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Diodes Incorporated AP7354-25W5-7
- Part No.:
- AP7354-25W5-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7354-25W5-7.pdf
- Description:
- IC REG LIN 2.5V SOT25 T&R 3K
- Quantity:
- Payment:
- Shipping:
Inventory:2,805
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Product details
Overview
AP7354-25W5-7 from Diodes Incorporated is a 2.5V fixed-output, 150mA ultra-low quiescent current LDO regulator in SOT25 package, featuring ±1% output accuracy, 0.25µA quiescent current, and enable control. It delivers stable power to low-power wearable sensors and IoT edge nodes where battery life extension is critical.
For engineers reviewing the AP7354-25W5-7 datasheet, AP7354-25W5-7 pinout, AP7354-25W5-7 application, or AP7354-25W5-7 equivalent, key selection considerations include dropout voltage at 150mA (0.22V typ), EN logic thresholds (0.4V low / 1.0V high), output discharge capability (enabled in W5 variant), and thermal resistance (162°C/W).
Technical Context
The AP7354-25W5-7 integrates a precision voltage reference, error amplifier, current-limit circuit, and active enable input-enabling precise regulation with minimal external components. Its architecture supports fast load transient response (<50µs recovery) and maintains stability with only 0.1µF ceramic input/output capacitors.
It operates across 2.0V–5.5V input range and sustains 2.5V output under full 150mA load with dropout as low as 0.22V (typ). The device includes built-in output discharge (EN-driven), ESD protection (>4kV HBM), and latch-up immunity (>400mA), meeting industrial reliability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±1% at +25°C; ±2% over -40°C to +85°C - ensures consistent MCU core or sensor biasing without trimming. |
| Max Output Current | 150mA - sufficient for BLE SoCs, MEMS sensors, and low-power microcontrollers in compact wearables. |
| Quiescent Current | 0.25µA (typ) - extends coin-cell battery life to multi-year operation in always-on sensing applications. |
| Dropout Voltage | 0.22V (typ) at 150mA - enables regulation from 2.72V input, preserving usable voltage range of aging Li-ion or alkaline cells. |
| 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) - allows 150mA operation up to +85°C ambient with minimal derating. |
| ESD Protection | >4000V HBM - eliminates need for external TVS in space-constrained portable designs. |
Pinout & Package
SOT25 package: 5-pin surface-mount plastic package (3.0mm × 2.8mm × 1.3mm), lead-free, RoHS-compliant, with tin-plated leads solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Main power input; must be decoupled with ≥0.1µF ceramic capacitor placed adjacent to pin. |
| 2 | GND | Analog/digital ground reference; requires low-impedance connection to PCB ground plane. |
| 3 | VOUT | Regulated 2.5V output; connects directly to load; output discharge path active when EN = low. |
| 4 | EN | Active-high enable; drives regulator ON/OFF; must not float - tie to VIN if unused. |
| 5 | GND | Second ground terminal; improves thermal dissipation and reduces ground bounce in high-transient loads. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ | 0.25µA typical - enables >10-year battery life in 10µA average-load IoT sensors. |
| Output Discharge | Integrated MOSFET discharges VOUT when EN = low - prevents residual voltage from interfering with system reset sequencing. |
| High Accuracy | ±1% initial tolerance at +25°C - eliminates need for post-production calibration in precision analog front-ends. |
| Stability with Small Caps | Stable with 0.1µF X5R/X7R ceramics - reduces BOM count and PCB area vs. traditional LDOs requiring 1–10µF. |
| Wide Input Range | 2.0V to 5.5V - supports single-cell Li-ion, LiFePO₄, two-cell alkaline, and USB-powered systems. |
Applications
| Wearable Health Monitor | IoT Environmental Sensor Node |
|---|---|
Use Scenario: Continuous ECG/PPG signal acquisition powered by CR2032 coin cell. IC Role / Device Role / Timing Role: Primary 2.5V supply for analog front-end and low-power MCU during sleep/active cycles. Use Value: 0.25µA quiescent current extends battery life beyond 3 years; output discharge ensures clean power-down between measurements. |
Use Scenario: Battery-powered soil moisture and temperature node transmitting via LoRaWAN every 15 minutes. IC Role / Device Role / Timing Role: Stable 2.5V rail for ADC reference and RF transceiver biasing during brief transmit bursts. Use Value: 150mA peak current supports simultaneous sensor readout and radio wake-up; 0.22V dropout preserves headroom down to 2.72V battery voltage. |
| Smart Camera Module | Industrial Wireless Transmitter |
