Specification	LTC3218EDDB#TRMPBF

Current - Output / Channel	150 mA
Frequency	1 MHz
Internal Switch(s)	True
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	85 C
Operating Temperature [Min]	-40 ¯C
Package / Case	10-WFDFN Exposed Pad
Supplier Device Package	10-DFN (3x2)
Topology	Switched Capacitor (Charge Pump)
Type	DC DC Regulator
Voltage - Output	5.3 V
Voltage - Supply (Max) [Max]	4.5 V
Voltage - Supply (Min) [Min]	2.9 V

LTC3218 Series

Part	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Topology	Voltage - Supply (Min) [Min]	Type	Number of Outputs	Frequency	Current - Output / Channel	Supplier Device Package	Package / Case	Voltage - Output	Voltage - Supply (Max) [Max]	Contents	Utilized IC / Part	Voltage - Input [Min]	Voltage - Input [Max]	Outputs and Type
Analog Devices Inc./Maxim Integrated LTC3218EDDB#TRMPBF	Surface Mount	85 C	-40 ¯C	Switched Capacitor (Charge Pump)	2.9 V	DC DC Regulator	1	1 MHz	150 mA	10-DFN (3x2)	10-WFDFN Exposed Pad	5.3 V	4.5 V
Analog Devices Inc./Maxim Integrated LTC3218EDDB#TRPBF	Surface Mount	85 C	-40 ¯C	Switched Capacitor (Charge Pump)	2.9 V	DC DC Regulator	1	1 MHz	150 mA	10-DFN (3x2)	10-WFDFN Exposed Pad	5.3 V	4.5 V
Analog Devices Inc./Maxim Integrated DC1030A														Board(s)	LTC3218	2.9 V	4.5 V	1 Non-Isolated Output

Pricing

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

Distributor	Package	Quantity	$	Updated

Digikey	N/A	628	$ 6.24	1m+

Description

General part information

LTC3218 Series

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 VINand 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.ApplicationsLED Torch/Flash Supply for DSCs/Cellphones

Documents

Technical documentation and resources

R415 Reliability Data

Reliability Data

LTC3218EDDB#TRMPBF | Datasheet

Datasheet