ADP2105-1,5 Buck Converter overview
Description
ADP2105-1,5 is a 5.50 V sync Buck Converter from with 1.00 A output current. The maximum 5.50 V input voltage can be regulated down into a 1.50 V to 1.50 V output voltage.
It requires are a typical inductor size of 2.40 µH, a typical external component count of 9 and achieves a peak efficiency of 97 %. Further ADP2105-1,5 characteristics are a fixed 1200 kHz switching frequency and 1 available package option(s): QFN-16 .
Parameter overview and features with replacement search
For the ADP2105-1,5 replacement search, please select a main parameter tolerance value and adjust the checkboxes for feature match. The product counter within the button shows the number of available equivalents and a click on the replacement button shows all possible replacements within a parametric overview.
Parameter | Value | Replacement Search Filter |
V-IN min. | 2.70 V | |
V-IN max. | 5.50 V | |
I-OUT? | 1.00 A | |
V-OUT min. | 1.50 V | |
V-OUT max. | 1.50 V | |
V-OUT | 1.500 V | |
V-OUT programmable | ![]() |
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sync/non-sync | sync | |
Frequency typ. | 1200 kHz | |
Frequency | fixed | |
Frequency selectable | ||
ext.clock sync. | ![]() |
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Frequency adj./ ext.clock min. | ||
Frequency adj./ ext.clock max | ||
Softstart | ![]() |
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Softstart adjustable | ![]() |
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Tracking | ![]() |
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PG/Power OK | ![]() |
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Quiescent current max. | 30 µA | |
Operating min. | ||
Operating max. | ||
Junction min. | -40 °C | |
Junction max. | 125 °C | |
thermal shutdown typ. | 140 °C | |
Inductor size typ. | 2.40 µH | |
Inductor suggested by Würth Elektronik | ||
Automotive AEC-Q100 | ![]() |
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Light-Load-Mode | ![]() |
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Topology | Buck | |
Peak Efficiency | 97 % | |
Component count min. | 9 | |
current limit adjustable | ![]() |
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Nr.of packages | 1 | |
CSP | ||
SC70 | ||
SOT | ||
MSOP | ||
QFN/DFN | QFN-16 | |
SO/SOIC | ||
SOP | ||
DIP | ||
TO | ||
DDPAK |
ADP2105-1,5 Datasheet
Link to the most up-to-date ADP2105-1,5 datasheet and the product page for EVM, tools and support information.
ADP2105-1,5 Sample stock and distributor price breaks
ADP2105-1,5 prices and online available distributors.


Available Distributors with stock: 5
DIGI-KEY (6)
Product | Stock | Price | Buy | ||||||||
ADP2105ACPZ-3.3-R7 | 0 |
| Buy Now | ||||||||
ADP2105ACPZ-3.3-R7 | 109 |
| Buy Now | ||||||||
ADP2105ACPZ-3.3-R7 | 109 |
| Buy Now | ||||||||
ADP2105ACPZ-1.2-R7 | 0 |
| Buy Now | ||||||||
ADP2105ACPZ-1.2-R7 | 28 |
| Buy Now | ||||||||
ADP2105ACPZ-1.2-R7 | 28 |
| Buy Now | ||||||||
ADP2105ACPZ-1.8-R7 | 0 |
| Buy Now | ||||||||
ADP2105ACPZ-1.8-R7 | 12 |
| Buy Now | ||||||||
ADP2105ACPZ-1.8-R7 | 12 |
| Buy Now | ||||||||
ADP2105ACPZ-R7 | 0 |
| Buy Now | ||||||||
ADP2105ACPZ-R7 | 0 |
| Buy Now | ||||||||
ADP2105ACPZ-R7 | 0 |
| Buy Now | ||||||||
ADP2105-EVALZ | 0 |
| Buy Now | ||||||||
ADP2105-1.8-EVALZ | 0 |
| Buy Now | ||||||||
ADP2105-BL1-EVZ | 0 |
| Buy Now | ||||||||
ADP2105ACPZ-1.5-R7 | 0 |
| Buy Now | ||||||||
ADP2105ACPZ-1.5-R7 | 0 |
| Buy Now |
Element14 (4)
Product | Stock | Price | Buy | ||||||||||||||||
ADP2105-1.8-EVALZ | 0 |
| Buy Now | ||||||||||||||||
ADP2105ACPZ-1.2-R7 | 2686 |
| Buy Now | ||||||||||||||||
ADP2105ACPZ-1.2-R7 | 2686 |
| Buy Now | ||||||||||||||||
ADP2105ACPZ-1.8-R7 | 0 |
| Buy Now | ||||||||||||||||
ADP2105ACPZ-1.8-R7 | 0 |
| Buy Now | ||||||||||||||||
ADP2105ACPZ-3.3-R7 | 1288 |
| Buy Now | ||||||||||||||||
ADP2105ACPZ-3.3-R7 | 1288 |
| Buy Now | ||||||||||||||||
ADP2105-EVALZ | 0 |
| Buy Now |
FARNELL-ELEMENT14 (4)
Mouser-Electronics (4)
NEWARK (2)
Available Distributors without stock: 3
AVNET-AMERICAS (0)
AVNET-ASIA (0)
AVNET-EUROPE (0)
Available Distributors with stock: 0
List of equivalents and alternatives
The following DC/DC Buck Converter are similar to ADP2105-1,5. Optional, compare ADP2105-1,5 side-by-side with other Buck Converter via the Comparison function.
