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Diodes Incorporated AP3003S-5.0TRE1
- Part No.:
- AP3003S-5.0TRE1
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- Datasheet:
-
AP3003S-5.0TRE1.pdf
- Description:
- IC REG BUCK 5V 3A TO263-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,216
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Product details
Overview
AP3003S-5.0TRE1 from BCD Semiconductor is a fixed-frequency PWM buck DC-DC converter delivering 5.0V ±4% at up to 3A load current, with 150kHz internal oscillator, 4–32V input range, and TO-263-5 package. It integrates current limit protection, thermal shutdown, and TTL-compatible ON/OFF control for compact, high-efficiency power conversion in LCD monitors and DVD recorders.
For engineers reviewing the AP3003S-5.0TRE1 datasheet, AP3003S-5.0TRE1 pinout, AP3003S-5.0TRE1 application, or AP3003S-5.0TRE1 equivalent, key selection criteria include output voltage tolerance, thermal resistance (RθJA = 40°C/W for TO-263-5), standby quiescent current (80µA typ), and compatibility with standard 22µH inductors and Schottky diodes like 1N5822.
Technical Context
The AP3003S-5.0TRE1 implements a synchronous-switching architecture with internal 150kHz oscillator and error amplifier feedback loop referenced to 1.23V. Its fixed 5.0V output version eliminates external resistor dividers, simplifying design while maintaining ±4% regulation across line (7–32V) and load (0.2–3A) variations.
Functional block includes integrated driver stage, latch-controlled PWM comparator, 2.5V bias regulator, and thermal shutdown circuitry triggered at 150°C junction temperature. The ON/OFF pin enables TTL-level control with 0.6V low threshold and 2.0V high threshold, supporting low-power standby mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0V ±4% - Guaranteed regulation over full operating temperature and load range without external feedback components. |
| Max Output Current | 3A continuous - Supports high-current rails for display logic and audio subsystems without external current boosting. |
| Switching Frequency | 150kHz fixed - Enables use of low-cost, low-ESR electrolytic capacitors and standard 22µH power inductors. |
| Input Voltage Range | 4–32V - Compatible with 12V/24V industrial and consumer DC bus systems including PDP and LCD TV front-end supplies. |
| Efficiency | 80% @ 12VIN, 3A - Minimizes thermal dissipation in enclosed environments; peak efficiency reaches 82.5% at mid-load. |
| Standby Quiescent Current | 80µA typical - Enables ultra-low power state during system sleep without auxiliary LDOs or external enable sequencing. |
| Thermal Resistance | RθJA = 40°C/W (TO-263-5) - Allows 3A operation up to 85°C ambient without heatsink under natural convection. |
Pinout & Package
AP3003S-5.0TRE1 uses the TO-263-5 surface-mount package with exposed metal tab connected internally to GND for enhanced thermal performance and EMI reduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VIN | Unregulated input supply | Accepts 4–32V DC; requires 470µF bulk capacitance for stability and ripple suppression. |
| 2 OUTPUT | Switch node output | Drives external inductor; connects to cathode of freewheeling Schottky diode (e.g., 1N5822). |
| 3 GND | Power and signal ground | Common return path; metal tab is electrically tied to this pin for thermal and EMI management. |
| 4 FEEDBACK | Output voltage sensing | Internally connected to 5.0V reference; left unconnected in fixed-output versions (no external divider needed). |
| 5 ON/OFF | TTL-compatible enable control | Pull low ≤0.6V to disable regulator; pull high ≥2.0V to enable; draws <5µA when active. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated current limit & thermal shutdown | Protects against short-circuit and overload conditions without external sensing resistors or thermal sensors. |
| Fixed 5.0V output with ±4% tolerance | Eliminates need for external feedback resistors, reducing BOM count and layout sensitivity. |
| Only 4 external components required | Inductor, output capacitor, input capacitor, and freewheeling diode-enables minimal footprint designs. |
| 150kHz fixed-frequency PWM | Enables predictable EMI filtering and avoids sub-harmonic instability common in variable-frequency converters. |
| TTL-compatible ON/OFF control | Direct interface with microcontroller GPIOs or system power sequencers without level-shifting circuitry. |
Applications
| LCD Monitor Power Supply | DVD Recorder Main Rail |
|---|---|
Use Scenario: Provides stable 5.0V rail for LCD panel timing controller, scaler IC, and USB peripheral interfaces. IC Role / Device Role / Timing Role: Primary step-down regulator converting 12V DC bus to clean 5V logic supply with fast transient response. Use Value: Delivers 3A continuously with <±0.1% load regulation, minimizing voltage droop during video frame updates. | Use Scenario: Powers MPEG decoder SoC, optical drive motor driver, and HDMI transmitter in consumer DVD recorders. IC Role / Device Role / Timing Role: High-current DC-DC converter enabling single-rail 12V-to-5V conversion with low thermal footprint. Use Value: Achieves 80% efficiency at full load, reducing heat buildup in sealed plastic enclosures. |
| PDP Display Logic Supply | On-Card DC-DC Converter |
