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6-DFN
Integrated Circuits (ICs)

LTC3543EDCB#TRPBF

Active
Analog Devices Inc./Maxim Integrated

CONV DC-DC 2.5V TO 5.5V SYNCHRONOUS STEP DOWN SINGLE-OUT 0.6V TO 5.5V 0.6A 6-PIN DFN EP T/R

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Search across all available documentation for this part.

DocumentsTape and Reel PackagingDatasheet+1
6-DFN
Integrated Circuits (ICs)

LTC3543EDCB#TRPBF

Active
Analog Devices Inc./Maxim Integrated

CONV DC-DC 2.5V TO 5.5V SYNCHRONOUS STEP DOWN SINGLE-OUT 0.6V TO 5.5V 0.6A 6-PIN DFN EP T/R

Deep-Dive with AI

DocumentsTape and Reel PackagingDatasheet+1

Technical Specifications

Parameters and characteristics for this part

SpecificationLTC3543EDCB#TRPBF
Current - Output600 mA
Frequency - Switching2.25 MHz
FunctionStep-Down
Mounting TypeSurface Mount
Number of Outputs1
Operating Temperature [Max]85 C
Operating Temperature [Min]-40 ¯C
Output ConfigurationPositive
Output TypeAdjustable
Package / Case6-WFDFN Exposed Pad
Supplier Device Package6-DFN (2x3)
Synchronous RectifierTrue
TopologyBuck
Voltage - Input (Max) [Max]5.5 V
Voltage - Input (Min) [Min]2.5 V
Voltage - Output (Max) [Max]5.5 V
Voltage - Output (Min/Fixed)0.6 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$Updated
ArrowN/A 2500$ 3.141m+
DigikeyCut Tape (CT) 1$ 7.471m+
10$ 5.10
25$ 4.49
100$ 3.80
250$ 3.47
500$ 3.26
1000$ 3.10
Digi-Reel® 1$ 7.471m+
10$ 5.10
25$ 4.49
100$ 3.80
250$ 3.47
500$ 3.26
1000$ 3.10
N/A 1419$ 7.201m+
Tape & Reel (TR) 2500$ 2.941m+

Description

General part information

LTC3543 Series

The LTC3543 is a high efficiency monolithic synchronous current mode buck regulator.The switching frequency is internally set at 2.25MHz, allowing the use of small surface mount inductors and capacitors. In PLL mode, the LTC3543 can acquire frequencies between 1MHz and 3MHz. Also, the LTC3543 has spread spectrum capability providing a lower noise regulated output, as well as low noise at the input.In Burst Mode®operation, the supply current is only 45µA, dropping to <1µA in shutdown. The 2.5V to 5.5V input voltage range makes the LTC3543 ideally suited for single Li-Ion battery-powered applications. The 100% duty cycle provides a low dropout operation, extending the battery life in portable systems. Burst Mode operation increases efficiency at light loads, further extending battery life. The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode.ApplicationsPortable InstrumentsCellular Phones