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ADI LTC3218EDDB#TRMPBF product image
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ADI LTC3218EDDB#TRMPBFRoHS

Manufacturer
ADI
MPN
LTC3218EDDB#TRMPBF
LCSC Part #
C684304
Packaging
DFN-10-EP(2x3)
Customer #
Key Attributes
Single Wire Camera LED Charge Pump
Datasheetpdf iconADI LTC3218EDDB#TRMPBF
In-Stock: 7
7 In stock, ships now
Minimum: 1Multiple: 1Sales Unit: Piece
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QtyUnit PriceTotal Amount
1+$ 7.7666$ 7.77
10+$ 7.5866$ 75.87
30+$ 7.4666$ 224.00
100+$ 7.3482$ 734.82
Standard Packaging500/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/LED Drivers
ManufacturerADI
PackagingDFN-10-EP(2x3)
Frequency - Switching1MHz
Dimming-
Voltage - Input(AC)-
Number of Channels1
TypeDC-DC
Switch tube (built-in/external)Built-in
Output Voltage-
Output Current150mA
Operating Temperature-40℃~+85℃
FeaturesBuilt-in soft-start;Over-Temperature Protection (OTP);Short Circuit Protection
Topology-
Constant Current Accuracy-
Voltage - Input(DC)2.9V~4.5V
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Introduction

AI Translation

The LTC3218 is a low-noise, high-current charge pump DC/DC converter capable of driving high current LEDs at up to 400mA from a 2.9V to 4.5V input. A low external parts count (one flying capacitor, two programming resistors and two bypass capacitors at VIN and CPO) make the LTC3218 ideally suited for small, battery-powered applications. Built-in soft-start circuitry prevents excessive inrush current during start-up. High switching frequency enables the use of small external capacitors. A built-in 2-second timer protects the LED during flash mode. Output current level is programmed by an external resistor. LED current is regulated using an internal high side 220mΩ sense resistor. Automatic mode switching optimizes efficiency by monitoring the voltage across the charge pump and switching modes only when dropout is detected. The part is available in a low profile 3mm × 2mm 10-lead DFN package.

Features

AI Translation
  • Low Noise Constant-Frequency Operation
  • Multi-Mode Operation: 1x or 2x Boost Mode
  • Automatic Mode Switching
  • High Output Current: 150mA (Continuous), 400mA (Pulsed) From Li-Ion/Polymer Input
  • 2-Second Flash Current Timeout for LED Protection
  • Automatic Soft-Start
  • Output Disconnect
  • No Inductors
  • 220mΩ Internal High Side Current Sense Resistor
  • Single Resistor Programming Capability
  • Tiny Application Circuit (3mm×2mm DFN Package, All Components < 1mm High)

Applications

AI Translation
  • LED Torch/Flash Supply for DSCs/Cellphones