LM2599 SIMPLE SWITCHER Power Converter 150 KHz 3A Step-Down Voltage Regulator with Features | TI.com

LM2599
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
SIMPLE SWITCHER Power Converter 150 KHz 3A Step-Down Voltage Regulator with Features

 

Recommended alternative parts

  • LMZ14203  -  Looking for a power module? Try the LMZ14203
  • LM43603  - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.   Synchronous 36V, 3A Regulator - Higher efficiency, Low Quiescent Current, Smaller Solution Size

Description

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 switch-mode 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

  • 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

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WEBENCH® Designer LM2599

Product Option
  Min   Max Range
Vin  V
Vout  V
Iout  A
Ambient Temp  °C -40 to 125°C

Parametrics

Compare all products in Buck converters (integrated switch) Email Download to Excel
Part number Order Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Iout (Max) (A) Regulated outputs (#) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Control mode Duty cycle (Max) (%) Operating temperature range (C) Rating Package Group Type Package size: mm2:W x L (PKG)
LM2599 Order now 4.5     40     3.3     37     3     1     110     173     5     Over Current Protection
Power Good    
Voltage Mode     100     -40 to 125     Catalog     DDPAK/TO-263 | 7
TO-220 | 7    
Converter     7DDPAK/TO-263: 154 mm2: 15.24 x 10.1 (DDPAK/TO-263 | 7)
7TO-220: 83 mm2: 8.13 x 10.16 (TO-220 | 7)    
LM2590HV Order now 4.5     60     3.3     57     1     1     110     173     5     Over Current Protection
Power Good    
Voltage Mode     100     -40 to 125     Catalog     DDPAK/TO-263 | 7
TO-220 | 7    
Converter     7DDPAK/TO-263: 154 mm2: 15.24 x 10.1 (DDPAK/TO-263 | 7)
7TO-220: 83 mm2: 8.13 x 10.16 (TO-220 | 7)    
LM2591HV Order now 4.5     60     3.3     57     1     1     110     173     1     Enable
Over Current Protection    
Voltage Mode     100     -40 to 125     Catalog     DDPAK/TO-263 | 5
TO-220 | 5    
Converter     5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)
5TO-220: 86 mm2: 8.47 x 10.16 (TO-220 | 5)    
LM2592HV Order now 4.5     60     3.3     57     2     1     110     173     10     Enable
Over Current Protection    
Voltage Mode     100     -40 to 125     Catalog     DDPAK/TO-263 | 5
TO-220 | 5    
Converter     5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)
5TO-220: 86 mm2: 8.47 x 10.16 (TO-220 | 5)    
LM2593HV Order now 4.5     60     1.2     57     2     1     110     173     5