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Diodes Incorporated AP7361C-28Y5-13
- Part No.:
- AP7361C-28Y5-13
- Manufacturer:
- Diodes Incorporated
- Package:
- SOT-89-5/6
- Datasheet:
-
AP7361C-28Y5-13.pdf
- Description:
- IC REG LINEAR 2.8V 1A SOT89-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,041
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Product details
Overview
AP7361C-28Y5-13 from Diodes Incorporated is a 1A fixed-output low-dropout linear regulator with 2.8V output, enable control, ±1% output voltage accuracy, 360mV dropout at 1A (3.3V version), and 60µA typical quiescent current-designed for power rail regulation in portable audio systems, LCD-TV mainboards, and battery-powered set-top boxes.
For engineers reviewing the AP7361C-28Y5-13 datasheet, AP7361C-28Y5-13 pinout, AP7361C-28Y5-13 application, or AP7361C-28Y5-13 equivalent, key selection factors include its SOT89-5 package thermal performance (θJA = 150°C/W), EN pin logic thresholds (VIL ≤ 0.3V, VIH ≥ 1.0V), fold-back short-circuit protection (400mA), and stability with ≥2.2µF MLCC output capacitors.
Technical Context
The AP7361C-28Y5-13 integrates a PMOS pass element, band-gap reference (0.8V), error amplifier, and thermal shutdown circuitry (trip at +150°C with 20°C hysteresis). Its fixed 2.8V output eliminates external resistor divider requirements while retaining full enable functionality.
It operates across 2.2V–6.0V input range, delivers regulated 2.8V ±1% over –40°C to +85°C ambient, and features 75dB PSRR at 1kHz-enabling clean power delivery in noise-sensitive analog signal chains and digital subsystems sharing noisy DC-DC sources.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8V ±1% - ensures precise rail compliance for 2.8V I/O interfaces and RF front-end biasing. |
| Max Output Current | 1.0A continuous - supports moderate-power SoC cores, display drivers, or multi-channel audio codecs. |
| Dropout Voltage | 340mV typical at 1A (2.8V output) - enables operation from 3.14V input, critical for single-cell Li-ion (3.0–3.6V) systems. |
| Quiescent Current | 60µA typical - minimizes standby power loss in always-on subsystems like remote control receivers or real-time clocks. |
| PSRR | 75dB @ 1kHz - suppresses switching noise from upstream DC-DC converters feeding mixed-signal circuits. |
| Enable Threshold | VIH ≥ 1.0V, VIL ≤ 0.3V - compatible with 1.8V/3.3V GPIO without level-shifting in microcontroller-based power sequencing. |
| Thermal Shutdown | 150°C trip, 130°C recovery - provides robust fault protection during transient overload or poor PCB heatsinking. |
Pinout & Package
SOT89-5 package: 5-pin thermally enhanced plastic package with exposed tab (pin 3 = GND, pin 5 = GND), footprint optimized for PCB heat dissipation via copper pour under tab.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN | Regulator input; requires ≥1µF ceramic bypass capacitor placed adjacent to pin to suppress supply noise and ensure stability. |
| 2 | GND | Analog ground reference; must be connected to low-impedance system ground plane to minimize output ripple and enable accurate feedback. |
| 3 | OUT | Regulated 2.8V output; requires ≥2.2µF ceramic capacitor at pin for stability and load transient response. |
| 4 | EN | Active-high enable; drives high (>1.0V) to activate regulator; tied to IN if always-on operation required. |
| 5 | GND | Second ground terminal; electrically tied to pin 2 internally-must be connected to same ground plane for optimal thermal and EMI performance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 340mV at 1A (2.8V output) enables >90% efficiency from 3.14V input-critical for battery runtime extension. |
| Fold-back short-circuit protection | Limits output to ~400mA during hard shorts, preventing thermal runaway and enabling safe auto-recovery after fault removal. |
| Stable with small MLCCs | Guaranteed stability with ≥2.2µF X5R/X7R ceramic output capacitors-reduces BOM cost and board area vs. electrolytic solutions. |
| Low-noise operation | 75dB PSRR at 1kHz and <100ppm/°C output drift minimize interference in audio DACs, ADC references, and RF synthesizers. |
| Green packaging | Halogen- and antimony-free, RoHS-compliant molding compound (Br/Cl <900ppm, Sb <1000ppm) meets global environmental compliance mandates. |
Applications
| Portable Audio Systems | LCD-TV Mainboard Power |
|---|---|
|
Use Scenario: Powering stereo DACs, headphone amplifiers, and digital audio processors in Bluetooth speakers and soundbars. IC Role / Device Role / Timing Role: Primary 2.8V LDO supplying analog and digital I/O rails for audio ICs requiring low noise and tight voltage tolerance. Use Value: 75dB PSRR prevents audible switching artifacts from shared 5V DC-DC supplies; 60µA IQ extends battery life during playback pause. |
Use Scenario: Generating stable 2.8V for TCON (timing controller) logic and LVDS transmitter bias in 32–65" LCD panels. IC Role / Device Role / Timing Role: Fixed-voltage post-regulator delivering clean, low-ripple power to timing-critical display interface circuitry. Use Value: ±1% output accuracy ensures consistent LVDS common-mode voltage; 340mV dropout allows use of cost-effective 3.3V intermediate bus. |
| Set-Top Box SoC Core Rail | Battery-Powered IoT Sensors |
|
