My Inquiry
My Account
Diodes Incorporated AP7375-30W5-7
- Part No.:
- AP7375-30W5-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7375-30W5-7.pdf
- Description:
- IC REG LIN 3V 300MA SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:5,417
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AP7375-30W5-7 from Diodes Incorporated is a 3.0V fixed-output, wide-input (3–45V), 300mA ultra-low-dropout linear regulator in SOT25 package with 2.1μA quiescent current, 35mV dropout at 10mA, and integrated enable pin rated to 45V. It delivers stable power to microcontrollers and sensors in battery-powered smoke detectors.
For engineers reviewing the AP7375-30W5-7 datasheet, AP7375-30W5-7 pinout, AP7375-30W5-7 application, or AP7375-30W5-7 equivalent, key selection criteria include input voltage range up to 45V, ±2% output accuracy, thermal shutdown behavior, EN pin voltage tolerance, and SOT25 thermal resistance (153°C/W).
Technical Context
The AP7375-30W5-7 uses a PMOS pass transistor architecture enabling ultra-low dropout and fast transient response without external compensation. Its EN pin accepts up to 45V directly-eliminating level-shifting circuitry when interfacing with high-voltage supply rails.
Internal protection includes current limiting (500mA typical) and thermal shutdown triggered at +150°C with +20°C hysteresis. The device maintains no overshoot during start-up and short-circuit recovery, verified under 300mA load transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0V ±2% - ensures compatibility with 3.3V-tolerant I/O and 3.0V microcontroller cores without margin risk. |
| Input Voltage Range | 3V to 45V - supports direct connection to automotive batteries (12V/24V), industrial 24V/36V rails, and LiFePO₄ stacks. |
| Max Output Current | 300mA - sufficient for ARM Cortex-M0+ MCUs, BLE radios, and analog sensor signal chains simultaneously. |
| Dropout Voltage | 35mV @ 10mA / 350mV @ 100mA - enables regulation down to VIN = 3.035V at light load, critical for end-of-battery-life operation. |
| Quiescent Current | 2.1μA typ. - extends shelf life of smoke detectors and remote sensors beyond 10 years on primary lithium cells. |
| PSRR | 85dB @ 1kHz - suppresses switching noise from upstream DC/DC converters feeding noisy 12V or 24V inputs. |
| Thermal Resistance θJA | 153°C/W (SOT25) - requires ≥25mm² copper pour for full 300mA operation at +85°C ambient. |
Pinout & Package
SOT25 package (3.0mm × 2.8mm × 1.3mm) with exposed thermal pad (EP); JEDEC-standard footprint optimized for thermal dissipation via PCB copper area connected to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Main input supply rail (3–45V); must be decoupled with ≥1μF ceramic capacitor placed adjacent to pin. |
| 2 | GND | Power ground reference; connects internally to EP for thermal conduction; forms low-impedance return path for output current. |
| 3 | VOUT | Regulated 3.0V output; requires ≥10μF ceramic capacitor (X7R/X5R) placed within 2mm of pin for stability. |
| 4 | NC | No internal connection; recommended to tie to GND to maximize thermal copper area on PCB. |
| 5 | EN | Enable control input; active-high, logic threshold 1V min / 0.4V max; accepts up to 45V directly-no external resistor divider needed. |
| 6 | EP | Exposed thermal pad; not electrically functional as GND electrode-must be soldered to ≥25mm² copper pour connected to system GND for thermal management. |
Key Features
| Feature | Design Value |
|---|---|
| Wide VIN range (3–45V) | Eliminates need for pre-regulation stages in industrial 24V or automotive 12V/24V systems. |
| 2.1μA quiescent current | Enables >10-year battery life in always-on smoke detectors using CR123A or AA lithium primary cells. |
| No overshoot at startup/recovery | Guarantees safe power sequencing for sensitive microcontrollers and ADCs without external soft-start circuitry. |
| 45V-rated EN pin | Permits direct interface with high-side switch controllers or battery monitor ICs without level translation. |
| ±2% output accuracy | Meets tight VDD tolerance requirements of modern low-power MCUs (e.g., STM32L4, nRF52840) without calibration. |
Applications
| Smoke Detector Power Supply | Industrial Sensor Node |
|---|---|
Use Scenario: Primary power regulation for photoelectric smoke alarms powered by two 3V lithium primary cells (6V nominal, up to 7.2V fresh). IC Role / Device Role / Timing Role: LDO providing clean, stable 3.0V to MCU, optical chamber driver, and RF transceiver during alarm and standby modes. Use Value: 2.1μA IQ extends battery life beyond 10 years; 45V EN pin allows direct connection to battery voltage monitoring circuit without resistive divider. | Use Scenario: Powering a 4–20mA loop-powered temperature transmitter with local digital processing. IC Role / Device Role / Timing Role: Post-regulator delivering precise 3.0V to SAR ADC, RTD interface, and low-power MCU from loop-derived 24V supply. Use Value: 85dB PSRR rejects high-frequency noise from loop drivers; ±2% accuracy ensures <0.1% measurement error in calibrated sensor outputs. |
| Automotive Body Control Module | Home Appliance MCU Subsystem |
