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Diodes Incorporated AP1115BY30L-13
- Part No.:
- AP1115BY30L-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-243AA
- Datasheet:
-
AP1115BY30L-13.pdf
- Description:
- IC REG LINEAR 3V 600MA SOT89-3
- Quantity:
- Payment:
- Shipping:
Inventory:7,017
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Product details
Overview
AP1115BY30L-13 from Diodes Incorporated is a 0.6A low-dropout positive fixed-mode voltage regulator with 3.0V output, SOT89-3L package, <1.3V dropout at full load, and integrated thermal shutdown-designed for stable 3.3V logic supply and VGA card power rails.
For engineers reviewing the AP1115BY30L-13 datasheet, AP1115BY30L-13 pinout, AP1115BY30L-13 application, or AP1115BY30L-13 equivalent, key selection criteria include dropout voltage at 600mA, output accuracy over temperature, thermal resistance (θJA = 164°C/W), and compatibility with 10µF–100µF output capacitors having 0.15–20Ω ESR.
Technical Context
The AP1115BY30L-13 operates in fixed-output mode (3.0V) with internal reference voltage of 1.250V (typ), delivering regulated output across 4.5V–12V input range. Dropout is guaranteed ≤1.3V at IOUT = 0.6A, enabling operation from 18V max input while maintaining regulation down to VIN = VOUT + 1.3V.
It integrates current limiting and thermal shutdown protection, with fast transient response validated via 100µF input/output capacitance and 100mA preload. Ripple rejection is 60–70dB at 120Hz with tantalum output capacitor, and load regulation is ±30mV over 0–0.6A at VIN = 5V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000V (±2% at 10mA, 4.5V ≤ VIN ≤ 12V, TA = +25°C) |
| Max Dropout Voltage | 1.3V at 0.6A load - ensures regulation with only 4.3V input for 3.0V output |
| Output Current | 0.6A continuous - supports logic supplies and peripheral rails without external boost |
| Thermal Resistance θJA | 164°C/W (FR-4, 2oz Cu, min pad layout) - requires heatsinking above ~0.35W dissipation |
| Ripple Rejection | 60–70dB at 120Hz - suppresses switching noise from upstream DC/DC converters |
| Load Regulation | ±30mV (0–0.6A, VIN = 5V) - maintains tight voltage window under dynamic load steps |
| Quiescent Current | 5–10mA minimum load required - prevents regulation loss during light-load standby |
Pinout & Package
SOT89-3L package: surface-mount, lead-free, halogen-free "Green" molding compound; tab connected to VIN (Pin 2 per AP1115B configuration); thermal pad on underside enhances heat transfer to PCB copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1: Adj (GND) | Ground reference / adjustment node | Internally tied to GND in fixed-mode (AP1115B); must be grounded externally for stability |
| Pin 2: VIN | Regulator input | Accepts 4.5–18V DC; requires ≥100µF input capacitor with 0.15–20Ω ESR to prevent sag during transients |
| Pin 3: VOUT | Regulated output | Delivers 3.0V ±2%; requires ≥10µF output capacitor (0.15–20Ω ESR) for loop stability |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 3.0V output | Eliminates external resistor divider; reduces BOM count and layout area vs adjustable LDOs |
| 1.3V max dropout at 0.6A | Enables single-supply operation from legacy 5V rails or partially discharged batteries |
| Integrated thermal shutdown | Protects against sustained overload or poor PCB thermal design without external circuitry |
| 60–70dB ripple rejection | Reduces need for post-regulation LC filtering in noise-sensitive analog or clock domains |
| SOT89-3L "Green" package | Fully RoHS-compliant, halogen/antimony-free - meets IPC-1752A material declaration requirements |
Applications
| VGA Graphics Card Power | PCI Express Peripheral Supply |
|---|---|
|
Use Scenario: Providing clean 3.0V bias to analog front-end circuitry and memory interface buffers on discrete VGA cards. IC Role / Device Role / Timing Role: Primary low-noise post-regulator for GPU auxiliary rails, decoupling switching noise from upstream DC/DC. Use Value: 60–70dB ripple rejection maintains signal integrity in high-speed video timing paths; 1.3V dropout allows use with 5V system rail without efficiency penalty. |
Use Scenario: Delivering stable 3.0V to PCIe slot auxiliary power pins (e.g., +3.3V_AUX) in desktop motherboards and add-in cards. IC Role / Device Role / Timing Role: Fixed-output LDO supplying always-on logic for hot-plug detection and link training state machines. Use Value: Guaranteed 0.6A output supports multi-lane PCIe devices; thermal shutdown prevents latch-up during connector insertion transients. |
| Industrial I/O Module Logic Rail | Embedded Controller Boot Supply |
|
Use Scenario: Powering 3.3V-tolerant microcontroller GPIO banks and level-shifting interfaces in programmable logic controllers (PLCs). IC Role / Device Role / Timing Role: Local point-of-load regulator isolating digital I/O from noisy 24V field bus inputs. Use Value: Load regulation ±30mV ensures consistent logic thresholds across 0–0.6A load swings; SOT89-3L footprint fits dense industrial PCB layouts. |
