LMZ23603 3A SIMPLE SWITCHER® Power Module with 36V Maximum Input Voltage | TI.com

LMZ23603 (ACTIVE)

3A SIMPLE SWITCHER® Power Module with 36V Maximum Input Voltage

 

Description

The LMZ23603 SIMPLE SWITCHER® power module is an easy-to-use step-down DC-DC solution capable of driving up to 3-A load. The LMZ23603 is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ23603 can accept an input voltage rail between 6 V and 36 V and deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ23603 only requires two external resistors and three external capacitors to complete the power solution. The LMZ23603 is a reliable and robust design with the following protection features: thermal shutdown, programmable input undervoltage lockout, output overvoltage protection, short circuit protection, output current limit, and allows start-up into a prebiased output. The sync input allows synchronization over the 650-kHz to 950-kHz switching frequency range.

Features

  • Integrated Shielded Inductor
  • Simple PCB Layout
  • Frequency Synchronization Input (650 kHz to 950
    kHz)
  • Flexible Startup Sequencing Using External Soft-
    start, Tracking and Precision Enable
  • Protection Against Inrush Currents and Faults
    Such as Input UVLO and Output Short Circuit
  • Junction Temperature Range –40°C to
    125°C
  • Single Exposed Pad and Standard Pinout for
    Easy Mounting and Manufacturing
  • Fast Transient Response for Powering FPGAs
    and ASICs
  • Fully Enabled for WEBENCH Power Designer
  • Pin Compatible With
    LMZ22005/LMZ23605/LMZ22003
  • Performance Benefits
    • High Efficiency Reduces System Heat
      Generation
    • Tested to EN55022 Class B(1)
      • See AN-2125 (SNVA473) and layout for
        information on device under test.
      • VIN = 24 V, VO = 3.3 V, IO = 3 A
    • Low component count, only 5 external
      components
    • Low output voltage ripple
    • Uses PCB as heat sink, no airflow
      required
  • Electrical Specifications
    • 18-W maximum total output power
    • Up to 3-A output current
    • Input voltage range 6 V to 36 V
    • Output voltage range 0.8 V to 6 V
    • Efficiency up to 92%

View more

Parametrics Compare all products in Buck modules (integrated inductor)

 
Iout (Max) (A)
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Soft Start
Features
Iq (Typ) (mA)
Regulated Outputs (#)
Package Size: mm2:W x L (PKG)
Switching Frequency (Max) (kHz)
Switching Frequency (Min) (kHz)
Switching Frequency (Typ) (kHz)
Topology
Operating Temperature Range (C)
Duty Cycle (Max) (%)
Package Group
Rating
Type
LMZ23603 LMZ22005 LMZ23605
3     5     5    
6     6     6    
36     20     36    
0.8     0.8     0.8    
6     6     6    
Adjustable     Adjustable     Adjustable    
EMI Tested
Enable
Frequency Synchronization
Tracking    
EMI Tested
Enable
Frequency Synchronization
Tracking    
EMI Tested
Enable
Frequency Synchronization
Tracking    
2.6     2.6      
1     1     1    
7TO-PMOD: 140 mm2: 13.77 x 10.16 (TO-PMOD | 7)     7TO-PMOD: 140 mm2: 13.77 x 10.16 (TO-PMOD | 7)     7TO-PMOD: 140 mm2: 13.77 x 10.16 (TO-PMOD | 7)    
950     950     950    
650     650     650    
812     812     812    
Buck
Synchronous Buck    
Buck
Synchronous Buck    
Buck
Synchronous Buck    
-40 to 85     -40 to 85     -40 to 85    
83     83     83    
TO-PMOD | 7     TO-PMOD | 7     TO-PMOD | 7    
Catalog     Catalog     Catalog    
Module     Module     Module    

Design tool

New!
WEBENCH® Power Designer is now even easier to use. Try it now.

WEBENCH® Designer LMZ23603

  Min   Max Range
Vin  V 6.0 to 36.0V
Vout  V 0.8 to 6V
Iout  A ≤ 3A
Ambient Temp  °C -40 to 125°C


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