My Inquiry
My Account
onsemi NCV3064PG
- Part No.:
- NCV3064PG
- Manufacturer:
- onsemi
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
NCV3064PG.pdf
- Description:
- IC REG BUCK BOOST ADJ 1.5A 8PDIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,107
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NCV3064PG from onsemi is an automotive-grade monolithic switching regulator IC designed for step-down, step-up, and voltage-inverting DC-DC converter applications. It integrates a 1.5 A Darlington output switch, 150 kHz oscillator, precision 1.25 V reference (±1.5%), cycle-by-cycle current limiting, and logic-level ON/OFF shutdown control. It operates from 3.0 V to 40 V input and supports high-power LED lighting and battery charger systems.
For engineers reviewing the NCV3064PG datasheet, pinout, applications, or equivalent options, key selection considerations include its −40 °C to +125 °C operating junction temperature range, thermal shutdown at 160 °C with 10 °C hysteresis, 100 µA standby current in OFF mode, and SOIC-8 package compatibility with standard PCB layouts.
Technical Context
The NCV3064PG implements a hysteretic, gated-oscillator DC-DC controller architecture with internal comparator, temperature-compensated 1.25 V reference, and active current-limit circuitry. Its oscillator frequency (110–190 kHz) is set by an external timing capacitor (CT), and output switching is controlled via a Darlington transistor pair with collector-emitter saturation voltage ≤1.3 V at 1.0 A.
Current limiting is achieved via peak-sense voltage monitoring (VIPK = 165–235 mV) at the Ipk pin, enabling cycle-by-cycle protection. The ON/OFF pin provides TTL-compatible logic control (VIH ≥2.4 V, VIL ≤0.8 V) to disable switching and reduce supply current to ≤100 µA, while internal thermal shutdown activates at TJ = 160 °C with automatic recovery at ~150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.0 V to 40 V - supports wide-input industrial and automotive battery systems without pre-regulation |
| Output Switch Current | 1.5 A - enables direct drive of medium-power converters without external MOSFETs in many designs |
| Oscillator Frequency | 150 kHz typical (110–190 kHz) - balances efficiency, EMI, and passive component size for cost-sensitive applications |
| Reference Voltage | 1.25 V ±1.5% - ensures tight output regulation across temperature and line variations |
| Standby Current | 100 µA max - minimizes quiescent drain in always-on automotive modules during sleep mode |
| Operating Junction Temp | −40 °C to +125 °C - qualified for under-hood and engine-control unit environments per AEC-Q100 requirements |
| Thermal Shutdown Threshold | 160 °C with 10 °C hysteresis - prevents catastrophic failure while allowing safe auto-recovery after transient overload |
Pinout & Package
NCV3064PG is packaged in Pb-free SOIC-8 (Case 751), with exposed pad not present. Pin 4 is GND and serves as the thermal and electrical reference for all internal circuits.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SWC) | Switch Collector | Collector of internal Darlington transistor; connects to inductor/rectifier node in buck/boost/inverting topologies |
| 2 (SWE) | Switch Emitter | Emiter of internal Darlington transistor; ties to GND in buck, to input in boost, or to output in inverting configurations |
| 3 (CT) | Timing Capacitor | Oscillator timing node; CT value sets switching frequency and controls duty-cycle ratio (typ. 6:1 charge/discharge current) |
| 4 (GND) | Ground | Common return for all internal circuits and external feedback/sense paths; must be low-impedance PCB plane |
| 5 (COMP) | Comparator Inverting Input | Feedback node for output voltage regulation; connected to resistor divider from VOUT to set regulated output |
| 6 (VCC) | Voltage Supply | Primary power input (3–40 V); powers internal bias, oscillator, and gate driver; bypass capacitor required |
| 7 (Ipk) | Peak Current Sense | Monitors voltage drop across external sense resistor (RSC) to trigger cycle-by-cycle current limit at 200 mV threshold |
| 8 (ON/OFF) | Enable/Shutdown Control | Logic-level input: HIGH ≥2.4 V enables operation; LOW ≤0.8 V or floating disables switching and reduces ICC to ≤100 µA |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | NCV prefix indicates AEC-Q100 compliance and enhanced process control for automotive use cases |
| Integrated Darlington switch | 1.5 A rated switch eliminates need for external transistor in many 5–24 V output designs |
| Adjustable output voltage | Regulated via external resistor divider on COMP pin - supports any output from ~1.25 V up to VCC − VSWCE |
| Cycle-by-cycle current limiting | Prevents switch overcurrent during startup, short-circuit, or overload without requiring external protection circuitry |
| Low-power shutdown mode | Reduces total system standby consumption - critical for always-on vehicle modules meeting ISO 16750-2 quiescent current limits |
Applications
| Automotive Body Control Module (BCM) | Industrial 24 V Rail Converter |
|---|---|
Use Scenario: Powering microcontrollers, sensors, and CAN transceivers from a 12 V battery with load dump immunity. IC Role / Device Role / Timing Role: Step-down regulator generating stable 3.3 V or 5 V rail; uses ON/OFF pin for ignition-synchronized enable/disable. Use Value: −40 °C to +125 °C operation and thermal shutdown ensure reliability in under-dash environments; 100 µA shutdown current meets OEM sleep-mode requirements. |
Use Scenario: Converting unregulated 24 V factory supply to isolated 15 V for PLC I/O drivers. IC Role / Device Role / Timing Role: Step-up converter with external diode and inductor; COMP pin configured for precise 15 V regulation. Use Value: 40 V absolute maximum VCC rating tolerates 36 V transients; 1.5 A switch supports >1 W output without heatsink; SOIC-8 simplifies layout in space-constrained DIN-rail enclosures. |
| LED Headlamp Driver | Portable Battery Charger |
Use Scenario: Driving high-brightness white LEDs in automotive headlamps requiring constant-current regulation. IC Role / Device Role / Timing Role: Buck converter with current-sense resistor on SWE pin; ON/OFF pin synchronized to PWM dimming signal. Use Value: Cycle-by-cycle current limiting protects LEDs during thermal runaway; 150 kHz switching avoids audible noise; automotive temp range ensures operation at hood temperatures. |
