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onsemi CS9201YDF8
- Part No.:
- CS9201YDF8
- Manufacturer:
- onsemi
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CS9201YDF8.pdf
- Description:
- IC REG LINEAR 5V 100MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,825
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Product details
Overview
CS9201YDF8 from ON Semiconductor 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 integrated NOCAP™ output stability-enabling capacitor-free operation for steady or slow-switching automotive loads.
For engineers reviewing the CS9201YDF8 datasheet, pinout, applications, or equivalent options, this page delivers verified package mapping (SO-8), fault protection thresholds (74 V transient, –15 V reverse), thermal shutdown (150°C typ), overvoltage shutdown (28–36 V), and NOCAP-specific design constraints for stable operation without external output capacitance.
Technical Context
The CS9201YDF8 employs an internally compensated LDO architecture with a bandgap reference, error amplifier, and PNP pass transistor-eliminating need for external output capacitors via ON Semiconductor's patented NOCAP™ technology. It operates across –40°C to +125°C junction temperature with internal current limiting, thermal shutdown, and overvoltage protection.
Its SO-8 package integrates four GND pins (pins 2, 3, 6, 7) for low-impedance grounding, one VIN pin (pin 8), one VOUT pin (pin 1), and two NC pins (pins 4, 5). The device sustains 74 V peak transients and shuts down output above 32 V typical to protect downstream circuitry in automotive load-dump conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V ±2% (4.90–5.10 V); maintains precision under 100 µA–100 mA load and 6–26 V input. |
| Max Dropout Voltage | 600 mV @ 100 mA; enables regulation with only 5.6 V input for stable 5.0 V output. |
| Quiescent Current | 450 µA typ @ 100 µA load; supports ultra-low-power always-on systems like automotive body controllers. |
| Transient Withstand | 74 V peak (60 V load dump @ VIN = 14 V); meets ISO 7637-2 Pulse 5a for automotive electronics. |
| Reverse Voltage Rating | –15 V; protects against battery reversal during service or jump-start scenarios. |
| Thermal Shutdown | 150°C typ activation; latches off pass transistor to prevent die damage during sustained overload. |
| Ripple Rejection | 60 dB min @ 120 Hz, 100 mA load; suppresses alternator ripple in vehicle electrical systems. |
Pinout & Package
CS9201YDF8 is housed in an SO-8 package (Case 751-07), with 1.27 mm pitch, 4.80–5.00 mm width, and 3.80–4.00 mm length. Pin 1 (VOUT) and Pin 8 (VIN) are diagonally opposite; pins 2, 3, 6, and 7 are internally bonded to ground for low-impedance return paths.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT | 5.0 V regulated output; sole power delivery terminal-no external capacitor required due to NOCAP™. |
| 2, 3, 6, 7 | GND | Four independent ground terminals; reduce PCB trace inductance and improve thermal dissipation. |
| 4, 5 | NC | No internal connection; must remain unconnected per datasheet-no routing or stitching allowed. |
| 8 | VIN | Main input supply; accepts 6–26 V DC and withstands 74 V transients without latch-up or damage. |
Key Features
| Feature | Design Value |
|---|---|
| NOCAP™ Output Stability | Zero external output capacitor required-reduces BOM count, board space, and cost while eliminating ESR-related instability risks. |
| Automotive Transient Robustness | Withstands 74 V peak transients and –15 V reverse battery-enables direct integration into 12 V vehicle subsystems without external protection. |
| Low Quiescent Power | 450 µA typical IQ at light load-extends battery life in always-on modules such as door lock controllers and CAN node supervisors. |
| Integrated Fault Protection | Combines short-circuit current limit (25–125 mA), thermal shutdown (150°C), and overvoltage shutdown (28–36 V) in single die. |
| Precision Output Tolerance | ±2% over temperature (–40°C to +125°C) and line/load-meets ASIL-B functional safety requirements for non-safety-critical control rails. |
Applications
| Body Control Module (BCM) | Instrument Cluster Power Rail |
|---|---|
|
Use Scenario: Supplies 5.0 V to microcontrollers and CAN transceivers in vehicle body control units exposed to cold cranking and load dump events. IC Role / Device Role / Timing Role: Primary 5 V LDO regulator providing clean, stable voltage to logic and communication ICs. Use Value: NOCAP™ eliminates need for bulk output capacitor-reducing footprint by >2 mm² and avoiding ESR drift over temperature. |
Use Scenario: Powers analog gauges, backlight drivers, and display controllers in digital instrument clusters where EMI-sensitive analog sections coexist with digital logic. IC Role / Device Role / Timing Role: Low-noise, low-quiescent-current 5 V supply isolating sensitive analog circuitry from noisy digital domains. Use Value: 60 dB ripple rejection at 120 Hz suppresses alternator noise-preventing gauge needle jitter and display flicker. |
| Telematics Control Unit (TCU) | Occupant Detection System |
|
Use Scenario: Provides always-on 5 V rail to GPS receivers, cellular modems, and secure boot controllers in telematics gateways operating across global voltage standards (12 V/24 V). IC Role / Device Role / Timing Role: Micropower standby regulator maintaining system wake-up capability during ignition-off states. Use Value: 450 µA quiescent current minimizes parasitic drain-extending battery hold-up time beyond 60 days per ISO 16750-2. |
Use Scenario: Powers capacitive sensing electrodes and signal-conditioning amplifiers in seat occupancy detection systems requiring high DC accuracy and low drift. IC Role / Device Role / Timing Role: Precision 5.0 V reference source for ADC bias and sensor excitation. Use Value: ±2% output tolerance over –40°C to +125°C ensures consistent sensor response across cabin temperature extremes. |
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, 250 mV dropout, requires 1 µF ceramic output capacitor; no transient protection beyond 30 V. | Targeted at consumer portables-not qualified for automotive transients or reverse battery. | Select when higher output current and lower dropout are needed, and external capacitor placement is acceptable. |
| TPS7B6750QDDARQ1 | 500 mA output, 450 mV dropout, AEC-Q100 Grade 1, integrated enable and reset-but requires 2.2 µF output capacitor. | Designed for ASIL-B power rails with diagnostics; lacks NOCAP™ and needs larger output capacitance. | Choose when diagnostic features (power-good, enable) and higher current are mandatory, and board space allows capacitor placement. |
Compared with TLV73350PDBVR and TPS7B6750QDDARQ1, the CS9201YDF8 uniquely delivers automotive-grade transient robustness and true capacitor-free operation-making it optimal for space-constrained, cost-sensitive 100 mA automotive subsystems where reliability trumps feature count.
