R1242S-A-B Buck Converter overview

Description

Manufacturer
 
Category
Sub-Category

R1242S-A-B is a 30.00 V sync Buck Converter from with 3.00 A output current. The maximum 30.00 V input voltage can be regulated down into a 0.80 V to 15.00 V output voltage.

It requires are a typical inductor size of 2.20 µH, a typical external component count of 12 and achieves a peak efficiency of 96 %. Further R1242S-A-B characteristics are a adjustable 1000 kHz switching frequency and 1 available package option(s): HSOP-8 .

For the R1242S-A-B 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. 5.00 V
V-IN max. 30.00 V
I-OUT? 3.00 A
V-OUT min. 0.80 V
V-OUT max. 15.00 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync sync
Frequency typ. 1000 kHz
Frequency adjustable
Frequency selectable
ext.clock sync. no
Frequency adj./ ext.clock min. 330 kHz
Frequency adj./ ext.clock max 1000 kHz
Softstart yes
Softstart adjustable no
Tracking no
PG/Power OK no
Quiescent current max. 1200 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min.
Junction max.
thermal shutdown typ. 160 °C
Inductor size typ. 2.20 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Buck
Peak Efficiency 96 %
Component count min. 12
current limit adjustable no
Nr.of packages 1
CSP
SC70
SOT
MSOP
QFN/DFN
SO/SOIC
SOP HSOP-8
DIP
TO
DDPAK

R1242S-A-B Datasheet

Link to the most up-to-date R1242S-A-B datasheet and the product page for EVM, tools and support information.

R1242S-A-B

R1242S-A-B Sample stock and distributor price breaks

R1242S-A-B prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 0

no online Distributor with R1242S stock available

Available Distributors with stock: 3

Mouser Electronics

ProductStockPriceBuy
R1242S001E-E2-FE 992
12.70 $
102.28 $
1001.94 $
2501.83 $
5001.60 $
10001.32 $
20001.18 $
50001.14 $
Buy Now
R1242S001B-E2-FE 45
12.70 $
102.28 $
1001.94 $
2501.83 $
5001.60 $
10001.32 $
20001.18 $
50001.14 $
Buy Now
R1242S001A-E2-FE 970
12.70 $
102.28 $
1001.94 $
2501.83 $
5001.60 $
10001.32 $
20001.18 $
50001.14 $
Buy Now

Rochester Electronics

ProductStockPriceBuy
R1242S001F-E2-FE 3000
10000.91 $
5000.95 $
1000.99 $
251.04 $
11.12 $
Buy Now

Chip1Stop

ProductStockPriceBuy
R1242S001A-E2-FE 75
501.05 $
11.06 $
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R1242S001F-050-BOARD 5
133.30 $
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R1242S001C-E2-FE 48
11.06 $
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R1242S001B-E2-FE 823
500.92 $
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R1242S001D-E2-F 100
501.05 $
11.06 $
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R1242S001F-E2-FE 5
11.08 $
Buy Now

Available Distributors without stock: 3

Arrow Electronics

ProductStockPriceBuy
R1242S001B-E2-FE 0 Buy Now

Digi-Key

ProductStockPriceBuy
R1242S001A-E2-FE 0
10001.17 €
Buy Now
R1242S001B-E2-FE 0
10001.17 €
Buy Now
R1242S001C-E2-FE 0
10001.17 €
Buy Now
R1242S001D-E2-FE 0
10001.17 €
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R1242S001E-E2-FE 0
10001.17 €
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R1242S001F-E2-FE 0
10001.17 €
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R1242S001G-E2-FE 0
10001.17 €
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R1242S001H-E2-FE 0
10001.17 €
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R1242S001F050-EV 0
132.90 €
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Avnet

ProductStockPriceBuy
R1242S001F-E2-FE 0
36300.83 $
18150.85 $
7280.87 $
3650.90 $
3630.91 $
Buy Now

