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

Diodes Incorporated AP7361-15FGE-7

Name: AP7361-15FGE-7
Brand: Diodes Incorporated
SKU: AP7361-15FGE-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AP7361-15FGE-7

Manufacturer:: Diodes Incorporated

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

Package:: 8-UDFN Exposed Pad

Datasheet:: AP7361-15FGE-7.pdf

Description:: IC REG LINEAR 1.5V 1A 8UDFN

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Product details

Overview

AP7361-15FGE-7 from Diodes Incorporated is a 1A fixed-output (1.5V) ultra-low dropout linear regulator in U-DFN3030-8 package, featuring 70µA typical quiescent current, 500mV dropout at 1A load, and integrated enable control. It delivers stable power to FPGA I/O rails, portable audio subsystems, and battery-powered microcontroller cores where low thermal footprint and fast transient response are critical.

For engineers reviewing the AP7361-15FGE-7 datasheet, AP7361-15FGE-7 pinout, AP7361-15FGE-7 application, or AP7361-15FGE-7 equivalent, key selection criteria include dropout voltage at full load, thermal resistance (θ_JA = 70°C/W), EN pin logic thresholds (V_IL ≤ 0.3V, V_IH ≥ 1.0V), and ceramic capacitor stability with ≥2.2µF output capacitance.

Technical Context

The AP7361-15FGE-7 implements a PMOS pass transistor architecture with internal 0.8V bandgap reference and error amplifier, enabling precise 1.5V output regulation across -40°C to +85°C ambient. Its feedback loop is optimized for stability with ceramic capacitors ≥2.2µF and ESR between 10mΩ and 300mΩ.

Enable functionality is implemented via a dedicated EN pin (Pin 5 in U-DFN3030-8) with active-high logic, 0.01µA max leakage, and hysteresis-free switching. Thermal shutdown activates at ~150°C junction temperature with 20°C hysteresis, while current limiting clamps output at 1.1–1.5A depending on input voltage and temperature.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 1.5V ±1% at 100mA, ±2% over full temperature range - ensures reliable core voltage for 1.5V I/O standards.
Max Output Current	1.0A continuous - supports high-current digital loads such as FPGA banks or multi-core SoC peripherals.
Dropout Voltage	500mV at 1A load - enables operation from 2.0V input (e.g., single Li-ion cell post-regulation) while maintaining regulation.
Quiescent Current	70µA typical - minimizes standby power loss in always-on subsystems like real-time clocks or sensor interfaces.
PSRR	65dB at 1kHz, 45dB at 10kHz - suppresses switching noise from upstream DC/DC converters feeding the LDO input.
Thermal Resistance θ_JA	70°C/W (U-DFN3030-8 on 2"x2" FR-4 with thermal vias) - defines maximum power dissipation before thermal shutdown under defined PCB layout.
Start-Up Time	200µs to 90% of 1.5V output with 1µF output cap - enables rapid wake-up from deep-sleep modes in portable devices.

Pinout & Package

AP7361-15FGE-7 uses the U-DFN3030-8 (3.0mm × 3.0mm, 0.5mm pitch) thermally enhanced package with exposed thermal pad. Pin 1 is OUT; Pin 2 is GND; Pin 3 is ADJ/NC (no connection in fixed-voltage variant); Pin 4 is GND; Pin 5 is EN; Pin 6 is NC; Pin 7 is NC; Pin 8 is IN.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (OUT)	Regulated output	Delivers 1.5V to load; requires ≥2.2µF ceramic capacitor to GND for stability and transient response.
Pin 2 (GND)	Power ground	Primary return path for load current; must be connected to low-impedance ground plane adjacent to thermal pad.
Pin 3 (ADJ/NC)	Adjust pin / no connect	No connection in fixed-output variants; left floating or tied to GND per design - not used for voltage setting.
Pin 4 (GND)	Second ground terminal	Provides additional low-inductance ground path; must be soldered to thermal pad and ground plane.
Pin 5 (EN)	Enable control input	Active-high logic input; pulls regulator into shutdown mode when <0.3V, enabling system-level power sequencing.
Pin 6, 7 (NC)	No connection	Internally unconnected; must remain unconnected and unbonded on PCB to avoid parasitic coupling.
Pin 8 (IN)	Input supply	Accepts 2.2V–6.0V input; requires ≥1µF ceramic bypass capacitor placed within 2mm of pin for noise rejection.

Key Features

Feature	Design Value
Ultra-low dropout	500mV at 1A load enables use with 2.0V input sources - critical for single-cell Li-ion or USB-powered systems.
Low quiescent current	70µA typical allows >1-year battery life in always-on IoT sensors powered by coin cells or small LiPo packs.
Ceramic capacitor stability	Stable with ≥2.2µF X5R/X7R ceramic output caps (10–300mΩ ESR) - eliminates need for bulk tantalum or electrolytic capacitors.
Integrated protection	Current limit (1.1–1.5A), short-circuit clamp (~200mA), and thermal shutdown (150°C/130°C hysteresis) prevent field failures under fault conditions.
Fast transient response	200µs start-up time and high PSRR (>60dB @1kHz) maintain clean 1.5V rail during sudden load steps in FPGA I/O switching.

Applications

Application 1

Application 2

Use Scenario: Powering I/O banks of Xilinx Artix-7 FPGAs in portable test equipment.

IC Role / Device Role / Timing Role: Primary 1.5V I/O supply regulator with enable-controlled power sequencing during FPGA configuration.

Use Value: 500mV dropout allows direct regulation from 2.0V intermediate rail; 70µA IQ extends battery runtime between calibrations.

