2A SIMPLE SWITCHER Power Module with 20V Maximum Input Voltage

2A SIMPLE SWITCHER Power Module with 20V Maximum Input Voltage - LMZ12002

Recommended alternative parts

  • LMZ10504  -  5.5V Input Voltage Max, 4A
  • LMZ12001  -  1A Version, Pin-to-Pin Compatible
  • LMZ12003  -  3A Version, Pin-to-Pin Compatible
  • LMZ14201  -  42V Input Voltage Max, 1A, Pin-to-Pin Compatible
  • LMZ14202  -  42V Input Voltage Max, 2A, Pin-to-Pin Compatible
  • LMZ14203  -  42V Input Voltage Max, 3A, Pin-to-Pin Compatible


The LMZ12002 SIMPLE SWITCHER® power module is an easy-to-use step-down DC-DC solution capable of driving up to 2-A load with exceptional power conversion efficiency, line and load regulation, and output accuracy. The LMZ12002 is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ12002 can accept an input voltage rail between 4.5 V and 20 V, and can deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ12002 only requires three external resistors and four external capacitors to complete the power solution. The LMZ12002 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 the device allows start-up into a prebiased output. A single resistor adjusts the switching frequency up to 1 MHz.


  • Integrated Shielded Inductor
  • Simple PCB Layout
  • Flexible Start-up Sequencing Using External Soft-
    Start Capacitor 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 FPGAs and ASICs
  • Low Output Voltage Ripple
  • Pin-to-Pin Compatible With Family Devices:
    • LMZ14203/2/1 (42-V Maximum 3 A, 2 A, 1 A)
    • LMZ12003/2/1 (20-V Maximum 3 A, 2 A, 1 A)
  • Fully WEBENCH® Power Designer Enabled
  • Performance Benefits
    • 12-W Maximum Total Power Output
    • Up to 2-A Output Current
    • Input Voltage Range 4.5 V to 20 V
    • Output Voltage Range 0.8 V to 6 V
    • Efficiency up to 92%
  • Electrical Specifications
    • Operates at High Ambient Temperature With
      No Thermal Derating
    • High Efficiency Reduces System Heat
    • Low Radiated Emissions (EMI) Tested to
      EN55022 Class B Standard
    • Low External Component Count

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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
Iq (Typ) (mA)
Regulated Outputs (#)
Package Size: mm2:W x L (PKG)
Switching Frequency (Max) (kHz)
Switching Frequency (Min) (kHz)
Operating Temperature Range (C)
EMI Tested
7TO-PMOD: 140 mm2: 13.77 x 10.16(TO-PMOD)   
Synchronous Buck   
-40 to 125   
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WEBENCH® Designer LMZ12002

  Min   Max Range
Vin  V 4.5 to 20.0V
Vout  V 0.8 to 6V
Iout  A ≤ 2A
Ambient Temp  °C -40 to 125°C

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