Use Scenario: Supplies 5.0V to plasma display driver ICs and address/data buffer circuits in large-screen PDP TVs. IC Role / Device Role / Timing Role: Robust buck regulator handling wide input transients (up to 32V) from switched-mode front-end supplies. Use Value: Withstands 40V absolute max input and features built-in thermal shutdown, ensuring reliability during surge events. | Use Scenario: Integrated on mainboard to replace linear regulators for FPGA I/O banks or microcontroller peripherals. IC Role / Device Role / Timing Role: Compact, self-contained switching solution replacing inefficient 7805-style linear regulators. Use Value: Reduces board area by >60% vs. linear solution and cuts power loss by >75% at 3A load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP1584EN-LF-Z | Adjustable output (0.8–20V), 3A, 1.5MHz switching frequency, requires external feedback resistors. | Suitable for multi-rail systems needing programmable outputs; higher frequency allows smaller magnetics but increases EMI filtering complexity. | Select when adjustable output or higher switching frequency is required; not drop-in for fixed 5V use. |
| LM2596S-5.0 | Fixed 5V output, 3A, 150kHz, TO-263-5 package, but no TTL ON/OFF pin and higher quiescent current (5mA vs. 80µA). | Better suited for always-on applications; lacks low-power standby capability critical for energy-efficient consumer devices. | Choose only if ON/OFF control is unnecessary and thermal margin permits higher IQ-related losses. |
Compared with MP1584EN-LF-Z and LM2596S-5.0, AP3003S-5.0TRE1 uniquely combines fixed 5V output, TTL enable, 80µA standby current, and TO-263-5 thermal performance-making it optimal for space-constrained, low-power consumer displays requiring simple, reliable 5V conversion.
Availability
AP3003S-5.0TRE1 is available at Aetrix Electronics and suitable for LCD monitor power supplies, DVD recorder main rails, and PDP display logic supplies requiring stable component supply, RoHS-compliant packaging, and tape-and-reel delivery for automated assembly.
Supply support for AP3003S-5.0TRE1 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
BCD Semiconductor Manufacturing Limited is a Shanghai-based analog and power IC designer specializing in high-voltage, high-current, and mixed-signal process technologies for consumer, industrial, and automotive applications.
The AP3003 series belongs to BCD's high-efficiency DC-DC converter product line, designed specifically for cost-sensitive, high-volume consumer electronics requiring simple, robust, and thermally efficient step-down power solutions.
FAQ
What is the recommended input capacitor value for AP3003S-5.0TRE1?
A minimum 470µF low-ESR aluminum or polymer electrolytic capacitor is specified at the VIN pin to suppress input ripple and sustain 3A load steps. Ceramic bypass (100nF) in parallel improves high-frequency decoupling. Layout must minimize trace inductance between VIN and GND pins to prevent oscillation.
Does AP3003S-5.0TRE1 require an external feedback resistor network?
No. The "5.0" suffix denotes the fixed 5.0V output version, where the internal feedback divider is factory-trimmed. Pin 4 (FEEDBACK) is internally connected to the 5.0V reference and must be left unconnected-no external resistors or capacitors are needed for regulation.
Can AP3003S-5.0TRE1 operate without a heatsink at 3A load?
Yes, in free-air convection with PCB copper pour (≥4 cm² thermal pad connected to GND plane), AP3003S-5.0TRE1 maintains safe junction temperature (<125°C) up to 85°C ambient due to its TO-263-5 package RθJA of 40°C/W and thermal shutdown at 150°C.
What diode is recommended for the freewheeling path in AP3003S-5.0TRE1 applications?
The datasheet specifies 1N5822 (3A, 40V Schottky) as the reference diode. Equivalent alternatives include SS34 or SB340-selected for low forward voltage (<0.55V), fast recovery (<100ns), and thermal compatibility with the 3A peak switch current and 150kHz switching frequency.
AP3003S-5.0TRE1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 7V
- Voltage - Input (Max):
- 32V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 3A
- Frequency - Switching:
- 150kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263-5
AP3003S-5.0TRE1 FAQ
1.How can I place an order for AP3003S-5.0TRE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP3003S-5.0TRE1 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 AP3003S-5.0TRE1 reliable?
The price and inventory of AP3003S-5.0TRE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP3003S-5.0TRE1 is usually 5 days.
3.What payment methods are accepted for AP3003S-5.0TRE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP3003S-5.0TRE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP3003S-5.0TRE1?
AP3003S-5.0TRE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP3003S-5.0TRE1 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 AP3003S-5.0TRE1?
For technical support, including AP3003S-5.0TRE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP3003S-5.0TRE1 requirements.
6.How does Aetrix verify that AP3003S-5.0TRE1 is sourced from the original manufacturer or authorized distributors?
All AP3003S-5.0TRE1 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 AP3003S-5.0TRE1 meets industry standards.
7.What is the process for return or replacement of AP3003S-5.0TRE1?
All AP3003S-5.0TRE1 units undergo pre-shipment inspection (PSI). If there is an issue with AP3003S-5.0TRE1, 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 AP3003S-5.0TRE1 part is unused and in its original packaging.
Return procedure for AP3003S-5.0TRE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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