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Details for LM2597N-ADJ/NOPB by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
SWITCHING REG 0.5A ADJ 2597 DIP8
LM2597N-ADJ/NOPB image

LM2597N-ADJ/NOPB by Texas Instruments

SWITCHING REG 0.5A ADJ 2597 DIP8
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 Information
LM2597N-ADJ/NOPB image
RoHS Compliant
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.
Specifications
Topology:
Buck (Step Down)
Input Voltage Min:
4.5V
Input Voltage Max:
40V
No. of Outputs:
1Outputs
DC / DC Converter IC Case:
DIP
No. of Pins:
8Pins
Output Current:
500mA
Output Voltage Min:
1.2V
Output Voltage Max:
37V
Switching Frequency:
173kHz
Operating Temperature Max:
125°C
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (27-Jun-2018)
Accuracy %:
4%
Adjustable Output Voltage Min:
1.285V
Base Number:
2597
Frequency:
150kHz
IC Generic Number:
2597
Operating Temperature Min:
-40°C
Operating Temperature Range:
-40°C to +125°C
Output Current Max:
0.5A
Output Voltage:
37V
Power Supply IC Type:
Up/Down switching regulator
Primary Input Voltage:
40V
Supply Voltage Min:
4.5V
Voltage Regulator Type:
Switching Step Down (Buck) Inverting
Alternate Descriptions
Conv DC-DC Single Inv/Step Down 4.5V to 40V 8-Pin PDIP Rail Avnet America
Conv DC-DC Single Inv/Step Down 4.5V to 40V 8-Pin PDIP Rail Avnet Europe