BD9876 Buck Converter overview

Description

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BD9876 is a 42.00 V non-sync Buck Converter from with 3.00 A output current. The maximum 42.00 V input voltage can be regulated down into a 1.00 V to 29.40 V output voltage.

It requires are a typical inductor size of 15.00 µH, a typical external component count of 9 and achieves a peak efficiency of 91 %. Further BD9876 characteristics are a fixed 300 kHz switching frequency and 1 available package option(s): HTSOP-8 .

For the BD9876 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.

ParameterValueReplacement
Search Filter
V-IN min. 7.00 V
V-IN max. 42.00 V
I-OUT? 3.00 A
V-OUT min. 1.00 V
V-OUT max. 29.40 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync non-sync
Frequency typ. 300 kHz
Frequency fixed
Frequency selectable
ext.clock sync. yes
Frequency adj./ ext.clock min. 200 kHz
Frequency adj./ ext.clock max 500 kHz
Softstart yes
Softstart adjustable no
Tracking no
PG/Power OK no
Quiescent current max. 2000 µA
Operating min. -40 °C
Operating max. 105 °C
Junction min.
Junction max.
thermal shutdown typ. 150 °C
Inductor size typ. 15.00 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Buck
Peak Efficiency 91 %
Component count min. 9
current limit adjustable no
Nr.of packages 1
CSP
SC70
SOT
MSOP
QFN/DFN
SO/SOIC
SOP HTSOP-8
DIP
TO
DDPAK

BD9876 Datasheet

Link to the most up-to-date BD9876 datasheet and the product page for EVM, tools and support information.

BD9876

BD9876 Sample stock and distributor price breaks

BD9876 prices and online available distributors.

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Available Distributors with stock: 0

no online Distributor with BD9876 stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to BD9876. Optional, compare BD9876 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% NJW4154 NJW4154 product overviewNJW4154 product overview New Japan Radio TO252-5, HSOP-8
10% MAX16907 MAX16907 product overviewMAX16907 product overview Maxim TSSOP-EP-16, TQFN-16
10% A7986A A7986A product overviewA7986A product overview ST HSOP-8
25% LT3434 LT3434 product overviewLT3434 product overview Linear Technology TSSOP-16
25% LT3435 LT3435 product overviewLT3435 product overview Linear Technology TSSOP-16
25% MAX16936 MAX16936 product overviewMAX16936 product overview Maxim TQFN-32
50% IFX91041EJ V IFX91041EJ V product overviewIFX91041EJ V product overview Infineon PG-DSO-8
50% TLE8366 TLE8366 product overviewTLE8366 product overview Infineon DSO-8
50% IXD3250-3 IXD3250-3 product overviewIXD3250-3 product overview IXYS SOP-8
50% IXD3250-5 IXD3250-5 product overviewIXD3250-5 product overview IXYS SOP-8
50% IXD3251-3 IXD3251-3 product overviewIXD3251-3 product overview IXYS SOP-8
50% IXD3251-5 IXD3251-5 product overviewIXD3251-5 product overview IXYS SOP-8
50% MAX16974 MAX16974 product overviewMAX16974 product overview Maxim TSSOP-EP-16, TQFN-16
50% MAX16977 MAX16977 product overviewMAX16977 product overview Maxim TSSOP-EP-16, TQFN-16
50% MAX5082 MAX5082 product overviewMAX5082 product overview Maxim TQFN-16
50% MAX5083 MAX5083 product overviewMAX5083 product overview Maxim TQFN-16
50% MAX5088 MAX5088 product overviewMAX5088 product overview Maxim TQFN-16
50% MAX5089 MAX5089 product overviewMAX5089 product overview Maxim TQFN-16
50% MAX5090 MAX5090 product overviewMAX5090 product overview Maxim TQFN-16
50% MP2377 MP2377 product overviewMP2377 product overview MPS SOIC-8
50% CS51411 CS51411 product overviewCS51411 product overview ON Semiconductor SOIC-8, DFN-18
50% CS51413 CS51413 product overviewCS51413 product overview ON Semiconductor SOIC-8, DFN-18
50% NCP1547 NCP1547 product overviewNCP1547 product overview ON Semiconductor SOIC-8, DFN-18
50% NCV51411 NCV51411 product overviewNCV51411 product overview ON Semiconductor SOIC-8, DFN-18
50% NCV8842 NCV8842 product overviewNCV8842 product overview ON Semiconductor DFN-18
50% NCV8843 NCV8843 product overviewNCV8843 product overview ON Semiconductor SOIC-8, DFN-18
50% NCV890201 NCV890201 product overviewNCV890201 product overview ON Semiconductor DFN-10
50% NCV890231 NCV890231 product overviewNCV890231 product overview ON Semiconductor SOIC-8
50% A7985A A7985A product overviewA7985A product overview ST HSOP-8
50% LM27341 LM27341 product overviewLM27341 product overview Texas Instruments SON-10, MSOP-10
50% LM27341-Q1 LM27341-Q1 product overviewLM27341-Q1 product overview Texas Instruments SON-10, MSOP-10
50% LM27342 LM27342 product overviewLM27342 product overview Texas Instruments SON-10, MSOP-10
50% LM27342-Q1 LM27342-Q1 product overviewLM27342-Q1 product overview Texas Instruments SON-10, MSOP-10
50% LMR12015 LMR12015 product overviewLMR12015 product overview Texas Instruments SON-10
50% LMR12020 LMR12020 product overviewLMR12020 product overview Texas Instruments SON-10
50% XC9250-3 XC9250-3 product overviewXC9250-3 product overview Torex SOP-8
50% XC9250-5 XC9250-5 product overviewXC9250-5 product overview Torex SOP-8
50% XC9251-3 XC9251-3 product overviewXC9251-3 product overview Torex SOP-8
50% XC9251-5 XC9251-5 product overviewXC9251-5 product overview Torex SOP-8
50% XC9270-C XC9270-C product overviewXC9270-C product overview Torex SOP-8
50% XC9270-D XC9270-D product overviewXC9270-D product overview Torex SOP-8
50% XC9271-C XC9271-C product overviewXC9271-C product overview Torex SOP-8
50% XC9271-D XC9271-D product overviewXC9271-D product overview Torex SOP-8