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to R1242S-A-B. Optional, compare R1242S-A-B side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% LT3690 LT3690 product overviewLT3690 product overview Linear Technology QFN-26
0% LTC3609 LTC3609 product overviewLTC3609 product overview Linear Technology QFN-52
0% MIC28500 MIC28500 product overviewMIC28500 product overview Micrel MLF-28
0% MIC28510 MIC28510 product overviewMIC28510 product overview Micrel MLF-28
0% MP9447 MP9447 product overviewMP9447 product overview MPS QFN-20
0% MPQ4470-AEC1 MPQ4470-AEC1 product overviewMPQ4470-AEC1 product overview MPS QFN-20
0% MPQ4470A-AEC1 MPQ4470A-AEC1 product overviewMPQ4470A-AEC1 product overview MPS QFN-20
0% LM20343 LM20343 product overviewLM20343 product overview Texas Instruments HTSSOP-20
0% MP4470 MP4470 product overviewMP4470 product overview MPS QFN-20
0% MP4470A MP4470A product overviewMP4470A product overview MPS QFN-20
0% MP4473 MP4473 product overviewMP4473 product overview MPS QFN-20
0% MPQ4470 MPQ4470 product overviewMPQ4470 product overview MPS QFN-20
0% MPQ4470A MPQ4470A product overviewMPQ4470A product overview MPS QFN-20
0% MPQ4473 MPQ4473 product overviewMPQ4473 product overview MPS QFN-20
0% MPQ4473-AEC1 MPQ4473-AEC1 product overviewMPQ4473-AEC1 product overview MPS QFN-20
10% AOZ1231QI-01 AOZ1231QI-01 product overviewAOZ1231QI-01 product overview Alpha Omega QFN-30
10% BD95513 BD95513 product overviewBD95513 product overview Rohm QFN-32
10% BD95514 BD95514 product overviewBD95514 product overview Rohm QFN-32
25% FAN2103 FAN2103 product overviewFAN2103 product overview Fairchild MLP-25
25% FAN21SV04 FAN21SV04 product overviewFAN21SV04 product overview Fairchild MLP-25
25% LT8610 LT8610 product overviewLT8610 product overview Linear Technology MSOP-16
25% LT8611 LT8611 product overviewLT8611 product overview Linear Technology QFN-24
25% MAX15037 MAX15037 product overviewMAX15037 product overview Maxim TQFN-16
25% BD9009HHFP-LB BD9009HHFP-LB product overviewBD9009HHFP-LB product overview Rohm HRP-7
25% BD9009HFP BD9009HFP product overviewBD9009HFP product overview Rohm HRP-7
25% LM3102 LM3102 product overviewLM3102 product overview Texas Instruments HTSSOP-20, DSBGA-28
25% LM3102-Q1 LM3102-Q1 product overviewLM3102-Q1 product overview Texas Instruments HTSSOP-20
25% MP4570 MP4570 product overviewMP4570 product overview MPS TSSOP-20
25% MPQ4570 MPQ4570 product overviewMPQ4570 product overview MPS TSSOP-20
25% LM43603 LM43603 product overviewLM43603 product overview Texas Instruments HTSSOP-16
25% LM43603-Q1 LM43603-Q1 product overviewLM43603-Q1 product overview Texas Instruments HTSSOP-16
50% A8670 A8670 product overviewA8670 product overview Allegro QFN-20
50% IR3843AM IR3843AM product overviewIR3843AM product overview IRF PQFN-15
50% IR3843WM IR3843WM product overviewIR3843WM product overview IRF PQFN-15
50% ISL8502 ISL8502 product overviewISL8502 product overview Intersil QFN-24
50% ISL8502A ISL8502A product overviewISL8502A product overview Intersil QFN-24
50% LTC3600 LTC3600 product overviewLTC3600 product overview Linear Technology DFN-12, MSOP-12
50% LTC3601 LTC3601 product overviewLTC3601 product overview Linear Technology QFN-16, MSOP-16
