ACT4455 Buck Converter overview

Description

Manufacturer
 
Category
Sub-Category

ACT4455 is a 36.00 V non-sync Buck Converter from with 5.00 A output current. The maximum 36.00 V input voltage can be regulated down into a 0.82 V to 12.00 V output voltage.

It requires are a typical inductor size of 18.00 µH, a typical external component count of 12 and achieves a peak efficiency of 91 %. Further ACT4455 characteristics are a fixed 200 kHz switching frequency and 1 available package option(s): SOP-8EP .

For the ACT4455 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. 7.50 V
V-IN max. 36.00 V
I-OUT? 5.00 A
V-OUT min. 0.82 V
V-OUT max. 12.00 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync non-sync
Frequency typ. 200 kHz
Frequency fixed
Frequency selectable
ext.clock sync. no
Frequency adj./ ext.clock min.
Frequency adj./ ext.clock max
Softstart yes
Softstart adjustable no
Tracking no
PG/Power OK no
Quiescent current max. 920 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min. -40 °C
Junction max. 150 °C
thermal shutdown typ. 150 °C
Inductor size typ. 18.00 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Buck
Peak Efficiency 91 %
Component count min. 12
current limit adjustable no
Nr.of packages 1
CSP
SC70
SOT
MSOP
QFN/DFN
SO/SOIC
SOP SOP-8EP
DIP
TO
DDPAK

ACT4455 Datasheet

Link to the most up-to-date ACT4455 datasheet and the product page for EVM, tools and support information.

ACT4455

ACT4455 Sample stock and distributor price breaks

ACT4455 prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 1

Mouser-Electronics (1)

ProductStockPriceBuy
ACT4455YH-T1418
11.88 USD
101.52 USD
1001.21 USD
5001.06 USD
10000.88 USD
40000.79 USD
80000.77 USD
Buy Now

Available Distributors without stock: 1

DIGI-KEY (0)

ProductStockPriceBuy
ACT4455YH-T0
40000.00 USD
Buy Now
ACT4455YH-T0
10.00 USD
Buy Now
ACT4455YH-T0
10.00 USD
Buy Now
EA4455YH0
10.00 USD
Buy Now

