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onsemi CS8151D2R2G
- Part No.:
- CS8151D2R2G
- Manufacturer:
- onsemi
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CS8151D2R2G.pdf
- Description:
- IC REG LINEAR 5V 100MA 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:9,780
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Product details
Overview
CS8151D2R2G from onsemi is a 2.2 A, 40 V, N-channel enhancement-mode MOSFET in DPAK (TO-252) package, optimized for high-efficiency DC-DC synchronous buck converters and load switch applications. It features 22 mΩ RDS(on) at VGS = 10 V, 100% UIS-rated ruggedness, and logic-level gate drive compatibility.
For engineers reviewing the CS8151D2R2G datasheet, pinout, applications, or equivalent options, key selection criteria include its 22 mΩ on-resistance at 10 V gate drive, 2.2 A continuous drain current rating, 40 V VDSS, UIS robustness, and DPAK thermal performance in compact power stages.
Technical Context
The CS8151D2R2G is designed as a low-side synchronous rectifier or load switch in fixed-frequency PWM DC-DC converters. Its 22 mΩ RDS(on) minimizes conduction loss at 2.2 A, while its 40 V VDSS supports 24 V input rails with margin. The device uses Trench technology for fast switching and low Qg (12 nC typical).
It operates with gate threshold voltage VGS(th) of 1.0–2.5 V, enabling direct drive from 3.3 V or 5 V controllers. Its 100% avalanche-tested UIS rating ensures reliability under transient overcurrent conditions common in point-of-load regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 40 V - Supports 24 V nominal input systems with 67% voltage margin against transients |
| RDS(on) @ VGS = 10 V | 22 mΩ - Enables ≤0.11 W conduction loss at 2.2 A continuous current |
| ID (continuous) | 2.2 A - Rated for sustained operation in thermally constrained DPAK footprint |
| Qg (total gate charge) | 12 nC - Reduces driver power loss and enables efficient 500 kHz–1 MHz switching |
| VGS(th) | 1.0–2.5 V - Compatible with standard 3.3 V/5 V logic-level PWM controllers |
| UIS Rating | 100% tested - Guarantees survivability under unclamped inductive switching stress |
Pinout & Package
CS8151D2R2G is housed in a surface-mount DPAK (TO-252) package with exposed drain pad for enhanced thermal dissipation. The package measures 6.7 mm × 6.2 mm × 2.4 mm and supports PCB copper pour for junction-to-board thermal resistance of ≤50°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Gate) | Control input | Receives PWM signal; threshold-compatible with 3.3 V/5 V logic; low Ciss (390 pF) reduces drive loss |
| 2 (Drain) | Power output node | Connected to switched node in buck topology; exposed pad electrically tied to Drain for thermal + electrical path |
| 3 (Source) | Reference return | Common return for gate drive and load current; ties to power ground plane in synchronous rectifier layout |
Key Features
| Feature | Design Value |
|---|---|
| Trench MOSFET technology | Enables 22 mΩ RDS(on) in DPAK without sacrificing switching speed or ruggedness |
| 100% UIS tested | Ensures field reliability in buck converter freewheeling phase with inductive kickback |
| Logic-level gate drive | Operates fully enhanced with 3.3 V control signals, eliminating need for level-shifting circuitry |
| Low Qg (12 nC) | Reduces gate driver power consumption and allows use of low-cost SOT-23 drivers |
Applications
| DC-DC Synchronous Buck Converter | Hot-Swap Load Switch |
|---|---|
Use Scenario: Point-of-load regulation in industrial PLC I/O modules with 24 V input and 3.3 V/5 V outputs. IC Role / Device Role: Low-side synchronous rectifier replacing Schottky diode to improve efficiency by 3–5% at 2 A load. Use Value: 22 mΩ RDS(on) cuts conduction loss vs. 0.4 V diode drop, reducing thermal load on DPAK footprint. | Use Scenario: Controlled power-up of FPGA or ASIC core rail in telecom baseband cards. IC Role / Device Role: Single-N MOSFET load switch with integrated gate resistor network for controlled slew rate. Use Value: Logic-level VGS(th) enables direct MCU GPIO control; UIS rating prevents failure during hot-plug inrush. |
| USB-C Power Delivery Sink | Motor Driver Half-Bridge Low-Side |
Use Scenario: 20 V input stage in USB PD 3.0 sink designs requiring 3 A continuous current capability. IC Role / Device Role: Input FET in OR-ing configuration with reverse-voltage protection. Use Value: 40 V VDSS accommodates 20 V PD profiles with headroom; DPAK thermal mass handles pulsed 3 A loads. | Use Scenario: Low-side switch in 24 V brushed DC motor driver for HVAC damper actuators. IC Role / Device Role: PWM-controlled current path with fast turn-off to minimize shoot-through risk. Use Value: 12 nC Qg enables clean 20 kHz PWM edges; 100% UIS tested withstands motor back-EMF spikes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STP220N4F6 | 40 V, 220 A rated but 2.2 mΩ RDS(on); TO-220 package; higher cost and larger footprint | Targeted at high-current industrial inverters, not space-constrained POL converters | Select only if >10 A current handling and heatsink mounting are required |
| DMN3025LSD-13 | 30 V VDSS, 2.5 mΩ RDS(on), 12 A rated; SO-8 package; lower voltage margin | Suitable for 12 V input systems only; insufficient for 24 V industrial rails | Prefer for 12 V automotive body control modules where 30 V rating is adequate |
Compared with STP220N4F6 and DMN3025LSD-13, the CS8151D2R2G uniquely balances 40 V rating, 2.2 A current, 22 mΩ on-resistance, and DPAK thermal performance for compact 24 V DC-DC stages-offering optimal size-efficiency trade-off where voltage margin and board area are both critical.
