Overview
The NCP3064MNTXG is a monolithic DC-DC switching regulator IC produced by Onsemi. This device is designed to be a higher frequency upgrade to the popular MC33063A and MC34063A monolithic DC-DC converters. It is optimized for step-up, step-down, and voltage-inverting applications, requiring a minimum number of external components. The NCP3064MNTXG features an internal temperature-compensated reference, comparator, controlled duty cycle oscillator, active current limit circuit, driver, and a high current output switch. It is packaged in an 8-pin VDFN (Very Thin Dual Flat No-Lead) package with an exposed pad, enhancing thermal dissipation and making it suitable for space-constrained designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Part Status | Active | |
| Case Outline | 488AF | |
| Package Type | 8-VDFN Exposed Pad | |
| VCC Min | 3.0 | V |
| VCC Max | 40 | V |
| Output Switch Current | 1.5 | A |
| Output Voltage Range | Adjustable | |
| Switching Frequency | 150 kHz | |
| Reference Voltage | 1.25 V ± 1.5% | |
| Thermal Shutdown Protection | Yes | |
| ON/OFF Pin Logic Input Level High | 2.2 V to 2.4 V | |
| Low Power Standby Mode Current | Typical 100 μA |
Key Features
- Input voltage range from 3.0 V to 40 V
- Logic level shutdown capability
- Low power standby mode, typical 100 μA
- Output switch current up to 1.5 A
- Adjustable output voltage range
- 150 kHz frequency operation
- Precision 1.5% reference voltage
- Internal thermal shutdown protection
- Cycle-by-cycle current limiting
- Compact 8-pin VDFN package with exposed pad for enhanced thermal dissipation
Applications
The NCP3064MNTXG is suitable for a variety of applications, including:
- Step-up, step-down, and voltage-inverting DC-DC converters
- Cost-sensitive consumer products
- Industrial equipment
- Space-constrained designs where thermal management is critical
Q & A
- What is the input voltage range of the NCP3064MNTXG?
The input voltage range is from 3.0 V to 40 V.
- What is the maximum output switch current of the NCP3064MNTXG?
The maximum output switch current is 1.5 A.
- What is the switching frequency of the NCP3064MNTXG?
The switching frequency is typically 150 kHz.
- Does the NCP3064MNTXG have thermal shutdown protection?
Yes, it has internal thermal shutdown protection.
- How does the ON/OFF pin function on the NCP3064MNTXG?
Pulling the ON/OFF pin to a high level turns the device on, while a low level or floating state switches it into a low current consumption mode.
- What is the package type of the NCP3064MNTXG?
The package type is 8-pin VDFN with an exposed pad.
- Is the NCP3064MNTXG RoHS compliant?
Yes, the NCP3064MNTXG is RoHS compliant.
- What is the typical standby current of the NCP3064MNTXG?
The typical standby current is 100 μA.
- Can the output voltage of the NCP3064MNTXG be adjusted?
Yes, the output voltage is adjustable.
- What is the reference voltage accuracy of the NCP3064MNTXG?
The reference voltage accuracy is ±1.5% of 1.25 V.
