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

Diodes Incorporated AP7361C-15D-13

Name: AP7361C-15D-13
Brand: Diodes Incorporated
SKU: AP7361C-15D-13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AP7361C-15D-13

Manufacturer:: Diodes Incorporated

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

Package:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Datasheet:: AP7361C-15D-13.pdf

Description:: IC REG LINEAR 1.5V 1A TO252

Quantity:: RFQ Add To RFQ list

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Product details

Overview

AP7361C-15D-13 from Diodes Incorporated is a 1A fixed-output (1.5V) ultra-low dropout linear regulator with enable, designed for power rail regulation in space-constrained and battery-sensitive systems. It delivers ±1% output accuracy, 360mV dropout at 1A (for 3.3V variant; 1.5V dropout is 600mV typ), 60µA quiescent current, and integrates thermal shutdown, fold-back short-circuit protection (400mA), and current limit (1.5A). It powers core logic rails in LCD-TVs and set-top boxes.

For engineers reviewing the AP7361C-15D-13 datasheet, AP7361C-15D-13 pinout, AP7361C-15D-13 application, or AP7361C-15D-13 equivalent, key selection criteria include dropout voltage at 1.5V output, EN pin logic thresholds (VIH = 1.0V min), thermal resistance of TO252 package (95°C/W), stability with ≥2.2µF MLCC output capacitors, and compatibility with no-load operation.

Technical Context

The AP7361C-15D-13 uses a PMOS pass transistor architecture enabling ultra-low dropout and high PSRR (75dB @ 1kHz). Its internal 0.8V bandgap reference feeds an error amplifier that regulates output via adjustable or fixed feedback-here hardwired to 1.5V using internal resistor network.

Enable control is active-high with 1.0V minimum VIH and 0.3V maximum VIL; internal 3.0MΩ EN pull-down ensures default-off behavior. Protection includes fold-back current limiting (400mA short-circuit clamp), thermal shutdown at 150°C with 20°C hysteresis, and input overvoltage tolerance up to 6.5V.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 1.5V ±1% - ensures stable core supply for 1.5V I/O or low-voltage logic without external resistors.
Max Output Current	1.0A continuous - supports moderate-power digital subsystems like HDMI PHY or audio DACs.
Dropout Voltage	600mV typical at 1A (1.5V output) - enables regulation from 2.1V input, critical for single-cell Li-ion or 2.5V system rails.
Quiescent Current	60µA typical - minimizes standby power loss in always-on consumer electronics.
PSRR	75dB @ 1kHz - suppresses switching noise from upstream DC/DC converters feeding the LDO input.
Thermal Shutdown	150°C threshold with 20°C hysteresis - prevents permanent damage during sustained overload or poor PCB heatsinking.
EN Logic Thresholds	VIH ≥ 1.0V, VIL ≤ 0.3V - compatible with 1.8V/3.3V GPIO without level-shifting.

Pinout & Package

AP7361C-15D-13 is packaged in TO252 (DPAK), a thermally enhanced surface-mount package with exposed thermal pad. Pin 1 = IN, Pin 2 = GND, Pin 3 = OUT - no EN or ADJ pins are bonded out in this fixed-output DPAK variant per datasheet pin assignment table.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (IN)	Input voltage supply	Accepts 2.2V–6.0V; requires ≥1µF ceramic bypass capacitor placed adjacent to pin for noise immunity.
Pin 2 (GND)	Power ground reference	Common return path for input/output currents; must connect directly to low-impedance ground plane.
Pin 3 (OUT)	Regulated 1.5V output	Delivers up to 1A; requires ≥2.2µF ceramic output capacitor near pin for stability and transient response.

Key Features

Feature	Design Value
Ultra-low dropout architecture	600mV typ @ 1A (1.5V output) enables operation from marginal input rails like partially discharged batteries.
Integrated enable with pull-down	3.0MΩ internal EN pull-down ensures safe power-up state; eliminates need for external pull-down resistor.
Fold-back short-circuit protection	Limits output to ~400mA during short, reducing power dissipation and preventing thermal runaway.
Stability with low-ESR capacitors	Guaranteed stable with ≥2.2µF MLCCs - avoids bulkier, higher-ESR electrolytics and saves board space.
No minimum load requirement	Remains regulated and stable at zero load - ideal for intermittent-use peripherals in standby mode.

Applications

LCD-TV Power Management

Set-Top Box Core Rail

Use Scenario: Supplies 1.5V to HDMI receiver ICs and video processing SoC I/O banks in flat-panel TV mainboards.

IC Role / Device Role / Timing Role: Primary post-regulator delivering clean, low-noise 1.5V from intermediate 3.3V or 5V DC/DC output.

Use Value: 75dB PSRR rejects noise from upstream switching converters, preventing video artifacts and HDCP handshake failures.

Use Scenario: Powers 1.5V DDR memory interface and tuner demodulator logic in cable/satellite STB designs.

IC Role / Device Role / Timing Role: Fixed-output LDO providing tightly regulated voltage for timing-critical memory and RF signal paths.

Use Value: ±1% output accuracy ensures reliable DDR I/O voltage margining across temperature and line variations.

Smart Home Appliance Control

Portable Media Player Audio

Use Scenario: Delivers 1.5V to microcontroller I/O banks and sensor interface circuitry in Wi-Fi-enabled kitchen appliances.

