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onsemi CS5204-5GT3
- Part No.:
- CS5204-5GT3
- Manufacturer:
- onsemi
- Package:
- TO-220-3
- Datasheet:
-
CS5204-5GT3.pdf
- Description:
- IC REG LINEAR 5V 4A TO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,996
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Product details
Overview
CS5204-5GT3 from onsemi is a 4.0 A, 5.0 V fixed-output linear regulator in TO-220-3 package with ±2.0% output voltage accuracy, 1.1 V dropout at full load, and integrated thermal shutdown, overcurrent, and safe operating area (SOA) protection. It serves as a post-regulator for microprocessor core supplies requiring stable low-noise DC power under high transient loads.
For engineers reviewing the CS5204-5GT3 datasheet, pinout, applications, or equivalent options, key selection criteria include guaranteed 4.0 A continuous output, fixed 5.0 V output with ±2% tolerance, 1.1 V dropout at 4.0 A, thermal shutdown activation at 150°C, and compatibility with standard TO-220 heatsinking solutions.
Technical Context
The CS5204-5GT3 uses a composite PNP-NPN output stage optimized for low dropout and fast transient response. Its internal bandgap reference and error amplifier maintain regulation across input voltages up to 17 V and junction temperatures from −40°C to +150°C.
SOA protection dynamically reduces maximum output current as VIN−VOUT increases, preventing device failure under high-differential-voltage conditions. The regulator requires a minimum 22 µF tantalum output capacitor for stability and specifies 75 dB ripple rejection at 120 Hz with 4.0 A load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±2%, meeting TTL/CMOS logic supply requirements with minimal external components. |
| Maximum Output Current | 4.0 A continuous, supporting high-power microprocessor cores and FPGA I/O banks without derating at 70°C ambient. |
| Dropout Voltage | 1.1 V typical at 4.0 A, enabling operation with only 6.1 V input for reliable 5.0 V output under full load. |
| Quiescent Current | 10 mA max at full load, minimizing no-load power loss in always-on subsystems. |
| Ripple Rejection | 75 dB at 120 Hz, suppressing line-frequency noise from upstream switching converters feeding the regulator. |
| Thermal Shutdown Threshold | 150°C junction temperature, with 25°C hysteresis, ensuring robust recovery after overload events. |
| Operating Temperature Range | −40°C to +70°C ambient, validated for industrial control and embedded computing environments. |
Pinout & Package
CS5204-5GT3 is housed in a TO-220-3 package (Case 221A) with the metal tab electrically connected to VOUT for direct heatsink mounting and thermal conduction. Pin 1 is GND, Pin 2 is VOUT (tab), and Pin 3 is VIN - a three-terminal configuration requiring no adjust resistor network.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal error amplifier and protection circuitry; must be low-impedance connection to system ground plane. |
| 2 | VOUT | Regulated 5.0 V output; metal tab is electrically tied to this pin and serves as primary thermal path to heatsink. |
| 3 | VIN | Input supply (up to 17 V); requires ≥10 µF input capacitance near pin to suppress high-frequency noise and prevent instability. |
Key Features
| Feature | Design Value |
|---|---|
| SOA Protection | Automatically scales current limit inversely with VIN−VOUT differential, preventing thermal runaway during high-input-voltage, low-output-voltage operation. |
| Fast Transient Response | Stabilizes within microseconds of step-load changes up to 4.0 A, critical for CPU burst-mode operation without undershoot. |
| Low Dropout Architecture | 1.1 V dropout at 4.0 A enables use with 6–7 V intermediate bus rails common in telecom and industrial power systems. |
| Integrated Fault Protection | Single-chip integration of thermal shutdown, overcurrent, and SOA protection eliminates need for external monitoring circuits. |
| High Ripple Rejection | 75 dB attenuation at 120 Hz allows direct coupling to unregulated transformer-rectifier supplies without additional filtering stages. |
Applications
| Industrial PLC Power Supply | Embedded Microprocessor Core Supply |
|---|---|
Use Scenario: Providing clean 5.0 V power to ARM Cortex-A series processors in programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Primary post-regulator delivering stable 5.0 V to processor VDD_IO and peripheral interfaces. Use Value: 4.0 A capability supports multi-core SoCs; SOA protection ensures reliability during 24/7 operation with variable input rail fluctuations. |
Use Scenario: Powering FPGA configuration banks and transceivers in industrial vision systems requiring low-noise, high-current 5 V rails. IC Role / Device Role / Timing Role: Fixed-output LDO supplying regulated 5.0 V to high-speed I/O banks with tight voltage tolerance. Use Value: ±2% output accuracy meets FPGA vendor specifications; 75 dB ripple rejection prevents bit errors in LVDS links. |
| Telecom Line Card Post-Regulation | Test Equipment Power Module |
Use Scenario: Generating 5.0 V from a 12 V intermediate bus in modular telecom line cards with space-constrained PCB layouts. IC Role / Device Role / Timing Role: Compact, heatsink-mountable linear regulator replacing bulkier switcher-LDO combinations. Use Value: TO-220-3 package enables direct bolt-down heatsinking; 1.1 V dropout minimizes power loss and heat generation at 12 V input. |
Use Scenario: Delivering precise 5.0 V to analog front-end circuitry and DAC references in automated test equipment requiring ultra-low noise. IC Role / Device Role / Timing Role: Low-noise linear regulator providing clean supply for precision measurement subsystems. Use Value: 0.003% RMS output noise ensures sub-LSB accuracy in 16-bit DAC applications; thermal shutdown prevents calibration drift during extended tests. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM350K STEEL | 3.0 A output, 1.5 V dropout at 3 A, no SOA protection, TO-220 package. | Lacks current scaling under high VIN−VOUT; suitable only for lower-current, fixed-differential applications. | Select when cost is prioritized over 4.0 A capability and SOA protection. |
| LT1085CT-5 | 3.0 A output, 1.3 V dropout at 3 A, no thermal hysteresis, TO-220 package. | Higher dropout and no thermal hysteresis reduce margin in thermally constrained enclosures. | Choose only if existing LT1085-based designs require drop-in replacement with minor performance trade-offs. |
Compared with LM350K STEEL and LT1085CT-5, the CS5204-5GT3 delivers 33% higher current, lower dropout, and integrated SOA protection-enabling more compact thermal design and improved reliability in high-differential-voltage industrial applications.
