Startseite Energiemanagement DC/DC-Spannungsversorgungsmodul Stromversorgungsmodule (integrierter Induktor)
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DC/DC-Spannungsversorgungsmodul
Stromversorgungsmodule (integrierter Induktor)

LMZ31503

AKTIV

Abwärts-Stromversorgungsmodul, 4,5 bis 15 V, 3 A, im QFN-Gehäuse 9 x 15 x 2,8 mm

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Datenblatt

LMZ31503

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck, Synchronous Buck Type Module Iout (max) (A) 3 Vin (min) (V) 4.5 Vin (max) (V) 14.5 Vout (min) (V) 0.8 Vout (max) (V) 5.5 Switching frequency (min) (kHz) 330 Switching frequency (max) (kHz) 780 Features EMI Tested, Enable, Frequency synchronization, Power good, Remote Sense, Tracking Control mode current mode Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck, Synchronous Buck Type Module Iout (max) (A) 3 Vin (min) (V) 4.5 Vin (max) (V) 14.5 Vout (min) (V) 0.8 Vout (max) (V) 5.5 Switching frequency (min) (kHz) 330 Switching frequency (max) (kHz) 780 Features EMI Tested, Enable, Frequency synchronization, Power good, Remote Sense, Tracking Control mode current mode Duty cycle (max) (%) 100
B1QFN (RUQ) 47 135 mm² 15 x 9
  • Complete Integrated Power Solution Allows
    Small Footprint, Low-Profile Design
  • 9 mm × 15mm × 2.8mm package
    - Pin Compatible with LMZ31506
  • Efficiencies Up To 95%
  • Wide-Output Voltage Adjust
    0.8 V to 5.5 V, with 1% Reference Accuracy
  • Optional Split Power Rail Allows
    Input Voltage Down to 1.6 V
  • Adjustable Switching Frequency
    (330 kHz to 780 kHz)
  • Synchronizes to an External Clock
  • Adjustable Slow-Start
  • Output Voltage Sequencing / Tracking
  • Power Good Output
  • Programmable Undervoltage Lockout (UVLO)
  • Overcurrent Protection (Hiccup-Mode)
  • Over Temperature Protection
  • Pre-bias Output Start-up
  • Operating Temperature Range: –40°C to +85°C
  • Enhanced Thermal Performance: 13°C/W
  • Meets EN55022 Class B Emissions
    - Integrated Shielded Inductor
  • Create a Custom Design Using the LMZ31503 With the WEBENCH® Power Designer
  • Complete Integrated Power Solution Allows
    Small Footprint, Low-Profile Design
  • 9 mm × 15mm × 2.8mm package
    - Pin Compatible with LMZ31506
  • Efficiencies Up To 95%
  • Wide-Output Voltage Adjust
    0.8 V to 5.5 V, with 1% Reference Accuracy
  • Optional Split Power Rail Allows
    Input Voltage Down to 1.6 V
  • Adjustable Switching Frequency
    (330 kHz to 780 kHz)
  • Synchronizes to an External Clock
  • Adjustable Slow-Start
  • Output Voltage Sequencing / Tracking
  • Power Good Output
  • Programmable Undervoltage Lockout (UVLO)
  • Overcurrent Protection (Hiccup-Mode)
  • Over Temperature Protection
  • Pre-bias Output Start-up
  • Operating Temperature Range: –40°C to +85°C
  • Enhanced Thermal Performance: 13°C/W
  • Meets EN55022 Class B Emissions
    - Integrated Shielded Inductor
  • Create a Custom Design Using the LMZ31503 With the WEBENCH® Power Designer

The LMZ31503 power module is an easy-to-use integrated power solution that combines a 3-A DC/DC converter with power MOSFETs, a shielded inductor, and passives into a low profile, QFN package. This total power solution allows as few as 3 external components and eliminates the loop compensation and magnetics design process.

The 9×15×2.8 mm QFN package is easy to solder onto a printed circuit board and allows a compact point-of-load design with up to 95% efficiency and excellent power dissipation with a thermal impedance of 13°C/W junction to ambient. The device delivers the full 3-A rated output current at 85°C ambient temperature without airflow.

The LMZ31503 offers the flexibility and the feature-set of a discrete point-of-load design and is ideal for powering performance DSPs and FPGAs. Advanced packaging technology afford a robust and reliable power solution compatible with standard QFN mounting and testing techniques.

