Key facts
- Brand
- Linear Technology
- Model
- LT3470
- Category
- Power Management
- Documents
- 3
- Languages
- EN
- Last added
- 2023-10-17
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LT3470 40V Micropower SOT-23 Buck Regulator
This document is a Quick Start Guide for Demonstration Circuit 716B, which features the LT3470 40V Micropower SOT-23 Buck Regulator. The circuit is optimized for a 5V output at up to 200mA load current with an input voltage range of 7V to 40V. The LT3470 IC includes integrated boost and catch diodes and operates with high efficiency up to 82% at 12V input.
Read onlineLinear Technology LT3470 specifications
| Output Voltage | 5V |
|---|---|
| Max Load Current | 200mA |
| Input Voltage Range | 7V to 40V |
| Max Efficiency | 82% |
| Package Type | SOT-23 ThinSOT |
All Linear Technology LT3470 documents by type
The shortest path to a working setup, usually only a few pages.
How to use the product for one specific task, with worked examples.
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum input voltage for the LT3470?
The absolute maximum voltage on VIN is 40V.
What is the maximum input voltage for this demonstration circuit?
The input voltage must not exceed 40V to prevent damage to the IC.
What is the maximum input voltage and load current for the LT3470?
The device accepts an input voltage from 4V to 40V and delivers up to 200mA to a load.
From: Design Note 373: LT3470 ThinSOT Micropower Buck Regulator Low Output Ripple Application Note
How much current does the LT3470 consume with no load at a 12V input?
It consumes merely 26uA with no load and a 12V input.
From: Design Note 373: LT3470 ThinSOT Micropower Buck Regulator Low Output Ripple Application Note
How do I enable shutdown mode on the LT3470?
Tie the SHDN pin to ground to put the LT3470 into shutdown mode; applying 2 V or more enables normal operation.
From: Linear Technology LT3470 Micropower Buck Regulator Datasheet
What is the quiescent current of the LT3470 in regulation?
The device draws only 26 µA of quiescent current when regulating (e.g., 12 V IN to 3.3 V OUT).
From: Linear Technology LT3470 Micropower Buck Regulator Datasheet