SNVS084C December 2001 – July 2016 LM2590HV
PRODUCTION DATA.
- 1 Features
- 2 Applications
- 3 Description
- 4 Revision History
- 5 Pin Configuration and Functions
-
6 Specifications
- 6.1 Absolute Maximum Ratings
- 6.2 ESD Ratings
- 6.3 Recommended Operating Conditions
- 6.4 Thermal Information
- 6.5 Electrical Characteristics
- 6.6 Electrical Characteristics - 3.3-V Version
- 6.7 Electrical Characteristics - 5-V Version
- 6.8 Electrical Characteristics - Adjustable Version
- 6.9 Typical Characteristics
- 7 Parameter Measurement Information
- 8 Detailed Description
- 9 Application and Implementation
- 10Power Supply Recommendations
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
封裝選項
機械數據 (封裝 | 引腳)
散熱焊盤機械數據 (封裝 | 引腳)
- KTW|7
訂購信息
1 Features
- 3.3-V, 5-V, and Adjustable Output Versions
- Adjustable Version Output Voltage Range, 1.2 V to 57 V ±4% Max Over Line and Load Conditions
- Ensured 1-A Output Load Current
- Available in 7-Pin TO-220 and TO-263 (Surface-Mount) Package
- Input Voltage Range Up To 60 V
- 150-kHz Fixed Frequency Internal Oscillator
- Shutdown and Soft-start
- Out Of Regulation Error Flag
- Error Flag Delay
- Low Power Standby Mode, IQ: 90 µA (Typical)
- High Efficiency
- Thermal Shutdown And Current Limit Protection
2 Applications
- Simple High-Efficiency Step-Down (Buck) Regulators
- Efficient Preregulator For Linear Regulators
- On-Card Switching Regulators
- Positive-To-Negative Converters
3 Description
The LM2590HV series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 1-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3-V, 5-V, and an adjustable output version.
This series of switching regulators is similar to the LM2591HV with additional supervisory and control features.
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, output error flag and flag delay.
The LM2590HV operates at a switching frequency of 150 kHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Available in a standard 7-pin TO-220 package with several different lead bend options, and a 7-pin TO-263 surface-mount package.
Other features include an ensured ±4% tolerance on output voltage under all conditions of input voltage and output load conditions, and ±15% on the oscillator frequency. External shutdown is included, featuring 90-µA standby current (typical). Self protection features include a two stage current limit for the output switch and an over temperature shutdown for complete protection under fault conditions.
Device Information(1)
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| LM2590HV | TO-220 (7) | 14.99 mm × 10.16 mm |
| TO-263 (7) | 10.10 mm × 8.89 mm |
- For all available packages, see the orderable addendum at the end of the data sheet.
Typical Application (Fixed Output Voltage Versions)
