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onsemi NCV890200PDR2G
- Part No.:
- NCV890200PDR2G
- Manufacturer:
- onsemi
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
NCV890200PDR2G.pdf
- Description:
- IC REG BUCK ADJ 2A 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,031
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Product details
Overview
NCV890200PDR2G from onsemi is an AEC-Q100 qualified automotive buck switching regulator with internal N-channel power switch, 2 MHz fixed-frequency operation, 4.5 V to 36 V input range, and 3.3 V output capability at up to 2 A - designed for infotainment and driver information systems requiring low EMI and compact layout.
For engineers reviewing the NCV890200PDR2G datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, validated pin functions, confirmed automotive-grade protection features (load dump to 40 V, thermal shutdown, short-circuit foldback), and real-world design constraints including minimum load requirements and bootstrap capacitor management.
Technical Context
The NCV890200PDR2G employs current-mode control with integrated slope compensation to prevent subharmonic oscillation above 50% duty cycle, using a fixed 2 MHz oscillator that folds back to 500 kHz when VIN exceeds 18.4 V to maintain regulation under high-input conditions. Its transconductance error amplifier (gm = 0.6–1.5 mS) drives external RC compensation on the COMP pin for loop stability tuning.
Operation relies on bootstrap gate drive (BST pin) powered via DRV-regulated voltage (3.3 V ±0.2 V), requiring periodic SW node discharge to sustain CBST charge - hence minimum load thresholds (e.g., 4.2 mA at 13.2 VIN/3.3 VOUT) are enforced. Protection includes cycle-by-cycle peak current limit (2.2 A min), hiccup-mode short-circuit response, and thermal shutdown at 150 °C with 5–20 °C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 36 V - supports full automotive battery range including cold-crank (4.5 V) and load dump (40 V transient tolerance) |
| Switching Frequency | 2 MHz nominal (4.5–18 VIN); folds to 500 kHz above 18.4 VIN - avoids AM band interference and enables small LC filters |
| Output Current | 2 A continuous - limited by 2.2 A cycle-by-cycle peak current threshold and thermal derating above 125 °C |
| Output Voltage Accuracy | ±1.75% over −40 °C to +150 °C - ensures stable 3.3 V/5 V rail regulation in instrument clusters and vision systems |
| Quiescent Current | 3 mA enabled / 5 µA shutdown - meets automotive standby power budgets for always-on modules |
| Enable Input Logic | TTL-compatible EN pin accepts direct battery tie - logic-high >2 V enables; logic-low <0.8 V forces shutdown with ultra-low IqSD |
| Thermal Shutdown | Activates at 150 °C junction temperature with 5–20 °C hysteresis - protects against sustained overload or poor heatsinking |
Pinout & Package
NCV890200PDR2G is housed in an SOIC-8 EP (Case 751AC) package with exposed pad thermally and electrically connected to GND. The 8-pin layout supports high-current switching paths while minimizing parasitic inductance through optimized power pin placement (VIN, SW, BST, GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VIN | Main input supply connection | Accepts 4.5–36 V battery input; requires local ceramic CIN for high-frequency decoupling and EMI suppression |
| 2 - DRV | Internal gate driver supply output | Provides regulated 3.3 V to charge external bootstrap capacitor (CDRV); UVLO thresholds ensure safe gate drive startup |
| 3 - GND | Power and signal ground reference | Must connect exposed pad directly to PCB ground plane for thermal dissipation and noise immunity |
| 4 - EN | Enable/disable control input | TTL-compatible; direct battery tie possible - grounding disables switching and reduces Iq to 5 µA |
| 5 - COMP | Error amplifier output | External RCOMP/CCOMP network sets loop bandwidth and phase margin; 1.4 MΩ output resistance confirmed |
| 6 - FB | Feedback voltage sensing input | Monitors resistive divider output; 0.8 V reference enables adjustable outputs down to 0.8 V; precharge detection prevents startup into shorted loads |
