LMZ14203H (ACTIVE)

SIMPLE SWITCHER® 6V to 42V, 3A High Output Voltage Power Module

SIMPLE SWITCHER® 6V to 42V, 3A High Output Voltage Power Module  - LMZ14203H
 

Description

The LMZ14203H SIMPLE SWITCHER® power module is an easy-to-use step-down DC-DC solution that can drive up to 3-A load with exceptional power conversion efficiency, line and load regulation, and output accuracy. The LMZ14203H is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ14203H can accept an input voltage rail between 6 V and 42 V and deliver an adjustable and highly accurate output voltage as low as 5 V. The LMZ14203H only requires three external resistors and four external capacitors to complete the power solution. The LMZ14203H is a reliable and robust design with the following protection features: thermal shutdown, input undervoltage lockout, output overvoltage protection, short-circuit protection, output current limit, and allows start-up into a prebiased output. A single resistor adjusts the switching frequency up to 1 MHz.

Features

  • Integrated Shielded Inductor
  • Simple PCB Layout
  • Flexible Start-Up Sequencing Using External Soft-
    Start and Precision Enable
  • Protection Against Inrush Currents
  • Input UVLO and Output Short-Circuit Protection
  • –40°C to 125°C Junction Temperature Range
  • Single Exposed Pad and Standard Pinout for Easy
    Mounting and Manufacturing
  • Low Output Voltage Ripple
  • Pin-to-Pin Compatible Family:
    • LMZ14203H/2H/1H (42 V Maximum, 3-A, 2-A,
      1-A)
    • LMZ14203/2/1 (4 2V Maximum, 3-A, 2-A, 1-A)
    • LMZ12003/2/1 (20 V Maximum, 3-A, 2-A, 1-A)
  • Fully Enabled for WEBENCH® Power Designer
  • Electrical Specifications
    • Up to 3-A Output Current
    • Input Voltage Range 6 V to 42 V
    • Output Voltage as Low as 5 V
    • Efficiency up to 97%
  • Performance Benefits
    • High Efficiency Reduces System Heat
      Generation
    • Low Radiated EMI (EN 55022 Class B Tested)
    • No Compensation Required
    • Low Package Thermal Resistance(1)

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

 
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)
Pin/Package
LMZ14203H LMZ14202 LMZ14202H LMZ14203 LMZ23603 LMZ34202 LMZ35003 LMZ36002
3    2    2    3    3    2    2.5    2   
6    6    6    6    6    4.5    7    4.5   
42    42    42    42    36    42    50    60   
5    0.8    5    0.8    0.8    2.5    2.5    2.5   
24    6    24    6    6    7.5    15    7.5   
Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable   
EMI Tested
Enable
Tracking   
EMI Tested
Enable
Tracking   
EMI Tested
Enable
Tracking   
EMI Tested
Enable
Tracking   
EMI Tested
Enable
Frequency Synchronization
Tracking   
EMI Tested
Enable
Frequency Synchronization
Light Load Efficiency
Power Good
Remote Sense   
EMI Tested
Enable
Frequency Synchronization
Power Good
Remote Sense
Tracking   
EMI Tested
Enable
Frequency Synchronization
Light Load Efficiency
Power Good
Remote Sense   
1    1    1    1    2.6         
1    1    1    1    1    1    1    1   
7TO-PMOD: 140 mm2: 13.77 x 10.16(TO-PMOD)    7TO-PMOD: 140 mm2: 13.77 x 10.16(TO-PMOD)    7TO-PMOD: 140 mm2: 13.77 x 10.16(TO-PMOD)    7TO-PMOD: 140 mm2: 13.77 x 10.16(TO-PMOD)    7TO-PMOD: 140 mm2: 13.77 x 10.16(TO-PMOD)    43B3QFN: 100 mm2: 10 x 10(B3QFN)    41B1QFN: 99 mm2: 9 x 11(B1QFN)    43B3QFN: 100 mm2: 10 x 10(B3QFN)   
1000    1000    1000    1000    950    1000    1000    1000   
200    200    200    200    650    200    300    200   
800    800    800    800    812    500    400    500   
Buck
Synchronous Buck   
Buck
Synchronous Buck   
Buck
Synchronous Buck   
Buck
Synchronous Buck   
Buck
Synchronous Buck   
Buck
Synchronous Buck   
Buck    Buck
Synchronous Buck   
-40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 85    -40 to 105    -40 to 85    -40 to 105   
7TO-PMOD    7TO-PMOD    7TO-PMOD    7TO-PMOD    7TO-PMOD    43B3QFN    41B1QFN    43B3QFN   
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WEBENCH® Designer LMZ14203H

  Min   Max Range
Vin  V 6.0 to 42.0V
Vout  V 5 to 30V
Iout  A ≤ 3A
Ambient Temp  °C -40 to 125°C


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