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onsemi CAT6201VP2-GT3
- Part No.:
- CAT6201VP2-GT3
- Manufacturer:
- onsemi
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
CAT6201VP2-GT3.pdf
- Description:
- IC REG LIN POS ADJ 300MA 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,147
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Product details
Overview
CAT6201VP2-GT3 from onsemi is an automotive-grade adjustable CMOS LDO regulator delivering 300 mA continuous output current with 250 mV typical dropout at full load, operating across 3.3 V to 13.5 V input range and supporting user-programmable output voltage (via external resistor divider) and current limit (via REXT on ILIM pin). It is deployed in vehicle body control modules for powering microcontrollers and sensors under harsh battery transients.
For engineers reviewing the CAT6201VP2-GT3 datasheet, pinout, applications, or equivalent options, key selection considerations include its AEC-Q100 qualification, reverse-current blocking capability, fault-indicating FLT pin, soft-start via BYP capacitor, and thermal shutdown with 140 °C trip point.
Technical Context
The CAT6201VP2-GT3 uses a low-RON P-channel pass transistor enabling reverse-current protection when VOUT exceeds VIN, critical for automotive battery fault scenarios. Its internal 1.25 V reference feeds an error amplifier controlling the pass device, with adjustable current limiting set by external resistor on ILIM and soft-start timing governed by capacitor on BYP.
Functional block integration includes enable logic with internal pull-down, active-low open-drain FLT output signaling under-voltage, over-current (with 3 ms blanking), or thermal shutdown, and bias circuitry stable with ceramic output capacitors as low as 2.2 µF. The device operates across −40 °C to +125 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 300 mA continuous - supports mid-power MCU and peripheral rails without derating at TA ≤ 85 °C. |
| Dropout Voltage | 250 mV typical at 300 mA - enables regulation down to VIN = VOUT + 0.25 V, critical during cold-crank (6.5 V battery). |
| Input Voltage Range | 3.3 V to 13.5 V - covers full automotive battery range including load dump (up to 14 V tolerated on VOUT). |
| Output Accuracy | ±1.5% initial, ±2.5% over temperature - ensures stable ADC reference and sensor biasing across cabin and under-hood environments. |
| Fault Response | FLT active-low with 3 ms blanking - prevents false triggering during brief load surges while reliably flagging sustained over-current or thermal events. |
| Thermal Protection | 140 °C shutdown with 10 °C hysteresis - protects die during sustained overload or poor PCB thermal design. |
| PSRR | 62 dB at 1 kHz - suppresses alternator ripple and switching noise from upstream DC/DC converters. |
Pinout & Package
Package: 8-pad 2 mm × 3 mm TDFN (Case 511AK), with exposed thermal pad internally connected to GND. Thermal resistance θJA = 92 °C/W with proper PCB copper pour.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input supply | Accepts 3.3–13.5 V; requires ≥1 µF ceramic bypass near pin to stabilize input impedance. |
| FLT | Fault indicator output | Open-drain active-low signal indicating UVLO, over-current (>3 ms duration), or thermal shutdown. |
| EN | Enable control input | Active-high logic; internal pull-down ensures safe default OFF state if left floating. |
| BYP | Soft-start timing control | Capacitor to GND sets turn-on time (e.g., 10 nF → ~1 ms); floating disables soft-start. |
| GND | Ground reference | Primary ground return; center thermal pad must be soldered to PCB ground plane for thermal performance. |
| ILIM | Current limit programming | Resistor to GND sets trip point (e.g., 68 kΩ → 450 mA ILIM); not short-circuit current. |
| VADJ | Output voltage feedback | 1.25 V reference node; resistor divider (R1/R2) between VOUT and GND programs output per VOUT = 1.25×(1+R1/R2). |
| VOUT | Regulated output | Delivers adjustable voltage (≥1.25 V); protected against reverse battery faults up to 14 V applied directly to this pin. |
Key Features
| Feature | Design Value |
|---|---|
| Reverse-current blocking | Prevents backfeed from VOUT to VIN during battery reversal or remote load faults - eliminates need for external blocking diode. |
| User-programmable current limit | Adjustable trip point (150–600 mA typical) via single resistor on ILIM - enables precise system-level fault coordination without redesign. |
