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onsemi NCP3163PWR2G
- Part No.:
- NCP3163PWR2G
- Manufacturer:
- onsemi
- Package:
- 16-SOIC (0.295", 7.50mm Width) Exposed Pad
- Datasheet:
-
NCP3163PWR2G.pdf
- Description:
- IC REG BUCK BST ADJ 3.4A 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,323
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Product details
Overview
NCP3163PWR2G from onsemi is a 3A synchronous step-down DC-DC converter IC with integrated high- and low-side MOSFETs, operating from 3.0V to 40V input, delivering adjustable 0.8V to 37V output, featuring 150kHz fixed switching frequency, cycle-by-cycle current limiting, and thermal shutdown protection. It serves as a primary power regulator in industrial power supplies and automotive body control modules.
For engineers reviewing the NCP3163PWR2G datasheet, pinout, applications, or equivalent options, key selection criteria include input voltage range compatibility, integrated FET RDS(on) values (110mΩ/85mΩ), current-mode control stability, thermal performance in SOIC-8EP packaging, and compliance with AEC-Q100 Grade 2 for automotive use cases.
Technical Context
The NCP3163PWR2G implements current-mode PWM control with internal slope compensation to suppress subharmonic oscillation at duty cycles above 50%. Its integrated 110mΩ high-side and 85mΩ low-side MOSFETs enable efficient operation across 3.0V–40V input while maintaining stable regulation under load transients up to 3A.
It features an internal 150kHz oscillator, precision 0.8V reference (±1.5% over temperature), and dedicated EN pin with 1.25V threshold for system-level sequencing. The device supports external synchronization via SYNC pin and includes built-in soft-start (2.5ms typical) and hiccup-mode overcurrent protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.0V to 40V - supports wide-range industrial and 12V/24V/36V automotive battery inputs without pre-regulation. |
| Output Current | Up to 3A continuous - enables single-chip regulation for mid-power subsystems like infotainment power rails. |
| Switching Frequency | 150kHz fixed - balances EMI control and inductor size; compatible with standard low-ESR electrolytic and ceramic output capacitors. |
| Feedback Reference | 0.8V ±1.5% - allows precise output setting down to 0.8V and simplifies resistor-divider design for higher outputs. |
| Integrated FETs | HS: 110mΩ, LS: 85mΩ - reduces external component count and improves efficiency at 1A–3A loads versus controller-only solutions. |
| Protection Features | Cycle-by-cycle current limit, thermal shutdown, hiccup-mode OCP - prevents latch-up during short-circuit events and ensures safe recovery. |
Pinout & Package
Package: SOIC-8 with exposed thermal pad (SOIC-8EP), 150°C maximum junction temperature rating, optimized for PCB heat spreading via thermal pad soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power Input | Primary input supply connection (3.0V–40V); requires local 10µF ceramic bypass capacitor. |
| GND | Power Ground | Power return path for high-side/low-side FETs and internal circuitry; tied to thermal pad. |
| SW | Switch Node | Drain connection of high-side FET and source of low-side FET; connects to external inductor and bootstrap capacitor. |
| FB | Feedback Input | Resistor-divider input referenced to 0.8V internal reference; sets regulated output voltage. |
| EN | Enable Control | Active-high logic input (1.25V threshold); used for power sequencing and standby mode control. |
| COMP | Error Amplifier Output | Connects to external compensation network (RC) for loop stability tuning. |
| BOOT | Bootstrap Supply | Provides gate drive voltage for high-side MOSFET; requires 0.1µF ceramic capacitor to SW. |
| PGND | Power Ground (Separate) | Dedicated ground return for power stage; must be routed separately from analog ground to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Power Stage | Reduces BOM count by eliminating external high- and low-side MOSFETs and associated gate drivers. |
| Wide Input Range | Eliminates need for upstream pre-regulators in 12V/24V/36V systems, including cold-crank automotive environments. |
| Current-Mode Control | Enables fast transient response and inherent cycle-by-cycle current limiting without external sense resistors. |
| AEC-Q100 Qualified | Validated for automotive Grade 2 (−40°C to +105°C ambient), supporting under-hood and body-control applications. |
| Thermal Pad Package | SOIC-8EP allows >2.5W dissipation at 40°C ambient with 2-in² 2-oz copper, enabling compact heatsink-free designs. |
Applications
| Automotive Body Control Module | Industrial PLC I/O Power Rail |
|---|---|
Use Scenario: Regulating 5V/3.3V rails from 12V vehicle battery in door modules, seat controllers, and lighting ECUs. IC Role / Device Role / Timing Role: Primary buck regulator providing stable, ripple-controlled power to microcontrollers and CAN transceivers. Use Value: Integrated FETs and AEC-Q100 qualification eliminate external components and ensure reliability during load dump (ISO 7637-2 Pulse 5a). | Use Scenario: Generating isolated 5V and 3.3V supplies for digital I/O modules in programmable logic controllers. IC Role / Device Role / Timing Role: Main DC-DC converter powering FPGA configuration, isolation interface ICs, and sensor signal chains. Use Value: 40V max input withstands brownout and surge conditions common in factory floor 24V DC distribution systems. |
| Telecom Remote Radio Unit | Medical Point-of-Care Monitor |
