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Diodes Incorporated AP7354-15W5-7
- Part No.:
- AP7354-15W5-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7354-15W5-7.pdf
- Description:
- IC REG LIN 1.5V SOT25 T&R 3K
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
AP7354-15W5-7 from Diodes Incorporated is a 150mA ultra-low quiescent current (0.25µA typical) fixed-output 1.5V LDO regulator in SOT25 package, featuring ±1% output voltage accuracy over temperature, 2.0V–5.5V input range, and enable-controlled shutdown for battery-sensitive applications.
For engineers reviewing the AP7354-15W5-7 datasheet, AP7354-15W5-7 pinout, AP7354-15W5-7 application, or AP7354-15W5-7 equivalent, key selection criteria include dropout voltage at 150mA (0.43V max at VOUT=1.5V), active discharge capability (enabled in SOT25 variant), thermal resistance (162°C/W), and compatibility with 0.1µF ceramic input/output capacitors.
Technical Context
The AP7354-15W5-7 integrates a precision voltage reference, error amplifier, current-limit circuit, and logic-level enable input-enabling precise regulation and low-power state control. Its architecture supports stable operation with minimal external components: only 0.1µF CIN and COUT are required.
It delivers 150mA output while maintaining ±1% accuracy across –40°C to +85°C ambient, with line regulation of 0.02%/V and load regulation of ±40mV (1–150mA). The device enters ultra-low standby mode (0.02µA) when EN is pulled low.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±1% at +25°C; ±2% over full temperature range - ensures stable biasing for low-voltage microcontrollers and sensors. |
| Quiescent Current | 0.25µA typical - extends battery life in always-on wearable and IoT sensor nodes by minimizing idle power draw. |
| Dropout Voltage | 0.43V max at 150mA (VOUT = 1.5V) - enables regulation from 1.93V input, critical for single-cell Li-ion or alkaline systems. |
| Input Voltage Range | 2.0V to 5.5V - supports direct connection to common battery sources (1×Li-ion, 2×alkaline, USB-powered rails). |
| Enable Threshold | VEN(H) ≥ 1.0V, VEN(L) ≤ 0.4V - 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 under standard PCB layout. |
Pinout & Package
SOT25 package (3.0mm × 2.8mm × 1.3mm), surface-mount, 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 to suppress supply noise and transients. |
| 2 | GND | Analog/digital ground reference; requires low-impedance PCB connection to system ground plane to minimize regulation error and EMI. |
| 3 | VOUT | Regulated 1.5V 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; drives regulator ON/OFF; must not float - tie to VIN if always-on operation is required. |
| 5 | GND | Second ground terminal; electrically tied internally to Pin 2 - improves thermal dissipation and reduces ground loop impedance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 0.25µA typical - enables >1-year battery life in coin-cell–powered devices drawing <1µA average current. |
| Output discharge function | Integrated NMOS discharge path (35Ω typical) - rapidly discharges VOUT when disabled, preventing residual voltage from interfering with downstream logic sequencing. |
| High accuracy over temperature | ±1% at +25°C, ±2% over –40°C to +85°C - eliminates need for post-regulation trimming in precision analog sensor chains. |
| Robust ESD protection | 4kV HBM, 400V MM - withstands handling and board assembly without additional protection circuitry. |
| Stability with small ceramics | Guaranteed stable with 0.1µF X5R/X7R output capacitor - reduces BOM count and PCB area vs. legacy LDOs requiring bulk capacitance. |
Applications
| Wearable Fitness Tracker | IoT Environmental Sensor Node |
|---|---|
Use Scenario: Continuous heart-rate monitoring using optical sensor and BLE SoC powered by CR2032 coin cell. IC Role / Device Role / Timing Role: Primary 1.5V supply for analog front-end and digital core; enabled/disabled synchronously with measurement cycles. Use Value: 0.25µA quiescent current extends battery life beyond 12 months; output discharge prevents false wake-up from residual VOUT during sleep. |
Use Scenario: Battery-operated temperature/humidity sensor transmitting data hourly via LoRaWAN. IC Role / Device Role / Timing Role: Stable 1.5V rail for MCU, sensor IC, and RF transceiver; EN controlled by MCU to gate power during deep-sleep intervals. Use Value: ±1% output accuracy ensures consistent ADC reference and sensor excitation; 0.43V dropout allows operation down to 1.93V battery voltage. |
| Wireless Camera Module | Medical Patch Monitor |
Use Scenario: Miniaturized HD camera module in smart glasses, powered by single-cell Li-ion (3.0–4.2V). IC Role / Device Role / Timing Role: Low-noise 1.5V supply for image signal processor and memory interface; fast turn-on/turn-off (<10µs) supports burst capture mode. Use Value: 162°C/W θJA and 0.1µF stability margin allow compact layout without thermal derating; EN pin enables precise power sequencing with FPGA or ASIC. |
