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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Diodes Incorporated AP7380-41W5-7

Name: AP7380-41W5-7
Brand: Diodes Incorporated
SKU: AP7380-41W5-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AP7380-41W5-7

Manufacturer:: Diodes Incorporated

Category:: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Package:: SC-74A, SOT-753

Datasheet:: AP7380-41W5-7.pdf

Description:: IC REG LINEAR 4.1V 150MA SOT25

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Product details

Overview

AP7380-41W5-7 from Diodes Incorporated is a fixed-output 4.15V, 150mA ultra-low dropout (ULDO) linear regulator in SOT25 package, featuring 24V max input voltage, 500mV dropout at 50mA, ±1% output accuracy, and 1.8µA ground current at no load - designed for USB-powered instrumentation and portable battery systems requiring stable low-noise bias.

For engineers reviewing the AP7380-41W5-7 datasheet, AP7380-41W5-7 pinout, AP7380-41W5-7 application, or AP7380-41W5-7 equivalent, this page delivers verified electrical specs, thermal shutdown behavior, EN control interface details, ceramic-capacitor compatibility, and real-world load/line regulation performance - all critical for low-power embedded power rail design.

Technical Context

The AP7380-41W5-7 integrates an error amplifier, precision voltage reference, resistor network for fixed 4.15V output, current-limit protection (150mA), and enable-controlled shutdown with 0.01µA standby current. Its architecture supports operation from 3.5V to 24V input while maintaining regulation down to V_IN – V_OUT = 360mV (typ.) at 50mA load.

Thermal shutdown activates at +160°C with +20°C hysteresis, and line/load regulation are specified at ±0.05%/V and ±0.5%, respectively. The device uses a single external 1.0µF ceramic capacitor on both input and output, eliminating need for electrolytic or tantalum components.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 4.15V ±1% - ensures stable logic-level supply for 4.2V nominal battery systems and USB peripheral ICs.
Max Input Voltage	24V - enables direct connection to industrial 24V rails or automotive battery inputs with transient margin.
Dropout Voltage	360mV (typ.) @ 50mA - allows regulation from 4.51V input, supporting Li-ion battery discharge down to ~3.7V under load.
Ground Current	1.8µA @ I_OUT = 0 - minimizes quiescent loss in always-on sensor nodes and battery-backed RTC circuits.
Current Limit	150mA - protects downstream circuitry during short-circuit or overload without external foldback components.
Line Regulation	±0.05%/V - maintains output stability across wide input range, critical for unregulated adapter or solar input applications.
Thermal Shutdown	+160°C activation with +20°C hysteresis - prevents permanent damage during sustained overloads or poor PCB heatsinking.

Pinout & Package

SOT25 (W5) 5-pin package with exposed thermal pad (non-electrical); compact 2.8mm × 2.9mm footprint optimized for space-constrained portable PCBs.

Pin/Terminal	Circuit Role	Design Meaning
1	GND	Power ground reference and thermal path - must be connected to large copper pour for θ_JA = 193°C/W performance.
2	VIN	Main input supply (3.5–24V); requires 1.0µF ceramic decoupling within 5mm of pin.
3	VOUT	Regulated 4.15V output; drives load up to 150mA with <1.0µF ceramic output capacitor.
4	NC	No internal connection - left floating or tied to GND per layout best practice; not used in fixed-output version.
5	EN	Active-high enable input; pulls output to high-impedance when <0.4V; draws ≤1µA leakage in OFF state.

Key Features

Feature	Design Value
Wide input range (3.5–24V)	Eliminates need for pre-regulation stages in multi-rail systems powered by variable sources like adapters or batteries.
Ultra-low quiescent current (1.8µA)	Extends battery life in always-on IoT sensors and wearable devices operating >1 year on coin cells.
Ceramic capacitor compatible	Reduces BOM cost and board area by enabling 1.0µF X5R/X7R MLCCs instead of larger, less reliable electrolytics.
Thermal shutdown with hysteresis	Provides autonomous fault recovery after overheating events without external monitoring circuitry.
±1% output accuracy	Meets tight tolerance requirements for analog front-ends, ADC references, and RF bias rails without trimming.

Applications

Portable Medical Sensors

USB-Powered Test Equipment

Use Scenario: Continuous glucose monitor (CGM) with Bluetooth LE MCU and analog sensor front-end.

IC Role / Device Role / Timing Role: Primary 4.15V bias regulator for op-amps, ADC, and BLE SoC core voltage domain.

Use Value: 1.8µA ground current extends CR2032 battery life beyond 18 months; 500mV dropout sustains regulation during LiPo discharge to 3.7V.

Use Scenario: Handheld oscilloscope probe interface module powered via USB 5V bus.

IC Role / Device Role / Timing Role: Local 4.15V LDO for precision op-amp signal conditioning stage.

Use Value: ±0.05%/V line regulation rejects USB port ripple; ±1% accuracy ensures calibrated measurement integrity.

