IC-Hersteller Texas Instruments

IC-Hersteller (96)

Texas Instruments LM26420-Q1 | Demoboard PMP15023

Automotive Wide-VIN to Point-of-Load Power Supply with Front-End Circuit Protection Reference Design

Details

TopologieAbwärtswandler
IC-RevisionE1

Beschreibung

This automotive point-of-load power supply reference design features complete front-end protection in a small overall solution size. The system can clamp fast high-voltage electrical transients and maintain operation through these events. It can also properly respond to a reverse battery polarity event and shut down appropriately. This three-output design employs sequencing of two buck regulators to ensure proper power-on and power-down timing, and features an input pi filter to reduce conducted EMI. The design accepts an input voltage of 5 V to 36 V and provides outputs of 3.3 V, 1.2 V, and 1.8 V. This supply is capable of supplying 2 A on the 1.8 V and 1.2-V outputs, while the 3.3-V output simultaneously supplies 3.55 A.

Eigenschaften

  • Complete wide Vin front-end automotive power supply
  • Off-battery operation with reverse battery protection
  • Positive and negative transient voltage protection
  • Auto-sequencing of all three power rails
  • Reduced EMI with included pi filter

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieL
(µH)
IRP,40K
(A)
ISAT1
(A)
ISAT,30%
(A)
RDC max.
(mΩ)
fres
(MHz)
Montageart Muster
74437346010SPEC
8 Dateien WE-LHMI SMT Speicherdrossel 1 11.4 14.7 29 10 54 SMT
Artikel Nr. Daten­blatt Simu­lation
74437346010SPEC
Muster
Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieL
(µH)
IRP,40K
(A)
ISAT1
(A)
ISAT,30%
(A)
RDC max.
(mΩ)
fres
(MHz)
Montageart Muster