ISL91110 Buck-Boost Converter Overview
Description
ISL91110 is a 5.50 V, 3.00 A output current sync Buck-Boost Converter from . The 1.80 V to 5.50 V input range can be converted into a 1.00 V to 5.20 V output voltage.
The Buck-Boost Converter features fixed 2500 kHz switching frequency, requires a typical inductor size of 1.0 µH and provides a peak efficiency of 96 %. ISL91110 circuitry consists typically of 6 external components and is available in 1 package option(s): CSP-25 .
Parameter and feature overview with replacement search
For ISL91110 replacement search, 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. | 1.80 V | |
| V-IN max. | 5.50 V | |
| I-OUT? | 3.00 A | |
| V-OUT min. | 1.00 V | |
| V-OUT max. | 5.20 V | |
| V-OUT fixed | adjustable | |
| V-OUT programmable |  |
|
| sync/non-sync | sync | |
| Frequency typ. | 2500 kHz | |
| Frequency adjustable | fixed | |
| Frequency adjustable min. | ||
| Frequency adjustable max. | ||
| ext.clock sync |  |
|
| Frequency sync. min. | 2500 kHz | |
| Frequency sync. max. | 3250 kHz | |
| Softstart | |
|
| Softstart adjustable | |
|
| Tracking | |
|
| PG/Power OK | |
|
| Quiescent current max. | 60 µA | |
| Operating min. | -40 °C | |
| Operating max. | 85 °C | |
| Junction min. | ||
| Junction max. | 125 °C | |
| thermal shutdown typ. | 155 °C | |
| Inductor size typ. | 1.0 µH | |
| Automotive AEC-Q100 | |
|
| Light-Load Mode | |
|
| Topology | Buck-Boost | |
| Peak Efficiency | 96 % | |
| Component count min. | 6 | |
| current limit adjustable | |
|
| LBI/LBO | |
|
| Nr. of package options | 1 | |
| CSP | CSP-25 | |
| SOT | ||
| MSOP | ||
| QFN | ||
| SO/SOIC | ||
| SOP |
Charts and pictures
ISL91110 Datasheet
Link to the most up-to-date ISL91110 datasheet and the product page for EVM, tools and support information.
ISL91110 Distributor price breaks and sample stock
ISL91110 prices and available buy online distributors. Optional, check regional sources for price and inventory: for Russia via efind, for South Korea via ICPart, for Japan via ICBAIBAI, for China via IC5858 or International via IC2IC.
Available Distributors with stock: 4
DIGI-KEY (6)
| Product | Stock | Price | Buy | ||||||||||
| ISL91110IIAZ-T7A | 0 |
| Buy Now | ||||||||||
| ISL91110IIAZ-T7A | 230 |
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| ISL91110IIAZ-T7A | 230 |
| Buy Now | ||||||||||
| ISL91110II2AZ-T7A | 0 |
| Buy Now | ||||||||||
| ISL91110II2AZ-T7A | 219 |
| Buy Now | ||||||||||
| ISL91110II2AZ-T7A | 219 |
| Buy Now | ||||||||||
| ISL91110IINZ-T7A | 0 |
| Buy Now | ||||||||||
| ISL91110IINZ-T7A | 178 |
| Buy Now | ||||||||||
| ISL91110IINZ-T7A | 178 |
| Buy Now | ||||||||||
| ISL91110II2AZ-T | 0 |
| Buy Now | ||||||||||
| ISL91110IIAZ-T | 0 |
| Buy Now | ||||||||||
| ISL91110IINZ-T | 0 |
| Buy Now | ||||||||||
| ISL91110IR2AZ-T | 0 |
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| ISL91110IRAZ-T | 0 |
| Buy Now | ||||||||||
| ISL91110IRNZ-T | 0 |
| Buy Now | ||||||||||
| ISL91110IR2AZ-T7A | 0 |
| Buy Now | ||||||||||
| ISL91110IRAZ-T7A | 0 |
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| ISL91110IRNZ-T7A | 0 |
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| ISL91110IIA-EVZ | 0 |
| Buy Now |
Element14 (1)
| Product | Stock | Price | Buy | ||||||||||||
| ISL91110IIAZ-T7A | 190 |
| Buy Now |
FARNELL-ELEMENT14 (2)
Mouser-Electronics (4)
Available Distributors without stock: 5
AVNET-AMERICAS (0)
AVNET-ASIA (0)
AVNET-EUROPE (0)
FUTURE (0)
NEWARK (0)
Available Distributors with stock: 0
Equivalents and alternatives
The following Buck-Boost DC/DC Converter are similar to ISL91110. Optional, compare ISL91110 side-by-side with other selected Buck-Boost Converter via the Comparison function.
| Variation | Compare | Product | Manufacturer | Package | |
| 25% | TPS63020 |  TPS63020 product overview |
Texas Instruments | QFN-14 | |
| 25% | TPS63020-Q1 | TPS63020-Q1 product overview |
Texas Instruments | QFN-14 |
Inductor suggestions
Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of ISL91110.
| Order Code | Spec | L (µH) | IR (A) | ISAT (A) | RDC (mΩ) | L x W x H (mm) |
| 74402500030 | 0.3 | 3.9 | 5.7 | 15.00 | 2.8 x 2.8 x 3 | |
| 74404300033 | 0.3 | 4.0 | 6.0 | 8.00 | 4.8 x 4.8 x 3 | |
| 74406800024 | 0.2 | 4.1 | 5.8 | 15.00 | 8 x 8 x 1.2 | |
| 744383230033 | 0.3 | 3.4 | 6.2 | 29.00 | 2.5 x 2 x 1 | |
| 74479276124 | 0.2 | 3.6 | 5.4 | 19.00 | 2 x 1.6 x 1 | |
| 74479976124 | 0.2 | 3.5 | 4.0 | 15.00 | 2 x 1.6 x 0.5 | |
| 74479976133 | 0.3 | 3.4 | 3.7 | 18.00 | 2 x 1.6 x 0.5 | |
| 784383230033 | 0.3 | 3.4 | 6.2 | 29.00 | 2.5 x 2 x 1 |
