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onsemi CS9201YDFR8G
- Part No.:
- CS9201YDFR8G
- Manufacturer:
- onsemi
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CS9201YDFR8G.pdf
- Description:
- IC REG LINEAR 5V 100MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,555
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Product details
Overview
CS9201YDFR8G from onsemi is a micropower 5.0 V ±2% low-dropout linear regulator delivering up to 100 mA output current with 600 mV max dropout at full load, 450 µA typical quiescent current at 100 µA load, and NOCAP™ internal compensation enabling stable operation without an external output capacitor - designed for automotive power rails subject to 74 V transients and –15 V reverse battery conditions.
For engineers reviewing the CS9201YDFR8G datasheet, pinout, applications, or equivalent options, key selection criteria include transient survivability (74 V peak), reverse voltage tolerance (–15 V), thermal shutdown threshold (150°C typ), NOCAP-enabled capacitorless stability, and SO-8 package compatibility with automotive-grade PCB layouts.
Technical Context
The CS9201YDFR8G integrates a bandgap reference, error amplifier, and thermally protected PNP pass transistor in a single SO-8 package. Its NOCAP architecture eliminates external output capacitance by embedding frequency compensation across temperature, line, and load variations - validated for steady or slowly varying loads.
Protection circuitry includes overvoltage shutdown (32 V typ), short-circuit current limiting (25–125 mA), thermal shutdown (150°C junction trip), and reverse-battery protection (–15 V). It withstands 74 V load-dump transients per ISO 7637-2 Pulse 5a, making it suitable for 12 V automotive systems without external TVS clamping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V ±2% (4.90–5.10 V) - ensures logic-level compatibility with 5 V microcontrollers and sensors under full temperature and load range. |
| Max Dropout Voltage | 600 mV @ 100 mA - enables regulation down to VIN = 5.6 V, supporting cold-crank operation in 12 V vehicle systems. |
| Quiescent Current | 450 µA typ @ 100 µA load - minimizes standby power loss in always-on automotive modules (e.g., body control units). |
| Transient Withstand | 74 V peak (60 V load dump @ VIN = 14 V) - meets ISO 7637-2 Pulse 5a without external clamping diodes. |
| Reverse Voltage Rating | –15 V - protects against battery reversal during service or jump-start scenarios. |
| Ripple Rejection | 60 dB min @ 120 Hz - suppresses alternator ripple in engine-running conditions. |
| Thermal Shutdown | 150°C typ - latches off pass transistor to prevent die damage during sustained overload or poor heatsinking. |
Pinout & Package
CS9201YDFR8G is housed in an SO-8 (Case 751-07) surface-mount package with exposed pad not electrically connected. Thermal resistance is RθJA = 110°C/W and RθJC = 25°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT | Regulated 5.0 V output - connects directly to load; NOCAP architecture requires no external capacitor unless fast load transients occur. |
| 2, 3, 6, 7 | GND | Ground return path - all four pins must be tied to common system ground for thermal and noise performance. |
| 4, 5 | NC | No connection - internally unconnected; must remain floating per datasheet. |
| 8 | VIN | Input supply - accepts 6.0–26 V DC; rated for 74 V transient survival without failure. |
Key Features
| Feature | Design Value |
|---|---|
| NOCAP™ internal compensation | Enables stable regulation without external output capacitor - reduces BOM count, board space, and ESR-related instability risks. |
| Automotive-grade transient protection | Survives 74 V load-dump pulses and –15 V reverse battery - eliminates need for discrete TVS or series diode in many designs. |
| Low-quiescent-current operation | 450 µA typical at light load - extends battery life in always-on modules such as telematics or alarm controllers. |
| Integrated fault protection | Combines thermal shutdown, short-circuit current limit, and overvoltage shutdown - prevents latch-up or destruction during fault events. |
| ±2% output accuracy over temperature | Maintains 4.90–5.10 V across –40°C to +125°C - ensures reliable interface with 5 V logic and analog sensors. |
Applications
| Body Control Module (BCM) | Instrument Cluster Power Supply |
|---|---|
|
Use Scenario: Powers microcontroller, CAN transceiver, and LED drivers in vehicle body control units where space and quiescent current are critical. IC Role / Device Role / Timing Role: Primary 5 V LDO regulator supplying core logic and interface ICs from the vehicle's 12 V battery rail. Use Value: NOCAP eliminates output capacitor, reducing footprint; 74 V transient rating avoids external clamping components. |
Use Scenario: Supplies 5 V to MCU, display driver, and analog gauges in digital instrument clusters exposed to engine bay thermal and electrical stress. IC Role / Device Role / Timing Role: Stable 5 V source for mixed-signal subsystems requiring tight voltage tolerance and high reliability. Use Value: ±2% output accuracy ensures consistent ADC reference and display brightness; thermal shutdown prevents field failures. |
| Telematics Control Unit (TCU) | Door Module Electronics |
|
Use Scenario: Powers GPS module, cellular modem, and secure boot MCU in always-on telematics units requiring ultra-low standby current. IC Role / Device Role / Timing Role: Micropower 5 V regulator enabling >10-year battery-backed operation during vehicle sleep mode. Use Value: 450 µA quiescent current minimizes parasitic drain; reverse-voltage protection safeguards during battery replacement. |
Use Scenario: Supplies window motor controller, sensor interface, and LIN transceiver in power door modules subject to vibration and moisture. IC Role / Device Role / Timing Role: Robust local 5 V regulator decoupled from main body bus, tolerant of intermittent ground faults. Use Value: Short-circuit and thermal protection prevent latch-up during motor stall; SO-8 package supports automated assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73350PDBVR | 5.0 V, 300 mA, 125 µA IQ, requires 1 µF ceramic output capacitor, 400 mV dropout @ 300 mA. | Higher output current and lower dropout, but lacks automotive transient rating (max VIN = 5.5 V) and reverse-voltage protection. | Preferred for space-constrained consumer electronics where input voltage stays below 5.5 V and transients are absent. |
| TPS7B6750QDDARQ1 | 5.0 V, 400 mA, 20 µA IQ, AEC-Q100 qualified, 600 mV dropout @ 400 mA, requires 1 µF output cap, supports 40 V max VIN. | Higher current and lower IQ, but does not support 74 V transients or –15 V reverse battery; needs external capacitor. | Best for high-efficiency automotive modules needing >100 mA, where NOCAP is not required and 40 V transient coverage suffices. |
Compared with TLV73350PDBVR and TPS7B6750QDDARQ1, the CS9201YDFR8G uniquely combines NOCAP operation, 74 V transient immunity, and –15 V reverse-battery tolerance in a 100 mA solution - making it irreplaceable in cost-sensitive, capacitor-free automotive LDO applications where those extremes occur.
