Overview
The LM2675MX-ADJ/NAK2 is a high-efficiency step-down (buck) switching regulator produced by Texas Instruments (formerly National Semiconductor). This device is part of the SIMPLE SWITCHER® family of power converters and is designed to provide all the active functions necessary for a step-down switching regulator. It is capable of driving a 1-A load current with excellent line and load regulation. The LM2675 series is built using a LMDMOS process, ensuring high current capability and highly efficient operation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | Adjustable (1.21 V to 37 V) | V |
| Output Voltage Tolerance | ±1.5% | % |
| Output Load Current | 1 A | A |
| Input Voltage Range | 8 V to 40 V | V |
| Switching Frequency | 260 kHz | kHz |
| Efficiency | Up to 96% | % |
| Package Types | 8-Pin SOIC, 8-Pin PDIP, 16-Pin WSON | - |
| Operating Temperature Range | -40°C to 125°C | °C |
| Thermal Shutdown and Current Limit Protection | Yes | - |
| TTL Shutdown Capability | Yes | - |
| Standby Quiescent Current | 50 μA to 100 μA | μA |
Key Features
- High efficiency up to 96%
- Available in 8-Pin SOIC, 8-Pin PDIP, and 16-Pin WSON packages
- Requires only 5 external components
- Adjustable output voltage range from 1.21 V to 37 V
- Fixed output voltages of 3.3 V, 5 V, and 12 V also available
- Wide input voltage range: 8 V to 40 V
- 260-kHz fixed frequency internal oscillator
- TTL shutdown capability and low-power standby mode
- Thermal shutdown and current limit protection
Applications
- Simple high-efficiency step-down (buck) regulators
- Efficient pre-regulators for linear regulators
- Positive-to-negative converters
- General-purpose DC-DC conversion in various electronic systems
Q & A
- What is the maximum output current of the LM2675MX-ADJ/NAK2?
The maximum output current is 1 A.
- What are the available output voltage options for the LM2675MX-ADJ/NAK2?
The device offers fixed output voltages of 3.3 V, 5 V, and 12 V, as well as an adjustable output voltage range from 1.21 V to 37 V.
- What is the input voltage range for the LM2675MX-ADJ/NAK2?
The input voltage range is from 8 V to 40 V.
- What is the switching frequency of the LM2675MX-ADJ/NAK2?
The switching frequency is 260 kHz.
- Does the LM2675MX-ADJ/NAK2 have thermal shutdown and current limit protection?
Yes, it includes thermal shutdown and current limit protection.
- What are the package options for the LM2675MX-ADJ/NAK2?
The device is available in 8-Pin SOIC, 8-Pin PDIP, and 16-Pin WSON packages.
- How many external components are required for a complete design using the LM2675MX-ADJ/NAK2?
A minimum of 5 external components are required.
- What is the efficiency of the LM2675MX-ADJ/NAK2?
The efficiency is up to 96%.
- Does the LM2675MX-ADJ/NAK2 support TTL shutdown capability?
Yes, it supports TTL shutdown capability and has a low-power standby mode.
- What is the operating temperature range for the LM2675MX-ADJ/NAK2?
The operating temperature range is from -40°C to 125°C.
