Key facts
- Brand
- Linear Technology
- Model
- LT1618
- Category
- DC/DC Converter
- Documents
- 2
- Languages
- EN
- Last added
- 2012-06-05
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LINEAR dn340f Data Sheet
This document is a design note (DN340) detailing application circuits for the Linear Technology LT1618 IC. It explains how to use this boost converter to drive 1W white LEDs with constant current, addressing efficiency and component count challenges associated with standard DC/DC converters.
Read onlineLinear Technology LT1618 specifications
| Maximum peak current limit | 1.5A |
|---|---|
| Switching frequency | 1.4MHz |
| Package type | 10-pin thermally enhanced DFN package |
| Efficiency (Li-ion source) | approximately 70% |
| Efficiency (2-Alkaline Cell Source) | 85% |
| Efficiency (Automotive source) | approximately 70% |
Source: LINEAR dn340f Data Sheet
All Linear Technology LT1618 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum peak current limit of the LT1618?
The monolithic low side switch has a maximum peak current limit of 1.5A.
From: LINEAR dn340f Data Sheet
Can the LT1618 drive LEDs from a single lithium-ion battery?
Yes, it can power a 1W white LED from a single lithium-ion battery with approximately 70% efficiency.
From: LINEAR dn340f Data Sheet
What is the switching frequency of the LT1618?
The LT1618 operates at a fixed switching frequency of 1.4 MHz.
From: Linear Technology LT1618 Step-Up DC/DC Converter Handbook
What is the maximum output voltage the LT1618 can provide?
The device can deliver up to 35 V on its output.
From: Linear Technology LT1618 Step-Up DC/DC Converter Handbook