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onsemi CS9201YDFR8
- Part No.:
- CS9201YDFR8
- Manufacturer:
- onsemi
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CS9201YDFR8.pdf
- Description:
- IC REG LINEAR 5V 100MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,626
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Product details
Overview
CS9201YDFR8 from ON Semiconductor is a micropower 5.0 V ±2% low-dropout linear regulator delivering up to 100 mA output current with only 450 µA typical quiescent current at 100 µA load, 600 mV max dropout at full load, and NOCAP™ internal compensation enabling stable operation without external output capacitors - designed for automotive power rails subject to 74 V transients and –15 V reverse battery conditions.
For engineers reviewing the CS9201YDFR8 datasheet, pinout, applications, or equivalent options, key selection criteria include NOCAP-enabled capacitorless stability, ±2% output accuracy over –40°C to +125°C, 74 V transient tolerance, thermal shutdown at 150–180°C, and SO-8 package compatibility with automotive-grade PCB layouts.
Technical Context
The CS9201YDFR8 integrates a bandgap reference, error amplifier, and PNP pass transistor in a fully protected linear regulation architecture. It employs ON Semiconductor's proprietary NOCAP™ output stage, eliminating external compensation capacitors by internally stabilizing loop response across temperature, line, and load variations.
Fault protection includes overvoltage shutdown (32 V typ), thermal shutdown (150–180°C), short-circuit current limiting (25–125 mA), reverse-battery tolerance (–15 V), and 74 V peak transient survival - all implemented with internally fused leads and no external components required for basic operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V ±2% (4.90–5.15 V) - ensures reliable 5 V logic supply under automotive temperature and load variation |
| Max Output Current | 100 mA - sufficient for microcontrollers, sensors, and CAN transceivers in body electronics modules |
| Dropout Voltage | 600 mV max @ 100 mA - enables regulation down to VIN = 5.6 V, supporting cold-crank operation |
| Quiescent Current | 450 µA typ @ 100 µA load - minimizes standby power draw in always-on vehicle subsystems |
| Transient Tolerance | 74 V peak - survives ISO 7637-2 Load Dump pulses without external clamping |
| Reverse Voltage Rating | –15 V - withstands battery polarity reversal during service or jump-start scenarios |
| Ripple Rejection | 60–75 dB @ 120 Hz - suppresses alternator ripple without external filtering |
Pinout & Package
CS9201YDFR8 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 | 5.0 V regulated output - connects directly to load; NOCAP eliminates need for output capacitor |
| 2, 3, 6, 7 | GND | Ground return path - four pins reduce ground impedance and improve thermal conduction |
| 4, 5 | NC | No connection - unused die pads; must remain unconnected per design |
| 8 | VIN | Input voltage terminal - accepts 6–26 V DC with 74 V transient survivability |
Key Features
| Feature | Design Value |
|---|---|
| NOCAP™ internal compensation | Stable regulation without external output capacitor - reduces BOM count, board space, and ESR sensitivity |
| Automotive-grade fault protection | Integrated reverse-battery, short-circuit, overvoltage (32 V), and thermal shutdown - eliminates discrete protection circuitry |
| Low-quiescent-current operation | 450 µA typical at light load - extends battery life in always-on modules like door controllers and alarm systems |
| High-accuracy output | ±2% over –40°C to +125°C - meets AEC-Q100 Grade 1 requirements for engine bay and cabin electronics |
| Robust transient handling | 74 V peak survivability - complies with ISO 7637-2 Pulse 5a without external TVS diodes |
Applications
| Body Control Module (BCM) | Instrument Cluster Power Supply |
|---|---|
Use Scenario: Low-power microcontroller and sensor rail in vehicle door module with intermittent wake-up and long sleep cycles. IC Role / Device Role / Timing Role: Primary 5 V LDO regulator supplying MCU core, LIN transceiver, and Hall-effect sensors. Use Value: NOCAP eliminates output capacitor, reducing footprint and avoiding ESR-related instability during cold-crank voltage sag. |
Use Scenario: Stable 5 V supply for digital display driver ICs and EEPROM in analog/digital instrument clusters. IC Role / Device Role / Timing Role: Post-regulator after buck converter, providing clean, accurate 5 V for display timing and memory interface. Use Value: ±2% output accuracy ensures consistent LCD bias and SPI communication margins across temperature extremes. |
| Telematics Control Unit (TCU) Standby Rail | Occupant Detection System Sensor Interface |
Use Scenario: Always-on 5 V rail powering GPS receiver and cellular modem controller during vehicle sleep mode. IC Role / Device Role / Timing Role: Micropower LDO maintaining real-time clock and wake-up logic while minimizing parasitic drain. Use Value: 450 µA quiescent current enables multi-year battery backup without compromising wake latency or signal integrity. |
Use Scenario: Powering capacitive or resistive occupant detection sensors and associated signal conditioning amplifiers. IC Role / Device Role / Timing Role: Precision 5 V reference and supply for ADC front-end and analog sensor excitation. Use Value: 60–75 dB ripple rejection prevents alternator noise from corrupting low-level sensor measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73350PDBVR | 300 mA output, 50 µA IQ, requires 1 µF minimum output capacitor, 250 mV dropout @ 300 mA | Better for higher-current loads but incompatible with NOCAP capacitorless layout | Select when >100 mA load or tighter dropout is required; redesign needed for output capacitance |
| TPS7B6750QDDARQ1 | AEC-Q100 Grade 1, 150 mA, 20 µA IQ, 400 mV dropout, requires 1 µF ceramic output cap | Higher reliability grade and lower IQ, but lacks NOCAP and adds capacitor dependency | Prefer for new automotive designs requiring extended qualification; not drop-in for CS9201YDFR8 layouts |
Compared with TLV73350PDBVR and TPS7B6750QDDARQ1, the CS9201YDFR8 uniquely supports capacitorless operation in space-constrained automotive modules, trades off higher IQ for proven NOCAP stability, and delivers validated 74 V transient survival without external protection - making it optimal for legacy-compatible or cost-sensitive BCM and sensor node designs.
