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ADI LTC3545EUD-1#PBF product image
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ADI LTC3545EUD-1#PBFRoHS

Manufacturer
ADI
MPN
LTC3545EUD-1#PBF
LCSC Part #
C580742
Packaging
QFN-16-EP(3x3)
Customer #
Key Attributes
Triple 800mA Synchronous Step-Down Regulator-2.25MHz
Datasheetpdf iconADI LTC3545EUD-1#PBF
In-Stock: 44
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QtyUnit PriceTotal Amount
1+$ 7.5778$ 7.58
10+$ 6.5295$ 65.30
30+$ 5.8902$ 176.71
100+$ 5.3547$ 535.47
Standard Packaging121/Full Tube
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerADI
PackagingQFN-16-EP(3x3)
Operating Temperature-40℃~+125℃@(TJ)
Frequency - Switching2.25MHz
FunctionStep-down type
Number of Outputs3
FeaturesFrequency synchronization;Operating status indication;Light load efficient mode;Overcurrent Protection
Output TypeAdjustable
TopologyBuck
Operating Voltage2.25V~5.5V
Switch tube (built-in/external)Built-in
Output Current800mA
Output Voltage600mV~5.5V
Quiescent Current58uA
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging121
Sales UnitPiece

Introduction

AI Translation

The LTC3545/LTC3545-1 are triple, high efficiency, monolithic synchronous buck regulators using a constant frequency, current mode architecture. The regulators operate independently with separate run pins. The 2.25V to 5.5V input voltage range makes the LTC3545/LTC3545-1 well suited for single Li-Ion battery-powered applications. Low ripple pulse skip mode or high efficiency Burst Mode operation is externally selectable. PWM pulse skip mode operation provides very low output ripple voltage while Burst Mode operation increases efficiency at low output loads. Switching frequency is internally set to 2.25MHz, or the switching frequency can be synchronized to an external 1MHz to 3MHz clock. Power good indicators easily allow power on sequencing between the three regulators. The internal synchronous switches increase efficiency and eliminate external Schottky diodes. Low output voltages are supported with the 0.6V feedback reference voltage. The LTC3545-1 replaces the SYNC/MODE function with a third PGOOD pin and forces Burst Mode operation.

Features

AI Translation
  • Three 800mA Outputs
  • High Efficiency: Up to 95%
  • 2.25V to 5.5V Input Voltage Range
  • Low Ripple (<20mVₚ₋ₚ)
  • Burst Mode Operation
  • IQ: 58μA
  • 2.25MHz Constant Frequency Operation or Synchronizable to External 1MHz to 3MHz Clock
  • Power Good Indicators Ease Supply Sequencing
  • 0.6V Reference Allows Low Output Voltages
  • Current Mode Operation/Excellent Transient Response
  • Low Profile 16-Lead 3mm × 3mm QFN Package

Applications

AI Translation
  • Smart Phones
  • Wireless and DSL Modems
  • Digital Still Cameras
  • Portable Instruments
  • Point of Load Regulation