| 7 - BST | Bootstrap supply input | Connects to external bootstrap capacitor (CBST) - enables high-side N-FET gate drive above VIN for low RDS(on) |
| 8 - SW | Power switch node | Connects to inductor and freewheeling diode cathode; high dv/dt node requiring tight layout and Kelvin grounding |
Key Features
| Feature | Design Value |
|---|---|
| Integrated N-channel power switch | 650 mΩ typical RDS(on) at TJ = 25 °C - eliminates external MOSFET and simplifies BOM for space-constrained automotive modules |
| 2 MHz free-running oscillator | Enables use of 2.2–4.7 µH inductors and all-ceramic output filters - reduces solution size by >40% vs. 500 kHz regulators |
| Load dump survival | Withstands 40 V transients per ISO 7637-2 - no external TVS required for basic compliance in 12 V systems |
| Frequency foldback protection | Automatically reduces switching frequency to 500 kHz above 18.4 VIN - maintains regulation during alternator overvoltage without sacrificing efficiency |
| 1.4 ms internal soft-start | Prevents inrush current and output overshoot during power-up - eliminates need for external soft-start circuitry |
| Output precharge detection | Monitors FB pin voltage (>20 mV threshold) before enabling - blocks startup if output is precharged, preventing reverse current flow into SW node |
Applications
| Infotainment Head Unit Power | ADAS Camera Module Supply |
|---|---|
|
Use Scenario: Powers SoC, display interface, and audio codec in automotive head units with strict EMI limits and space constraints. IC Role / Device Role / Timing Role: Primary 3.3 V/2 A buck regulator converting 12 V battery to low-noise digital rail. Use Value: 2 MHz switching avoids AM band interference; all-ceramic output filter eliminates electrolytic capacitors for extended lifetime at 105 °C. |
Use Scenario: Supplies image sensor and ISP in rear-view or surround-view cameras operating in engine bay or bumper locations. IC Role / Device Role / Timing Role: High-reliability 5 V/1.5 A converter with load dump protection and thermal shutdown. Use Value: AEC-Q100 Grade 1 qualification (−40 °C to +125 °C ambient) and 40 V transient tolerance ensure robustness in harsh under-hood environments. |
| Digital Instrument Cluster Core Rail | Telematics Control Unit (TCU) Sub-Regulator |
|
Use Scenario: Generates stable 3.3 V core voltage for MCU and graphics processor in LCD-based instrument clusters. IC Role / Device Role / Timing Role: Secondary buck regulator downstream of main DC-DC, providing low-noise, fast-transient response power. Use Value: ±1.75% output accuracy and 1.4 ms soft-start ensure deterministic boot timing and eliminate display flicker during ignition cycles. |
Use Scenario: Powers LTE modem and GNSS receiver in cellular-connected TCUs requiring ultra-low quiescent current in sleep mode. IC Role / Device Role / Timing Role: Always-on 3.3 V regulator with 5 µA shutdown current and battery-direct EN pin. Use Value: Direct battery enable allows wake-on-RF without auxiliary LDO; 3 mA active Iq extends battery life during parking mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM61480QRTWRQ1 | 3.5 V–36 V input, 2.1 MHz, 8 A output; requires external MOSFETs; higher Iq (15 µA shutdown) | Better suited for higher-current ADAS domain controllers; lacks integrated power switch | Select when >2 A output or discrete FET control is required; not drop-in due to different pinout and external FET biasing |
| MPQ4420AGL-AEC1-Z | 3.3 V–36 V input, 2.2 MHz, 2 A; integrated switch; ±2% VOUT accuracy; no frequency foldback | Lower accuracy and no VIN foldback limits high-voltage transient handling in 24 V commercial vehicles | Consider for cost-sensitive non-AEC-Q100 designs where 40 V load dump immunity is not mandated |
Compared with LM61480QRTWRQ1 and MPQ4420AGL-AEC1-Z, the NCV890200PDR2G offers tighter output accuracy (±1.75%), integrated frequency foldback for 24 V system compatibility, and lower active quiescent current (3 mA), making it optimal for compact, EMI-sensitive automotive subsystems requiring guaranteed AEC-Q100 Grade 1 performance.
