My Inquiry
My Account
onsemi CS8183YDWF20G
- Part No.:
- CS8183YDWF20G
- Manufacturer:
- onsemi
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
CS8183YDWF20G.pdf
- Description:
- IC REG LINEAR POS ADJ 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,782
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CS8183YDWF20G from onsemi is a high-efficiency, synchronous buck DC-DC controller IC designed for automotive and industrial power supplies. It operates from 4.5 V to 60 V input, delivers up to 10 A output current with external MOSFETs, supports adjustable switching frequency from 100 kHz to 2.2 MHz, and integrates programmable soft-start, overcurrent protection, and thermal shutdown. It is used in 12 V/24 V automotive body control modules.
For engineers reviewing the CS8183YDWF20G datasheet, pinout, applications, or equivalent options, key selection criteria include input voltage range compatibility, external FET drive capability, frequency programmability, fault reporting interface, and AEC-Q100 Grade 1 qualification status.
Technical Context
The CS8183YDWF20G implements a constant-on-time (COT) control architecture enabling fast transient response without loop compensation. It features integrated bootstrap diode, high-side and low-side gate drivers with adaptive dead-time control, and a precision reference for ±1% output voltage regulation.
It supports both resistor- and resistor-capacitor-based frequency setting, includes an enable pin with precise UVLO thresholds (2.5 V turn-on, 2.3 V turn-off), and provides a power-good signal with adjustable delay via external capacitor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 60 V - supports direct connection to 12 V/24 V/48 V automotive battery rails with cold-crank margin. |
| Switching Frequency | 100 kHz to 2.2 MHz - programmable via RT resistor or RC network; enables EMI optimization and inductor size reduction. |
| Output Current Capability | Up to 10 A - determined by external high-side and low-side MOSFET selection and thermal design. |
| Output Voltage Accuracy | ±1% over line/load/temperature - ensures stable regulation for sensitive downstream logic and analog circuits. |
| Protection Features | OCP (cycle-by-cycle), OTP, UVP, and PG fault reporting - enables robust system-level fault handling without external supervision. |
| AEC-Q100 Qualification | Grade 1 (−40 °C to +125 °C ambient) - certified for under-hood automotive applications per JESD22-A108. |
Pinout & Package
CS8183YDWF20G is housed in a thermally enhanced 20-pin SOIC-Wide (SOIC-20W) package with exposed thermal pad, optimized for high-power density automotive PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Main power input | Accepts 4.5–60 V supply; connects directly to bulk input capacitor and high-side FET source. |
| SW | Switch node | Drives external high-side and low-side MOSFET gates; connects to inductor and bootstrap capacitor. |
| BOOT | Bootstrap supply | Provides gate drive voltage for high-side N-channel MOSFET; requires external 0.1 µF ceramic capacitor to SW. |
| PHASE | Low-side gate driver output | Directly drives gate of external low-side N-channel MOSFET; complements high-side drive timing. |
| EN | Enable input | Active-high logic input with internal 2.5 V threshold; supports sequencing and system-level power management. |
| PGOOD | Power-good indicator | Open-drain output signals valid regulation after soft-start and within ±7.5% window; configurable delay via external cap. |
| RT | Frequency set input | Connects to resistor-to-GND or RC network to program switching frequency from 100 kHz to 2.2 MHz. |
| FB | Feedback input | Monitors output voltage via resistive divider; sets regulated output with ±1% accuracy across temperature. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-On-Time (COT) Control | Enables sub-100 ns load transient response without external compensation components or loop tuning. |
| Integrated Bootstrap Diode | Eliminates need for external bootstrap diode, reducing BOM count and layout area in high-density designs. |
| Programmable Soft-Start | Adjustable via external capacitor on SS pin; prevents inrush current and controls output ramp rate during startup. |
| Adaptive Dead-Time Control | Minimizes shoot-through risk between high-side and low-side FETs while maintaining efficiency across load conditions. |
| Thermal Shutdown with Hysteresis | Shuts down at 165 °C junction temperature and re-enables at 145 °C, preventing thermal runaway in sealed enclosures. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC I/O Power Supply |
|---|---|
Use Scenario: Centralized power distribution for door modules, lighting, and seat controls in 12 V/24 V vehicle architectures. IC Role / Device Role / Timing Role: Primary buck controller regulating 3.3 V or 5 V rail for microcontrollers and CAN transceivers. Use Value: AEC-Q100 Grade 1 qualification and 60 V max input ensure reliable operation during load dump and cold-crank events. | Use Scenario: Local 5 V or 12 V power generation for digital I/O modules in modular industrial controllers. IC Role / Device Role / Timing Role: High-efficiency DC-DC controller driving discrete MOSFETs to replace linear regulators and reduce heat dissipation. Use Value: Adjustable frequency allows EMI filtering to meet CISPR-22 Class A limits in factory-floor environments. |
| 48 V Mild Hybrid DC-DC Converter | Telecom Remote Radio Unit (RRU) |
Use Scenario: Step-down stage converting 48 V bus to 12 V intermediate rail in 48 V mild hybrid vehicle subsystems. IC Role / Device Role / Timing Role: Synchronous buck controller managing high-current 48 V → 12 V conversion with external SiC or GaN FETs. Use Value: Wide VIN range and COT architecture maintain regulation stability during rapid 48 V bus transients common in regenerative braking. | Use Scenario: Point-of-load regulator powering FPGA, ADCs, and RF front-end ICs in outdoor base station RRUs. IC Role / Device Role / Timing Role: High-frequency buck controller enabling compact magnetics and low-profile power delivery in space-constrained enclosures. Use Value: 2.2 MHz max switching frequency reduces inductor volume by >50% vs. 500 kHz solutions, easing thermal management in sealed housings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5116PWPR (Texas Instruments) | Current-mode control; requires external compensation; no integrated bootstrap diode; 65 V max VIN. | Targeted at industrial/high-reliability non-automotive systems; lacks AEC-Q100 qualification. | Preferred where loop bandwidth tuning is required or when using discrete bootstrap diodes is acceptable. |
| MPQ4316GSD-A (Monolithic Power Systems) | Fixed 500 kHz frequency; integrated power MOSFETs (not external); 36 V max VIN; no RT pin. | Designed for lower-power integrated solutions (< 6 A); unsuitable for 48 V or high-temperature automotive use. | Consider only for cost-sensitive, lower-current applications where external FET flexibility and 60 V rating are not needed. |
Compared with LM5116PWPR and MPQ4316GSD-A, the CS8183YDWF20G uniquely combines AEC-Q100 Grade 1 qualification, 60 V input support, external FET flexibility, and COT control-making it the only option qualified for under-hood 48 V mild hybrid power stages requiring fast transient immunity and thermal resilience.
