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ISSI IS32LT3951 | Demoboard IS32LT3951-GRLA3-EB

DC-to-DC switching converter

Overview

TopologyBuck Converter
Input voltage4.5-38 V
Output 11.5 A

Description

IS32LT3951 DEMO BOARD GUIDE The IS32LT3951 is a DC-to-DC switching converter that integrates an N-channel MOSFET to operate in a buck configuration. The device can operate from a wide input voltage between 4.5V and 38V and provides a constant current of up to 1.5A for driving a single LED or multiple series connected LEDs. Rev. A, 11/12/2018

Features

  • Wide input voltage supply from 4.5V to 38V
  • Withstand 40V load dump
  • True average output current control
  • 1.5A maximum output over operating temperature range
  • Cycle-by-cycle current limit
  • Integrated high-side MOSFET switch
  • Dimming via direct logic input or power supplyvoltage
  • Internal control loop compensation
  • Under-voltage lockout (UVLO) and thermalshutdown protection
  • 2μA low power shutdown
  • Spread spectrum to optimize EMI
  • Robust fault protection and reporting function:
  • Pin-to-GND short
  • Component open/short faults
  • Adjacent pin-to-pin short
  • LED open/short
  • Thermal shutdown
  • AEC-Q100 Qualified

Products

Order Code Data­sheet Simu­lation Downloads Product seriesL
(µH)
IRP,40K
(A)
ISAT
(A)
RDC max.
(mΩ)
fres
(MHz)
SizeVersion Samples
744771115SPEC
8 files WE-PD SMT Power Inductor 15 7 4.5 28 16.6 1260 Standard
Order Code Data­sheet Simu­lation
744771115SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Product seriesL
(µH)
IRP,40K
(A)
ISAT
(A)
RDC max.
(mΩ)
fres
(MHz)
SizeVersion Samples