Availability
CS5204-5GT3 is available at Aetrix Electronics and suitable for industrial PLC power supplies, embedded microprocessor core supplies, and telecom line card post-regulation requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for CS5204-5GT3 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
onsemi (formerly ON Semiconductor) is a global semiconductor manufacturer specializing in energy-efficient power management, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The CS5204-5GT3 belongs to the CS5204-x family of high-current linear regulators designed specifically for post-regulation in microprocessor and FPGA power systems where low noise, fast transient response, and robust fault protection are mandatory.
FAQ
What is the maximum input voltage rating for the CS5204-5GT3?
The CS5204-5GT3 has an absolute maximum supply voltage rating of 17 V. Operation above this voltage risks permanent damage to the internal PNP-NPN pass transistor and protection circuitry. For reliable long-term operation, input voltage should remain ≤15 V per datasheet test conditions, especially at elevated ambient temperatures.
Does the CS5204-5GT3 require an external capacitor on the adjust pin?
No - the CS5204-5GT3 is a fixed 5.0 V output variant and does not have an adjust pin. Unlike the adjustable CS5204-1, it uses internal resistor feedback and omits the ADJ terminal entirely. Its pinout is GND–VOUT–VIN, with no external trim components required.
Can the CS5204-5GT3 be used without a heatsink?
No - the CS5204-5GT3 must be mounted to a heatsink. With a typical RJC of 1.6°C/W and power dissipation exceeding 4 W at full load (e.g., 12 V input → 5 V @ 4 A = 28 W input, 20 W dissipated), junction temperature will exceed 150°C without thermal management. TO-220 mounting hardware and thermal compound are mandatory.
What type of output capacitor is recommended for the CS5204-5GT3?
A minimum 22 µF tantalum capacitor is specified for stability. Aluminum electrolytic capacitors are acceptable but exhibit larger ESR and capacitance variation at low temperatures. Ceramic capacitors alone are not recommended due to near-zero ESR causing potential loop instability; if used, they must be paralleled with a ≥22 µF tantalum or polymer capacitor.
How does SOA protection function in the CS5204-5GT3 during overload conditions?
SOA protection in the CS5204-5GT3 dynamically reduces the maximum allowable output current as the VIN−VOUT differential increases. At 1.1 V differential, full 4.0 A is permitted; at 6 V differential, current limit drops to ~1.0 A. This prevents simultaneous high voltage and high current stress that would exceed the safe operating area of the internal pass transistor.
CS5204-5GT3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 17V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.2V @ 4A
- Current - Output:
- 4A
- Current - Quiescent (Iq):
- 10 mA
- Current - Supply (Max):
- -
- PSRR:
- 75dB (120Hz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220-3
CS5204-5GT3 FAQ
1.How can I place an order for CS5204-5GT3 through Aetrix?
Please submit a Request for Quotation (RFQ) for CS5204-5GT3 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 CS5204-5GT3 reliable?
The price and inventory of CS5204-5GT3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CS5204-5GT3 is usually 5 days.
3.What payment methods are accepted for CS5204-5GT3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CS5204-5GT3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CS5204-5GT3?
CS5204-5GT3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CS5204-5GT3 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 CS5204-5GT3?
For technical support, including CS5204-5GT3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CS5204-5GT3 requirements.
6.How does Aetrix verify that CS5204-5GT3 is sourced from the original manufacturer or authorized distributors?
All CS5204-5GT3 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 CS5204-5GT3 meets industry standards.
7.What is the process for return or replacement of CS5204-5GT3?
All CS5204-5GT3 units undergo pre-shipment inspection (PSI). If there is an issue with CS5204-5GT3, 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 CS5204-5GT3 part is unused and in its original packaging.
Return procedure for CS5204-5GT3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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