Use Scenario: Miniaturized HD camera module in AR glasses with motion-triggered capture. IC Role / Device Role / Timing Role: Dedicated 2.5V supply for image sensor interface and ISP core logic. Use Value: Fast turn-on/off timing (<10µs) enables precise power gating synchronized to frame capture windows. |
Use Scenario: DIN-rail mounted vibration sensor transmitting data via NB-IoT in factory settings. IC Role / Device Role / Timing Role: Regulated 2.5V source for MEMS accelerometer and modem baseband IC. Use Value: ±2% output accuracy over -40°C to +85°C ensures consistent sensor gain calibration across operating temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-quiescent-current LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-2502E/TO | 250mA rated, 1.6µA IQ, TO-92 package - higher quiescent current, through-hole mounting. | Lacks enable pin and output discharge; unsuitable for dynamic power-gating architectures. | Select only for legacy through-hole designs where board rework is prohibitive and 1.6µA IQ is acceptable. |
| Torex XC6206P252MR-G | 150mA rated, 1µA IQ, SOT23-3 - no enable pin, no discharge, smaller footprint but lower ESD rating (2kV HBM). | Requires external enable circuitry for shutdown; less robust in handling ESD-prone handheld environments. | Consider for cost-sensitive, space-constrained applications where enable control and high ESD immunity are non-critical. |
Compared with MCP1700-2502E/TO and XC6206P252MR-G, the AP7354-25W5-7 uniquely combines sub-µA quiescent current, integrated enable/discharge, and 4kV HBM ESD in a compact SOT25 - making it optimal for next-generation battery-powered edge devices demanding both longevity and robustness.
Availability
AP7354-25W5-7 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 AP7354-25W5-7 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 power management, signal integrity, and protection solutions for industrial, consumer, and automotive markets.
The AP7354 belongs to Diodes' ultra-low-IQ LDO family, engineered specifically for energy-constrained battery-operated systems where extended runtime and small form factor are primary design constraints.
FAQ
What is the minimum input voltage required for 2.5V output regulation at 150mA?
The AP7354-25W5-7 requires VIN ≥ 2.72V (2.5V + 0.22V dropout) to maintain regulation at full 150mA load. At lighter loads, it regulates down to 2.0V input, but dropout increases nonlinearly below 2.72V under full load.
Does AP7354-25W5-7 require an external pull-up on the EN pin?
No external pull-up is required. The EN pin has no internal pull-up; it must be actively driven high (≥1.0V) to enable or low (≤0.4V) to disable. If unused, connect EN directly to VIN to ensure permanent enable - floating EN causes undefined behavior.
Can AP7354-25W5-7 be used with ceramic output capacitors smaller than 0.1µF?
No. The datasheet specifies stability with ≥0.1µF X5R/X7R ceramic capacitors. Using smaller values risks oscillation due to insufficient phase margin; capacitance reduction also degrades load transient response and increases output ripple.
Is the second GND pin (Pin 5) electrically distinct from Pin 2?
No - Pins 2 and 5 are internally bonded to the same die ground. Pin 5 provides additional thermal conduction and lower-inductance ground return, improving thermal performance and reducing ground bounce during fast load transients.
AP7354-25W5-7 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):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.48V @ 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
AP7354-25W5-7 FAQ
1.How can I place an order for AP7354-25W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7354-25W5-7 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 AP7354-25W5-7 reliable?
The price and inventory of AP7354-25W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7354-25W5-7 is usually 5 days.
3.What payment methods are accepted for AP7354-25W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7354-25W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7354-25W5-7?
AP7354-25W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7354-25W5-7 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 AP7354-25W5-7?
For technical support, including AP7354-25W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7354-25W5-7 requirements.
6.How does Aetrix verify that AP7354-25W5-7 is sourced from the original manufacturer or authorized distributors?
All AP7354-25W5-7 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 AP7354-25W5-7 meets industry standards.
7.What is the process for return or replacement of AP7354-25W5-7?
All AP7354-25W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7354-25W5-7, 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 AP7354-25W5-7 part is unused and in its original packaging.
Return procedure for AP7354-25W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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