My Inquiry
My Account
Diodes Incorporated AP7370-15W5-7
- Part No.:
- AP7370-15W5-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7370-15W5-7.pdf
- Description:
- IC REG LINEAR 1.5V 300MA SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:1,304
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AP7370-15W5-7 from Diodes Incorporated is a 1.5V fixed-output, 300mA ultra-low dropout (ULDO) linear regulator in SOT25 package, featuring 18V max input voltage, 500mV dropout at 100mA, ±1% output accuracy, and reverse current protection-designed for power rail regulation in portable instrumentation and battery-powered USB peripherals.
For engineers reviewing the AP7370-15W5-7 datasheet, AP7370-15W5-7 pinout, AP7370-15W5-7 application, or AP7370-15W5-7 equivalent, this device supports low-noise, high-PSRR analog subsystems where input-to-output differential headroom is constrained and thermal performance in compact layouts is critical.
Technical Context
The AP7370-15W5-7 integrates a precision voltage reference, error amplifier, and current-limit circuit to maintain stable 1.5V output across -40°C to +125°C junction temperature with ≤0.5% load regulation and 0.05%/V line regulation. Its internal thermal shutdown activates at +160°C with +20°C hysteresis.
It operates with ceramic capacitors as low as 1.0µF on input and output, supports reverse current blocking down to <1µA, and draws only 1.5–2.5µA quiescent current at zero load-enabling multi-day battery life in always-on sensor nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±1% (±2.5% over full temp range), enabling direct powering of 1.5V logic or analog rails without external feedback. |
| Max Input Voltage | 18V - supports single-cell LiFePO₄, dual-cell alkaline, or unregulated wall adapters up to 18V without external pre-regulation. |
| Dropout Voltage | 500mV @ 100mA - allows operation with only 2.0V input for 1.5V output, critical for deep-discharge battery operation. |
| Quiescent Current | 1.5–2.5µA - minimizes standby power loss in battery-backed real-time clocks or memory retention circuits. |
| Current Limit | 200mA (for VOUT ≤ 2.5V) - protects downstream circuitry during short-circuit events while maintaining safe thermal margin in SOT25. |
| Thermal Shutdown | +160°C activation with +20°C hysteresis - prevents permanent damage during sustained overload or poor PCB heatsinking. |
| Reverse Current Protection | Blocks <1µA reverse current when VOUT > VIN - eliminates backfeed risk in multi-rail systems with shared outputs. |
Pinout & Package
SOT25 (W5) package: 5-pin surface-mount, thermally enhanced plastic body (3.0mm × 2.8mm × 1.3mm), with exposed pad not electrically connected (non-GND). Pin 1 = VIN, Pin 2 = GND, Pin 3 = VOUT, Pins 4–5 = NC (no internal connection).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Main input supply connection; accepts 3.2–18V DC; requires ≥1µF ceramic input capacitor for stability. |
| 2 | GND | Analog ground reference for regulator core; must be low-impedance path to system ground plane. |
| 3 | VOUT | Regulated 1.5V output; drives load up to 300mA; requires ≥1µF ceramic output capacitor for transient response. |
| 4, 5 | NC | No internal connection; may be left floating or tied to GND for mechanical stability-no electrical function. |
Key Features
| Feature | Design Value |
|---|---|
| Wide input range (3.2–18V) | Eliminates need for pre-regulator stages in mixed-voltage systems powered by variable sources like solar chargers or industrial 12V rails. |
| Ultra-low quiescent current (1.5µA) | Extends shelf life and operational runtime in coin-cell–powered devices such as portable meters or wireless sensors. |
| Low ESR ceramic capacitor compatibility | Reduces BOM cost and board area by avoiding tantalum or electrolytic capacitors; enables 0402/0603 footprint designs. |
| Reverse current blocking | Prevents unintended discharge paths in stacked-battery or hot-swap configurations where multiple regulators share common output buses. |
| Thermal shutdown with hysteresis | Provides autonomous fault recovery without external monitoring circuitry-critical for sealed or inaccessible deployments. |
Applications
| Portable Weighing Scales | Battery-Powered Data Loggers |
|---|---|
Use Scenario: Compact handheld scales using 2xAA batteries and 1.5V ADC reference circuitry. IC Role / Device Role / Timing Role: Primary 1.5V analog supply for 24-bit sigma-delta ADC and load-cell signal chain. Use Value: Maintains ±1% output accuracy across battery discharge (1.8–3.0V input), ensuring consistent measurement resolution without recalibration. |
Use Scenario: Low-power environmental sensor node logging temperature/humidity every 5 minutes on CR2032 coin cell. IC Role / Device Role / Timing Role: Always-on 1.5V rail for RTC, EEPROM, and microcontroller sleep-state retention. Use Value: 1.5µA quiescent current extends 3-year battery life; reverse current blocking prevents self-discharge during MCU wake cycles. |
| USB-Powered Test Instruments | Industrial Handheld Meters |
Use Scenario: Portable multimeter drawing power from USB-C PD source (5–20V) with internal 1.5V display driver IC. IC Role / Device Role / Timing Role: Post-regulator converting variable USB PD voltage to stable 1.5V for LCD bias and op-amp references. Use Value: 18V input rating accommodates full USB PD range; 500mV dropout ensures regulation even at lowest USB-C voltages (5V). |
