My Inquiry
My Account
Diodes Incorporated AP7361C-25DR-13
- Part No.:
- AP7361C-25DR-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
AP7361C-25DR-13.pdf
- Description:
- IC REG LINEAR 2.5V 1A TO252
- Quantity:
- Payment:
- Shipping:
Inventory:3,860
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AP7361C-25DR-13 from Diodes Incorporated is a 1A fixed-output (2.5V) ultra-low dropout linear regulator with enable, designed for power rail regulation in space-constrained portable and battery-powered systems. It delivers ±1% output accuracy, 360mV dropout at 1A (for 3.3V version; 2.5V variant exhibits ≤440mV at 1A), 60µA typical quiescent current, and integrates thermal shutdown, fold-back short-circuit protection (400mA), and current limiting (1.5A). It powers core logic rails in LCD-TV mainboards.
For engineers reviewing the AP7361C-25DR-13 datasheet, AP7361C-25DR-13 pinout, AP7361C-25DR-13 application, or AP7361C-25DR-13 equivalent, key selection criteria include dropout voltage at 2.5V output, EN pin logic thresholds (VIH = 1.0V min), stability with ≥2.2µF MLCC output capacitors, and thermal resistance of TO252 (DPAK)R package (θJA = 95°C/W).
Technical Context
The AP7361C-25DR-13 implements a PMOS pass transistor architecture enabling ultra-low dropout operation and high PSRR (75dB @ 1kHz). Its internal 0.8V bandgap reference and error amplifier regulate output via feedback to the ADJ/NC pin - unused in fixed 2.5V configuration, where internal resistor divider sets VOUT.
Enable control is implemented as active-high logic on the EN pin, with VIH ≥ 1.0V and VIL ≤ 0.3V. Protection circuitry includes fold-back current limiting (triggers at ~400mA during short-circuit) and thermal shutdown activation at TJ ≈ 150°C with 20°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±1% - ensures stable core logic supply for SoC I/O domains requiring tight tolerance. |
| Max Output Current | 1.0A continuous - supports moderate-power digital subsystems such as HDMI transmitter ICs or audio DACs. |
| Dropout Voltage | ≤440mV at 1A (2.5V output) - enables regulation from 2.95V input, critical for single-cell Li-ion or 3.3V rail derating. |
| Quiescent Current | 60µA typical - minimizes standby power loss in always-on circuits like remote control receivers. |
| PSRR | 75dB @ 1kHz - suppresses switching noise from upstream DC-DC converters feeding the LDO input. |
| Thermal Shutdown | 150°C activation with 20°C hysteresis - prevents permanent damage during sustained overload or poor PCB heatsinking. |
| Input Voltage Range | 2.2V to 6.0V - compatible with wide-input buck regulators or multi-cell battery sources. |
Pinout & Package
AP7361C-25DR-13 uses the TO252 (DPAK)R package: 3-pin surface-mount variant with exposed thermal pad, pin 1 = GND, pin 2 = OUT, pin 3 = IN. Thermal pad must be soldered to PCB copper pour for θJA = 95°C/W performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (GND) | Power ground reference | Low-impedance return path for load current and internal bias; must connect directly to thermal pad and system ground plane. |
| Pin 2 (OUT) | Regulated output | Delivers 2.5V to load; requires ≥2.2µF ceramic capacitor placed adjacent to pin for stability and transient response. |
| Pin 3 (IN) | Unregulated input | Accepts 2.2–6.0V input; requires ≥1µF ceramic bypass capacitor close to pin to suppress supply noise and prevent oscillation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 440mV max at 1A (2.5V output) - extends usable battery life by enabling regulation deeper into discharge curve. |
| High PSRR | 75dB @ 1kHz - maintains clean 2.5V rail despite noisy switcher input, reducing need for additional filtering. |
| Fold-back short-circuit protection | Limits output to ~400mA during fault - prevents thermal runaway while allowing safe recovery when short is removed. |
| Stable with low-ESR capacitors | Works with ≥2.2µF MLCC, solid polymer, or tantalum - eliminates need for specialized high-ESR output caps. |
| Enable control | Active-high EN with 1.0V VIH threshold - compatible with 1.8V/3.3V GPIO without level-shifting. |
Applications
| Smart TV Mainboard Power | HDMI Transmitter Supply |
|---|---|
Use Scenario: Providing clean 2.5V rail to video processing SoC I/O banks and DDR interface buffers on LCD-TV mainboards. IC Role / Device Role / Timing Role: Primary post-regulator delivering low-noise, tightly regulated voltage to sensitive digital interfaces. Use Value: ±1% accuracy and 75dB PSRR ensure signal integrity for high-speed parallel buses, preventing timing violations under dynamic load. |
Use Scenario: Powering HDMI transmitter ICs (e.g., TFP410, Si2177) requiring stable 2.5V for TMDS channel drivers and PHY logic. IC Role / Device Role / Timing Role: Low-noise local regulator decoupling HDMI PHY from noisy system 3.3V rail. Use Value: 360–440mV dropout allows operation from marginally rated 3.3V supplies; fast start-up (<200µs) enables hot-plug compliance. |
| Set-Top Box Audio DAC | Home Appliance MCU Core Rail |