Availability
CS9201YDFR8 is available at Aetrix Electronics and suitable for automotive body electronics, instrument cluster power supplies, telematics standby rails, and occupant detection system interfaces requiring stable component supply with long lifecycle visibility.
Supply support for CS9201YDFR8 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
ON Semiconductor (now onsemi) is a global semiconductor supplier specializing in energy-efficient power, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The CS9201YDFR8 belongs to ON Semiconductor's automotive-qualified linear regulator product line, engineered specifically for robust, low-component-count power management in harsh-temperature, high-transient environments such as vehicle body control and safety-critical subsystems.
FAQ
What does NOCAP™ mean for CS9201YDFR8 layout design?
NOCAP™ means the CS9201YDFR8 achieves internal loop stability without requiring an external output capacitor - eliminating BOM cost, PCB area, and ESR sensitivity. For the CS9201YDFR8, this allows direct connection of VOUT to load with no capacitor, provided the application uses steady or slowly varying loads. Transient-heavy loads may require ≤100 nF for suppression.
Does CS9201YDFR8 meet AEC-Q100 requirements?
The CS9201YDFR8 is specified for operation from –40°C to +125°C junction temperature and features automotive-grade protections including 74 V transient survival and –15 V reverse-battery tolerance. While the original datasheet predates formal AEC-Q100 certification, its design intent, test conditions, and application focus align with Grade 1 requirements - many customers qualify it per AEC-Q100 Rev G for body electronics use.
What is the maximum input voltage for continuous operation of CS9201YDFR8?
The CS9201YDFR8 supports continuous DC input voltages from 6.0 V to 26 V. Its overvoltage shutdown activates at ~32 V (typical), and it can survive 74 V peak transients per ISO 7637-2 Pulse 5a - but sustained operation above 26 V risks permanent damage and is outside absolute maximum ratings.
Can CS9201YDFR8 replace CS9201YDF8 in existing designs?
Yes - CS9201YDFR8 and CS9201YDF8 share identical electrical specifications, pinout, and SO-8 package. The "R" suffix denotes tape-and-reel packaging (2500 units), while "8" indicates rail packaging (95 units). No PCB or schematic changes are needed when substituting CS9201YDFR8 for CS9201YDF8 in production.
How does thermal shutdown work in CS9201YDFR8?
The CS9201YDFR8 incorporates thermal shutdown that disables the pass transistor when junction temperature exceeds 150–180°C (typical). This protects against overheating due to excessive power dissipation or ambient temperature rise. Recovery is automatic once the die cools below the hysteresis threshold - no external reset is required for the CS9201YDFR8 to resume regulation.
CS9201YDFR8 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
CS9201YDFR8 FAQ
1.How can I place an order for CS9201YDFR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for CS9201YDFR8 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 CS9201YDFR8 reliable?
The price and inventory of CS9201YDFR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CS9201YDFR8 is usually 5 days.
3.What payment methods are accepted for CS9201YDFR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CS9201YDFR8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CS9201YDFR8?
CS9201YDFR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CS9201YDFR8 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 CS9201YDFR8?
For technical support, including CS9201YDFR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CS9201YDFR8 requirements.
6.How does Aetrix verify that CS9201YDFR8 is sourced from the original manufacturer or authorized distributors?
All CS9201YDFR8 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 CS9201YDFR8 meets industry standards.
7.What is the process for return or replacement of CS9201YDFR8?
All CS9201YDFR8 units undergo pre-shipment inspection (PSI). If there is an issue with CS9201YDFR8, 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 CS9201YDFR8 part is unused and in its original packaging.
Return procedure for CS9201YDFR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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