Use Scenario: Ruggedized handheld meter operating from 9V alkaline or 12V vehicle supply in field service environments. IC Role / Device Role / Timing Role: Main 1.5V supply for precision analog front-end and isolated communication interface. Use Value: Thermal shutdown and +125°C operating range ensure reliability in unventilated enclosures exposed to ambient temperatures up to 70°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ULDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1502E/TT (Microchip) | 150mA max output, 6µA IQ, 1.5V ±2% accuracy, SOT23-3 package | Limited to lower-current analog sensors; lacks reverse current protection and thermal hysteresis | Select when board space is constrained and load current stays below 150mA; verify thermal derating in enclosed housings. |
| TPS7A0515PDBVR (TI) | 200mA max output, 25µA IQ, 1.5V ±1%, SOT23-5 with EN pin, no reverse current blocking | Requires external enable control; higher IQ reduces battery life in always-on use cases | Choose if system-level power sequencing is required via EN pin; avoid where reverse feed-through must be eliminated. |
Compared with MCP1700T-1502E/TT and TPS7A0515PDBVR, the AP7370-15W5-7 delivers higher output current (300mA vs ≤200mA), lower quiescent current (1.5µA vs ≥6µA), and integrated reverse current blocking-making it uniquely suited for high-accuracy, battery-constrained instrumentation where both performance and protection are non-negotiable.
Availability
AP7370-15W5-7 is available at Aetrix Electronics and suitable for portable weighing scales, USB-powered test instruments, and industrial handheld meters requiring stable component supply with long-term lifecycle support.
Supply support for AP7370-15W5-7 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 semiconductor company specializing in discrete, analog, and mixed-signal solutions for power management, signal integrity, and connectivity applications.
The AP7370 series belongs to Diodes' high-performance ULDO regulator product line, engineered specifically for battery-powered and USB-supplied instrumentation where precision, low dropout, and ultra-low IQ are essential.
FAQ
What is the maximum continuous output current for AP7370-15W5-7?
The AP7370-15W5-7 is rated for 300mA continuous output current under recommended operating conditions (TJ ≤ +125°C, VIN ≤ 18V). At 100mA load, its dropout voltage is 500mV; current limit is set to 200mA for 1.5V output versions to ensure thermal safety in the SOT25 package.
Does AP7370-15W5-7 require an external enable signal?
No. The AP7370-15W5-7 has no enable (EN) pin and operates continuously when VIN is within 3.2–18V. It features built-in chip enable functionality tied internally to VIN threshold detection-no external control lines are needed for basic regulation.
Can AP7370-15W5-7 be used with ceramic capacitors smaller than 1.0µF?
No. The datasheet specifies minimum 1.0µF ceramic capacitors on both input and output for stability and transient response. Using smaller values risks oscillation or excessive output ripple, especially under dynamic load steps typical in portable instrumentation.
Is AP7370-15W5-7 RoHS and halogen-free compliant?
Yes. AP7370-15W5-7 meets EU Directive 2015/863/EU (RoHS 3), contains <900ppm bromine and chlorine combined, <1000ppm antimony, and is fully lead-free per Diodes Incorporated's Green standard-verified by material declarations and manufacturing process controls.
AP7370-15W5-7 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):
- 18V
- Voltage - Output (Min/Fixed):
- 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- 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
AP7370-15W5-7 FAQ
1.How can I place an order for AP7370-15W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7370-15W5-7 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 AP7370-15W5-7 reliable?
The price and inventory of AP7370-15W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7370-15W5-7 is usually 5 days.
3.What payment methods are accepted for AP7370-15W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7370-15W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7370-15W5-7?
AP7370-15W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7370-15W5-7 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 AP7370-15W5-7?
For technical support, including AP7370-15W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7370-15W5-7 requirements.
6.How does Aetrix verify that AP7370-15W5-7 is sourced from the original manufacturer or authorized distributors?
All AP7370-15W5-7 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 AP7370-15W5-7 meets industry standards.
7.What is the process for return or replacement of AP7370-15W5-7?
All AP7370-15W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7370-15W5-7, 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 AP7370-15W5-7 part is unused and in its original packaging.
Return procedure for AP7370-15W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP7370-15W5-7 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
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…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…
Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …
Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.
Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…