Use Scenario: Providing 2.8V auxiliary power to Wi-Fi/BT combo modules and secure boot ROM in cable/satellite STBs. IC Role / Device Role / Timing Role: Enable-controlled secondary LDO enabling firmware-upgrade-safe power gating of wireless subsystems. Use Value: EN pin compatibility with 3.3V MCU GPIO allows precise power sequencing; thermal shutdown protects against enclosure overheating. |
Use Scenario: Regulating 2.8V for ultra-low-power microcontrollers (e.g., ARM Cortex-M0+) and environmental sensors in coin-cell-powered nodes. IC Role / Device Role / Timing Role: Always-on LDO maintaining RTC and sensor bias during deep sleep, activated only when wake-up event occurs. Use Value: 60µA IQ minimizes quiescent drain on CR2032 cells; no minimum load requirement simplifies design for intermittent sensing duty cycles. |
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-2802E/MB | 2.8V fixed, 250mA max, 6µA IQ, SOT23-5 package - lower current, much lower quiescent current, higher dropout (600mV @ 250mA). | Only suitable for sub-250mA loads; inadequate for audio codec or TCON power; better for ultra-low-power sensor nodes. | Select only if load current ≤250mA and IQ <10µA is mandatory; not drop-in due to current and thermal limits. |
| TPS7A2028PDQNR | 2.8V fixed, 300mA max, 6.5µA IQ, X2SON-4 package - lower current, ultra-low IQ, 170mV dropout @ 300mA, no EN pin. | Lacks enable control; insufficient for 1A loads; best for always-on microcontroller peripherals with strict IQ budgets. | Choose only for always-on, low-current (<300mA), enable-not-required designs where 6.5µA IQ outweighs current capability loss. |
Compared with MCP1703T-2802E/MB and TPS7A2028PDQNR, the AP7361C-28Y5-13 uniquely balances 1A output, 60µA IQ, and EN control in SOT89-5-making it the only viable option for 2.8V power domains demanding both medium current and moderate low-power operation.
Availability
AP7361C-28Y5-13 is available at Aetrix Electronics and suitable for LCD-TV mainboards, portable audio systems, set-top box SoC power domains, and battery-powered IoT sensor nodes requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for AP7361C-28Y5-13 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 devices, with operations certified to IATF 16949:2016 and ISO 9001 standards.
The AP7361C belongs to Diodes' high-performance LDO family targeting consumer, computing, and industrial power management-designed specifically for applications needing ultra-low dropout, low IQ, and robust fault protection in compact packages.
FAQ
What is the maximum input voltage for AP7361C-28Y5-13?
The absolute maximum input voltage is 6.5V, but the recommended operating range is 2.2V to 6.0V. Exceeding 6.5V risks permanent damage per Absolute Maximum Ratings. For reliable 2.8V output, VIN must remain ≥3.14V (2.8V + 340mV dropout) under 1A load to avoid regulation loss.
Can AP7361C-28Y5-13 operate without an output capacitor?
No. A minimum 2.2µF ceramic capacitor is required between OUT and GND for stability, per datasheet Section 10. Omitting it causes oscillation and potential device failure. Larger values (e.g., 4.7µF–10µF) improve load transient response but are not mandatory for basic regulation.
Is the EN pin internally pulled down on AP7361C-28Y5-13?
No. The EN pin has no internal pull-down; its leakage current is ±0.1µA (IEN). To ensure startup, EN must be actively driven high (≥1.0V) or tied directly to IN. Leaving EN floating may result in undefined output state due to noise coupling.
Does AP7361C-28Y5-13 require a minimum load current?
No. The device remains stable and regulated with zero load current, as confirmed in Section 11 ("No Load Stability"). This eliminates need for dummy loads-critical for battery-powered applications where every µA counts during sleep modes.
AP7361C-28Y5-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-89-5/6
- 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):
- 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.36V @ 1A (Typ)
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 80 µA
- Current - Supply (Max):
- -
- PSRR:
- 75dB ~ 55dB (1kHz ~ 10kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89-5
AP7361C-28Y5-13 FAQ
1.How can I place an order for AP7361C-28Y5-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7361C-28Y5-13 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-28Y5-13 reliable?
The price and inventory of AP7361C-28Y5-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7361C-28Y5-13 is usually 5 days.
3.What payment methods are accepted for AP7361C-28Y5-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7361C-28Y5-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7361C-28Y5-13?
AP7361C-28Y5-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7361C-28Y5-13 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-28Y5-13?
For technical support, including AP7361C-28Y5-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7361C-28Y5-13 requirements.
6.How does Aetrix verify that AP7361C-28Y5-13 is sourced from the original manufacturer or authorized distributors?
All AP7361C-28Y5-13 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-28Y5-13 meets industry standards.
7.What is the process for return or replacement of AP7361C-28Y5-13?
All AP7361C-28Y5-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP7361C-28Y5-13, 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-28Y5-13 part is unused and in its original packaging.
Return procedure for AP7361C-28Y5-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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