LM2597HVM-3.3/NOPB Part Information
Details for LM2597HVM-3.3/NOPB by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
Part Description
The LM2597xx series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 0.5-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5 V, 12 V, and an adjustable output version, and are packaged in an 8-pin PDIP and an 8-pin surface-mount package. This series of switching regulators is similar to the LM2594 series, with additional supervisory and performance features added. Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation, improved line and load specifications, fixed-frequency oscillator, Shutdown/Soft-start, error flag delay, and error flag output. The LM2597xx series operates at a switching frequency of 150-kHz, thus allowing smaller-sized filter components than what would be required with lower-frequency switching regulators. Because of its high efficiency, the copper traces on the printedcircuit board are normally the only heat sinking required.
Part Downloads
Download PCB Footprint from Ultra Librarian
Part Features
- 150-kHz Fixed-Frequency Internal Oscillator
- 3.3-V, 5-V, 12-V, and Adjustable Output Versions
- Adjustable Version Output Voltage Range: 1.2 V to 37 V (57 V for HV Version) u00b14% Maximum Over Line and Load Conditions
- Available in 8-Pin Surface-Mount and 8-Pin PDIP Packages
- Bias Supply Pin (VBS) for Internal Circuitry Improves Efficiency at High Input Voltages
- Error Output Delay
- High Efficiency
- Input Voltage Range Up to 60 V
- Low Power Standby Mode, IQ, Typically 85 u03bcA
- Out of Regulation Error Flag
- Shutdown/Soft-Start
- Specified 0.5-A Output Current
- Thermal Shutdown and Current-Limit Protection
- Uses Readily Available Standard Inductors
Part Specifications
| Topology | Buck (Step Down) |
| Input Voltage Min | 4.5V |
| Input Voltage Max | 60V |
| DC / DC Converter IC Case | SOIC |
| No. of Pins | 8Pins |
| Output Current | 500mA |
| Output Voltage Nom. | 3.3V |
| Switching Frequency | 173kHz |
| Operating Temperature Max | 125°C |
| Product Range | - |
| Automotive Qualification Standard | - |
| RoHS Phthalates Compliant | Yes |
| MSL | MSL 1 - Unlimited |
| SVHC | No SVHC (27-Jun-2018) |
| Accuracy % | 4% |
| Base Number | 2597 |
| Frequency | 150kHz |
| No. of Outputs | 1Outputs |
| Operating Temperature Min | -40°C |
| Operating Temperature Range | -40°C to +125°C |
| Operating Voltage Tolerance + | 4% |
| Output Current Max | 0.5A |
| Output Voltage | 3.3V |
| Primary Input Voltage | 12V |
| Supply Voltage Max | 60V |
| Supply Voltage Min | 4.5V |
| Termination Type | Surface Mount Device |
| Voltage Regulator Type | Step Down (Buck) |
Alternative Part Descriptions
- SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator, with Features | Texas Instruments