Use Scenario: Disposable ECG patch worn for 72-hour continuous cardiac monitoring using AAA alkaline cells. IC Role / Device Role / Timing Role: Primary regulated supply for analog front-end, low-power MCU, and Bluetooth LE radio; shutdown during inter-measurement gaps. Use Value: 0.02µA standby current minimizes self-discharge during 99% idle time; ±2% accuracy over temperature maintains clinical-grade signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-1502E/TO | 100mA output, 1.6µA quiescent current, TO-92 package - higher IQ, lower current, through-hole mounting. | Limited to sub-100mA loads; unsuitable for high-transient camera modules or multi-sensor nodes. | Select only for cost-sensitive, low-current, non-space-constrained designs where SOT25 footprint is unnecessary. |
| Torex XC6206P152MR-G | 150mA output, 1µA quiescent current, SOT23-3 package - no EN pin, no discharge, smaller footprint but no control interface. | Cannot support sequenced power-down or rapid VOUT discharge; lacks enable flexibility for duty-cycled systems. | Choose when board space is critical and enable/discharge functionality is not required - e.g., simple always-on sensor biasing. |
Compared with MCP1700-1502E/TO and XC6206P152MR-G, the AP7354-15W5-7 uniquely combines 150mA drive, 0.25µA IQ, integrated EN control, and active discharge in a thermally optimized SOT25 package - making it the only option meeting all four requirements simultaneously for next-gen ultra-low-power wearables.
Availability
AP7354-15W5-7 is available at Aetrix Electronics and suitable for wearable electronics, IoT sensor nodes, and wireless camera modules requiring stable component supply with guaranteed long-term manufacturability and RoHS/Green compliance.
Supply support for AP7354-15W5-7 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, energy-efficient power management and signal integrity solutions for consumer, industrial, and automotive markets.
The AP7354 belongs to Diodes' ultra-low-IQ LDO family, designed specifically for extended-battery-life applications in wearables, medical patches, and edge IoT devices where micropower operation and precision regulation are mandatory.
FAQ
What is the maximum output current and corresponding dropout voltage for AP7354-15W5-7?
The AP7354-15W5-7 delivers up to 150mA output current. At this load and VOUT = 1.5V, the dropout voltage is guaranteed ≤0.43V (typical 0.60V), meaning VIN must be ≥1.93V for regulation. This value is confirmed in the Electrical Characteristics table (DS39918 Rev. 5-2, p.4) under "Dropout Voltage" test condition IOUT = 150mA.
Does AP7354-15W5-7 include output discharge, and how is it implemented?
Yes - the AP7354-15W5-7 (SOT25 variant) includes active output discharge. When EN is pulled low, an internal 35Ω NMOS switch connects VOUT to GND, discharging external capacitance rapidly. This feature is absent in SOT23 versions and explicitly enabled in the W5-packaged "D" variants (e.g., AP7354D-15W5-7); however, the non-D suffix part still provides discharge per datasheet footnote 10 and Pin Description table.
Can AP7354-15W5-7 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 ensure stability and transient response across temperature and load. Using smaller values risks oscillation or poor load-step recovery, as validated in the Application Information section (p.10) and Performance Characteristics plots (pp.7–9).
Is AP7354-15W5-7 qualified for automotive applications?
No - the AP7354-15W5-7 is not AEC-Q100 qualified. The datasheet explicitly states that automotive-grade versions require separate qualification (AEC-Q100/101/200), PPAP capability, and IATF 16949 manufacturing - and directs users to contact Diodes' automotive team for such parts. This device is intended for commercial/industrial use only.
AP7354-15W5-7 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):
- 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:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
AP7354-15W5-7 FAQ
1.How can I place an order for AP7354-15W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7354-15W5-7 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 AP7354-15W5-7 reliable?
The price and inventory of AP7354-15W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7354-15W5-7 is usually 5 days.
3.What payment methods are accepted for AP7354-15W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7354-15W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7354-15W5-7?
AP7354-15W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7354-15W5-7 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 AP7354-15W5-7?
For technical support, including AP7354-15W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7354-15W5-7 requirements.
6.How does Aetrix verify that AP7354-15W5-7 is sourced from the original manufacturer or authorized distributors?
All AP7354-15W5-7 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 AP7354-15W5-7 meets industry standards.
7.What is the process for return or replacement of AP7354-15W5-7?
All AP7354-15W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7354-15W5-7, 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 AP7354-15W5-7 part is unused and in its original packaging.
Return procedure for AP7354-15W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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