Product details

Iout (Max) (A) 3 Vin (Min) (V) 6 Vin (Max) (V) 20 Vout (Min) (V) 0.8 Vout (Max) (V) 6 Soft start Adjustable Features Adjustable Current Limit, Enable, Frequency Synchronization, Light Load Efficiency, Overcurrent protection, Power Good, Tracking Operating temperature range (C) -40 to 85 Iq (Typ) (uA) 2600 Regulated outputs (#) 1 Switching frequency (Max) (kHz) 950 Switching frequency (Min) (kHz) 650 Duty cycle (Max) (%) 83 Topology Buck, Synchronous Buck
Iout (Max) (A) 3 Vin (Min) (V) 6 Vin (Max) (V) 20 Vout (Min) (V) 0.8 Vout (Max) (V) 6 Soft start Adjustable Features Adjustable Current Limit, Enable, Frequency Synchronization, Light Load Efficiency, Overcurrent protection, Power Good, Tracking Operating temperature range (C) -40 to 85 Iq (Typ) (uA) 2600 Regulated outputs (#) 1 Switching frequency (Max) (kHz) 950 Switching frequency (Min) (kHz) 650 Duty cycle (Max) (%) 83 Topology Buck, Synchronous Buck
TO-PMOD (NDW) 7 140 mm² 10.16 x 13.77
  • Integrated Shielded Inductor
  • Simple PCB Layout
  • Frequency Synchronization Input (650 kHz to 950
    kHz)
  • Flexible Start-up Sequencing Using External Soft-
    Start, Tracking 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 Powering FPGAs
    and ASICs
  • Fully Enabled for WEBENCH® Power Designer
  • Pin Compatible With
    LMZ23605/LMZ23603/LMZ22005
  • Electrical Specifications
    • 18-W Maximum Total Output Power
    • Up to 3-A Output Current
    • Input Voltage Range 6 V to 20 V
    • Output Voltage Range 0.8 V to 6 V
    • Efficiency up to 92%
  • Performance Benefits
    • High Efficiency Reduces System Heat
      Generation
    • Tested To EN55022 Class B(1)
    • Low Component Count, Only 5 External
      Components
    • Low Output Voltage Ripple
    • Uses PCB as Heat Sink, No Airflow Required
  • Integrated Shielded Inductor
  • Simple PCB Layout
  • Frequency Synchronization Input (650 kHz to 950
    kHz)
  • Flexible Start-up Sequencing Using External Soft-
    Start, Tracking 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 Powering FPGAs
    and ASICs
  • Fully Enabled for WEBENCH® Power Designer
  • Pin Compatible With
    LMZ23605/LMZ23603/LMZ22005
  • Electrical Specifications
    • 18-W Maximum Total Output Power
    • Up to 3-A Output Current
    • Input Voltage Range 6 V to 20 V
    • Output Voltage Range 0.8 V to 6 V
    • Efficiency up to 92%
  • Performance Benefits
    • High Efficiency Reduces System Heat
      Generation
    • Tested To EN55022 Class B(1)
    • Low Component Count, Only 5 External
      Components
    • Low Output Voltage Ripple
    • Uses PCB as Heat Sink, No Airflow Required

The LMZ22003 SIMPLE SWITCHER power module is an easy-to-use step-down DC-DC solution capable of driving up to 3-A load. The LMZ22003 is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ22003 can accept an input voltage rail between 6 V and 20 V and can deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ22003 only requires two external resistors and three external capacitors to complete the power solution. The LMZ22003 is a reliable and robust design with the following protection features: thermal shutdown, programmable input undervoltage lockout, output overvoltage protection, short circuit protection, output current limit, and this device allows start-up into a prebiased output. The sync input allows synchronization over the 650- to 950-kHz switching frequency range.

The LMZ22003 SIMPLE SWITCHER power module is an easy-to-use step-down DC-DC solution capable of driving up to 3-A load. The LMZ22003 is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ22003 can accept an input voltage rail between 6 V and 20 V and can deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ22003 only requires two external resistors and three external capacitors to complete the power solution. The LMZ22003 is a reliable and robust design with the following protection features: thermal shutdown, programmable input undervoltage lockout, output overvoltage protection, short circuit protection, output current limit, and this device allows start-up into a prebiased output. The sync input allows synchronization over the 650- to 950-kHz switching frequency range.

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Design & development

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Evaluation board

LMZ22003EVAL — 3A SIMPLE SWITCHER® Power Module with 20V Maximum Input Voltage Evaluation Board

The LMZ23605/03, LMZ22005/03 evaluation boards are designed to be an easy-to-use platform to evaluate the full capabilities of this family of SIMPLE SWITCHER® power modules. The PCB construction has excellent thermal performance and includes extra locations for optional components that may not be (...)

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Simulation model

LMZ22003 PSpice Transient Model

SNVM285.ZIP (165 KB) - PSpice Model
Simulation model

LMZ22003 PSpice Average Model

SNVM286.ZIP (50 KB) - PSpice Model
Simulation model

LMZ22003 Unencrypted PSpice Average Model

SNVM775.ZIP (1 KB) - PSpice Model
Simulation model

LMZ22003 Unencrypted PSpice Transient Model

SNVM776.ZIP (2 KB) - PSpice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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