Use Scenario: Supplying analog front-end (AFE) circuitry in handheld medical ultrasound probes.

IC Role / Device Role / Timing Role: Low-noise 1.5V bias rail for ADC drivers and op-amps requiring minimal PSRR-induced ripple.

Use Value: 65dB PSRR at 1kHz suppresses noise from shared 3.3V DC/DC converter; ceramic-stable operation avoids aging-related drift.

Application 3

Application 4

Use Scenario: Core voltage for ARM Cortex-M4 microcontrollers in industrial wireless sensor nodes.

IC Role / Device Role / Timing Role: Always-on 1.5V supply enabling RTC and interrupt wake-up while main MCU sleeps.

Use Value: 70µA IQ reduces average sleep current below 100µA; EN pin allows host MCU to gate power during extended idle periods.

Use Scenario: Audio codec bias supply in Bluetooth headphones with dual Li-ion cells.

IC Role / Device Role / Timing Role: Fixed 1.5V rail for DAC/ADC reference and headphone amplifier stages.

Use Value: Fast 200µs start-up synchronizes with Bluetooth link establishment; low dropout preserves headroom during cell discharge.

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
MCP1703T-1502E/MB	150mA max output, 600mV dropout at 150mA, 2.5µA IQ - lower current, much lower quiescent current.	Not suitable for 1A FPGA I/O; better for ultra-low-power sensor nodes where <100µA total system sleep current is mandatory.	Select only if load current ≤150mA and sub-µA IQ is prioritized over output capability.
Torex XC6210B152MR-G	1A output, 250mV dropout at 300mA, 1.0µA IQ - lower dropout at light loads but higher thermal resistance (θ_JA = 120°C/W in SOT-25).	Limited to ≤300mA continuous in compact layouts due to thermal constraints; unsuitable for sustained 1A loads without large copper area.	Prefer for space-constrained designs with <300mA peak load and strict 1µA IQ requirement; avoid for full 1A applications.

Compared with MCP1703T-1502E/MB and XC6210B152MR-G, AP7361-15FGE-7 uniquely balances 1A delivery, 500mV dropout at full load, 70µA IQ, and 70°C/W thermal performance in a 3×3mm DFN - making it optimal for compact, battery-powered systems demanding both high current and moderate efficiency.

Availability

AP7361-15FGE-7 is available at Aetrix Electronics and suitable for FPGA I/O power, portable medical device analog supplies, and ARM microcontroller core voltage regulation requiring stable component supply, consistent parametric performance, and long-term production continuity.

Supply support for AP7361-15FGE-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, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Malaysia, and Taiwan.

The AP7361 belongs to Diodes' high-performance LDO regulator product line, engineered specifically for portable and battery-powered applications requiring ultra-low dropout, low quiescent current, and robust fault protection in miniature packages.

FAQ

What is the minimum input voltage required for AP7361-15FGE-7 to regulate 1.5V output at 1A?

The minimum input voltage is 2.0V, calculated as V_OUT + V_DROPOUT = 1.5V + 0.5V. The datasheet specifies 500mV dropout at 1A load, and absolute minimum VIN is 2.2V - so 2.0V represents the theoretical regulation boundary, but 2.2V is the guaranteed operational floor per Recommended Operating Conditions.

Can AP7361-15FGE-7 operate without an output capacitor?

No. An output capacitor ≥2.2µF ceramic is mandatory for stability and transient response. The device is not internally compensated for no-capacitor operation. Omitting the output capacitor causes oscillation and unregulated output, potentially damaging downstream circuitry.

Is the EN pin compatible with 1.8V logic levels?

Yes. With V_IH ≥1.0V (min) and V_IL ≤0.3V (max), the EN pin accepts standard 1.8V CMOS logic high (≥1.0V) and reliably interprets 0V as disable. No level-shifting is needed when driven directly from 1.8V GPIOs.

How does thermal shutdown behave during sustained overload?

When junction temperature reaches ~150°C, the output disables; it re-enables only after cooling to ~130°C (20°C hysteresis). Under continuous overload, this causes on/off cycling - visible as output voltage pulsing at ~1–10Hz depending on PCB thermal mass and airflow - protecting the IC from permanent damage.

AP7361-15FGE-7 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: 8-UDFN Exposed Pad

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):: 0.7V @ 1A

Current - Output:: 1A

Current - Quiescent (Iq):: 90 µA

Current - Supply (Max):: -

PSRR:: 65dB ~ 45dB (1kHz ~ 10kHz)

Control Features:: Enable

Protection Features:: Over Current, Over Temperature, Short Circuit

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: U-DFN3030-8 (Type E)

AP7361-15FGE-7 FAQ

1.How can I place an order for AP7361-15FGE-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for AP7361-15FGE-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 AP7361-15FGE-7 reliable?

The price and inventory of AP7361-15FGE-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7361-15FGE-7 is usually 5 days.

3.What payment methods are accepted for AP7361-15FGE-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7361-15FGE-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AP7361-15FGE-7?

AP7361-15FGE-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AP7361-15FGE-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 AP7361-15FGE-7?

For technical support, including AP7361-15FGE-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7361-15FGE-7 requirements.

6.How does Aetrix verify that AP7361-15FGE-7 is sourced from the original manufacturer or authorized distributors?

All AP7361-15FGE-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 AP7361-15FGE-7 meets industry standards.

7.What is the process for return or replacement of AP7361-15FGE-7?

All AP7361-15FGE-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7361-15FGE-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 AP7361-15FGE-7 part is unused and in its original packaging.

Return procedure for AP7361-15FGE-7:

1.Submit a request within 90 days.

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

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