Available Distributors with stock: 0

no online Distributor with ACT4455 stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to ACT4455. Optional, compare ACT4455 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% NJW4158 NJW4158 product overviewNJW4158 product overview New Japan Radio TO220
50% ACT4070B ACT4070B product overviewACT4070B product overview Active Semi SOP-8
50% ACT4303 ACT4303 product overviewACT4303 product overview Active Semi SOP-8
50% ACT4523 ACT4523 product overviewACT4523 product overview Active Semi SOP-8EP
50% ACT4523A ACT4523A product overviewACT4523A product overview Active Semi SOP-8EP
50% ACT4533 ACT4533 product overviewACT4533 product overview Active Semi SOP-8EP
50% ACT4533A ACT4533A product overviewACT4533A product overview Active Semi SOP-8EP
50% ACT4533B ACT4533B product overviewACT4533B product overview Active Semi SOP-8EP
50% A4403 A4403 product overviewA4403 product overview Allegro QFN-16
50% AOZ1212AI AOZ1212AI product overviewAOZ1212AI product overview Alpha Omega SOIC-8
50% AOZ1212DI AOZ1212DI product overviewAOZ1212DI product overview Alpha Omega DFN-8
50% AOZ1242AI AOZ1242AI product overviewAOZ1242AI product overview Alpha Omega SOIC-8
50% AOZ1242DI AOZ1242DI product overviewAOZ1242DI product overview Alpha Omega DFN-8
50% ADP2303 ADP2303 product overviewADP2303 product overview Analog Devices SOIC-8
50% AP3203 AP3203 product overviewAP3203 product overview BCDSemi PSOP-8
50% AP1510 AP1510 product overviewAP1510 product overview Diodes SOP-8L
50% AP1530 AP1530 product overviewAP1530 product overview Diodes SO-8
50% AP1538 AP1538 product overviewAP1538 product overview Diodes SOP-8
50% AP1539 AP1539 product overviewAP1539 product overview Diodes SOP-8
50% MAX16907 MAX16907 product overviewMAX16907 product overview Maxim TSSOP-EP-16, TQFN-16
50% MAX16936 MAX16936 product overviewMAX16936 product overview Maxim TQFN-32
50% MP1583 MP1583 product overviewMP1583 product overview MPS PDIP-8, SOIC-8
50% MP1593 MP1593 product overviewMP1593 product overview MPS SOIC-8
50% MP2355 MP2355 product overviewMP2355 product overview MPS SOIC-8
50% MP2363 MP2363 product overviewMP2363 product overview MPS PDIP-8, SOIC-8
50% MP2365 MP2365 product overviewMP2365 product overview MPS SOIC-8
50% MP2372 MP2372 product overviewMP2372 product overview MPS SOIC-8
50% MP2377 MP2377 product overviewMP2377 product overview MPS SOIC-8
50% MP2380 MP2380 product overviewMP2380 product overview MPS SOIC-8
50% MP2467 MP2467 product overviewMP2467 product overview MPS SOIC-8E
50% MP24943 MP24943 product overviewMP24943 product overview MPS SOIC-8E
50% MP2497 MP2497 product overviewMP2497 product overview MPS SOIC-8E
50% MP2497-A MP2497-A product overviewMP2497-A product overview MPS SOIC-8E
50% MP28373 MP28373 product overviewMP28373 product overview MPS SOIC-8E
50% NJW4154 NJW4154 product overviewNJW4154 product overview New Japan Radio TO252-5, HSOP-8
50% LA5744 LA5744 product overviewLA5744 product overview ON Semiconductor 220-5HK
50% LA5744MP LA5744MP product overviewLA5744MP product overview ON Semiconductor SMP-5
50% LA5744TP LA5744TP product overviewLA5744TP product overview ON Semiconductor TP5HFA
50% LA5756 LA5756 product overviewLA5756 product overview ON Semiconductor 220-5HK
50% LA5759 LA5759 product overviewLA5759 product overview ON Semiconductor 220-5HK
50% LA5774 LA5774 product overviewLA5774 product overview ON Semiconductor 220-5HK
50% LA5774MP LA5774MP product overviewLA5774MP product overview ON Semiconductor SMP-5
50% LV58063MC LV58063MC product overviewLV58063MC product overview ON Semiconductor SOP-8
50% LV58063MX LV58063MX product overviewLV58063MX product overview ON Semiconductor MFP-8
50% LV5980MC LV5980MC product overviewLV5980MC product overview ON Semiconductor SOIC-8
50% BD9326 BD9326 product overviewBD9326 product overview Rohm HTSOP-8
50% BD9327 BD9327 product overviewBD9327 product overview Rohm HTSOP-8
50% BD9329 BD9329 product overviewBD9329 product overview Rohm HTSOP-8
50% BD9874 BD9874 product overviewBD9874 product overview Rohm TO220-5
50% BD9876 BD9876 product overviewBD9876 product overview Rohm HTSOP-8
50% SC4525D SC4525D product overviewSC4525D product overview Semtech SOIC-8
50% AAT2688 AAT2688 product overviewAAT2688 product overview Skyworks TQFN-24
50% A7986A A7986A product overviewA7986A product overview ST HSOP-8
50% ST1S14 ST1S14 product overviewST1S14 product overview ST HSOP-8
50% TS2508A TS2508A product overviewTS2508A product overview Taiwan Semi SOP-8
50% TS2509C TS2509C product overviewTS2509C product overview Taiwan Semi SOP-8
50% TS2576 TS2576 product overviewTS2576 product overview Taiwan Semi TO-220-5
50% TS2596 TS2596 product overviewTS2596 product overview Taiwan Semi TO-220-5, SOP-8
50% LM22673 LM22673 product overviewLM22673 product overview Texas Instruments TO263-7, SO-8
50% LM22676 LM22676 product overviewLM22676 product overview Texas Instruments TO263-7
50% LM22676-Q1 LM22676-Q1 product overviewLM22676-Q1 product overview Texas Instruments SO-8
50% LM22678 LM22678 product overviewLM22678 product overview Texas Instruments TO263-7
50% LM22678-Q1 LM22678-Q1 product overviewLM22678-Q1 product overview Texas Instruments TO263-7
50% LM22679 LM22679 product overviewLM22679 product overview Texas Instruments TO263-7
50% LM2599 LM2599 product overviewLM2599 product overview Texas Instruments DDPAK-7, TO-220-7
50% LM2673 LM2673 product overviewLM2673 product overview Texas Instruments DDPAK-7, TO-220-7, VSON-14
50% LM2679 LM2679 product overviewLM2679 product overview Texas Instruments DDPAK-7, TO-220-7, VSON-14
50% TPS5430 TPS5430 product overviewTPS5430 product overview Texas Instruments SO-8
50% TPS5430-Q1 TPS5430-Q1 product overviewTPS5430-Q1 product overview Texas Instruments SO-8
50% TPS5431 TPS5431 product overviewTPS5431 product overview Texas Instruments SO-8
50% TPS5450 TPS5450 product overviewTPS5450 product overview Texas Instruments SO-8
50% TPS5450-Q1 TPS5450-Q1 product overviewTPS5450-Q1 product overview Texas Instruments SO-8
50% RT2805A RT2805A product overviewRT2805A product overview Richtek PSOP-8
50% RT2808A RT2808A product overviewRT2808A product overview Richtek PSOP-8