Use Scenario: Powering CAN transceiver and wake-up controller in door module, operating across cold-crank (4.5V) to load-dump (40V) conditions. IC Role / Device Role / Timing Role: Input-tolerant LDO supplying 3.0V to wake-up logic and CAN PHY while surviving ISO 7637-2 pulse 5a/b. Use Value: 45V input rating and integrated short-circuit/thermal protection eliminate need for external TVS and fuse in cost-sensitive modules. | Use Scenario: Regulating 3.0V for touch controller, display driver, and Wi-Fi SoC in smart oven or washing machine UI panel. IC Role / Device Role / Timing Role: Low-noise power source isolated from noisy main SMPS supplying motor drivers and heating elements. Use Value: Fast line/load transient response prevents UI freeze during compressor or heater turn-on; SOT25 footprint fits space-constrained front-panel PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP7361-30W5-7 | Lower max input (36V vs. 45V), same 3.0V output, 2.5μA IQ, SOT25 package. | Lacks 45V EN pin; requires external level shift for high-side enable in automotive body electronics. | Select only if input never exceeds 36V and EN voltage stays ≤5V. |
| MCP1703T-3002E/MB | 300mA, 3.0V, 2.0μA IQ, but max input 13.2V; SOT23-5 package; no 45V EN capability. | Not suitable for direct 24V/45V input; requires pre-regulation stage in industrial or automotive use cases. | Choose only for low-voltage battery systems (<13V) where smallest footprint is critical. |
Compared with AP7375-30W5-7, AP7361-30W5-7 trades 9V input headroom for marginally higher IQ, while MCP1703T-3002E/MB sacrifices input range entirely for ultra-small size-making AP7375-30W5-7 uniquely suited for unregulated 24V/45V domains requiring both wide VIN and low IQ.
Availability
AP7375-30W5-7 is available at Aetrix Electronics and suitable for battery-powered equipment, smoke detectors and sensors, and microcontroller applications requiring stable component supply across automotive, industrial, and consumer product lifecycles.
Supply support for AP7375-30W5-7 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 semiconductor manufacturer specializing in discrete, analog, and mixed-signal solutions for power management, signal integrity, and connectivity.
The AP7375 series belongs to Diodes' high-voltage LDO product line, designed specifically for industrial and automotive applications demanding wide input range, ultra-low IQ, and robust protection without external components.
FAQ
What is the minimum input voltage required for regulation at 3.0V output?
The AP7375-30W5-7 requires VIN ≥ 3.035V to maintain regulation at 10mA load (35mV dropout), and VIN ≥ 3.35V at 100mA (350mV dropout). Below these thresholds, output voltage drops linearly with input; the device does not latch or shut down.
Can the EN pin be left floating?
No-EN must be actively driven. Floating EN causes undefined behavior due to internal leakage paths. Tie EN to VIN through a 100kΩ pull-up for default-on operation, or to GND for default-off. Do not leave unconnected.
Is the exposed pad (EP) electrically connected to GND internally?
No-the EP is thermally conductive but electrically isolated. It must be soldered to a PCB copper pour tied to system GND solely for heat dissipation-not as a current-carrying GND node. Using it as a GND electrode risks thermal stress and solder joint failure.
Does AP7375-30W5-7 require an external capacitor on the EN pin?
No external EN capacitor is required or recommended. The EN pin has no internal filtering; adding capacitance introduces turn-on delay and may cause erratic enable behavior during fast-rising supply ramps. Use only resistive pull-up/pull-down networks.
AP7375-30W5-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- AP7375
- 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):
- 45V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.36V @ 100mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 5 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Current Limit, Enable
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
AP7375-30W5-7 FAQ
1.How can I place an order for AP7375-30W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7375-30W5-7 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 AP7375-30W5-7 reliable?
The price and inventory of AP7375-30W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7375-30W5-7 is usually 5 days.
3.What payment methods are accepted for AP7375-30W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7375-30W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7375-30W5-7?
AP7375-30W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7375-30W5-7 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 AP7375-30W5-7?
For technical support, including AP7375-30W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7375-30W5-7 requirements.
6.How does Aetrix verify that AP7375-30W5-7 is sourced from the original manufacturer or authorized distributors?
All AP7375-30W5-7 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 AP7375-30W5-7 meets industry standards.
7.What is the process for return or replacement of AP7375-30W5-7?
All AP7375-30W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7375-30W5-7, 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 AP7375-30W5-7 part is unused and in its original packaging.
Return procedure for AP7375-30W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP7375-30W5-7 Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