Use Scenario: Charging single-cell Li-ion batteries from USB or 12 V adapters in portable medical devices. IC Role / Device Role / Timing Role: Inverting converter generating negative bias for op-amp rails or positive output via external PMOS pass element. Use Value: Adjustable output allows precise 4.2 V charging voltage; low 100 µA shutdown extends shelf life; Pb-free SOIC-8 meets RoHS and REACH compliance for medical certifications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar switching regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV3063DR2G | Lower 1.0 A switch current; identical pinout and functional block diagram; same −40 °C to +125 °C rating | Suitable only for <1 W output applications; cannot support 1.5 A peak loads without derating or external FET | Select when cost sensitivity outweighs current demand and thermal margin is sufficient for target load |
| NCP3064DR2G | Commercial-grade version (0 °C to +70 °C); otherwise identical electrical specs, pinout, and SOIC-8 footprint | Not qualified for automotive or extended-temperature industrial use; lacks NCV-specific process controls and test screening | Choose for consumer or non-safety-critical embedded systems where ambient temperature remains below 70 °C |
Compared with NCV3064PG, NCV3063DR2G offers lower cost but reduced current capability, while NCP3064DR2G provides identical performance in non-automotive environments at lower qualification cost - making NCV3064PG the sole choice for AEC-Q100-compliant designs requiring full 1.5 A output.
Availability
NCV3064PG is available at Aetrix Electronics and suitable for automotive body electronics, industrial 24 V power supplies, and portable battery charger designs requiring stable component supply, long-term lifecycle assurance, and automotive-grade traceability.
Supply support for NCV3064PG 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 manufacturer specializing in energy-efficient power management, analog, sensor, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.
The NCV3064PG belongs to the NCP3064 series of monolithic DC-DC switching regulators, engineered specifically for cost-sensitive, high-reliability applications requiring step-down, step-up, or inverting conversion with minimal external components.
FAQ
What is the maximum input voltage rating for the NCV3064PG?
The NCV3064PG has an absolute maximum VCC rating of 42 V, with recommended continuous operation up to 40 V. This allows robust operation in 24 V industrial systems and 12 V automotive applications subject to load dump transients. Exceeding 42 V risks permanent damage to the internal Darlington switch and oscillator circuitry, as confirmed in the Maximum Ratings table on page 3 of the datasheet.
Does the NCV3064PG support voltage-inverting topology?
Yes, the NCV3064PG explicitly supports voltage-inverting configurations, as documented in Figure 24 and the Applications section (page 9). In this mode, the internal Darlington switch operates in common-collector configuration, with SWC tied to input, SWE to output, and GND referenced to the inverted output rail - enabling generation of negative voltages from positive inputs without additional ICs.
What is the purpose of the CT pin on the NCV3064PG?
The CT (Timing Capacitor) pin on the NCV3064PG sets the oscillator frequency and controls the duty-cycle ratio via an external capacitor. A 2.2 nF capacitor yields ~150 kHz operation; values from 1 nF to 20 nF adjust frequency between ~110 kHz and ~190 kHz. The internal 1:6 charge/discharge current ratio fixes maximum duty cycle at ~85.7%, as detailed in the Operating Description section (page 7).
How does the ON/OFF pin function in the NCV3064PG?
The ON/OFF pin on the NCV3064PG provides logic-level shutdown: pulling it to ≥2.4 V (TTL HIGH) enables normal operation, while ≤0.8 V (TTL LOW) or leaving it floating disables switching and reduces supply current to ≤100 µA. This feature enables PWM dimming control in LED drivers and ignition-synchronized power gating in automotive modules, as described in the ON/OFF Feature section (page 4).
Is thermal shutdown active in the NCV3064PG, and what is its threshold?
Yes, the NCV3064PG includes internal thermal shutdown that activates at a junction temperature of 160 °C (typical), with 10 °C hysteresis. When triggered, the output switch is disabled until junction temperature falls to ~150 °C, preventing catastrophic failure during sustained overload or poor heatsinking. This behavior is verified in the Thermal Characteristic table (page 3) and Operating Description (page 8).
NCV3064PG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Function:
- Step-Up, Step-Down
- Output Configuration:
- Positive or Negative
- Topology:
- Buck, Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 1.25V
- Voltage - Output (Max):
- 40V
- Current - Output:
- 1.5A (Switch)
- Frequency - Switching:
- 150kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
NCV3064PG FAQ
1.How can I place an order for NCV3064PG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV3064PG 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 NCV3064PG reliable?
The price and inventory of NCV3064PG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV3064PG is usually 5 days.
3.What payment methods are accepted for NCV3064PG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV3064PG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV3064PG?
NCV3064PG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV3064PG 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 NCV3064PG?
For technical support, including NCV3064PG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV3064PG requirements.
6.How does Aetrix verify that NCV3064PG is sourced from the original manufacturer or authorized distributors?
All NCV3064PG 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 NCV3064PG meets industry standards.
7.What is the process for return or replacement of NCV3064PG?
All NCV3064PG units undergo pre-shipment inspection (PSI). If there is an issue with NCV3064PG, 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 NCV3064PG part is unused and in its original packaging.
Return procedure for NCV3064PG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NCV3064PG Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
