LTC3861-1 Buck Controller overview
Description
Manufacturer
Category
Sub-Category
LTC3861-1 is a 2 channel, 12 phase sync Buck Controller. The maximum input voltage ranges from 3.00 V to 24.00 V and output current goes up to 60.00 A.
The Controller features adjustable 2250 kHz switching frequency which results in a typical inductor size of 0.0 uH and a peak efficiency of %. The LTC3861-1 is available in 1 package option(s): QFN-32 .
Parameter and features overview
Parameter | Value | Replacement Search Filter |
Nr. of Channel | 2 | |
V-IN min. | 3.00 V | |
V-IN max. | 24.00 V | |
I-OUT? | 60.00 A | |
V-OUT min. | 0.60 V | |
V-OUT max. | 5.50 V | |
V-OUT | adjustable | |
V-OUT programmable | ||
sync/non-sync | sync | |
Frequency typ. | 2250 kHz | |
Frequency adj. | adjustable | |
Frequency adj. min. | ||
Frequency adj. max. | 2250 kHz | |
ext.clock sync. | ![]() |
|
ext.clock Frequency min. | ||
ext.clock Frequency max. | 2250 kHz | |
Softstart | ||
Softstart adjustable | ||
Tracking | ![]() |
|
Power Good (PG) | ||
Enable | ||
Operating min. | ||
Operating max. | ||
Junction min. | ||
Junction max. | ||
thermal shutdown typ. | ||
Inductor size typ. | ||
Automotive AEC-Q100 | ||
Light-Load Mode | ||
Single/ Multiphase | multi | |
Nr. of Phases | 12 | |
Peak Efficiency | ||
component count min. | ||
current limit adjustable | ||
Nr.of package options | 1 | |
CSP | ||
SOT | ||
MSOP | ||
QFN/DFN | QFN-32 | |
SO/SOIC | ||
SOP | ||
DIP |
LTC3861-1 Datasheet
Link to the most up-to-date LTC3861-1 datasheet and the product page for EVM, tools and support information.
LTC3861-1 inventory, samples and price


Available Distributors with stock: 0
no online Distributor with LTC3861 stock available
Available Distributors with stock: 0
no online Distributor with LTC3861 stock available
Table with equivalents and alternatives
The following Buck Controller are similar to LTC3861-1. Or, compare LTC3861-1 side-by-side with other Buck Controller via the Comparison function.
Inductor suggestions
Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC3861-1.
V-IN max. 24 V, I-OUT 60 A, V-OUT min. 0.6 V, Frequency typ. 2250 kHz
Order Code | Spec | L (µH) | IR (A) | ISAT (A) | RDC (mΩ) | L x W x H (mm) |