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TI LM2599S-3.3/NOPB product image
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TI LM2599S-3.3/NOPBRoHS

Manufacturer
TI
MPN
LM2599S-3.3/NOPB
LCSC Part #
C205456
Packaging
TO-263-7
Customer #
Key Attributes
High-Efficiency Buck Switching Regulator
Datasheetpdf iconTI LM2599S-3.3/NOPB
In-Stock: 4
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QtyUnit PriceTotal Amount
1+$ 8.0306$ 8.03
10+$ 7.8326$ 78.33
45+$ 7.5549$ 339.97
90+$ 7.423$ 668.07
Standard Packaging45/Full Tube
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerTI
PackagingTO-263-7
Operating Temperature-40℃~+125℃@(TJ)
Frequency - Switching150kHz
FunctionStep-down type
Number of Outputs1
FeaturesAdjustable soft-start;Overcurrent Protection;Operating status indication
Output TypeFixed
TopologyBuck
Operating Voltage4.5V~40V
Switch tube (built-in/external)Built-in
Output Voltage3.3V
Output Current3A
Quiescent Current5mA
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Introduction

AI Translation

The LM2599 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 3-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. The LM2598 is a member of the LM259x family, 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 and Soft-start, error flag delay, and error flag output. The LM2599 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. Available in a standard 7-pin TO-220 package with several different lead bend options, and a 7-pin TO-263 surface-mount package. A standard series of inductors (both through-hole and surface-mount types) are available from several different manufacturers optimized for use with the LM2599 series. This feature greatly simplifies the design of switchmode power supplies. Other features include a ±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 typically 80 μA standby current. Self-protection features include a two stage current limit for the output switch and an overtemperature shutdown for complete protection under fault conditions.

Features

AI Translation
  • 3.3-V, 5-V, 12-V, and Adjustable Output Versions
  • Adjustable Version Output Voltage Range: 1.2 V to 37 V ±4% Maximum Over Line and Load Conditions
  • 3-A Output Current
  • Available in 7-Pin TO-220 and TO-263 (Surface Mount) Package
  • Input Voltage Range Up to 40 V
  • 150-kHz Fixed-Frequency Internal Oscillator
  • Shutdown and Soft-Start
  • Out-of-Regulation Error Flag
  • Error Output Delay
  • Low Power Standby Mode, IQ, Typically 80 μA
  • High Efficiency
  • Uses Readily Available Standard Inductors
  • Thermal Shutdown and Current-Limit Protection

Applications

AI Translation
  • Simple High-Efficiency Step-Down (Buck) Regulator
  • Efficient Preregulator for Linear Regulators
  • On-Card Switching Regulators
  • Positive to Negative Converter