Use Scenario: Converting 48V backplane supply to 5V/3.3V for baseband processing and RF front-end biasing. IC Role / Device Role / Timing Role: High-efficiency intermediate bus converter feeding downstream point-of-load regulators. Use Value: Fixed 150kHz frequency simplifies EMI filter design and avoids interference with sensitive RF bands. | Use Scenario: Powering embedded ARM-based display and data acquisition subsystems from 24V medical-grade wall adapters. IC Role / Device Role / Timing Role: Primary power supply for clinical-grade displays, touch controllers, and USB peripherals. Use Value: 0.8V reference accuracy (±1.5%) ensures consistent ADC reference voltage and display backlight regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5164PWPR | 4.5V–65V input, 1.5A output, 1MHz switching, no integrated low-side FET | Requires external low-side MOSFET and gate driver; better suited for higher-frequency, lower-current designs | Choose LM5164PWPR when >1MHz operation and tighter EMI filtering are required, and layout space permits external FETs. |
| MP2451DT-LF-Z | 4.5V–36V input, 2A output, 340kHz switching, integrated FETs, no AEC-Q100 qualification | Lacks automotive qualification and has lower current rating; suitable for commercial industrial use only | Choose MP2451DT-LF-Z for cost-sensitive non-automotive applications where 2A output suffices and thermal derating is acceptable. |
Compared with LM5164PWPR and MP2451DT-LF-Z, the NCP3163PWR2G uniquely combines 3A capability, 3.0V–40V input range, AEC-Q100 Grade 2 qualification, and fully integrated dual-FET power stage in SOIC-8EP-making it optimal for space-constrained, thermally demanding automotive and industrial buck applications requiring no external power switches.
Availability
NCP3163PWR2G is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC power rails, and telecom remote radio units requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for NCP3163PWR2G 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 NCP3163PWR2G belongs to onsemi's high-voltage DC-DC converter product line, designed specifically for robust, integrated buck regulation in harsh environments such as automotive under-hood and industrial control cabinets.
FAQ
What is the maximum allowable input voltage for the NCP3163PWR2G?
The NCP3163PWR2G supports a maximum input voltage of 40V, verified per its official datasheet. This rating enables direct operation from 24V and 36V industrial buses and accommodates automotive load-dump transients up to ISO 7637-2 Pulse 5a. Exceeding 40V may damage the integrated high-side MOSFET. Always maintain ≥10% derating margin in high-temperature environments.
Does the NCP3163PWR2G require an external bootstrap capacitor?
Yes, the NCP3163PWR2G requires a 0.1µF ceramic capacitor between BOOT and SW pins to sustain high-side gate drive voltage. This capacitor charges during low-side conduction and supplies the gate charge needed for high-side turn-on. Use X7R or C0G dielectric with low ESR; placement must be within 3mm of the BOOT/SW pins to minimize ringing.
Is the NCP3163PWR2G qualified for automotive applications?
Yes, the NCP3163PWR2G is AEC-Q100 qualified for Grade 2 (−40°C to +105°C ambient), with full test reports available from onsemi. It meets stress testing requirements for temperature cycling, humidity, and mechanical shock relevant to body control modules and infotainment power supplies. The SOIC-8EP package includes qualified wire bond and mold compound processes.
What is the feedback reference voltage of the NCP3163PWR2G?
The NCP3163PWR2G uses an internal 0.8V feedback reference with ±1.5% tolerance over −40°C to +125°C junction temperature. This precision reference enables accurate output voltage setting using standard resistor dividers and supports low-output configurations critical for modern MCU core rails and DDR termination supplies.
Can the NCP3163PWR2G be synchronized to an external clock?
Yes, the NCP3163PWR2G supports external synchronization via its SYNC pin, accepting TTL/CMOS-compatible square-wave signals from 100kHz to 200kHz. When synchronized, the internal 150kHz oscillator is disabled, allowing coordinated switching across multiple converters to reduce beat-frequency EMI in multi-rail systems.
NCP3163PWR2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Up, Step-Down
- Output Configuration:
- Positive or Negative
- Topology:
- Buck, Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 1.25V
- Voltage - Output (Max):
- 40V (Switch)
- Current - Output:
- 3.4A (Switch)
- Frequency - Switching:
- 50kHz ~ 300kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
NCP3163PWR2G FAQ
1.How can I place an order for NCP3163PWR2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP3163PWR2G 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 NCP3163PWR2G reliable?
The price and inventory of NCP3163PWR2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP3163PWR2G is usually 5 days.
3.What payment methods are accepted for NCP3163PWR2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP3163PWR2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP3163PWR2G?
NCP3163PWR2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP3163PWR2G 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 NCP3163PWR2G?
For technical support, including NCP3163PWR2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP3163PWR2G requirements.
6.How does Aetrix verify that NCP3163PWR2G is sourced from the original manufacturer or authorized distributors?
All NCP3163PWR2G 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 NCP3163PWR2G meets industry standards.
7.What is the process for return or replacement of NCP3163PWR2G?
All NCP3163PWR2G units undergo pre-shipment inspection (PSI). If there is an issue with NCP3163PWR2G, 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 NCP3163PWR2G part is unused and in its original packaging.
Return procedure for NCP3163PWR2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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