The LMZ31503 power module is an easy-to-use integrated power solution that combines a 3-A DC/DC converter with power MOSFETs, a shielded inductor, and passives into a low profile, QFN package. This total power solution allows as few as 3 external components and eliminates the loop compensation and magnetics design process.

The 9×15×2.8 mm QFN package is easy to solder onto a printed circuit board and allows a compact point-of-load design with up to 95% efficiency and excellent power dissipation with a thermal impedance of 13°C/W junction to ambient. The device delivers the full 3-A rated output current at 85°C ambient temperature without airflow.

The LMZ31503 offers the flexibility and the feature-set of a discrete point-of-load design and is ideal for powering performance DSPs and FPGAs. Advanced packaging technology afford a robust and reliable power solution compatible with standard QFN mounting and testing techniques.
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Technische Dokumentation

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Typ Titel Datum
* Data sheet LMZ31503 3-A Power Module With 4.5V-14.5V Input in QFN Package datasheet (Rev. B) 11 Apr 2018
Selection guide Innovative DC/DC Power Modules Selection Guide (Rev. D) 14 Okt 2021
Application note Soldering Requirements for BQFN Packages (Rev. C) 05 Mär 2020
Application note Working With QFN Power Modules (Rev. A) 08 Jun 2017
Technical article Multiphase DC/DC converters provide low ripple, integrated solution for FPGA power PDF | HTML 09 Jul 2015
Application note Adjusting LMZ3 Output Voltage with LM10010/1 11 Feb 2014
Application note Powering LMZ3 SIMPLE SWITCHER Power Modules From 3.3 V 02 Jul 2013
EVM User's guide Using the LMZ31506EVM, LMZ31503EVM, LMZ31506HEVM 02 Jul 2013

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Evaluierungsplatine

LMZ31503EVM-692 — LMZ31503 4,5 V bis 14,5 V, 3 A, Abwärts-Leistungsmodul – Evaluierungsplatine

The Texas Instruments LMZ31503EVM-692 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LMZ31503 3A power module. The output voltage can be selected from six preset values using a jumper (5V, 3.3V, 2.5V, 1.8V, 1.5V, 1.2V). Solder pads and jumpers are available to (...)
Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
Simulationsmodell

LMZ31503 PSpice Transient Model

SNVMA31.ZIP (114 KB) - PSpice Model
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Simulationsmodell

LMZ31503 Unencrypted PSpice Transient Model

SNVMA30.ZIP (7 KB) - PSpice Model
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Referenzdesigns

TIDA-00574 — Referenzdesign einer kompakten und rauscharmen 5-W-Stromversorgungslösung für die Xilinx Zynq 7000-F

The TIDA-00574 shows small solution size and high curren density & low noise power solution.  It supports internal sequencing and high output voltage accuracy.
Design guide: PDF
Schaltplan: PDF
Referenzdesigns

PMP10600 — Xilinx® Zynq®Leistungslösung der 7000-Serie (XC7Z015), 5 W – Referenzdesign

The PMP10600.1 reference design provides all the power supply rails necessary to power Xilinx® Zynq® 7000 series (XC7Z015) FPGA.   This design uses several LMZ3 series modules, LDOs, and a DDR termination regulator.  It also features one LM3880 for power up and power (...)
Test report: PDF
Schaltplan: PDF
Referenzdesigns

PMP10601 — Xilinx® Zynq® 7000 Serie (XC7Z015) Leistungslösung, 8 W – Referenzdesign

The PMP10601 reference design provides all the power supply rails necessary to power Xilinx® Zynq® 7000 series (XC7Z015)  FPGA.   This design uses several LMZ3 series modules, LDOs, and a DDR termination regulator to provide all the necessary rails to power the FPGA.  It also (...)
Test report: PDF
Schaltplan: PDF
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
B1QFN (RUQ) 47 Ultra Librarian
Es gelten die allgemeinen Geschäftsbedingungen von TI für Evaluierungsartikel.

Bestellen & Qualität

Beinhaltete Information:
  • RoHS
  • REACH
  • Bausteinkennzeichnung
  • Blei-Finish/Ball-Material
  • MSL-Rating / Spitzenrückfluss
  • MTBF-/FIT-Schätzungen
  • Materialinhalt
  • Qualifikationszusammenfassung
  • Kontinuierliches Zuverlässigkeitsmonitoring
Beinhaltete Information:
  • Werksstandort
  • Montagestandort

Support und Schulungen

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