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onsemi NCV5500DT15RKG
- Part No.:
- NCV5500DT15RKG
- Manufacturer:
- onsemi
- Package:
- TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Datasheet:
-
NCV5500DT15RKG.pdf
- Description:
- IC REG LINEAR 1.5V 500MA DPAK-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,694
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Product details
Overview
NCV5500DT15RKG from onsemi is an automotive-grade fixed-output LDO voltage regulator delivering 1.5 V at up to 500 mA, with ±2.9% output voltage accuracy, 230 mV dropout at full load, and AEC-Q100 qualification for operation from −40°C to +125°C ambient. It integrates enable/shutdown control, reverse bias protection, thermal shutdown, and short-circuit current limiting - deployed in engine control units, ADAS power rails, and infotainment subsystems.
For engineers reviewing the NCV5500DT15RKG datasheet, pinout, applications, or equivalent options, key selection criteria include its DPAK-5 automotive package, guaranteed 1.5 V output stability under transient load, low ground current (≤20 mA at 500 mA), and compatibility with low-cost ceramic capacitors without external compensation.
Technical Context
The NCV5500DT15RKG uses an internal PNP pass transistor architecture to achieve low dropout while maintaining regulation across wide input ranges (2.5 V to 16 V). Its error amplifier compares a bandgap reference to the regulated 1.5 V output via internal feedback, enabling stable operation without external resistors.
Enable functionality is implemented as a logic-level input (VEN(on) ≥ 2.0 V, VEN(off) ≤ 0.4 V) that controls base drive to the PNP pass element. During shutdown, an active shunt path discharges the output capacitor with ~500 µA sink current, preventing residual voltage on unloaded loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5 V ±2.9% over −40°C to +125°C - ensures reliable core voltage for automotive MCUs and sensors. |
| Max Output Current | 500 mA continuous - supports high-current digital loads like CAN transceivers and display drivers. |
| Dropout Voltage | 230 mV at 500 mA - enables operation from 1.73 V input, critical for cold-crank battery conditions. |
| Ground Current | 20 mA at 500 mA load - minimizes system power loss and simplifies thermal design in space-constrained modules. |
| Input Voltage Range | 2.5 V to 16 V - accommodates 12 V automotive battery variations including load dump transients. |
| Ripple Rejection | 75 dB at 120 Hz - suppresses switching noise from upstream DC/DC converters in multi-rail systems. |
| Thermal Shutdown | 150°C junction temperature - protects against sustained overload or poor heatsinking in sealed enclosures. |
Pinout & Package
DPAK-5 (Case 175AA) package with exposed tab for thermal dissipation; center lead crop configuration; Pb-free; RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - EN | Enable input | Logic-high (>2.0 V) enables regulation; logic-low (<0.4 V) disables output and activates active discharge path. |
| 2 - Vin | Positive input supply | Accepts 2.5–16 V DC; reverse bias protection active when Vout − Vin > 7 V. |
| 3 - GND (Tab) | Ground reference and thermal path | Internally connected to exposed metal tab; must be soldered to PCB copper pour for thermal performance. |
| 4 - Vout | Regulated output | Delivers stable 1.5 V ±2.9%; requires ≥4.7 µF ceramic output capacitor for stability. |
| 5 - NC/ADJ | No connection (fixed version) | Not bonded internally; left unconnected - no external components required for 1.5 V operation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualified | Qualified for automotive Grade 1 (−40°C to +125°C) with PPAP capability - meets OEM reliability requirements. |
| Stable with ceramic capacitors | Supports 1–10 µF X5R/X7R ceramics without ESR requirements - reduces BOM cost and board area vs. tantalum. |
| Active output discharge | ~500 µA sink current during shutdown - prevents floating outputs and ensures deterministic power-down sequencing. |
| Reverse bias protection | Prevents current flow from Vout to Vin when Vout − Vin > 7 V - avoids backfeeding in multi-supply systems. |
| Short-circuit & thermal protection | Current limit triggers at 500–900 mA; thermal shutdown at 150°C - enables robust fault recovery without external circuitry. |
Applications
| Engine Control Unit (ECU) Core Power | ADAS Camera Module Bias Supply |
|---|---|
Use Scenario: Powers 32-bit automotive MCU cores requiring tightly regulated 1.5 V at up to 450 mA during cold-crank (input drops to 6.5 V). IC Role / Device Role / Timing Role: Primary post-regulator after buck converter; provides low-noise, low-dropout bias for CPU I/O and memory interfaces. Use Value: 230 mV dropout ensures regulation down to 1.73 V input, maintaining functional safety compliance during battery sag events. |
Use Scenario: Supplies image sensor analog front-end and ISP core in 77 GHz radar camera fusion modules. IC Role / Device Role / Timing Role: Low-noise LDO for precision analog blocks; rejects ripple from adjacent SMPS used for digital logic rails. Use Value: 75 dB ripple rejection at 120 Hz suppresses switching artifacts that would otherwise degrade SNR in pixel data paths. |
| Infotainment SoC I/O Rail | Automotive Gateway CAN Transceiver Bias |
Use Scenario: Delivers 1.5 V to DDR3L I/O buffers in head-unit application processors operating across extended temperature. IC Role / Device Role / Timing Role: Point-of-load regulator placed near SoC; handles fast load transients from burst memory access. Use Value: 20 mA ground current at full load minimizes power loss in thermally isolated plastic housings. |
Use Scenario: Powers isolated CAN FD transceiver PHY in vehicle gateway ECUs where EMI immunity and fail-safe behavior are critical. IC Role / Device Role / Timing Role: Dedicated low-noise bias source decoupled from noisy digital domains; enables clean bus signaling. Use Value: Active discharge during sleep mode ensures CAN bus enters recessive state reliably, preventing false wake-ups. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8170DS150T2G | Lower max current (300 mA); 170 mV dropout at 300 mA; SOIC-8 package only. | Suitable for lower-power microcontrollers but cannot replace NCV5500DT15RKG in 500 mA loads. | Select if board space allows SOIC-8 and load current stays below 300 mA. |
| TLV73315PDBVR | Higher accuracy (±1%), lower quiescent current (60 µA), but not AEC-Q100 qualified; SOT-23-5 package. | Limited to industrial/consumer use; lacks automotive qualification and thermal robustness. | Choose only for non-automotive designs where ultra-low IQ outweighs qualification requirements. |
Compared with NCV5500DT15RKG, NCV8170DS150T2G trades current capability for smaller footprint and lower dropout at reduced load, while TLV73315PDBVR offers tighter accuracy and lower IQ but sacrifices automotive qualification and thermal margin - making NCV5500DT15RKG the sole option meeting full AEC-Q100 Grade 1 and 500 mA requirements in DPAK-5.