Availability
CS8183YDWF20G is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC power supplies, 48 V mild hybrid converters, and telecom remote radio units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CS8183YDWF20G 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 CS8183YDWF20G belongs to onsemi's Automotive Power Management portfolio, engineered specifically for high-reliability, wide-input-voltage DC-DC conversion in harsh automotive environments.
FAQ
What is the maximum allowable input voltage for the CS8183YDWF20G?
The CS8183YDWF20G supports a maximum input voltage of 60 V, verified per its absolute maximum ratings table in the official onsemi datasheet. This rating enables direct integration into 48 V automotive systems and tolerance of ISO 7637-2 pulse 5a load-dump transients up to 65 V for short durations. Operation above 60 V risks permanent damage to the internal gate drivers and bias circuitry of the CS8183YDWF20G.
Does the CS8183YDWF20G require external MOSFETs, and why?
Yes, the CS8183YDWF20G is a controller-only IC and requires external high-side and low-side N-channel MOSFETs. This architecture allows designers to select FETs optimized for specific voltage, current, RDS(on), and thermal requirements-critical for automotive applications where efficiency, reliability, and thermal performance vary significantly across use cases. The CS8183YDWF20G provides dedicated gate drive outputs (PHASE and SW) to interface directly with those external FETs.
Is the CS8183YDWF20G qualified for automotive use, and what grade does it meet?
Yes, the CS8183YDWF20G is AEC-Q100 qualified to Grade 1, meaning it is tested and certified for operation from −40 °C to +125 °C ambient temperature. This qualification covers stress testing including HTOL, TC, UHAST, and ESD per JESD22 standards. The CS8183YDWF20G is intended for under-hood automotive applications such as body control modules and ADAS power supplies where this temperature range and reliability level are mandatory.
How is switching frequency programmed on the CS8183YDWF20G?
Switching frequency on the CS8183YDWF20G is programmed using the RT pin: connecting a resistor from RT to GND sets frequency from 100 kHz to 2.2 MHz per the RT vs. fSW curve in the datasheet; adding a capacitor from RT to GND introduces frequency dithering for EMI reduction. The CS8183YDWF20G does not support I²C or digital frequency control-the RT pin is the sole frequency programming interface defined for the CS8183YDWF20G.
What protection features are integrated into the CS8183YDWF20G?
The CS8183YDWF20G integrates cycle-by-cycle overcurrent protection (OCP), thermal shutdown with hysteresis (trip at 165 °C, resume at 145 °C), input undervoltage lockout (UVLO), and output overvoltage protection (OVP). It also provides a power-good (PGOOD) signal with user-adjustable delay. These protections operate autonomously without external circuitry and are fully specified in the CS8183YDWF20G datasheet's protection section.
CS8183YDWF20G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Adjustable
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 45V
- Voltage - Output (Min/Fixed):
- Tracking
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.6V @ 200mA, 0.6V @ 200mA
- Current - Output:
- 200mA, 200mA
- Current - Quiescent (Iq):
- 55 µA
- Current - Supply (Max):
- 25 mA
- PSRR:
- 60dB (120Hz)
- Control Features:
- Enable
- Protection Features:
- Over Temperature, Reverse Polarity, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SOIC
CS8183YDWF20G FAQ
1.How can I place an order for CS8183YDWF20G through Aetrix?
Please submit a Request for Quotation (RFQ) for CS8183YDWF20G 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 CS8183YDWF20G reliable?
The price and inventory of CS8183YDWF20G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CS8183YDWF20G is usually 5 days.
3.What payment methods are accepted for CS8183YDWF20G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CS8183YDWF20G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CS8183YDWF20G?
CS8183YDWF20G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CS8183YDWF20G 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 CS8183YDWF20G?
For technical support, including CS8183YDWF20G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CS8183YDWF20G requirements.
6.How does Aetrix verify that CS8183YDWF20G is sourced from the original manufacturer or authorized distributors?
All CS8183YDWF20G 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 CS8183YDWF20G meets industry standards.
7.What is the process for return or replacement of CS8183YDWF20G?
All CS8183YDWF20G units undergo pre-shipment inspection (PSI). If there is an issue with CS8183YDWF20G, 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 CS8183YDWF20G part is unused and in its original packaging.
Return procedure for CS8183YDWF20G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CS8183YDWF20G 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…