Availability
NCV890200PDR2G is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and digital instrument clusters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for NCV890200PDR2G 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 (Nasdaq: ON) is a global semiconductor leader delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCV890200PDR2G belongs to onsemi's automotive power management portfolio, engineered specifically for battery-connected systems demanding AEC-Q100 qualification, load dump resilience, and minimal EMI in space-constrained driver information domains.
FAQ
What is the maximum input voltage the NCV890200PDR2G can withstand during load dump events?
The NCV890200PDR2G is rated to withstand 40 V transients per ISO 7637-2, confirmed in the Absolute Maximum Ratings table (VIN to SW = 40 V). This allows direct connection to automotive 12 V battery rails without external TVS diodes in most standard vehicle architectures. The device remains functional during these events and resumes regulation once voltage returns within normal operating range.
Does the NCV890200PDR2G require an external bootstrap capacitor, and what is its typical value?
Yes, the NCV890200PDR2G requires an external bootstrap capacitor (CBST) connected between BST and SW pins. A typical value is 0.1 µF X7R ceramic, placed as close as possible to the IC. This capacitor sustains gate drive voltage for the internal N-channel switch during high-duty-cycle operation and must be periodically recharged via the DRV-regulated supply and SW node discharge.
What is the minimum output load required for stable operation of the NCV890200PDR2G at 3.3 V output and 13.2 V input?
At 3.3 V output and 13.2 V input, the NCV890200PDR2G requires a minimum load of 4.2 mA to maintain stable regulation, as specified in Figure 27 of the datasheet. This requirement stems from the need to periodically discharge the SW node and recharge the bootstrap capacitor; light-load skip-mode operation ceases below this threshold, causing dropout or shutdown.
How does the NCV890200PDR2G implement short-circuit protection?
The NCV890200PDR2G uses dual-stage short-circuit protection: first, frequency foldback reduces switching frequency from 2 MHz to 500 kHz to limit peak current; second, if current remains excessive, it enters hiccup mode with ~32 kHz burst frequency. Both stages are confirmed in Electrical Characteristics (FSWAFHV = 200–300 kHz, FSWHIC = 24–40 kHz) and protect power components without latch-off.
Can the NCV890200PDR2G be used to generate an adjustable output voltage below 3.3 V?
Yes, the NCV890200PDR2G supports adjustable outputs down to 0.8 V using the FB pin and external resistor divider. The internal reference is 0.8 V ±1.75%, enabling precise setting of 1.2 V, 1.8 V, or 2.5 V rails. Designers must recalculate RFB1/RFB2 values per the formula VOUT = 0.8 V × (1 + RFB1/RFB2) and verify minimum load requirements scale with output voltage.
NCV890200PDR2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 34V
- Current - Output:
- 2A
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC-EP
NCV890200PDR2G FAQ
1.How can I place an order for NCV890200PDR2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV890200PDR2G 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 NCV890200PDR2G reliable?
The price and inventory of NCV890200PDR2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV890200PDR2G is usually 5 days.
3.What payment methods are accepted for NCV890200PDR2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV890200PDR2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV890200PDR2G?
NCV890200PDR2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV890200PDR2G 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 NCV890200PDR2G?
For technical support, including NCV890200PDR2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV890200PDR2G requirements.
6.How does Aetrix verify that NCV890200PDR2G is sourced from the original manufacturer or authorized distributors?
All NCV890200PDR2G 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 NCV890200PDR2G meets industry standards.
7.What is the process for return or replacement of NCV890200PDR2G?
All NCV890200PDR2G units undergo pre-shipment inspection (PSI). If there is an issue with NCV890200PDR2G, 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 NCV890200PDR2G part is unused and in its original packaging.
Return procedure for NCV890200PDR2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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