3A SIMPLE SWITCHER Power Module with 42V Maximum Input Voltage - LMZ14203

LMZ14203 (ACTIVE)

3A SIMPLE SWITCHER Power Module with 42V Maximum Input Voltage

Recommended alternative parts

  • LMZ10504  -  5.5V Input Voltage Max, 4A Output Current
  • LMZ12001  -  20V, 1A Input Voltage Max, Pin-to-Pin Compatible
  • LMZ12002  -  20V, 2A Input Voltage Max, Pin-to-Pin Compatible
  • LMZ12003  -  20V Input Voltage Max Version, Pin-to-Pin Compatible
  • LMZ14201  -  1A Version, Pin-to-Pin Compatible
  • LMZ14202  -  2A Version, Pin-to-Pin Compatible

Description

The LMZ14203 SIMPLE SWITCHER® power module is an easy-to-use step-down DC-DC solution capable of driving up to 3A load with exceptional power conversion efficiency, line and load regulation, and output accuracy. The LMZ14203 is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ14203 can accept an input voltage rail between 6V and 42V and deliver an adjustable and highly accurate output voltage as low as 0.8V. The LMZ14203 only requires three external resistors and four external capacitors to complete the power solution. The LMZ14203 is a reliable and robust design with the following protection features: thermal shutdown, input under-voltage lockout, output over-voltage protection, short-circuit protection, output current limit, and allows startup into a pre-biased output. A single resistor adjusts the switching frequency up to 1 MHz.

Features

  • Integrated Shielded Inductor
  • Simple PCB Layout
  • Flexible Startup Sequencing Using External
    Soft-start and Precision Enable
  • Protection Against Inrush Currents and
    Faults such as Input UVLO and Output
    Short Circuit
  • –40°C to 125°C Junction Temperature Range
  • Single Exposed Pad and Standard Pinout
    for Easy Mounting and Manufacturing
  • Fast Transient Response for Powering FPGAs
    and ASICs
  • Low Output Voltage Ripple
  • Pin-to-pin Compatible Family:
    • LMZ14203/2/1 (42V Max 3A, 2A, 1A)
    • LMZ12003/2/1 (20V Max 3A, 2A, 1A)
  • Fully Enabled for Webench® Power Designer

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Parametrics Compare all products in Step-Down (Buck) Module

 
Brand
Iout (Max) (A)
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Soft Start
Special Features
Regulated Outputs (#)
Switching Frequency (Max) (kHz)
Switching Frequency (Min) (kHz)
Topology
Operating Temperature Range (C)
Pin/Package
Approx. Price (US$)
LMZ14203 LMZ10504 LMZ12001 LMZ12002 LMZ12003 LMZ14201 LMZ14202
SIMPLE SWITCHER     SIMPLE SWITCHER     SIMPLE SWITCHER     SIMPLE SWITCHER     SIMPLE SWITCHER     SIMPLE SWITCHER     SIMPLE SWITCHER    
3     4     1     2     3     1     2    
6     2.95     4.5     4.5     4.5     6     6    
42     5.5     20     20     20     42     42    
0.8     0.8     0.8     0.8     0.8     0.8     0.8    
6     5     6     6     6     6     6    
Adjustable     Adjustable     Adjustable     Adjustable     Adjustable     Adjustable     Adjustable    
EMI Tested
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1     1     1     1     1     1     1    
1000     1000     1000     1000     1000     1000     1000    
200     200     200     200     200     200     200    
Buck
Synchronous Buck    
Buck
Synchronous Buck    
Buck
Synchronous Buck    
Buck
Synchronous Buck    
Buck
Synchronous Buck    
Buck
Synchronous Buck    
Buck
Synchronous Buck    
-40 to 125     -40 to 85     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125    
7TO-PMOD     7TO-PMOD     7TO-PMOD     7TO-PMOD     7TO-PMOD     7TO-PMOD     7TO-PMOD    
8.50 | 1ku     4.30 | 1ku     4.25 | 1ku     4.85 | 1ku     5.15 | 1ku     5.85 | 1ku     6.75 | 1ku    
WEBENCH® LMZ14203
    Min   Max   Range  
  Vin V    6.00 – 42.00V  
  Vout V    0.80 – 6.00V  
  Iout A    ≤ 3A  
  Ambient Temp °C    -40 – 125°C  
Footprint BOM Cost Efficiency
 
   
 
 
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