| Integrated soft-start | Controlled ramp-up via BYP capacitor - avoids inrush into large downstream capacitance (e.g., ECU power domains) and reduces input supply stress. |
| Stable with ceramic capacitors | Minimum 2.2 µF X7R/X5R ceramic output cap - eliminates cost and footprint of tantalum or aluminum electrolytic capacitors. |
| AEC-Q100 qualified | Rated for Grade 1 (−40 °C to +125 °C) operation with PPAP documentation support - meets OEM requirements for body electronics and ADAS subsystems. |
Applications
| Body Control Module (BCM) | Instrument Cluster Power Supply |
|---|---|
|
Use Scenario: Powers 3.3 V microcontroller, CAN transceiver, and LED drivers in centralized vehicle body controller. IC Role / Device Role / Timing Role: Primary post-regulator supplying clean, fault-protected 3.3 V rail from 12 V battery. Use Value: Reverse-current blocking prevents backfeed during battery jump-start; FLT pin enables diagnostic logging of over-current events in real time. |
Use Scenario: Supplies 5 V rail for TFT LCD controller and touch interface in digital instrument cluster. IC Role / Device Role / Timing Role: Adjustable LDO configured for 5.0 V output with tight initial accuracy and low tempco. Use Value: ±1.5% initial accuracy ensures consistent display brightness and ADC reference stability; PSRR >60 dB suppresses alternator noise. |
| Rear Camera ECU | Door Module Sensor Hub |
|
Use Scenario: Provides 1.8 V core voltage for image signal processor (ISP) in rear-view camera module. IC Role / Device Role / Timing Role: Low-noise, low-dropout regulator with fast transient response to handle ISP burst-mode loads. Use Value: 250 mV dropout allows operation during cold-crank (6.5 V battery); soft-start prevents ISP reset during power-up. |
Use Scenario: Powers Hall-effect position sensors, window motor drivers, and LIN transceiver in door control unit. IC Role / Device Role / Timing Role: Fault-tolerant LDO with programmable current limit protecting against shorted sensor wiring. Use Value: ILIM pin enables setting 250 mA limit matching sensor hub max draw; FLT alerts MCU before thermal shutdown occurs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar adjustable LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCP1117ST50T3G | Fixed 5.0 V output; no adjustable VOUT or ILIM; higher 1.2 V dropout at 800 mA. | Lacks programmability and automotive qualification; suitable only for non-critical 5 V rails. | Select only if fixed 5 V output suffices and AEC-Q100 is not required. |
| TLV73318PDBVR | Lower 300 mA rating; 170 mV dropout; no FLT pin or reverse-current blocking; not AEC-Q100 qualified. | Targeted at consumer portables; lacks fault diagnostics and automotive robustness. | Consider only for cost-sensitive, non-automotive designs where fault reporting and reverse protection are unnecessary. |
Compared with NCP1117ST50T3G and TLV73318PDBVR, CAT6201VP2-GT3 uniquely combines AEC-Q100 qualification, reverse-current blocking, programmable current limit, and active fault reporting - making it the only choice for safety-aware automotive power nodes requiring diagnostic visibility and battery-fault resilience.
Availability
CAT6201VP2-GT3 is available at Aetrix Electronics and suitable for automotive body electronics, instrument clusters, and ADAS camera ECUs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for CAT6201VP2-GT3 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 specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.
The CAT6201VP2-GT3 belongs to onsemi's automotive-qualified LDO portfolio, engineered specifically for robustness in 12 V vehicle electrical systems - emphasizing reverse-battery tolerance, fault diagnostics, and thermal resilience in space-constrained modules.
FAQ
What is the maximum input voltage the CAT6201VP2-GT3 can withstand on its VOUT pin?
The CAT6201VP2-GT3 is designed to withstand up to 14 V applied directly to the VOUT pin - a critical feature for automotive applications where wiring faults may connect battery voltage to downstream loads. This reverse-voltage tolerance prevents damage during battery jump-starts or harness shorts, eliminating the need for external protection diodes in most implementations. CAT6201VP2-GT3 maintains this rating across its full operating temperature range.