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of ACT4455.

V-IN max. 36 V, I-OUT 5 A, V-OUT min. 0.82 V, Frequency typ. 200 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404084022 2.2 5.2 7.8 12.00 8 x 8 x 4.2
7440660022 2.2 6.7 6.8 7.70 10 x 10 x 4.1
7440660035 3.5 5.8 6.4 11.50 10 x 10 x 4.1
744071022 2.2 5.4 6.3 10.00 8 x 8 x 4.6
744310200 2.0 6.5 9.0 14.20 7 x 6.9 x 3.3
744311330 3.3 6.5 11.0 17.20 7 x 6.9 x 4
744314200 2.0 11.5 9.0 5.85 7 x 6.9 x 5
744314330 3.3 9.0 8.0 9.00 7 x 6.9 x 5
744316220 2.2 7.5 7.5 11.30 5.5 x 5.3 x 4.3
7443340330 3.3 14.0 8.5 7.50 8.4 x 7.9 x 7.5
7443552280 2.8 9.5 11.0 10.60 10.5 x 10.2 x 4.2
74437349033 3.3 6.0 12.0 19.00 7.3 x 6.6 x 5
7447471022 2.2 8.2 10.0 7.50 10.5 x 10.5 x 11.5
7447471033 3.3 7.5 8.0 9.00 10.5 x 10.5 x 11.5
744750230030 3.0 7.6 11.7 7.00 8.8 x 8.8 x 11
74477003 3.5 8.9 9.6 11.00 12 x 12 x 8
744771002 2.2 10.0 11.0 5.00 12 x 12 x 6
744771003 3.5 9.3 9.0 5.00 12 x 12 x 6
7447713022 2.2 5.1 8.5 16.80 10 x 10 x 3
7447714022 2.2 8.6 9.5 6.80 10 x 10 x 5
7447714033 3.3 7.5 9.0 8.90 10 x 10 x 5
7447715002 2.5 6.8 8.5 8.50 12 x 12 x 4.5
7447715003 3.3 5.9 7.1 11.50 12 x 12 x 4.5
744772022 2.2 6.0 8.0 7.25 7.8 x 7.8 x 10
744772033 3.3 5.0 6.3 9.50 7.8 x 7.8 x 10
744777002 2.2 6.0 6.5 13.00 7.3 x 7.3 x 4.5
7447797250 2.5 8.4 10.5 9.00 10.2 x 10.2 x 4.5
7447798250 2.5 13.7 10.1 4.40 10.2 x 10.2 x 6.4
78477033 3.3 6.6 12.0 14.00 12 x 12 x 8.3
784771022 2.2 7.2 10.5 10.50 12 x 12 x 8.3
784771033 3.3 6.5 9.0 12.00 12 x 12 x 8.3
784775022 2.2 6.0 6.0 8.00 7 x 7.8 x 5.5
784776022 2.2 7.0 8.0 7.00 9 x 10 x 5.9
784776033 3.3 6.0 7.0 9.00 9 x 10 x 5.9
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