LMZ14203 SIMPLE SWITCHER® 6V to 42V, 3A Power Module in Leaded Surface Mount TO Package | TI.com

LMZ14203 (ACTIVE) SIMPLE SWITCHER® 6V to 42V, 3A Power Module in Leaded Surface Mount TO Package

 

Description

The LMZ14203 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 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 6 V and 42 V and deliver an adjustable and highly accurate output voltage as low as 0.8 V. 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 UVLO, 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 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:
    • LMZ1420x (42 V Maximum 3 A, 2 A, 1 A)
    • LMZ1200x (20 V Maximum 3 A, 2 A, 1 A)
  • Fully Enabled for WEBENCH® Power Designer
  • Electrical Specifications
    • 18-W Maximum Total Output Power
    • Up to 3-A Output Current
    • Input Voltage Range 6 V to 42 V
    • Output Voltage Range 0.8 V to 6 V
    • Efficiency up to 90%
  • Performance Benefits
    • Operates at High Ambient Temperature With No Thermal Derating
    • High Efficiency Reduces System Heat Generation
    • Low Radiated Emissions (Electromagnetic Interference [EMI]) Tested With EN55022 Class B Standard
    • Passes 10-V/m Radiated Immunity EMI Test Standard EN61000 4-3
  • Create a Custom Design Using the LMZ14203 With the WEBENCH® Power Designer

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

Parametrics

Compare all products in Buck modules (integrated inductor) Email Download to Excel
Part number Order 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
LMZ14203 Order now 3     6     42     0.8     6     Adjustable     EMI Tested
Enable
Tracking    
1     1     7TO-PMOD: 140 mm2: 13.77 x 10.16 (TO-PMOD | 7)     1000     200     800     Buck
Inverting Buck-Boost
Synchronous Buck    
-40 to 125     92.5     TO-PMOD | 7     Catalog     Module    
LMZ14201 Order now 1     6     42     0.8     6     Adjustable     EMI Tested
Enable
Tracking    
1     1     7TO-PMOD: 140 mm2: 13.77 x 10.16 (TO-PMOD | 7)     1000     200     800     Buck
Inverting Buck-Boost
Synchronous Buck    
-40 to 125     92.5     TO-PMOD | 7     Catalog     Module    
LMZ14201H Order now 1     6     42     5     24     Adjustable     EMI Tested
Enable
Tracking    
1     1     7TO-PMOD: 140 mm2: 13.77 x 10.16 (TO-PMOD | 7)     1000     200     800     Buck
Inverting Buck-Boost
Synchronous Buck    
-40 to 125     92.5     TO-PMOD | 7     Catalog     Module    
LMZ14202 Order now 2     6     42     0.8     6     Adjustable     EMI Tested
Enable
Tracking    
1     1     7TO-PMOD: 140 mm2: 13.77 x 10.16 (TO-PMOD | 7)     1000     200     800     Buck
Inverting Buck-Boost
Synchronous Buck    
-40 to 125     92.5     TO-PMOD | 7     Catalog     Module    
LMZ14202H Order now 2     6     42     5     24     Adjustable     EMI Tested
Enable
Tracking    
1     1