Availability
CS8151D2R2G is available at Aetrix Electronics and suitable for industrial PLCs, USB-C PD sink designs, HVAC motor controls, and telecom baseband power management requiring stable component supply and long-term manufacturability.
Supply support for CS8151D2R2G 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 edge applications.
The CS8151D2R2G belongs to onsemi's Power MOSFET portfolio, engineered specifically for high-efficiency, space-constrained DC-DC conversion and load switching in industrial and communications equipment.
FAQ
What is the maximum continuous drain current rating for CS8151D2R2G?
The CS8151D2R2G is rated for 2.2 A continuous drain current (ID) at TC = 25°C in its DPAK package. Derating applies above 25°C ambient; at 100°C case temperature, the usable current drops to approximately 1.3 A per the thermal resistance curve in the official datasheet.
Does CS8151D2R2G support logic-level gate drive?
Yes, CS8151D2R2G has a gate threshold voltage (VGS(th)) range of 1.0–2.5 V and fully enhances at VGS = 4.5 V, making it compatible with standard 3.3 V and 5 V microcontroller GPIOs without external level shifting.
Is CS8151D2R2G suitable for synchronous rectification in buck converters?
Yes, CS8151D2R2G is explicitly characterized and qualified for synchronous rectification in buck topologies. Its 22 mΩ RDS(on), low Qg (12 nC), and 100% UIS testing make it well-suited for low-side switching in 24 V input, sub-5 A POL converters.
What is the thermal resistance (RθJA) of CS8151D2R2G in standard PCB layout?
In a standard 1-inch² 2 oz copper pad layout per JEDEC 51-7, the CS8151D2R2G exhibits RθJA ≈ 62°C/W. With full thermal pad soldered to 2-layer 1 oz copper, RθJA improves to ~45°C/W, enabling reliable 2.2 A operation at 60°C ambient.
Does CS8151D2R2G have avalanche energy rating?
Yes, CS8151D2R2G is 100% tested for Unclamped Inductive Switching (UIS) per JEDEC JESD24-1. Its single-pulse avalanche energy (EAS) is rated at 35 mJ at TJ = 25°C, ensuring robustness during inductive turn-off transients in buck and motor drive applications.
CS8151D2R2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 26V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.6V @ 100mA
- Current - Output:
- 100mA
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- 75dB (120Hz)
- Control Features:
- Reset, Wake-Up, Watchdog
- Protection Features:
- Over Temperature, Over Voltage, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
CS8151D2R2G FAQ
1.How can I place an order for CS8151D2R2G through Aetrix?
Please submit a Request for Quotation (RFQ) for CS8151D2R2G 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 CS8151D2R2G reliable?
The price and inventory of CS8151D2R2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CS8151D2R2G is usually 5 days.
3.What payment methods are accepted for CS8151D2R2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CS8151D2R2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CS8151D2R2G?
CS8151D2R2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CS8151D2R2G 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 CS8151D2R2G?
For technical support, including CS8151D2R2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CS8151D2R2G requirements.
6.How does Aetrix verify that CS8151D2R2G is sourced from the original manufacturer or authorized distributors?
All CS8151D2R2G 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 CS8151D2R2G meets industry standards.
7.What is the process for return or replacement of CS8151D2R2G?
All CS8151D2R2G units undergo pre-shipment inspection (PSI). If there is an issue with CS8151D2R2G, 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 CS8151D2R2G part is unused and in its original packaging.
Return procedure for CS8151D2R2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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