Part IS32LT3953
Description CONSTANT-CURRENT 3-AMPERE PWM DIMMABLE BUCK REGULATOR LED DRIVER
Manufacturer ISSI
Size 677.96 KB
Pricing from 1.35 USD, available from DigiKey and Avnet.
ISSI

IS32LT3953 Overview

Key Specifications

Operating Voltage: 24 V
Max Voltage (typical range): 38 V
Min Voltage (typical range): 4.5 V
Length: 4.9 mm

Description

The IS32LT3953 is a DC-to-DC switching converter with an integrated N-channel MOSFET operating in a buck configuration. The device is connected to a voltage higher than the LED voltage; between 6V and 48V and provides a constant current of up to 3.0A for driving a single LED or multiple series connected LEDs.

Key Features

  • Supply voltage 6V ~ 48V
  • True average output current control
  • 3.0A maximum output over operating temperature range
  • Cycle-by-cycle current limit
  • Integrated MOSFET switch
  • Dimming via direct logic input or power supply voltage
  • Internal control loop compensation
  • Under-voltage lockout (UVLO) and thermal shutdown protection
  • Low power shutdown (1μA typical)
  • Robust protection against

Price & Availability

Seller Inventory Price Breaks Buy
DigiKey 3975 1+ : 1.35 USD
10+ : 0.979 USD
25+ : 0.8868 USD
100+ : 0.7857 USD
View Offer
DigiKey 3975 1+ : 1.35 USD
10+ : 0.979 USD
25+ : 0.8868 USD
100+ : 0.7857 USD
View Offer