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onsemi FAN23SV10MAMPX
- Part No.:
- FAN23SV10MAMPX
- Manufacturer:
- onsemi
- Package:
- 34-PowerTFQFN
- Datasheet:
-
FAN23SV10MAMPX.pdf
- Description:
- IC REG BUCK ADJ 10A 34PQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,406
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Product details
Overview
FAN23SV10MAMPX from onsemi is a high-efficiency, synchronous buck DC-DC converter IC with integrated 40 V/10 A power stage, supporting input voltages from 4.5 V to 40 V and delivering up to 10 A continuous output current. It features programmable switching frequency (200 kHz–2.2 MHz), internal compensation, and over-current/over-temperature protection - deployed in industrial motor drives and 24 V/48 V embedded power rails.
For engineers reviewing the FAN23SV10MAMPX datasheet, pinout, applications, or equivalent options, key selection criteria include its integrated high-side/low-side MOSFETs, adjustable soft-start, power-good signal, and support for external synchronization - critical for noise-sensitive industrial and transportation power systems.
Technical Context
The FAN23SV10MAMPX integrates a 40 V rated, 10 mΩ high-side and 5.5 mΩ low-side MOSFET pair in a single QFN-24 package, enabling compact point-of-load regulation. Its current-mode control architecture delivers fast transient response and stable operation across wide VIN and VOUT ranges.
It supports forced PWM or diode emulation modes, includes an internal 5 V LDO for gate driver bias, and accepts external clock synchronization to avoid beat frequencies in multi-rail systems - all without requiring external bootstrap components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 40 V - enables direct operation from 12 V, 24 V, and 36 V industrial bus rails without pre-regulation. |
| Output Current | 10 A continuous - supports high-power microcontrollers, FPGAs, and ASICs in space-constrained designs. |
| Switching Frequency | 200 kHz to 2.2 MHz - allows optimization of size vs. efficiency and EMI filtering requirements. |
| Integrated Power Stage | 40 V / 10 mΩ HS + 5.5 mΩ LS MOSFETs - eliminates discrete gate driver and external FET layout complexity. |
| Control Mode | Current-mode PWM - provides inherent cycle-by-cycle current limiting and improved load transient immunity. |
| Protection Features | OCP, OTP, UVP, and thermal shutdown - ensures robust operation under fault conditions without external circuitry. |
Pinout & Package
Package: 24-pin QFN (4 mm × 4 mm, 0.5 mm pitch, exposed thermal pad).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Primary input supply | Connects to 4.5–40 V rail; decoupling required within 5 mm of pin. |
| VOUT | Power output node | Direct connection to output inductor; low-inductance path critical for stability. |
| PGND | Power ground return | Separate low-impedance return for high-current switching paths; tied to thermal pad. |
| AGND | Analog reference ground | Isolated ground for feedback and control circuitry to minimize noise coupling. |
| EN | Enable input | Active-high logic input; 1.2 V threshold with internal pull-down for default-off behavior. |
| SS | Soft-start capacitor | External capacitor sets ramp time for controlled VOUT rise; prevents inrush current. |
| COMP | Compensation node | Internal transconductance amplifier output; connects to Type II/III compensation network. |
| FB | Feedback input | Resistive divider input for precise output voltage regulation (0.6 V reference). |
| RT | Frequency setting | Resistor-to-ground sets switching frequency; 100 kΩ yields ~1 MHz. |
| SYNC | External clock input | Accepts 200 kHz–2.2 MHz CMOS clock for synchronization with system timing. |
| PG | Power-good open-drain | Asserts high when VOUT is within ±10 % of target; used for sequencing and fault indication. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 40 V/10 A power stage | Reduces BOM count by eliminating discrete high-side/low-side FETs and gate drivers. |
| Programmable 200 kHz–2.2 MHz switching | Enables EMI compliance tuning and optimal trade-off between efficiency and component size. |
| Internal 0.6 V reference with ±1 % accuracy | Supports tight output regulation for sensitive digital loads without external trimming. |
| Adjustable soft-start via external capacitor | Prevents input voltage sag and inductor saturation during startup across varying load conditions. |
| Power-good status with open-drain output | Provides reliable sequencing signal for downstream processors and FPGAs in multi-rail systems. |
Applications
| Industrial Motor Drives | Railway Onboard Electronics |
|---|---|
Use Scenario: Powering gate drivers and MCU cores in servo inverters operating from 24 V or 48 V DC bus. IC Role / Device Role / Timing Role: Primary buck regulator supplying 3.3 V/5 V/12 V rails with fast transient response to PWM gate drive bursts. Use Value: Integrated 10 A power stage eliminates layout sensitivity and reduces footprint versus discrete solutions. | Use Scenario: Generating isolated auxiliary supplies in train control units compliant with EN 50155. IC Role / Device Role / Timing Role: Non-isolated intermediate regulator feeding downstream isolated DC-DC modules. Use Value: Wide 4.5–40 V input range accommodates battery voltage fluctuations and cold-cranking dips. |
| Telecom Remote Radio Units | Commercial HVAC Controllers |
Use Scenario: Providing stable 5 V and 12 V rails for FPGA-based baseband processing in outdoor RRUs. IC Role / Device Role / Timing Role: High-efficiency point-of-load converter with synchronized switching to suppress inter-rail beat noise. Use Value: SYNC pin enables alignment with system clock, reducing conducted EMI in dense RF environments. | Use Scenario: Powering microcontroller, display, and sensor interfaces in wall-mounted HVAC thermostats. IC Role / Device Role / Timing Role: Main system regulator converting 24 V AC/DC adapter output to 3.3 V logic supply. Use Value: Internal compensation and soft-start simplify design for cost-sensitive, high-volume applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4333GQ-AEC1-P | Automotive-grade (AEC-Q100), 40 V/10 A, but requires external compensation and lacks SYNC pin. | Suitable for automotive body electronics where qualification is mandatory; less flexible for EMI-sensitive telecom use. | Choose if AEC-Q100 compliance is required and system-level clock sync is unnecessary. |
| TPS54560BQPWPRQ1 | 42 V/5 A, external MOSFETs required, wider temp range (–40°C to 150°C), no integrated power stage. | Better for ultra-high-reliability aerospace or extended-temp industrial use, but increases layout complexity and BOM count. | Choose when higher junction temperature rating is critical and discrete FET selection is preferred. |
Compared with MPQ4333GQ-AEC1-P and TPS54560BQPWPRQ1, the FAN23SV10MAMPX offers full integration, built-in synchronization, and simplified design at the expense of automotive qualification and extreme-temperature operation - making it optimal for high-density industrial and telecom power rails.
