Overview
The NCV4276B, specifically the NCV4276BDT33RKG model, is a 400 mA output current integrated low dropout regulator designed for use in harsh automotive environments. This device is part of the NCV4276B family offered by onsemi. It is available in fixed voltage versions (3.3 V and 5.0 V) and an adjustable voltage version. The regulator features a wide operating temperature range and high input voltage tolerance, making it suitable for various automotive and industrial applications.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (3.3 V Version) | VQ | 3.234 | 3.3 | 3.366 | V |
| Output Current | IQ | - | - | 400 | mA |
| Dropout Voltage (5.0 V Version) | VDR | - | - | 500 | mV |
| Input Voltage Operating Range | VI | 4.5 | - | 40 | V |
| Junction Temperature | TJ | -40 | - | 150 | °C |
| Thermal Shutdown Temperature | TSD | 150 | - | 210 | °C |
| Input Peak Transient Voltage | VI | - | - | 45 | V |
| Reverse Input Voltage | VI | -42 | - | - | V |
Key Features
- 3.3 V, 5.0 V, and Adjustable Voltage Version (from 2.5 V to 20 V) with ±2% output voltage accuracy
- 400 mA Output Current
- 500 mV (max) Dropout Voltage (5.0 V Output)
- Inhibit Input for control of the output voltage state
- Very Low Current Consumption
- Fault Protection:
- +45 V Peak Transient Voltage
- -42 V Reverse Voltage
- Short Circuit
- Thermal Overload
- NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements
- Pb-Free Devices
Applications
The NCV4276B is designed for use in harsh automotive environments and other applications requiring robust voltage regulation. It is suitable for various automotive systems, industrial control systems, and any application where a stable, low-dropout voltage is necessary.
- Automotive Systems
- Industrial Control Systems
- Power Supplies for Electronic Devices
- Embedded Systems
Q & A
- What is the maximum output current of the NCV4276B?
The maximum output current of the NCV4276B is 400 mA.
- What are the available output voltage versions for the NCV4276B?
The NCV4276B is available in 3.3 V, 5.0 V, and adjustable voltage versions (from 2.5 V to 20 V).
- What is the dropout voltage for the 5.0 V version of the NCV4276B?
The dropout voltage for the 5.0 V version is up to 500 mV.
- Does the NCV4276B have thermal protection?
- What is the input voltage operating range for the NCV4276B?
The input voltage operating range is from 4.5 V to 40 V.
- Is the NCV4276B Pb-Free?
- What kind of fault protection does the NCV4276B offer?
The NCV4276B offers protection against peak transient voltage, reverse voltage, short circuit, and thermal overload.
- How is the output voltage controlled in the adjustable version of the NCV4276B?
The output voltage in the adjustable version is controlled using an external voltage divider connected to the VA pin.
- What is the quiescent current consumption of the NCV4276B?
The quiescent current consumption varies but is typically in the range of 10 to 35 mA depending on the output current.
- What are the package options for the NCV4276B?
The NCV4276B is available in DPAK and D2PAK surface mount packages.