IC Role / Device Role / Timing Role: Always-on LDO supporting low-power MCU sleep modes while maintaining real-time clock and wake-up interrupt integrity.

Use Value: 60µA quiescent current extends battery backup runtime beyond 1 year in mains-powered devices with supercapacitor hold-up.

Use Scenario: Regulates 1.5V for high-fidelity audio DAC and headphone amplifier stages in battery-powered media players.

IC Role / Device Role / Timing Role: Low-noise analog supply rail decoupling sensitive audio signal chains from noisy digital domains.

Use Value: Ultra-low dropout allows full 1.5V output even as Li-ion cell voltage drops to 3.0V, preserving audio dynamic range until shutdown.

Equivalent & Alternatives

The following parts are listed as comparable options for similar fixed-output LDO regulator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MCP1700T-1502E/MB	250mA max output, 6µA IQ, SOT23-5 package - lower current, much lower quiescent current.	Suitable only for ultra-low-power microcontrollers or sensors, not 1A loads.	Select when load current < 250mA and battery life is paramount; not drop-in for AP7361C-15D-13's 1A capability.
TLS850B2TEV50	Automotive-grade (AEC-Q100), 500mA, integrated watchdog and reset - higher reliability, lower current, more features.	Designed for automotive body electronics requiring functional safety; not optimized for consumer cost or footprint.	Choose for automotive infotainment or ADAS modules needing qualification; over-specified for consumer STBs or TVs.

Compared with MCP1700T-1502E/MB and TLS850B2TEV50, the AP7361C-15D-13 uniquely balances 1A output, 60µA IQ, TO252 thermal performance (95°C/W), and consumer-grade cost-making it optimal for high-volume, space-constrained 1.5V rail generation where automotive qualification or sub-100µA IQ are unnecessary.

Availability

AP7361C-15D-13 is available at Aetrix Electronics and suitable for LCD-TV power management, set-top box core rail regulation, and smart home appliance control requiring stable component supply, consistent parametric performance, and long-term production continuity.

Supply support for AP7361C-15D-13 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 AP7361C belongs to Diodes' high-performance LDO portfolio targeting consumer and industrial power rails, emphasizing ultra-low dropout, low IQ, and robust protection for battery-powered and compact electronics.

FAQ

What is the maximum input voltage rating for AP7361C-15D-13?

The absolute maximum input voltage is 6.5V. Operation above this risks permanent damage. For reliable continuous use, the recommended maximum is 6.0V per datasheet operating conditions. Exceeding 6.0V-even briefly-may trigger thermal shutdown or degrade long-term reliability due to increased power dissipation in the TO252 package.

Does AP7361C-15D-13 require an external resistor divider for 1.5V output?

No. The "-15" suffix denotes factory-trimmed fixed 1.5V output; internal feedback resistors are laser-adjusted during production. No external ADJ resistors are needed or supported-pin 4 (ADJ/NC) is unconnected in the TO252 package per datasheet pin mapping.

Can AP7361C-15D-13 be used without an enable signal?

Yes. Since the TO252 package lacks an EN pin (as confirmed in pin assignment tables), the device operates continuously when powered. There is no enable functionality in this variant-unlike U-DFN3030-8 or SO-8EP versions-so it functions as a simple, always-on LDO.

What output capacitor value is required for stability with AP7361C-15D-13?

A minimum 2.2µF ceramic capacitor is required on the output for guaranteed stability across temperature and load. Larger values (e.g., 4.7µF–10µF) improve load transient response and reduce output ripple. Tantalum or polymer capacitors may be used if ESR is within 10–100mΩ, but MLCCs are preferred for lowest ESR and smallest footprint.

AP7361C-15D-13 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Packaging:: Tape & Reel (TR)

Product Status:: Active

Output Configuration:: Positive

Output Type:: Fixed

Number of Regulators:: 1

Voltage - Input (Max):: 6V

Voltage - Output (Min/Fixed):: 1.5V

Voltage - Output (Max):: -

Voltage Dropout (Max):: 0.57V @ 1A (Typ)

Current - Output:: 1A

Current - Quiescent (Iq):: 80 µA

Current - Supply (Max):: -

PSRR:: 75dB ~ 55dB (1kHz ~ 10kHz)

Control Features:: -

Protection Features:: Over Current, Over Temperature

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-252-3

AP7361C-15D-13 FAQ

1.How can I place an order for AP7361C-15D-13 through Aetrix?

Please submit a Request for Quotation (RFQ) for AP7361C-15D-13 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 AP7361C-15D-13 reliable?

The price and inventory of AP7361C-15D-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7361C-15D-13 is usually 5 days.

3.What payment methods are accepted for AP7361C-15D-13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7361C-15D-13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AP7361C-15D-13?

AP7361C-15D-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AP7361C-15D-13 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 AP7361C-15D-13?

For technical support, including AP7361C-15D-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7361C-15D-13 requirements.

6.How does Aetrix verify that AP7361C-15D-13 is sourced from the original manufacturer or authorized distributors?

All AP7361C-15D-13 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 AP7361C-15D-13 meets industry standards.

7.What is the process for return or replacement of AP7361C-15D-13?

All AP7361C-15D-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP7361C-15D-13, 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 AP7361C-15D-13 part is unused and in its original packaging.

Return procedure for AP7361C-15D-13:

1.Submit a request within 90 days.

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

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