LMZ23603

ACTIVE

3A SIMPLE SWITCHER® Power Module with 36V Maximum Input Voltage

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Product details

Parameters

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 Operating temperature range (C) -40 to 85 Iq (Typ) (mA) 2.6 Regulated outputs (#) 1 Switching frequency (Max) (kHz) 950 Switching frequency (Min) (kHz) 650 Switching frequency (Typ) (kHz) 812 Duty cycle (Max) (%) 83 Topology Buck, Inverting Buck-Boost, Synchronous Buck open-in-new Find other Buck modules (integrated inductor)

Package | Pins | Size

TO-PMOD (NDW) 7 140 mm² 10.16 x 13.77 open-in-new Find other Buck modules (integrated inductor)

Features

  • 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%
open-in-new Find other Buck modules (integrated inductor)

Description

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.

open-in-new Find other Buck modules (integrated inductor)
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Technical documentation

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$25.00
Description

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 (...)

Features
  • VIN = 6V to 36V
    • LMZ22005/03 limited to 20V
  • Enable UVLO = 5.7V
  • VOUT = 3.3V
  • IOUT = 0 to 5A
    • LMZ23603 and LMZ22003 limited to 3A
  • θJA = 12°C / W, θJC = 1.9°C/W
  • PCB designed on four layers
    • Inner are 2 oz
    • Outer are 3oz.
  • Measures 3.5 in. x 3.5 in. (8.9 cm x 8.9 cm)
  • 62mil (.062 inch) thick of FR4 laminate material
  • Max (...)

Design tools & simulation

SIMULATION MODELS Download
SNVM204A.ZIP (47 KB) - PSpice Model
SIMULATION MODELS Download
SNVM205A.ZIP (40 KB) - PSpice Model
SIMULATION MODELS Download
SNVM564.ZIP (17 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SNVM565.TSC (191 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SNVM566.TSC (121 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SNVM630.TSC (57 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SNVM631.ZIP (8 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SNVM783.ZIP (1 KB) - PSpice Model
SIMULATION MODELS Download
SNVM784.ZIP (2 KB) - PSpice Model

CAD/CAE symbols

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

Ordering & quality

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