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Diodes Incorporated AP7370-30W5-7
- Part No.:
- AP7370-30W5-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7370-30W5-7.pdf
- Description:
- IC REG LINEAR 3V 300MA SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:1,558
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Product details
Overview
AP7370-30W5-7 from Diodes Incorporated is a 3.0V fixed-output, 300mA ultra-low dropout (ULDO) linear regulator in SOT25 package. It delivers ±1% output voltage accuracy over load/temperature, features 500mV dropout at 100mA, 1.5–2.5µA quiescent current, and reverse current protection - enabling stable power for USB-powered instrumentation and portable battery systems.
For engineers reviewing the AP7370-30W5-7 datasheet, AP7370-30W5-7 pinout, AP7370-30W5-7 application, or AP7370-30W5-7 equivalent, key selection criteria include input voltage range (3.2–18V), thermal shutdown threshold (+160°C), low-ESR ceramic capacitor compatibility, and NC pin handling in fixed-output configuration.
Technical Context
The AP7370-30W5-7 integrates a precision voltage reference, error amplifier, resistor network for fixed 3.0V output, current-limit circuit (350mA min), chip enable logic, and thermal shutdown with +20°C hysteresis. Its architecture supports operation down to 3.2V input while maintaining regulation up to 18V.
It provides reverse current protection to prevent backfeed when VOUT > VIN, achieves 0.05%/V line regulation and 0.5% load regulation, and operates across –40°C to +125°C junction temperature with 155°C/W θJA in SOT25.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0V ±1% (ensures stable MCU core or sensor rail under varying load/temperature) |
| Max Input Voltage | 18V (supports wide-input industrial or automotive-supplied systems) |
| Dropout Voltage | 500mV @ 100mA (enables regulation from 3.5V input for 3.0V rail) |
| Quiescent Current | 1.5–2.5µA (minimizes battery drain in always-on portable devices) |
| Current Limit | 350mA min (protects IC and source during short-circuit or overload) |
| Thermal Shutdown | +160°C with +20°C hysteresis (prevents latch-up and enables safe recovery) |
| Line Regulation | 0.05%/V (maintains tight output stability across full input range) |
| ESD Rating | HBM: 6kV, CDM: 1.5kV (robust handling in manufacturing and field environments) |
Pinout & Package
SOT25 (W5) package: 5-pin surface-mount, 2.8 × 2.9 × 1.3 mm body height, exposed pad not present, RoHS-compliant, halogen- and antimony-free "Green" construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Main input supply connection; accepts 3.2–18V DC with transient tolerance |
| 2 | GND | Analog/digital ground reference; must be low-impedance PCB plane |
| 3 & 4 | NC | No-connect pins; left unconnected per fixed-output version design |
| 5 | VOUT | Regulated 3.0V output; requires ≥1.0µF ceramic capacitor for stability |
Key Features
| Feature | Design Value |
|---|---|
| Wide Input Range | 3.2–18V operation enables single-regulator support across multiple battery chemistries and adapter inputs |
| Ultra-Low IQ | 1.5–2.5µA ground current extends runtime in coin-cell or energy-harvesting applications |
| Reverse Current Protection | Blocks backflow from VOUT to VIN when input is absent or low - critical for multi-rail sequencing |
| Ceramic Cap Compatible | Stable with ≥1.0µF X5R/X7R ceramic output capacitor - eliminates bulkier tantalum or electrolytic parts |
| Thermal + Short-Circuit Protection | Integrated shutdown and current limit prevent damage during sustained overload or PCB thermal stress |
Applications
| Battery-Powered Instrumentation | Portable Weighing Scales |
|---|---|
Use Scenario: Handheld digital multimeters and portable oscilloscopes powered by 2×AA or Li-ion cells. IC Role / Device Role / Timing Role: Primary 3.0V LDO supplying microcontroller, ADC, and display driver rails. Use Value: 500mV dropout allows full regulation down to 3.5V input, extending usable battery life by >15% versus higher-dropout alternatives. | Use Scenario: Compact benchtop or retail weighing scales using alkaline or rechargeable batteries. IC Role / Device Role / Timing Role: Stable 3.0V bias for strain-gauge signal conditioning and low-power MCU sleep/wake cycles. Use Value: 1.5µA quiescent current reduces standby power draw to <5µW, enabling >1-year shelf life on 2×AA cells. |
| Laptop Peripheral Modules | Metering Data Loggers |
