My Inquiry
My Account
onsemi CS5207-3GT3
- Part No.:
- CS5207-3GT3
- Manufacturer:
- onsemi
- Package:
- TO-220-3
- Datasheet:
-
CS5207-3GT3.pdf
- Description:
- IC REG LINEAR 3.3V 7A TO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,574
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CS5207-3GT3 from onsemi is a 7.0 A, 3.3 V fixed-output linear regulator in TO-220-3 package with ±2.0% output accuracy, 1.4 V dropout at full load, and integrated thermal shutdown, overcurrent, and safe operating area (SOA) protection. It serves as a post-regulator and microprocessor supply where low-voltage operation and fast transient response are critical.
For engineers reviewing the CS5207-3GT3 datasheet, pinout, applications, or equivalent options, key selection factors include guaranteed 7.0 A output current, 1.4 V dropout voltage at full load, ±2.0% output voltage tolerance, thermal shutdown threshold at 150°C, and TO-220-3 mechanical compatibility with standard heat sinks.
Technical Context
The CS5207-3GT3 employs a composite PNP-NPN output stage and requires a minimum 22 μF tantalum output capacitor for stability. Its loop design enables fast transient response essential for microprocessor load steps.
Protection circuitry includes SOA limiting that dynamically reduces maximum output current as VIN–VOUT increases, plus thermal shutdown with 25°C hysteresis and foldback current limiting activated at ≥7.1 A under nominal conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.30 V ±2.0% (3.234–3.366 V), trimmed and guaranteed across 10 mA–7.0 A load range |
| Maximum Output Current | 7.0 A continuous, limited by SOA and thermal shutdown at junction >150°C |
| Dropout Voltage | 1.4 V typical at 7.0 A, enabling operation with input as low as 4.7 V for 3.3 V output |
| Quiescent Current | ≤10 mA at full load, minimizing no-load power loss in high-current systems |
| Ripple Rejection | 80 dB at 120 Hz, suppressing input ripple from upstream switching supplies |
| Thermal Shutdown Threshold | 150°C activation with 25°C hysteresis, preventing latch-up during thermal recovery |
| Input Voltage Range | Up to 17 V absolute max; functional regulation requires VIN ≥ VOUT + 1.4 V |
Pinout & Package
CS5207-3GT3 is housed in a TO-220-3 package (Case 221A) with electrically isolated tab connected to VOUT. The case serves as the output terminal and must be thermally coupled to a heatsink using thermal compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for error amplifier and internal bias circuits; return path for quiescent current |
| 2 | VOUT | Regulated 3.3 V output; electrically tied to metal tab-requires isolation if heatsink is grounded |
| 3 | VIN | Unregulated input supply; must exceed VOUT by ≥1.4 V at 7.0 A to maintain regulation |
Key Features
| Feature | Design Value |
|---|---|
| Composite PNP-NPN output stage | Enables high current delivery with lower saturation voltage than single-transistor designs |
| SOA protection with voltage-dependent current limit | Prevents device destruction during high VIN–VOUT conditions by scaling max IOUT downward as differential rises |
| Fast transient response | Stabilizes within microseconds after load steps up to 7.0 A, critical for CPU core supply |
| Low ESR capacitor compatibility | Stable with 22 μF tantalum (or higher); avoids oscillation caused by ceramic capacitors' near-zero ESR |
| Thermal shutdown with hysteresis | Shuts down at 150°C and re-enables only after cooling to ~125°C, preventing thermal cycling damage |
Applications
| Microprocessor Core Supply | Industrial PLC Power Rail |
|---|---|
Use Scenario: Providing clean, stable 3.3 V to FPGA or ASIC core logic under dynamic load conditions up to 7.0 A. IC Role / Device Role / Timing Role: Primary post-regulator delivering tightly regulated voltage directly to processor VCCINT pins. Use Value: ±2.0% output accuracy and fast transient response prevent logic errors during burst-mode operation. |
Use Scenario: Generating 3.3 V for programmable logic controllers in factory automation cabinets with ambient temperatures up to +70°C. IC Role / Device Role / Timing Role: High-current local regulator replacing multi-stage DC/DC solutions where EMI sensitivity prohibits switching regulators. Use Value: 80 dB ripple rejection suppresses noise from adjacent motor drives and solenoid drivers. |
| Test Equipment Power Module | Medical Diagnostic Imaging Subsystem |
Use Scenario: Powering analog front-end ADCs and precision DACs in benchtop signal analyzers requiring ultra-low noise. IC Role / Device Role / Timing Role: Low-noise linear regulator supplying reference and analog rails, decoupled with parallel tantalum/ceramic capacitors. Use Value: 0.003% RMS output noise (relative to 3.3 V) preserves ENOB in 16-bit+ data converters. |
Use Scenario: Delivering 3.3 V to image sensor interface ICs and timing controllers in portable ultrasound units. IC Role / Device Role / Timing Role: Safety-critical local regulator with thermal and SOA protection ensuring fail-safe shutdown before hazardous overheating. Use Value: 150°C thermal shutdown threshold with 25°C hysteresis provides robust margin against enclosure temperature rise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM396T | 6.0 A max output, 3.3 V fixed, dropout 2.0 V @ 6 A; no SOA protection; TO-3 package | Lacks dynamic SOA limiting and has higher dropout-requires ≥5.3 V input for 3.3 V output at full load | Select when board space allows larger TO-3 footprint and SOA protection is not required for the input voltage profile. |
| LT1585ACT-3.3 | 7.0 A max, 3.3 V fixed, dropout 1.5 V @ 7 A; thermal shutdown only (no SOA or overcurrent) | Missing SOA and overcurrent protection-relies on external current limiting or fusing for fault containment | Choose when using external current-sense monitoring and thermal management is handled at system level. |
Compared with LM396T and LT1585ACT-3.3, the CS5207-3GT3 uniquely integrates SOA protection, delivers tighter ±2.0% output tolerance, and achieves lower 1.4 V dropout-enabling higher efficiency and safer operation in unattended industrial and embedded systems.
