LM2594M-3.3 Part Information

Details for LM2594M-3.3 by Texas Instruments

Electronic & Electrical Components > Semiconductors - ICs > Power Management

Part Description

The LM2594xx 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 a 8-pin PDIP and a 8pin surface-mount SOIC package. Requiring a minimum number of external components, these regulators are simple to use and feature internal frequency compensation, a fixedfrequency oscillator, and improved line and load regulation specifications. The LM2594xx series operates at a switching frequency of 150-kHz, thus allowing smaller-sized filter components than what would be needed with lower-frequency switching regulators. Because of its high efficiency, the copper traces on the printedcircuit board are normally the only heat sinking needed.

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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 the HV Version), u00b14% Maximum Over Line and Load Conditions
  • Available in 8-Pin Surface-Mount SOIC and 8-Pin PDIP Packages
  • Ensured 0.5-A Output Current
  • High Efficiency
  • Input Voltage Range up to 60 V
  • Low Power Standby Mode, IQ Typically 85 u03bcA
  • Requires Only 4 External Components
  • TTL Shutdown Capability
  • 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 40V
DC / DC Converter IC Case SOIC
No. of Pins 8Pins
Output Current 500mA
Output Voltage Nom. 3.3V
Switching Frequency 150kHz
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 2594
Frequency 150kHz
IC Generic Number 2594
No. of Outputs 1Outputs
Operating Temperature Min -40°C
Operating Temperature Range -40°C to +125°C
Output Current Max 0.5A
Output Voltage 3.3V
Power Supply IC Type Step-down switching regulator
Primary Input Voltage 12V
Supply Voltage Max 40V
Supply Voltage Min 4.5V
Termination Type Surface Mount Device
Voltage Regulator Type Step Down Switching
RoHS Compliant

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