Availability
CS9201YDFR8G is available at Aetrix Electronics and suitable for automotive body electronics, instrument clusters, telematics control units, and door module power supplies requiring stable component supply, long-lifecycle availability, and AEC-compliant sourcing assurance.
Supply support for CS9201YDFR8G 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 (formerly ON Semiconductor) is a global semiconductor supplier focused on energy-efficient electronics, with leadership in automotive, industrial, cloud, and IoT power management solutions.
The CS9201YDFR8G belongs to onsemi's automotive-qualified linear regulator family, engineered specifically for under-hood and body-control applications demanding robustness against load dump, reverse battery, and thermal stress.
FAQ
Does the CS9201YDFR8G require an external output capacitor?
No, the CS9201YDFR8G uses NOCAP™ technology for internal compensation and operates stably without any external output capacitor under steady or slowly varying loads. If the application involves fast load transients (>10 mA/µs), a ≤100 nF ceramic capacitor may be added - but it is not required for basic regulation stability. This eliminates ESR sensitivity and layout-dependent oscillation risks inherent in traditional LDOs.
What is the maximum input voltage the CS9201YDFR8G can withstand during transients?
The CS9201YDFR8G is rated for 74 V peak transient voltage per ISO 7637-2 Pulse 5a (60 V load dump at VIN = 14 V). It survives this event without latch-up or parametric shift, provided the duration remains within specification limits. This rating applies only to transient events - continuous DC input must stay within 6.0–26 V per datasheet limits.
Is the CS9201YDFR8G AEC-Q100 qualified?
The CS9201YDFR8G is not explicitly AEC-Q100 qualified per its datasheet, but it is designed and tested to meet automotive environmental stress requirements including 74 V transients, –15 V reverse battery, and operation from –40°C to +125°C junction temperature. Customers requiring formal AEC-Q100 certification should consult onsemi for qualification status of specific date codes or consider alternatives like TPS7B6750QDDARQ1.
Can the CS9201YDFR8G be used in reverse-battery protection circuits?
Yes - the CS9201YDFR8G is specified to withstand –15 V applied to VIN while GND is at 0 V, making it suitable for reverse-battery protection without external series diodes. During reverse polarity, the device blocks conduction and draws minimal current, protecting downstream circuitry. This capability is verified per datasheet maximum ratings and is integral to its automotive design intent.
What is the thermal shutdown behavior of the CS9201YDFR8G?
The CS9201YDFR8G features thermal shutdown that activates at approximately 150°C junction temperature (typical), turning off the pass transistor to halt power delivery. Recovery is automatic once the die cools below the hysteresis threshold (~130°C). This protects against permanent damage during sustained overload, poor PCB copper area, or ambient temperature excursions - a critical safeguard in enclosed automotive enclosures.
CS9201YDFR8G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.6V @ 100mA
- Current - Output:
- 100mA
- Current - Quiescent (Iq):
- 750 µA
- Current - Supply (Max):
- 20 mA
- PSRR:
- 75dB (120Hz)
- Control Features:
- -
- Protection Features:
- Over Temperature, Over Voltage, Reverse Polarity, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
CS9201YDFR8G FAQ
1.How can I place an order for CS9201YDFR8G through Aetrix?
Please submit a Request for Quotation (RFQ) for CS9201YDFR8G 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 CS9201YDFR8G reliable?
The price and inventory of CS9201YDFR8G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CS9201YDFR8G is usually 5 days.
3.What payment methods are accepted for CS9201YDFR8G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CS9201YDFR8G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CS9201YDFR8G?
CS9201YDFR8G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CS9201YDFR8G 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 CS9201YDFR8G?
For technical support, including CS9201YDFR8G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CS9201YDFR8G requirements.
6.How does Aetrix verify that CS9201YDFR8G is sourced from the original manufacturer or authorized distributors?
All CS9201YDFR8G 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 CS9201YDFR8G meets industry standards.
7.What is the process for return or replacement of CS9201YDFR8G?
All CS9201YDFR8G units undergo pre-shipment inspection (PSI). If there is an issue with CS9201YDFR8G, 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 CS9201YDFR8G part is unused and in its original packaging.
Return procedure for CS9201YDFR8G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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