Availability
CS5207-3GT3 is available at Aetrix Electronics and suitable for microprocessor core supplies, industrial PLC power rails, and test equipment power modules requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for CS5207-3GT3 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, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The CS5207-3GT3 belongs to onsemi's high-current linear regulator product line, engineered specifically for post-regulation of microprocessors and FPGAs where low-noise, fast transient response, and robust fault protection are mandatory.
FAQ
What is the maximum input voltage rating for the CS5207-3GT3?
The CS5207-3GT3 has an absolute maximum supply voltage of 17 V. Operation above this value risks permanent damage. For reliable regulation at 7.0 A output, VIN must remain ≥ VOUT + 1.4 V (i.e., ≥4.7 V), and typical designs use 5–12 V inputs to balance dropout and power dissipation. The CS5207-3GT3 datasheet specifies 17 V as the non-repetitive peak rating.
Does the CS5207-3GT3 require an external output capacitor, and what type is recommended?
Yes, the CS5207-3GT3 requires an external output capacitor for loop stability. A minimum 22 μF tantalum capacitor is specified, and higher values improve transient response. Ceramic capacitors alone are not recommended due to near-zero ESR, which can cause instability. The CS5207-3GT3 application note recommends parallel networks of tantalum and ceramic capacitors placed close to the load to reduce effective ESR and voltage droop.
How does the Safe Operating Area (SOA) protection function in the CS5207-3GT3?
The CS5207-3GT3 SOA protection dynamically limits maximum output current based on the VIN–VOUT differential voltage: as the differential increases, the allowable current decreases to prevent thermal runaway. This differs from simple current limiting-it protects the output transistor across its entire voltage-current operating envelope. The CS5207-3GT3 implements this via internal sensing and foldback circuitry, independent of external components.
Is the metal tab on the CS5207-3GT3 electrically isolated or connected to a pin?
The metal tab on the CS5207-3GT3 TO-220-3 package is electrically connected to Pin 2 (VOUT), not isolated. This means the heatsink must be electrically insulated from chassis ground unless the output rail is referenced to system ground. Failure to insulate may cause short circuits or ground loops. The CS5207-3GT3 marking diagram and package pin description explicitly state "Tab = VOUT".
What is the thermal resistance from junction to case (RΘJC) for the CS5207-3GT3?
The CS5207-3GT3 has a typical junction-to-case thermal resistance (RΘJC) of 1.6°C/W, as confirmed in the Package Thermal Data table of the official datasheet. This value applies to both TO-220-3 and D2PAK-3 packages. When calculating heatsink requirements, RΘJC must be combined with case-to-sink (RΘCS) and sink-to-ambient (RΘSA) resistances to determine total RΘJA.
CS5207-3GT3 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):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.55V @ 7A
- Current - Output:
- 7A
- Current - Quiescent (Iq):
- 10 mA
- Current - Supply (Max):
- -
- PSRR:
- 80dB (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
CS5207-3GT3 FAQ
1.How can I place an order for CS5207-3GT3 through Aetrix?
Please submit a Request for Quotation (RFQ) for CS5207-3GT3 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 CS5207-3GT3 reliable?
The price and inventory of CS5207-3GT3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CS5207-3GT3 is usually 5 days.
3.What payment methods are accepted for CS5207-3GT3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CS5207-3GT3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CS5207-3GT3?
CS5207-3GT3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CS5207-3GT3 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 CS5207-3GT3?
For technical support, including CS5207-3GT3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CS5207-3GT3 requirements.
6.How does Aetrix verify that CS5207-3GT3 is sourced from the original manufacturer or authorized distributors?
All CS5207-3GT3 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 CS5207-3GT3 meets industry standards.
7.What is the process for return or replacement of CS5207-3GT3?
All CS5207-3GT3 units undergo pre-shipment inspection (PSI). If there is an issue with CS5207-3GT3, 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 CS5207-3GT3 part is unused and in its original packaging.
Return procedure for CS5207-3GT3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CS5207-3GT3 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
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
