SOT25 package is not connected internally and must remain unconnected or grounded externally only if required for thermal enhancement - but grounding it does not affect electrical function. Diodes' datasheet explicitly states "No connection or ground" for the center pad.
AP7354-28W5-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- 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:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
AP7354-28W5-7 FAQ
1.How can I place an order for AP7354-28W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7354-28W5-7 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 AP7354-28W5-7 reliable?
The price and inventory of AP7354-28W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7354-28W5-7 is usually 5 days.
3.What payment methods are accepted for AP7354-28W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7354-28W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7354-28W5-7?
AP7354-28W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7354-28W5-7 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 AP7354-28W5-7?
For technical support, including AP7354-28W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7354-28W5-7 requirements.
6.How does Aetrix verify that AP7354-28W5-7 is sourced from the original manufacturer or authorized distributors?
All AP7354-28W5-7 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 AP7354-28W5-7 meets industry standards.
7.What is the process for return or replacement of AP7354-28W5-7?
All AP7354-28W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7354-28W5-7, 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 AP7354-28W5-7 part is unused and in its original packaging.
Return procedure for AP7354-28W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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