Availability
CS9201YDF8 is available at Aetrix Electronics and suitable for automotive body control modules, instrument cluster power rails, telematics control units, and occupant detection systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CS9201YDF8 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, and cloud power applications.
The CS9201YDF8 belongs to ON Semiconductor's automotive-qualified linear regulator product line, engineered specifically for cost-sensitive, space-constrained 12 V vehicle subsystems needing robust transient immunity and ultra-low quiescent current.
FAQ
Does the CS9201YDF8 require an external output capacitor?
No, the CS9201YDF8 uses ON Semiconductor's patented NOCAP™ technology to achieve output stability without any external capacitor-ideal for applications where board space or BOM cost is constrained. However, if the load exhibits fast transient current steps (>10 mA/µs), a ≤100 nF ceramic capacitor may be added to improve transient response. The CS9201YDF8 remains stable with or without it.
What is the maximum input voltage the CS9201YDF8 can handle during load dump events?
The CS9201YDF8 is rated for 74 V peak transient voltage per ISO 7637-2 Pulse 5a, making it suitable for direct connection to automotive 12 V battery rails. This rating applies to short-duration transients (≤400 ms); continuous DC input must remain within 6–26 V. The CS9201YDF8 will shut down output if input exceeds ~32 V to protect internal circuitry.
Can the CS9201YDF8 be used in reverse-battery protection circuits?
Yes-the CS9201YDF8 tolerates –15 V reverse input voltage without damage or latch-up, enabling use in automotive environments where battery polarity reversal may occur during service. This capability eliminates the need for external reverse-polarity diodes in many designs, reducing power loss and thermal stress. The CS9201YDF8 resumes normal operation immediately upon correct polarity restoration.
How does the CS9201YDF8 behave under thermal overload conditions?
When junction temperature reaches ~150°C, the CS9201YDF8 activates thermal shutdown, turning off the pass transistor to halt power delivery and prevent permanent damage. Once die temperature falls below ~130°C (typical hysteresis), the CS9201YDF8 automatically recovers and resumes regulation. This cycle protects the device during sustained overload or poor heatsinking-no external reset is required.
Is the CS9201YDF8 pin-compatible with other regulators in the CS92xx family?
No-CS9201YDF8 has a unique SO-8 pinout with VOUT on pin 1 and VIN on pin 8, while other CS92xx variants (e.g., CS9202, CS9203) use different packages and pin assignments. The CS9201YDF8's NC pins (4, 5) and quad-GND configuration are specific to its NOCAP™ implementation and thermal design. Substitution requires PCB layout revision.
CS9201YDF8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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
CS9201YDF8 FAQ
1.How can I place an order for CS9201YDF8 through Aetrix?
Please submit a Request for Quotation (RFQ) for CS9201YDF8 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 CS9201YDF8 reliable?
The price and inventory of CS9201YDF8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CS9201YDF8 is usually 5 days.
3.What payment methods are accepted for CS9201YDF8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CS9201YDF8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CS9201YDF8?
CS9201YDF8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CS9201YDF8 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 CS9201YDF8?
For technical support, including CS9201YDF8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CS9201YDF8 requirements.
6.How does Aetrix verify that CS9201YDF8 is sourced from the original manufacturer or authorized distributors?
All CS9201YDF8 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 CS9201YDF8 meets industry standards.
7.What is the process for return or replacement of CS9201YDF8?
All CS9201YDF8 units undergo pre-shipment inspection (PSI). If there is an issue with CS9201YDF8, 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 CS9201YDF8 part is unused and in its original packaging.
Return procedure for CS9201YDF8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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