Overview
The LM2595S-5.0/NOPB from Texas Instruments is a SIMPLE SWITCHER Power Converter, specifically designed as a 150 kHz, 1A step-down voltage regulator. This monolithic integrated circuit provides all the active functions necessary for a buck switching regulator, making it highly efficient and easy to use. The LM2595S-5.0/NOPB is available in a TO-263 (KTT) package with 5 pins and is suitable for a variety of applications requiring high-efficiency step-down voltage regulation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 5 | V |
| Maximum Input Voltage | 40 | V |
| Maximum Output Current | 1 | A |
| Switching Frequency | 150 kHz | |
| Efficiency | 82% (typical at VIN = 12 V, ILOAD = 1 A) | % |
| Maximum Operating Temperature | 125 °C | °C |
| Package Type | TO-263 (KTT) | |
| Quiescent Current (Standby) | 85 μA (typical) | μA |
Key Features
- Fixed output voltage of 5 V, with other versions available for 3.3 V, 12 V, and adjustable output.
- High efficiency with a typical efficiency of 82% at VIN = 12 V and ILOAD = 1 A.
- Requires only 4 external components for operation.
- Excellent line and load regulation specifications.
- 150 kHz fixed-frequency internal oscillator.
- TTL shutdown capability with low power standby mode.
- Thermal shutdown and current-limit protection.
- Available in TO-220 and TO-263 surface-mount packages.
Applications
- Simple high-efficiency step-down (buck) regulators.
- Efficient pre-regulators for linear regulators.
- On-card switching regulators.
- Positive-to-negative converters.
Q & A
- What is the maximum input voltage for the LM2595S-5.0/NOPB?
The maximum input voltage is 40 V.
- What is the typical efficiency of the LM2595S-5.0/NOPB at full load?
The typical efficiency is 82% at VIN = 12 V and ILOAD = 1 A.
- What is the switching frequency of the LM2595S-5.0/NOPB?
The switching frequency is 150 kHz.
- What are the package options for the LM2595?
The LM2595 is available in TO-220 and TO-263 surface-mount packages.
- Does the LM2595S-5.0/NOPB have thermal protection?
- How many external components are required for the LM2595S-5.0/NOPB to operate?
- What is the quiescent current in standby mode?
The quiescent current in standby mode is typically 85 μA.
- Can the LM2595S-5.0/NOPB be shut down using logic level signals?
- What is the maximum operating temperature for the LM2595S-5.0/NOPB?
The maximum operating temperature is 125 °C.
- What types of applications is the LM2595S-5.0/NOPB suitable for?
