LMZ14203H SIMPLE SWITCHER® 6V to 42V, 3A High Output Voltage Power Module | TI.com

LMZ14203H (ACTIVE)

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

 

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)

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
LMZ14203H LMZ14201 LMZ14201H LMZ14202 LMZ14202H LMZ14203
3     1     1     2     2     3    
6     6     6     6     6     6    
42     42     42     42     42     42    
5     0.8     5     0.8     5     0.8    
24     6     24     6     24     6    
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
Tracking    
EMI Tested
Enable
Tracking    
1     1     1     1     1     1    
1     1     1     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)     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)    
1000     1000     1000     1000     1000     1000    
200     200     200     200     200     200    
800     800     800     800     800     800    
Buck
Synchronous Buck    
Buck
Synchronous Buck    
Buck
Synchronous Buck    
Buck
Synchronous Buck    
Buck
Synchronous Buck    
Buck
Synchronous Buck    
-40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125    
92.5     92.5     92.5     92.5     92.5     92.5    
TO-PMOD | 7     TO-PMOD | 7     TO-PMOD | 7     TO-PMOD | 7     TO-PMOD | 7     TO-PMOD | 7    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog    
Module     Module     Module     Module     Module     Module    

Design tool

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

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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