Use Scenario: Generating 3.0V for boot ROM, reset controller, and real-time clock (RTC) circuitry in headless embedded systems. IC Role / Device Role / Timing Role: Always-on LDO maintaining critical subsystem voltage during deep-sleep modes. Use Value: 5–10mA minimum load requirement aligns with RTC quiescent draw; 164°C/W θJA enables passive cooling in sealed enclosures. |
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-3002E/MB | 300mA output, 600mV dropout at 250mA, SOT23-5 package | Lower current capacity; unsuitable for 0.6A VGA loads but fits space-constrained I/O modules | Select when board area is critical and load ≤300mA; verify thermal performance with 220°C/W θJA. |
| TPS7A2030PDBVR | 300mA, 170mV dropout at 300mA, 12µA IQ, WSON-5 package | Ultra-low IQ and dropout ideal for battery-powered devices; lacks thermal shutdown flag | Prefer for portable applications needing >100hr battery life; not recommended for industrial ambient >85°C. |
Compared with MCP1700T-3002E/MB and TPS7A2030PDBVR, AP1115BY30L-13 uniquely delivers 0.6A at ≤1.3V dropout in SOT89-3L, making it irreplaceable for thermally demanding, medium-current fixed-voltage applications where thermal shutdown and 60–70dB ripple rejection are mandatory.
Availability
AP1115BY30L-13 is available at Aetrix Electronics and suitable for VGA graphics card power, PCIe peripheral supply, and industrial I/O module logic rails requiring stable component supply despite product discontinuation status.
Supply support for AP1115BY30L-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 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 AP1115 series belongs to Diodes' fixed- and adjustable-output LDO portfolio, engineered specifically for low-voltage IC supply in high-speed bus termination, logic rails, and graphics subsystems where dropout, noise rejection, and thermal robustness are critical.
FAQ
Is AP1115BY30L-13 still in production?
No-AP1115BY30L-13 is officially obsolete and discontinued by Diodes Incorporated as of April 2016. Aetrix Electronics maintains limited legacy stock with full traceability and provides lifecycle coordination support for ongoing production programs requiring last-time buys or cross-qualified alternatives.
What is the correct pinout configuration for AP1115BY30L-13?
AP1115BY30L-13 uses the AP1115B pinout: Pin 1 = Adj (GND), Pin 2 = VIN, Pin 3 = VOUT. The metal tab is electrically connected to VIN, not GND-critical for thermal pad routing and isolation from ground planes.
Can AP1115BY30L-13 replace AP1115AY30L-13?
No-AP1115AY30L-13 uses AP1115A pinout (Pin 1 = VOUT, Pin 2 = Adj/GND, Pin 3 = VIN), with tab connected to Adj/GND. Swapping them causes VIN-to-tab shorting. Electrical specs match, but mechanical and thermal connections differ fundamentally.
What output capacitor ESR range ensures stability?
AP1115BY30L-13 requires an output capacitor with ESR between 0.15Ω and 20Ω (e.g., 10–100µF tantalum or polymer aluminum). Ceramic capacitors below 0.15Ω ESR risk oscillation unless a 1–2Ω damping resistor is added in series.
AP1115BY30L-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-243AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 18V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.3V @ 600mA
- Current - Output:
- 600mA
- Current - Quiescent (Iq):
- 10 mA
- Current - Supply (Max):
- -
- PSRR:
- 60dB (120Hz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- 0°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89-3
AP1115BY30L-13 FAQ
1.How can I place an order for AP1115BY30L-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP1115BY30L-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 AP1115BY30L-13 reliable?
The price and inventory of AP1115BY30L-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1115BY30L-13 is usually 5 days.
3.What payment methods are accepted for AP1115BY30L-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1115BY30L-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP1115BY30L-13?
AP1115BY30L-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP1115BY30L-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 AP1115BY30L-13?
For technical support, including AP1115BY30L-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1115BY30L-13 requirements.
6.How does Aetrix verify that AP1115BY30L-13 is sourced from the original manufacturer or authorized distributors?
All AP1115BY30L-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 AP1115BY30L-13 meets industry standards.
7.What is the process for return or replacement of AP1115BY30L-13?
All AP1115BY30L-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP1115BY30L-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 AP1115BY30L-13 part is unused and in its original packaging.
Return procedure for AP1115BY30L-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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