Use Scenario: Supplying 2.5V to stereo audio DACs (e.g., PCM5102A) in premium set-top boxes where analog output SNR is critical. IC Role / Device Role / Timing Role: Precision analog-domain LDO minimizing power supply-induced distortion in audio signal chain. Use Value: 60µA quiescent current reduces idle power; low output noise preserves DAC's 110dB SNR specification. |
Use Scenario: Delivering 2.5V to 32-bit ARM Cortex-M4 MCU cores in smart washing machines and HVAC controllers. IC Role / Device Role / Timing Role: Main logic rail regulator supporting real-time motor control firmware execution and sensor interface. Use Value: Thermal shutdown (150°C) and current limit (1.5A) protect against fault conditions during motor stall or ESD events. |
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-2502E/MB | 250mA max output, SOT-23-5 package, 600mV dropout at 250mA | Lower current capacity limits use to microcontroller peripherals only, not SoC or HDMI transmitters | Select when board space is critical and load < 250mA; avoid for 1A applications. |
| Torex XC6210B252MR-G | 1A output, SOT-25 package, 250mV dropout at 1A (2.5V), but no EN pin | Lacks enable control - unsuitable for power sequencing or standby mode management | Choose only if enable functionality is unnecessary and lowest possible dropout is required. |
Compared with MCP1703T-2502E/MB and XC6210B252MR-G, AP7361C-25DR-13 uniquely combines 1A capability, 440mV dropout at full load, integrated enable, and TO252 (DPAK)R thermal performance - making it optimal for thermally demanding, sequenced power rails in consumer video equipment.
Availability
AP7361C-25DR-13 is available at Aetrix Electronics and suitable for LCD-TV mainboards, HDMI transmitter modules, set-top box audio subsystems, and home appliance MCU power rails requiring stable component supply across industrial temperature range (-40°C to +85°C).
Supply support for AP7361C-25DR-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 manufacturer specializing in discrete, analog, and mixed-signal solutions for power management, signal integrity, and connectivity applications.
The AP7361C belongs to Diodes' high-performance LDO family targeting portable, battery-powered, and consumer electronics where ultra-low dropout, low IQ, and robust protection are essential design requirements.
FAQ
What is the minimum input voltage required for AP7361C-25DR-13 to maintain regulation at 1A load?
The minimum input voltage is calculated as VOUT + VDROPOUT = 2.5V + 0.44V = 2.94V. At 1A load and 25°C, the device sustains regulation down to 2.94V input. Below this, output voltage drops nonlinearly per the 2% dropout definition in the datasheet.
Can AP7361C-25DR-13 operate without an external output capacitor?
No. A minimum 2.2µF ceramic capacitor is mandatory between OUT and GND for stability. Omitting it causes oscillation and potential device failure. The capacitor must be placed within 2mm of the OUT and GND pins using short, wide traces.
Is the EN pin internally pulled down in AP7361C-25DR-13?
No. The EN pin has no internal pull-down; its leakage current is ±0.1µA. If unused, it must be externally tied to IN (not left floating) to ensure reliable turn-on. A 3.0MΩ internal pull-down resistor is present only in certain variants, not the DR package.
Does AP7361C-25DR-13 require a minimum load current to maintain regulation?
No. The device remains stable and regulated with zero load current. This "no-load stability" is confirmed in the datasheet Application Information section and enables use in standby or sleep modes without dummy loads.
AP7361C-25DR-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):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.44V @ 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-25DR-13 FAQ
1.How can I place an order for AP7361C-25DR-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7361C-25DR-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-25DR-13 reliable?
The price and inventory of AP7361C-25DR-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-25DR-13 is usually 5 days.
3.What payment methods are accepted for AP7361C-25DR-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7361C-25DR-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7361C-25DR-13?
AP7361C-25DR-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7361C-25DR-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-25DR-13?
For technical support, including AP7361C-25DR-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7361C-25DR-13 requirements.
6.How does Aetrix verify that AP7361C-25DR-13 is sourced from the original manufacturer or authorized distributors?
All AP7361C-25DR-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-25DR-13 meets industry standards.
7.What is the process for return or replacement of AP7361C-25DR-13?
All AP7361C-25DR-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP7361C-25DR-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-25DR-13 part is unused and in its original packaging.
Return procedure for AP7361C-25DR-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP7361C-25DR-13 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
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