Variation | Compare | Product | Manufacturer | Package | |
0% | ADP2106-1,5 | ![]() |
Analog Devices | QFN-16 | |
0% | ADP2107-1,5 | ![]() |
Analog Devices | QFN-16 | |
0% | MAX1742-1.5 | ![]() |
Maxim | QSOP-16 | |
0% | MAX1842-1.5 | ![]() |
Maxim | QSOP-16 | |
0% | RP506x-D-E-1.5 | ![]() |
Ricoh | DFN-10 | |
0% | RP506x-A-B-1.5 | ![]() |
Ricoh | DFN-10 |
Inductor suggestions
Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of ADP2105-1,5.
Order Code | Spec | L (µH) | IR (A) | ISAT (A) | RDC (mΩ) | L x W x H (mm) |
744025002 | 2.2 | 1.8 | 2.4 | 57.00 | 2.8 x 2.8 x 3 | |
744025003 | 3.3 | 1.5 | 1.8 | 85.00 | 2.8 x 2.8 x 3 | |
744031002 | 2.5 | 1.5 | 1.3 | 50.00 | 3.8 x 3.8 x 1.8 | |
74404024022 | 2.2 | 1.8 | 2.0 | 80.00 | 2.5 x 2 x 1.2 | |
74404024033 | 3.3 | 1.4 | 1.3 | 120.00 | 2.5 x 2 x 1.2 | |
74404032022 | 2.2 | 1.8 | 1.7 | 50.00 | 3 x 3 x 1.5 | |
74404032033 | 3.3 | 1.5 | 1.5 | 70.00 | 3 x 3 x 1.5 | |
74404041033 | 3.3 | 1.8 | 2.1 | 69.00 | 4 x 4 x 1.2 | |
7440420027 | 2.7 | 2.0 | 2.2 | 47.00 | 4.8 x 4.8 x 2 | |
744042003 | 3.3 | 2.0 | 1.8 | 50.00 | 4.8 x 4.8 x 2 | |
7440430022 | 2.2 | 2.5 | 2.4 | 27.00 | 4.8 x 4.8 x 3 | |
7440430027 | 2.7 | 2.4 | 2.0 | 25.00 | 4.8 x 4.8 x 3 | |
744043003 | 3.3 | 2.2 | 1.8 | 30.00 | 4.8 x 4.8 x 3 | |
744052003 | 3.0 | 2.2 | 2.4 | 40.00 | 5.8 x 5.8 x 2 | |
744053003 | 3.0 | 2.8 | 2.5 | 20.00 | 5.8 x 5.8 x 3 | |
744062003 | 3.3 | 2.8 | 2.5 | 20.00 | 6.8 x 6.8 x 2.5 | |
7440680027 | 2.7 | 2.2 | 1.9 | 52.00 | 8 x 8 x 1.2 | |
7440680033 | 3.3 | 2.0 | 1.8 | 61.00 | 8 x 8 x 1.2 | |
7440690033 | 3.3 | 2.6 | 2.3 | 42.00 | 8 x 8 x 1.5 | |
74438322022 | 2.2 | 1.3 | 2.2 | 252.00 | 2.5 x 2 x 0.8 | |
74438323022 | 2.2 | 1.3 | 2.5 | 147.00 | 2.5 x 2 x 1 | |
74438323033 | 3.3 | 1.3 | 2.1 | 220.00 | 2.5 x 2 x 1 | |
74438343022 | 2.2 | 1.1 | 2.5 | 225.00 | 2.5 x 1.6 x 0.6 | |
74479275222 | 2.2 | 1.3 | 1.7 | 166.00 | 2 x 1.25 x 1 | |
74479276222 | 2.2 | 1.4 | 1.8 | 135.00 | 2 x 1.6 x 1 | |
74479276222C | 2.2 | 1.6 | 2.5 | 112.00 | 2 x 1.25 x 1 | |
74479287222 | 2.2 | 1.5 | 2.5 | 132.00 | 2.5 x 2 x 1 | |
74479888222 | 2.2 | 1.2 | 1.4 | 200.00 | 2.5 x 2 x 1 | |
74479889222 | 2.2 | 1.3 | 1.7 | 250.00 | 2.5 x 2 x 1.2 | |
74479889233 | 3.3 | 1.3 | 1.3 | 250.00 | 2.5 x 2 x 1.2 | |
78438322022 | 2.2 | 1.3 | 2.2 | 252.00 | 2.5 x 2 x 0.8 | |
78438323022 | 2.2 | 1.3 | 2.5 | 147.00 | 2.5 x 2 x 1 | |
78438323033 | 3.3 | 1.3 | 2.1 | 220.00 | 2.5 x 2 x 1 |