IC-Hersteller Texas Instruments

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Texas Instruments LM3152

LM3151/LM3152/LM3153 SIMPLE SWITCHER® CONTROLLER, High Input Voltage

Details

TopologieAbwärtswandler
Eingangsspannung6-42 V
Ausgang 13.3 V
IC-RevisionG

Beschreibung

The LM3151/2/3 SIMPLE SWITCHER Controller is an easy to use and simplified step down power controller capable of providing up to 12A of output current in a typical application. Operating with an input voltage range from 6V-42V, the LM3151/2/3 features a fixed output voltage of 3.3V, and features switching frequencies of 250 kHz, 500 kHz, and 750 kHz. The synchronous architecture provides for highly efficient designs. The LM3151/2/3 controller employs a Constant On-Time (COT) architecture with a proprietary Emulated Ripple Mode (ERM) control that allows for the use of low ESR output capacitors, which reduces overall solution size and output voltage ripple. The Constant On-Time (COT) regulation architecture allows for fast transientresponse and requires no loop compensation, which reduces external component count and reduces design complexity.Fault protection features such as thermal shutdown, under-voltage lockout, over-voltage protection, shortcircuit protection, current limit, and output voltage pre-bias startup allow for a reliable and robust solution.The LM3151/2/3 SIMPLE SWITCHER concept provides for an easy to use complete design using a minimum number of external components and TI’sWEBENCH online design tool. WEBENCH provides design support for every step of the design process and includes features such as external component calculation with a new MOSFET selector, electrical simulation, thermal simulation, and Build-It boards for prototyping.

Eigenschaften

  • PowerWise™ Step-down Controller
  • 6V to 42V Wide Input Voltage Range
  • Fixed Output Voltage of 3.3V
  • Fixed Switching Frequencies of 250 kHz/500kHz/750 kHz
  • No Loop Compensation Required
  • Fully WEBENCH® Enabled
  • Low External Component Count
  • Constant On-Time Control
  • Ultra-Fast Transient Response
  • Stable with Low ESR Capacitors
  • Output Voltage Pre-bias Startup
  • Valley Current Limit
  • Programmable Soft-startREMARKS:-ReferTable 1.Inductors Selection TablePage no 13

Typische Anwendungen

  • Telecom
  • Power Modules
  • Routers
  • Networking Equipment
  • Security Surveillance

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Simu­lation Downloads Status ProduktserieL
(µH)
IRP,40K
(A)
RDC max.
(mΩ)
fres
(MHz)
BauformVersionISAT1
(A)
ISAT,30%
(A)
IR,40K
(A)
Muster
7447709004SPEC
8 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WE-PD Speicherdrossel 4.7 13.1 11 38 1210 Standard 13 16 9.3
7447709006SPEC
8 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WE-PD SMT-Speicherdrossel 6.8 11.7 14 23 1210 Standard 12.8 15.7 8.4
7447709100SPEC
8 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WE-PD Speicherdrossel 10 9.5 21 21 1210 Standard 10.5 13 7.1
7447709150SPEC
8 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WE-PD Speicherdrossel 15 7.4 26 17 1210 Standard 8 9.8 6.5
Artikel Nr. Daten­blatt Simu­lation
7447709004SPEC
7447709006SPEC
7447709100SPEC
7447709150SPEC
Muster
Artikel Nr. Daten­blatt Simu­lation Downloads Status ProduktserieL
(µH)
IRP,40K
(A)
RDC max.
(mΩ)
fres
(MHz)
BauformVersionISAT1
(A)
ISAT,30%
(A)
IR,40K
(A)
Muster