Product details

Iout (Max) (A) 3 Vin (Min) (V) 6 Vin (Max) (V) 36 Vout (Min) (V) 0.8 Vout (Max) (V) 6 Soft start Adjustable Features EMI Tested, Enable, Frequency Synchronization, Tracking Iq (Typ) (uA) 2600 Regulated outputs (#) 1 Switching frequency (Max) (kHz) 950 Switching frequency (Min) (kHz) 650 Duty cycle (Max) (%) 83 Topology Buck, Inverting Buck-Boost, Synchronous Buck
Iout (Max) (A) 3 Vin (Min) (V) 6 Vin (Max) (V) 36 Vout (Min) (V) 0.8 Vout (Max) (V) 6 Soft start Adjustable Features EMI Tested, Enable, Frequency Synchronization, Tracking Iq (Typ) (uA) 2600 Regulated outputs (#) 1 Switching frequency (Max) (kHz) 950 Switching frequency (Min) (kHz) 650 Duty cycle (Max) (%) 83 Topology Buck, Inverting Buck-Boost, 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 Startup 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
    LMZ22005/LMZ23605/LMZ22003
  • Performance Benefits
    • High Efficiency Reduces System Heat
      Generation
    • Tested to EN55022 Class B(1)
      • See AN-2125 (SNVA473) and layout for
        information on device under test.
      • VIN = 24 V, VO = 3.3 V, IO = 3 A
    • Low component count, only 5 external
      components
    • Low output voltage ripple
    • Uses PCB as heat sink, no airflow
      required
  • Electrical Specifications
    • 18-W maximum total output power
    • Up to 3-A output current
    • Input voltage range 6 V to 36 V
    • Output voltage range 0.8 V to 6 V
    • Efficiency up to 92%
  • Integrated Shielded Inductor
  • Simple PCB Layout
  • Frequency Synchronization Input (650 kHz to 950
    kHz)
  • Flexible Startup 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
    LMZ22005/LMZ23605/LMZ22003
  • Performance Benefits
    • High Efficiency Reduces System Heat
      Generation
    • Tested to EN55022 Class B(1)
      • See AN-2125 (SNVA473) and layout for
        information on device under test.
      • VIN = 24 V, VO = 3.3 V, IO = 3 A
    • Low component count, only 5 external
      components
    • Low output voltage ripple
    • Uses PCB as heat sink, no airflow
      required
  • Electrical Specifications
    • 18-W maximum total output power
    • Up to 3-A output current
    • Input voltage range 6 V to 36 V
    • Output voltage range 0.8 V to 6 V
    • Efficiency up to 92%

The LMZ23603 SIMPLE SWITCHER® power module is an easy-to-use step-down DC-DC solution capable of driving up to 3-A load. The LMZ23603 is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ23603 can accept an input voltage rail between 6 V and 36 V and deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ23603 only requires two external resistors and three external capacitors to complete the power solution. The LMZ23603 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 allows start-up into a prebiased output. The sync input allows synchronization over the 650-kHz to 950-kHz switching frequency range.

The LMZ23603 SIMPLE SWITCHER® power module is an easy-to-use step-down DC-DC solution capable of driving up to 3-A load. The LMZ23603 is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ23603 can accept an input voltage rail between 6 V and 36 V and deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ23603 only requires two external resistors and three external capacitors to complete the power solution. The LMZ23603 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 allows start-up into a prebiased output. The sync input allows synchronization over the 650-kHz to 950-kHz switching frequency range.

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Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

LMZ23603EVAL — 3A SIMPLE SWITCHER® Power Module with 36V 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 (...)

User guide: PDF
Not available on TI.com
Simulation model

LMZ23603 Unencrypted PSpice Average Model Package (Rev. A)

SNVM204A.ZIP (47 KB) - PSpice Model
Simulation model

LMZ23603 Unencrypted PSpice Transient Model Package (Rev. A)

SNVM205A.ZIP (40 KB) - PSpice Model
Simulation model

LMZ23603 TINA-TI Transient Spice Model

SNVM564.ZIP (17 KB) - TINA-TI Spice Model
Simulation model

LMZ23603 TINA-TI STARTUP Reference Design

SNVM565.TSC (191 KB) - TINA-TI Reference Design
Simulation model

LMZ23603 TINA-TI STEADY STATE Reference Design

SNVM566.TSC (121 KB) - TINA-TI Reference Design
Simulation model

LMZ23603 TINA-TI Average Reference Design

SNVM630.TSC (57 KB) - TINA-TI Reference Design
Simulation model

LMZ23603 TINA-TI Average Spice Model

SNVM631.ZIP (8 KB) - TINA-TI Spice Model
Simulation model

LMZ23603 Unencrypted PSpice Average Model

SNVM783.ZIP (1 KB) - PSpice Model
Simulation model

LMZ23603 Unencrypted PSpice Transient Model

SNVM784.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 (...)
Package Pins Download
TO-PMOD (NDW) 7 View options

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