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of BD9876.

V-IN max. 42 V, I-OUT 3 A, V-OUT min. 1 V, Frequency typ. 300 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404054033 3.3 3.4 4.3 24.00 5 x 5 x 4
74404063033 3.3 3.5 4.5 25.00 6 x 6 x 2.8
74404064033 3.3 3.7 6.5 21.00 6 x 6 x 4.5
74404084033 3.3 4.4 7.1 17.00 8 x 8 x 4.2
7440650033 3.3 5.3 4.7 15.00 10 x 10 x 3.1
7440660035 3.5 5.8 6.4 11.50 10 x 10 x 4.1
744071039 3.9 4.9 4.5 13.00 8 x 8 x 4.6
744314330 3.3 9.0 8.0 9.00 7 x 6.9 x 5
744316330 3.3 5.8 5.8 18.50 5.5 x 5.3 x 4.3
7443552430 4.3 8.0 8.0 14.10 10.5 x 10.2 x 4.2
74438356033 3.3 3.6 5.5 39.90 4.1 x 4.1 x 2.1
7447462033 3.3 4.7 4.0 16.00 5.5 x 5.5 x 8.5
7447471033 3.3 7.5 8.0 9.00 10.5 x 10.5 x 11.5
7447713033 3.3 4.6 7.2 20.40 10 x 10 x 3
7447715003 3.3 5.9 7.1 11.50 12 x 12 x 4.5
744772033 3.3 5.0 6.3 9.50 7.8 x 7.8 x 10
744777003 3.3 3.5 4.6 25.00 7.3 x 7.3 x 4.5
7447779003 3.3 3.3 4.5 26.00 7.3 x 7.3 x 4.5
744778003 3.3 3.1 4.1 24.00 7.3 x 7.3 x 3.4
7447789003 3.3 3.4 4.2 24.00 7.3 x 7.3 x 3.5
744787027 2.7 4.4 4.5 13.50 7.8 x 7 x 5
744787039 3.9 3.8 4.0 16.70 7.8 x 7 x 5
784774027 2.7 4.0 8.0 32.00 5.2 x 5.8 x 4.85
784774033 3.3 3.7 7.5 42.00 5.2 x 5.8 x 4.85
784775033 3.3 4.9 4.9 12.00 7 x 7.8 x 5.5
784776033 3.3 6.0 7.0 9.00 9 x 10 x 5.9
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