Use Scenario: USB-C powered external sensors (e.g., environmental monitors) attached to laptops or tablets. IC Role / Device Role / Timing Role: Input-stage regulator converting variable USB PD voltage (5–18V) to clean 3.0V system rail. Use Value: 18V max input and ±1% accuracy ensure reliable operation across USB PD profiles without external pre-regulation. | Use Scenario: Industrial electricity or water metering units operating on primary lithium batteries for 10+ years. IC Role / Device Role / Timing Role: Power management for real-time clock, EEPROM, and pulse-counting circuitry during deep-sleep mode. Use Value: Reverse current protection prevents battery self-discharge through VOUT when main supply is disconnected or failed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP7375-30W5-7 | Successor part with same pinout; improved PSRR (65dB vs 55dB @ 1kHz), lower dropout (400mV @ 100mA), and extended temp range (–40°C to +150°C) | Recommended for new designs requiring higher noise immunity or extended thermal margin | Select AP7375-30W5-7 where long-term availability and enhanced performance justify redesign effort |
| MCP1703T-3002E/MB | Microchip 3.0V LDO; 600mV dropout @ 250mA, 2.5µA IQ, but no reverse current protection or thermal hysteresis | Suitable for cost-sensitive, non-critical consumer applications without backfeed risk | Choose only if reverse current blocking and thermal recovery behavior are not required |
Compared with AP7370-30W5-7, AP7375-30W5-7 offers measurable improvements in PSRR and thermal resilience without layout change, while MCP1703T-3002E/MB trades protection features for lower unit cost in benign environments.
Availability
AP7370-30W5-7 is available at Aetrix Electronics and suitable for battery-powered instrumentation, portable weighing scales, and USB-powered peripheral modules requiring stable component supply and long-lifecycle support.
Supply support for AP7370-30W5-7 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 company specializing in discrete, analog, and mixed-signal solutions, with design centers across Asia, Europe, and the US.
The AP7370 series belongs to Diodes' high-reliability ULDO regulator product line, engineered specifically for space-constrained, wide-input portable and industrial instrumentation where low IQ, reverse current blocking, and robust thermal protection are mandatory.
FAQ
What is the recommended input capacitor for AP7370-30W5-7?
A minimum 1.0µF X5R or X7R ceramic capacitor is required at VIN, placed within 2mm of the IC. This ensures stability under fast load transients and suppresses high-frequency noise from upstream sources like switching converters or USB ports.
Can AP7370-30W5-7 be used with input voltages below 3.2V?
No - the absolute minimum input voltage is 3.2V per datasheet specifications. Operation below this level risks loss of regulation, increased dropout, or undefined behavior. For sub-3.2V applications, consider the AP7361 series or other low-VIN LDOs.
Why are pins 3 and 4 marked NC in the SOT25 package?
Pins 3 and 4 are internally unconnected in the fixed-output AP7370-30W5-7 variant. They exist for pin compatibility with adjustable versions (e.g., AP7370-ADJ) but must remain floating - no external connection or pull-up/down is permitted.
Is AP7370-30W5-7 suitable for automotive applications?
While it meets AEC-Q200 stress test conditions for temperature cycling and humidity, AP7370-30W5-7 is not AEC-Q100 qualified and lacks automotive-grade screening or PPAP documentation. It may be used in non-safety-critical aftermarket accessories but not in ASIL-B or higher systems.
AP7370-30W5-7 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):
- 18V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.6V @ 100mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 2.5 µA
- Current - Supply (Max):
- 300 µA
- PSRR:
- -
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature, Reverse Current, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
AP7370-30W5-7 FAQ
1.How can I place an order for AP7370-30W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7370-30W5-7 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 AP7370-30W5-7 reliable?
The price and inventory of AP7370-30W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7370-30W5-7 is usually 5 days.
3.What payment methods are accepted for AP7370-30W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7370-30W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7370-30W5-7?
AP7370-30W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7370-30W5-7 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 AP7370-30W5-7?
For technical support, including AP7370-30W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7370-30W5-7 requirements.
6.How does Aetrix verify that AP7370-30W5-7 is sourced from the original manufacturer or authorized distributors?
All AP7370-30W5-7 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 AP7370-30W5-7 meets industry standards.
7.What is the process for return or replacement of AP7370-30W5-7?
All AP7370-30W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7370-30W5-7, 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 AP7370-30W5-7 part is unused and in its original packaging.
Return procedure for AP7370-30W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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