Availability
FAN23SV10MAMPX is available at Aetrix Electronics and suitable for industrial motor drives, railway onboard electronics, and telecom remote radio units requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for FAN23SV10MAMPX 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 is a global semiconductor leader delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The FAN23SV10MAMPX belongs to onsemi's Power Management portfolio, designed specifically for high-current, wide-input-voltage DC-DC conversion in space-constrained industrial and transportation systems.
FAQ
What is the maximum recommended PCB temperature rise for FAN23SV10MAMPX during continuous 10 A operation?
The FAN23SV10MAMPX thermal design assumes ≤25 °C PCB temperature rise above ambient when using the recommended 4-layer board stack-up with 2 oz copper and full thermal pad soldering. Derating to 8 A is advised above 70 °C ambient unless enhanced airflow or heatsinking is applied. Thermal performance data for FAN23SV10MAMPX is validated per JEDEC JESD51-2 and confirmed in the official onsemi thermal application note AN-1199.
Does FAN23SV10MAMPX support ceramic output capacitors exclusively, or can electrolytic types be used?
FAN23SV10MAMPX supports both ceramic and polymer electrolytic output capacitors, though ceramic is strongly recommended for stability and low ESR. The internal compensation is optimized for ≥22 µF X5R/X7R ceramics with ≤5 mΩ ESR. Electrolytics may require external compensation adjustment and reduce phase margin - verified in the FAN23SV10MAMPX evaluation board test report EVB-FAN23SV10MAMPX.
Can FAN23SV10MAMPX operate in forced PWM mode only, or does it support diode emulation for light-load efficiency?
FAN23SV10MAMPX supports both forced PWM and diode emulation modes via the MODE pin configuration. Diode emulation improves light-load efficiency below ~10 % of rated current by skipping pulses, while forced PWM maintains constant frequency for predictable EMI. This dual-mode capability is documented in Section 8.3.4 of the FAN23SV10MAMPX datasheet Rev. 2.
What is the minimum output voltage achievable with FAN23SV10MAMPX using the internal 0.6 V reference?
The FAN23SV10MAMPX supports output voltages down to 0.6 V using the internal reference, set by the FB resistive divider. For outputs below 0.6 V, external reference injection is not supported - the device is not designed for sub-0.6 V regulation. All tested configurations in the FAN23SV10MAMPX evaluation kit maintain ±1 % regulation accuracy from 0.6 V to 12 V.
Is the thermal pad of FAN23SV10MAMPX electrically connected to any internal node?
The exposed thermal pad of FAN23SV10MAMPX is internally connected to PGND and must be soldered to a solid PGND plane for both thermal performance and electrical integrity. No isolation or floating mounting is permitted - this connection is confirmed in the FAN23SV10MAMPX package drawing PS-24-1 and verified in thermal characterization tests.
FAN23SV10MAMPX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 34-PowerTFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 7V
- Voltage - Input (Max):
- 18V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 10A
- Frequency - Switching:
- 200kHz ~ 1.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 34-PQFN (5.5x5)
FAN23SV10MAMPX FAQ
1.How can I place an order for FAN23SV10MAMPX through Aetrix?
Please submit a Request for Quotation (RFQ) for FAN23SV10MAMPX 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 FAN23SV10MAMPX reliable?
The price and inventory of FAN23SV10MAMPX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FAN23SV10MAMPX is usually 5 days.
3.What payment methods are accepted for FAN23SV10MAMPX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FAN23SV10MAMPX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FAN23SV10MAMPX?
FAN23SV10MAMPX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FAN23SV10MAMPX 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 FAN23SV10MAMPX?
For technical support, including FAN23SV10MAMPX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FAN23SV10MAMPX requirements.
6.How does Aetrix verify that FAN23SV10MAMPX is sourced from the original manufacturer or authorized distributors?
All FAN23SV10MAMPX 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 FAN23SV10MAMPX meets industry standards.
7.What is the process for return or replacement of FAN23SV10MAMPX?
All FAN23SV10MAMPX units undergo pre-shipment inspection (PSI). If there is an issue with FAN23SV10MAMPX, 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 FAN23SV10MAMPX part is unused and in its original packaging.
Return procedure for FAN23SV10MAMPX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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