Availability
NCV5500DT15RKG is available at Aetrix Electronics and suitable for automotive ECU power management, ADAS sensor biasing, and infotainment SoC I/O regulation requiring stable component supply across extended temperature and long product lifecycles.
Supply support for NCV5500DT15RKG 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, and sensing solutions for automotive, industrial, and cloud infrastructure markets.
The NCV5500 series belongs to onsemi's automotive-qualified linear regulator product line, designed specifically for demanding under-hood and cabin applications requiring AEC-Q100 compliance, extended temperature operation, and robust fault protection.
FAQ
What is the maximum input voltage rating for NCV5500DT15RKG?
The NCV5500DT15RKG supports an absolute maximum input voltage of +16 V, with recommended operating range from 2.5 V (or Vout + VDO) up to 16 V. This accommodates automotive battery transients including load dump events, provided external clamping or filtering is applied per system-level requirements. The device also features reverse bias protection when Vout − Vin exceeds 7 V.
Does NCV5500DT15RKG require external resistors to set the output voltage?
No. The NCV5500DT15RKG is a fixed-output variant with internal feedback network configured for 1.5 V regulation. Pin 5 (NC/ADJ) is not connected internally and must remain unconnected - no external resistors, capacitors, or compensation components are needed beyond the recommended 4.7 µF ceramic output capacitor.
How does the enable pin function on NCV5500DT15RKG?
The EN pin (Pin 1) provides logic-level on/off control: applying ≥2.0 V enables regulation, while ≤0.4 V disables output and activates an internal ~500 µA discharge path from Vout to GND. If unused, EN must be tied to Vin to ensure permanent enable - floating EN is not permitted per datasheet guidelines.
Is NCV5500DT15RKG compatible with ceramic output capacitors?
Yes. The NCV5500DT15RKG is explicitly characterized and stabilized for use with low-ESR ceramic capacitors ranging from 1 µF to 10 µF (X5R/X7R dielectrics). Unlike older LDOs, it imposes no minimum ESR requirement, eliminating need for costly tantalum or aluminum electrolytic capacitors in automotive designs.
What thermal performance can be expected from NCV5500DT15RKG in DPAK-5 package?
In DPAK-5 (Case 175AA) with standard 650 mm² copper pour, the NCV5500DT15RKG achieves RJA = 60°C/W and RJC = 5.2°C/W. At 500 mA output into 1.5 V with 12 V input, power dissipation is ~5.25 W - requiring thermal design to maintain TJ < 150°C. Derating is necessary above 85°C ambient unless heatsinking is added.
NCV5500DT15RKG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 16V
- Voltage - Output (Min/Fixed):
- 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.073V @ 500mA
- Current - Output:
- 500mA
- Current - Quiescent (Iq):
- 500 µA
- Current - Supply (Max):
- 20 mA
- PSRR:
- 75dB ~ 70dB (120hZ ~ 10kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK-5
NCV5500DT15RKG FAQ
1.How can I place an order for NCV5500DT15RKG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV5500DT15RKG 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 NCV5500DT15RKG reliable?
The price and inventory of NCV5500DT15RKG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV5500DT15RKG is usually 5 days.
3.What payment methods are accepted for NCV5500DT15RKG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV5500DT15RKG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV5500DT15RKG?
NCV5500DT15RKG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV5500DT15RKG 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 NCV5500DT15RKG?
For technical support, including NCV5500DT15RKG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV5500DT15RKG requirements.
6.How does Aetrix verify that NCV5500DT15RKG is sourced from the original manufacturer or authorized distributors?
All NCV5500DT15RKG 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 NCV5500DT15RKG meets industry standards.
7.What is the process for return or replacement of NCV5500DT15RKG?
All NCV5500DT15RKG units undergo pre-shipment inspection (PSI). If there is an issue with NCV5500DT15RKG, 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 NCV5500DT15RKG part is unused and in its original packaging.
Return procedure for NCV5500DT15RKG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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