Key facts
- Brand
- Linear Technology
- Model
- LTC3809
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-08
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Linear Technology LTC3809 Synchronous DC/DC Controller Datasheet
The LTC3809 is a synchronous step‑down switching regulator controller that operates without a current‑sense resistor and offers low EMI, spread‑spectrum modulation, and selectable burst‑mode operation. It supports an input voltage range of –0.3 V to 10 V and a switching frequency from 250 kHz to 750 kHz.
The document includes absolute maximum ratings, detailed electrical characteristics, pin descriptions, functional diagrams, operation modes, package dimensions, and typical application circuits. It also lists recommended part numbers for related devices and provides mechanical drawing information for the DFN and MSOP packages.
Linear Technology LTC3809 specifications
| Input Supply Voltage | -0.3 V to 10 V |
|---|---|
| Switching Frequency Range | 250 kHz to 750 kHz |
| SW Voltage Rating | -2 V to Viy + 1 V (10 V Max) |
Source: Linear Technology LTC3809 Synchronous DC/DC Controller Datasheet
All Linear Technology LTC3809 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the operating frequency range of the LTC3809?
The LTC3809 can be programmed to operate from 250 kHz up to 750 kHz.
From: Linear Technology LTC3809 Synchronous DC/DC Controller Datasheet
How many pins does the LTC3809 have?
The device has ten pins, numbered Pin 1 through Pin 10.
From: Linear Technology LTC3809 Synchronous DC/DC Controller Datasheet
What is the input voltage range for the LTC3809?
The LTC3809 operates with an input voltage from 2.75 V up to 9.8 V.
From: Linear Technology LTC3809 Synchronous Step‑Down Switching Regulator Controller Datasheet
How is Burst Mode selected on the LTC3809?
Burst Mode is selected by tying the SYNC/MODE pin to V IN.
From: Linear Technology LTC3809 Synchronous Step‑Down Switching Regulator Controller Datasheet