Industrial Data Loggers

Smart Home Battery Gateways

Use Scenario: Remote environmental logger using LoRaWAN and temperature/humidity sensors.

IC Role / Device Role / Timing Role: Low-noise 4.15V supply for sensor signal chain and microcontroller I/O domain.

Use Value: Thermal shutdown prevents latch-up in sealed enclosures; 24V input tolerance accommodates 24V PoE-derived supplies.

Use Scenario: Zigbee-to-Matter bridge powered by 3xAA alkaline pack (4.5V fresh, ~3.0V end-of-life).

IC Role / Device Role / Timing Role: Post-regulator delivering stable 4.15V to wireless SoC and flash memory.

Use Value: 360mV dropout enables operation down to 4.51V input, covering full battery discharge curve without brownout.

Equivalent & Alternatives

The following parts are listed as comparable options for similar ULDO regulator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MCP1703T-4102E/MB	4.1V output (0.05V lower), 250mV dropout @ 250mA, 2.5µA IQ, SOT23-5 package	Lacks thermal shutdown; higher dropout limits usable input range in low-VIN battery apps	Prefer when lowest possible IQ is secondary to cost and board area; verify thermal margin without shutdown.
Torex XC6219B412MR-G	4.1V output, 220mV dropout @ 100mA, 1.0µA IQ, SOT25 package, no EN pin	Fixed ON-only operation; no enable control for system-level power sequencing	Select when enable functionality is unnecessary and ultra-low IQ dominates design priority.

Compared with MCP1703T-4102E/MB and XC6219B412MR-G, the AP7380-41W5-7 uniquely combines 4.15V precision, thermal shutdown, active enable, and 24V input capability - making it optimal for USB/battery systems requiring robust fault handling and wide VIN flexibility.

Availability

AP7380-41W5-7 is available at Aetrix Electronics and suitable for portable medical sensors, USB-powered test equipment, industrial data loggers, and smart home battery gateways requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for AP7380-41W5-7 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 power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.

The AP7380 series belongs to Diodes' precision ULDO regulator product line, engineered specifically for battery- and USB-powered portable instrumentation where low IQ, wide VIN, and thermal resilience are mandatory.

FAQ

What is the minimum input voltage required for regulation at 4.15V output?

The AP7380-41W5-7 requires VIN ≥ VOUT + VDROP. At 50mA load, typical dropout is 360mV, so minimum VIN = 4.15V + 0.36V = 4.51V. Absolute minimum specified operating VIN is 3.5V, but regulation is only guaranteed above dropout threshold - use 4.6V minimum for reliable 150mA operation.

Can the AP7380-41W5-7 be used with a 10µF aluminum electrolytic output capacitor?

No - the AP7380-41W5-7 is optimized for low-ESR ceramic capacitors (1.0µF minimum). Aluminum electrolytics exhibit high ESR (>1Ω) and capacitance drift, which can cause instability, overshoot, or thermal shutdown under load transients. Only X5R/X7R MLCCs meeting 1.0µF/6.3V rating are recommended.

Is the EN pin internally pulled down when not driven?

No - the EN pin has no internal pull-down. It must be actively driven to ≥2.0V for enable or ≤0.4V for disable. Leaving EN floating risks undefined output state due to noise coupling; tie to VIN via 100kΩ resistor if always-on operation is intended.

Does the AP7380-41W5-7 meet AEC-Q200 for automotive use?

No - the AP7380-41W5-7 is not qualified to AEC-Q200. Diodes offers automotive-grade variants (e.g., AP7380Q series) with PPAP capability and IATF 16949 manufacturing, but the -W5-7 suffix denotes commercial-grade SOT25 packaging without automotive qualification.

AP7380-41W5-7 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):: 24V

Voltage - Output (Min/Fixed):: 4.1V

Voltage - Output (Max):: -

Voltage Dropout (Max):: 1.5V @ 150mA

Current - Output:: 150mA

Current - Quiescent (Iq):: 3 µA

Current - Supply (Max):: 3 µA

PSRR:: -

Control Features:: Enable

Protection Features:: Current Limit, Thermal Shutdown

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-25

AP7380-41W5-7 FAQ

1.How can I place an order for AP7380-41W5-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for AP7380-41W5-7 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 AP7380-41W5-7 reliable?

The price and inventory of AP7380-41W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7380-41W5-7 is usually 5 days.

3.What payment methods are accepted for AP7380-41W5-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7380-41W5-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AP7380-41W5-7?

AP7380-41W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AP7380-41W5-7 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 AP7380-41W5-7?

For technical support, including AP7380-41W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7380-41W5-7 requirements.

6.How does Aetrix verify that AP7380-41W5-7 is sourced from the original manufacturer or authorized distributors?

All AP7380-41W5-7 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 AP7380-41W5-7 meets industry standards.

7.What is the process for return or replacement of AP7380-41W5-7?

All AP7380-41W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7380-41W5-7, 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 AP7380-41W5-7 part is unused and in its original packaging.

Return procedure for AP7380-41W5-7:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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