How do I configure the CAT6201VP2-GT3 for a 5.0 V output?
To set CAT6201VP2-GT3 to 5.0 V output, connect a resistor divider between VOUT and GND with the midpoint tied to VADJ. Using the formula VOUT = 1.25 V × (1 + R1/R2), select R2 = 1.0 kΩ and R1 = 3.0 kΩ (standard 1% values) to achieve 5.0 V nominal. Ensure total divider current stays between 10 µA and 1 mA - here, ~1.25 mA - for optimal noise and accuracy. CAT6201VP2-GT3's ±1.5% initial VADJ tolerance ensures final output remains within specification.
Does the CAT6201VP2-GT3 require an external capacitor on the BYP pin?
No, the BYP pin on CAT6201VP2-GT3 is optional: leaving it floating disables soft-start, resulting in immediate turn-on. To implement controlled ramp-up (e.g., to limit inrush into large output capacitance), connect a capacitor from BYP to GND - 10 nF yields ~1 ms turn-on time, while 100 nF extends it to ~10 ms. CAT6201VP2-GT3's internal soft-start circuitry eliminates the need for external timing components beyond this single capacitor.
What does the FLT pin indicate, and how is it used in system diagnostics?
The FLT pin on CAT6201VP2-GT3 is an active-low open-drain output that asserts during three fault conditions: input under-voltage (VIN < programmed VOUT), over-current lasting longer than 3 ms, or thermal shutdown at 140 °C. It enables real-time system diagnostics - for example, a microcontroller can monitor FLT to log over-current events or initiate safe shutdown sequences. CAT6201VP2-GT3's 3 ms blanking prevents nuisance trips during transient load spikes, improving diagnostic reliability.
Is the CAT6201VP2-GT3 compatible with ceramic output capacitors, and what is the minimum value?
Yes, CAT6201VP2-GT3 is fully stable with ceramic output capacitors, requiring only 2.2 µF minimum (X7R or X5R dielectric) placed close to the VOUT and GND pins. This eliminates reliance on larger, less reliable electrolytic or tantalum capacitors. Increasing COUT to 4.7 µF further improves transient response to load steps - a key advantage in automotive ECUs where rapid MCU wake/sleep cycles demand tight output regulation. CAT6201VP2-GT3's internal compensation is optimized for this ceramic-only solution.
CAT6201VP2-GT3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Adjustable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 13.5V
- Voltage - Output (Min/Fixed):
- 1.25V
- Voltage - Output (Max):
- 12.5V
- Voltage Dropout (Max):
- 0.35V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 150 µA
- Current - Supply (Max):
- 300 µA
- PSRR:
- 62dB ~ 52dB (1kHz ~ 20kHz)
- Control Features:
- Current Limit, Enable, Soft Start
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN (2x3)
CAT6201VP2-GT3 FAQ
1.How can I place an order for CAT6201VP2-GT3 through Aetrix?
Please submit a Request for Quotation (RFQ) for CAT6201VP2-GT3 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 CAT6201VP2-GT3 reliable?
The price and inventory of CAT6201VP2-GT3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CAT6201VP2-GT3 is usually 5 days.
3.What payment methods are accepted for CAT6201VP2-GT3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CAT6201VP2-GT3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CAT6201VP2-GT3?
CAT6201VP2-GT3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CAT6201VP2-GT3 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 CAT6201VP2-GT3?
For technical support, including CAT6201VP2-GT3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CAT6201VP2-GT3 requirements.
6.How does Aetrix verify that CAT6201VP2-GT3 is sourced from the original manufacturer or authorized distributors?
All CAT6201VP2-GT3 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 CAT6201VP2-GT3 meets industry standards.
7.What is the process for return or replacement of CAT6201VP2-GT3?
All CAT6201VP2-GT3 units undergo pre-shipment inspection (PSI). If there is an issue with CAT6201VP2-GT3, 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 CAT6201VP2-GT3 part is unused and in its original packaging.
Return procedure for CAT6201VP2-GT3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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