Buck-Boost (3.8V @ 1.5A) for LED Drivers

(ACTIVE) PMP2440

Description & Features

Technical Documents

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Description

This high-current single LED driver operates from a single cell Li-Ion battery or a 5V input. It uses a sync-buck controller to implement a 4-switch buck-boost topology. This allows it to operate at near 50% duty cycle, with lower component stresses while regulating a constant LED current.

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


Bill of Materials (BOM)

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Parametrics
 PMP2440.1
(Output Voltage 1)
Vin (Min) (V)3
Vin (Max) (V)5.5
Vout (Nom) (V)3.8
Iout (Max) (A)1.5
Output Power (W)5.7
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBuck Boost- 4 Switch
Buck Boost- Synchronous

TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TPS54610  3V to 6V Input, 6A Synchronous Step-Down Converter  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TPS54610 Download -

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Step 2: Download the Symbol and Footprint from the CAD.bxl file table.


Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views
PDF 1482 14 Jan 2011 8
Design files (2)
Title Abstract Type Size (KB) Date Views
PDF 20 14 Jan 2011 8
PDF 54 14 Jan 2011 12

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