Texas Instruments

LMZ14203 SIMPLE SWITCHER® Power Modules

Texas Instruments offers its LMZ14203 SIMPLE SWITCHER, 6 V to 42 V, 3 A power modules in a leaded, surface-mount TO package

Image of Texas Instruments' LMZ14203 SIMPLE SWITCHER® Power ModulesTexas Instruments' LMZ14203 SIMPLE SWITCHER power modules are easy-to-use, step-down, DC-DC solutions that can drive up to 3 A load with exceptional power conversion efficiency, line and load regulation, and output accuracy. The LMZ14203 are 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 are a reliable and robust design with the following protection features: thermal shutdown, input UVLO, output overvoltage protection, short-circuit protection, output current limit, and it 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])(1)
    • Passes 10 V/m radiated immunity EMI test standard EN61000 4-3

Evaluation Boards

ImageManufacturer Part NumberDescriptionRegulator TopologyAvailable QuantityPriceView Details
EVAL BOARD FOR LMZ14203LMZ14203DEMO/NOPBEVAL BOARD FOR LMZ14203Buck2 - Immediate$780.00View Details
EVAL BOARD FOR LMZ14203LMZ14203EVAL/NOPBEVAL BOARD FOR LMZ14203Buck1 - Immediate$1,911.00View Details
EVAL BOARD FOR LMZ14203EXTLMZ14203EXTEVAL/NOPBEVAL BOARD FOR LMZ14203EXTBuck4 - Immediate$1,911.00View Details
EVAL BOARD FOR LMZ14203HLMZ14203HEVAL/NOPBEVAL BOARD FOR LMZ14203HBuck26 - Immediate$1,911.00View Details
Published: 2016-08-02

Related Videos

Design with TI's LMK61E2 high performance oscillator for exceptional vibration resistance
Design with TI's LMK61E2 high performance oscillator for exceptional vibration resistance

Publish Date: 2016-08-01

TI's LMK61E2 Ultra Low Jitter Oscillators | DigiKey Daily
TI's LMK61E2 Ultra Low Jitter Oscillators | DigiKey Daily

Publish Date: 2016-03-01

Layout Tips for Radiated EMI Reduction in Your Designs
Layout Tips for Radiated EMI Reduction in Your Designs

Publish Date: 2015-06-10

Related Product Highlight

LMK6H Series Oscillator with BAW Fixed-Frequency HCSL Texas Instruments' LMK6H series BAW HCSL oscillator is designed for telecommunications data and enterprise networks, and industrial applications.
ISOUSB211 High/Full/Low-Speed Isolated USB Repeater Texas Instruments' ISOUSB211 high/full/low-speed USB repeater offers link power management allowing for drop-in USB hubs, hosts, peripherals, and more.
ISO776x Six-Channel Digital Isolators Texas Instruments' ISO776x devices uses an ON-OFF keying (OOK) modulation scheme to transmit the digital data across a silicon-dioxide based isolation barrier.

Related Articles and Blogs

Robotics, the Next Generation To develop intelligent and sophisticated robot systems requires innovative analog and embedded technologies and Texas Instruments offers some helpful products.
Digital Isolation Devices Find Pervasive Role in Energy Harvesting Applications Digital isolation ICs help designers check for proper isolation in a circuit and also provides designs with greater flexibility and accuracy.
Addressing the Challenges of Power Management in Wireless Sensor Networks WSNs This article looks at power management for wireless sensor networks and the importance of selecting the proper device for the application.

Related Product Training Modules

SIMPLE SWITCHER® Portfolio Overview Presenting the SIMPLE SWITCHER® portfolio of regulators, power modules and controllers.
Powering FPGAs with SIMPLE SWITCHER® LMZ3 Power Modules FPGA Basics and Considerations such as: Voltage Accuracy, Tolerance Requirements, Sequencing Solutions, Power Estimation Tools and In-Rush Current Solutions.
SIMPLE SWITCHER® Power Modules SIMPLE SWITCHER® power modules drive up to 10A per single module, have an input voltage range of 6 V to 20 V to 36 V and an output voltage range of 0.8 V to 5 V.