Allegro MicroSystems A8304SESTR-T
- Part No.:
- A8304SESTR-T
- Manufacturer:
- Allegro MicroSystems
- Category:
- Special Purpose Regulators
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
A8304SESTR-T.pdf
- Description:
- IC REG CONV LNB 16QFN
- Quantity:
- Payment:

- Shipping:

Inventory:11,964
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Product details
Overview
A8304SESTR-T from Allegro MicroSystems is a satellite LNB supply and control-voltage regulator for coax-fed front-end power rails. This device is usually assigned to satellite receiver front ends where the board must generate, supervise, and control the LNB supply rail together with the related signaling and fault-management functions.
For engineers reviewing the A8304SESTR-T datasheet, A8304SESTR-T pinout, A8304SESTR-T application, or A8304SESTR-T equivalent, this device is widely used in analog and digital satellite receivers, LNB downconverter power rails, coax-fed tuner front ends, and set-top receiver modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Device Type | LNB supply and control-voltage regulator. |
| Interface | 2-wire serial / I2C-compatible control family. |
| Output Role | Provides controlled LNB output voltage and related signaling functions. |
| Protection | Supports fault monitoring such as overcurrent, undervoltage, or thermal conditions depending on branch. |
| Application Positioning | Dedicated satellite-front-end power and control role. |
| Package Option | 24-lead TSSOP package with 13-inch reel packing. |
| Ambient Temperature | -20°C to +85°C ambient range |
Pinout & Package
The A8304SESTR-T pinout is implemented in the 24-lead TSSOP package and combines the monitored-rail pins, control pins, and reset, watchdog, sequencing, or fault outputs required by the device function.
For PCB design, the main consideration is routing the control interface and power/load paths according to the actual device function instead of treating the part as a generic placeholder.
| Pin / Function | PCB Design and Circuit Role |
|---|---|
| VIN / Boost / LX Nodes | Support the internal power path used to generate the LNB output rail. |
| LNB Output Pins | Deliver the controlled LNB supply to the coax-fed front end. |
| I2C / Serial Control Pins | Configure output level, fault handling, and operating mode through the host controller. |
| Tone / Modulation Pins | Support signaling behavior required by satellite receiver LNB control schemes. |
| Status / IRQ Pins | Expose fault or state information back to the controller. |
Key Features
- Specialized LNB supply role suits satellite receiver front ends.
- I2C-compatible control supports programmable system integration.
- Integrated fault handling helps protect the coax-fed LNB rail.
- Useful when the design needs dedicated front-end power behavior instead of a generic regulator.
Applications
| Satellite Receiver Front Ends | Set-Top Box Tuner Modules |
|---|---|
|
Use Scenario: Powering and controlling the low-noise block downconverter. IC Role: Acts as the dedicated LNB supply and interface regulator. Use Value: Preserves proper front-end biasing and signaling. |
Use Scenario: Boards integrating satellite-tuner supply control. IC Role: Provides regulated LNB output plus fault visibility. Use Value: Reduces external support circuitry for the front end. |
| Integrated Satellite Control Cards | Legacy Satellite Hardware |
|
Use Scenario: Satellite demodulator boards with embedded tuner control. IC Role: Bridges system logic and the coax-fed LNB supply path. Use Value: Improves integration and fault management. |
Use Scenario: Designs already depending on Allegro A829x/A830x control behavior. IC Role: Maintains family-compatible LNB regulation. Use Value: Reduces redesign risk in replacement programs. |
Equivalent & Alternatives
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| A8287SLB | Earlier LNB-regulator branch with a different package/control generation. | Useful in related satellite front-end roles but not a direct package-compatible swap. | Choose only when the board aligns with the earlier family branch. |
| A8600EJPTR-T | Automotive multi-output regulator rather than satellite LNB-specific regulator. | Fits an entirely different system role. | Do not substitute unless the whole application changes. |
Compared with A8287SLB, A8304SESTR-T selection depends on package fit, control behavior, and the exact electrical role the board needs. Compared with A8600EJPTR-T, A8304SESTR-T is the better choice when the design needs a closer match to the board's existing function while keeping the surrounding circuit concept.
Quality
A8304SESTR-T should be sourced through traceable channels with attention to package identity, orderable suffix, and whether the replacement still matches the intended device role.
Production validation should include interface behavior, load-path performance, startup behavior, and thermal or protection checks that matter for the actual end application.
Availability
A8304SESTR-T is available at Aetrix Electronics and is suitable for maintenance, new design qualification, and repeatable production support in systems that depend on this exact device role.
Sample and NPI supply support, as well as urgent in-stock supply support, can also be arranged for prototype builds, pilot runs, and time-critical production needs.
For production builds, confirming lifecycle position, package option, temperature range, and sourcing continuity helps reduce replacement risk.
Manufacturer
Allegro MicroSystems is a semiconductor manufacturer whose portfolio includes sensor, driver, interface, and power-management devices used across automotive, industrial, and embedded electronics.
The A8290/A830x line is a specialized LNB regulator family used in satellite receiver front ends where coax-fed supply generation and control behavior are part of the board architecture.
FAQ
What is A8304SESTR-T used for?
It is used to generate and control the LNB supply rail in analog or digital satellite receiver hardware.
Where can I find the A8304SESTR-T datasheet download?
The A8304SESTR-T datasheet can be accessed from the confirmed source used for this A8290/A830x orderable option.
What should be considered in A8304SESTR-T pinout design?
Designers should review the 24-lead TSSOP package, keep the control path clean, and plan the load-current routing and supply decoupling around the actual application role.
Is A8304SESTR-T a voltage regulator?
Only if the device family is actually a regulator. Otherwise it should be treated as a driver or supervisor according to its real function.
What are common A8304SESTR-T equivalent solutions?
Common candidates depend on package fit, temperature range, output structure, and whether the replacement preserves the same device role on the board.
A8304SESTR-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Allegro MicroSystems
- Series:
- -
- Package/Case:
- 16-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Converter, LNB
- Voltage - Input:
- 10V ~ 16V
- Number of Outputs:
- -
- Voltage - Output:
- 13.3V ~ 19.7V
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QFN/MLP (3x3)
A8304SESTR-T FAQ
1.How can I place an order for A8304SESTR-T through Aetrix?
Please submit a Request for Quotation (RFQ) for A8304SESTR-T 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 A8304SESTR-T reliable?
The price and inventory of A8304SESTR-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for A8304SESTR-T is usually 5 days.
3.What payment methods are accepted for A8304SESTR-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for A8304SESTR-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for A8304SESTR-T?
A8304SESTR-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your A8304SESTR-T 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 A8304SESTR-T?
For technical support, including A8304SESTR-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your A8304SESTR-T requirements.
6.How does Aetrix verify that A8304SESTR-T is sourced from the original manufacturer or authorized distributors?
All A8304SESTR-T 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 A8304SESTR-T meets industry standards.
7.What is the process for return or replacement of A8304SESTR-T?
All A8304SESTR-T units undergo pre-shipment inspection (PSI). If there is an issue with A8304SESTR-T, 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 A8304SESTR-T part is unused and in its original packaging.
Return procedure for A8304SESTR-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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