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ADI LT3504IUFD#TRPBF product image
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ADI LT3504IUFD#TRPBFRoHS

Manufacturer
ADI
MPN
LT3504IUFD#TRPBF
LCSC Part #
C670795
Packaging
QFN-28-EP(4x5)
Customer #
Key Attributes
Quad 40V/1A Step-Down Switching Regulator with 100% Duty Cycle Operation
Datasheetpdf iconADI LT3504IUFD#TRPBF
In-Stock: 20
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QtyUnit PriceTotal Amount
1+$ 12.9117$ 12.91
10+$ 12.4964$ 124.96
Standard Packaging2500/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerADI
PackagingQFN-28-EP(4x5)
Operating Temperature-40℃~+125℃@(TJ)
Frequency - Switching2.1MHz
FunctionStep-down type
Number of Outputs4
FeaturesCycle-by-cycle current limiting;Adjustable soft-start;Output voltage tracking;Frequency synchronization;Operating status indication
Output TypeAdjustable
TopologyBuck
Operating Voltage3.2V~40V
Switch tube (built-in/external)Built-in
Output Current1A
Output Voltage800mV~40V
Quiescent Current4uA
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Introduction

AI Translation

The LT3504 consists of four 1A output current buck regulators. The LT3504 has a wide operating input range of 3.2V to 40V. An on-chip boost regulator allows each channel to operate up to 100% duty cycle and eliminates the need for four external charge pump circuits. The LT3504 is designed to minimize external component count and results in a simple and small application circuit. The LT3504 operates robustly in fault conditions. Cycleby-cycle peak current limit and catch diode current limit sensing protect the part during overload conditions. Thermal shutdown protects the power switches at elevated temperatures. Soft-start helps keep the peak inductor current under control during startup. The LT3504 also features output voltage tracking and sequencing, programmable frequency, programmable undervoltage lockout, and a power good pin to indicate when all outputs are in regulation.

Features

AI Translation
  • Wide Input Range: 3.2V to 40V
  • Four 1A Outputs
  • 100% Duty Cycle Operation
  • Resistor-Programmed Constant Frequency
  • Short-Circuit Robust
  • Wide SYNC Range: 350kHz to 2.2MHz
  • Anti-Phase Switching Reduces Ripple
  • 800mV FB Voltage
  • Independent Run/Soft-Start Pins
  • Shutdown with UVLO
  • Internal Compensation
  • Thermal Shutdown
  • Tiny 28-Lead 4mm×5mm Thermally Enhanced QFN Package

Applications

AI Translation
  • Automotive Battery Regulation
  • Industrial Control Supplies
  • Wall Transformer Regulation
  • Distributed Supply Regulation