50% LTC3603 LTC3603 product overviewLTC3603 product overview Linear Technology QFN-16, MSOP-16
50% LTC3604 LTC3604 product overviewLTC3604 product overview Linear Technology QFN-16, MSOP-16
50% LTC3626 LTC3626 product overviewLTC3626 product overview Linear Technology QFN-20
50% MP1492 MP1492 product overviewMP1492 product overview MPS SOIC-8
50% MP1493 MP1493 product overviewMP1493 product overview MPS SOIC-8
50% MP28248 MP28248 product overviewMP28248 product overview MPS QFN-12
50% MP28258 MP28258 product overviewMP28258 product overview MPS QFN-12
50% MP28258-A MP28258-A product overviewMP28258-A product overview MPS QFN-12
50% MP28259 MP28259 product overviewMP28259 product overview MPS QFN-12
50% MP28259-A MP28259-A product overviewMP28259-A product overview MPS QFN-12
50% MP9181 MP9181 product overviewMP9181 product overview MPS QFN-12
50% BD9006F BD9006F product overviewBD9006F product overview Rohm SOP-8
50% BD9006H BD9006H product overviewBD9006H product overview Rohm HRP-7
50% BD9007F BD9007F product overviewBD9007F product overview Rohm SOP-8
50% BD9007H BD9007H product overviewBD9007H product overview Rohm HRP-7
50% LM20242 LM20242 product overviewLM20242 product overview Texas Instruments HTSSOP-20
50% LM3100 LM3100 product overviewLM3100 product overview Texas Instruments HTSSOP-20
50% LMR24220 LMR24220 product overviewLMR24220 product overview Texas Instruments DSBGA-28
50% TLV62130 TLV62130 product overviewTLV62130 product overview Texas Instruments QFN-16
50% TPS62130 TPS62130 product overviewTPS62130 product overview Texas Instruments QFN-16
50% TPS62130A TPS62130A product overviewTPS62130A product overview Texas Instruments QFN-16
50% TPS62140 TPS62140 product overviewTPS62140 product overview Texas Instruments QFN-16
50% TPS62140A TPS62140A product overviewTPS62140A product overview Texas Instruments QFN-16
50% TPS62130A-Q1 TPS62130A-Q1 product overviewTPS62130A-Q1 product overview Texas Instruments QFN-16
50% ER2120 ER2120 product overviewER2120 product overview Altera QFN-24
50% BD95835 BD95835 product overviewBD95835 product overview Rohm HTSOP-8
50% MP2316 MP2316 product overviewMP2316 product overview MPS QFN-14
50% LM43602 LM43602 product overviewLM43602 product overview Texas Instruments HTSSOP-16
50% LM43602-Q1 LM43602-Q1 product overviewLM43602-Q1 product overview Texas Instruments HTSSOP-16
50% LM46002 LM46002 product overviewLM46002 product overview Texas Instruments HTSSOP-16
50% LM46002-Q1 LM46002-Q1 product overviewLM46002-Q1 product overview Texas Instruments HTSSOP-16

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of R1242S-A-B.

V-IN max. 30 V, I-OUT 3 A, V-OUT min. 0.8 V, Frequency typ. 1000 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74402500072 0.7 3.0 4.0 23.50 2.8 x 2.8 x 3
74404042010 1.0 3.2 4.8 27.00 4 x 4 x 1.8
74404052010 1.0 3.9 5.5 19.80 5 x 5 x 2
74404300082 0.8 3.5 3.7 14.00 4.8 x 4.8 x 3
744062001 1.0 4.8 4.6 10.00 6.8 x 6.8 x 2.5
7440690010 1.0 3.6 3.8 21.00 8 x 8 x 1.5
74407000082 0.8 6.2 5.5 8.50 8 x 8 x 2
744089410068 0.7 3.4 6.5 22.10 4.8 x 4.8 x 2.1
74408941010 1.0 3.0 5.4 29.50 4.8 x 4.8 x 2.1
744089420082 0.8 3.5 6.7 21.00 4.8 x 4.8 x 3.1
744089430082 0.8 3.4 7.1 17.00 4.8 x 4.8 x 4.1
74408943010 1.0 3.3 6.5 19.00 4.8 x 4.8 x 4.1
744383230068 0.7 3.1 4.7 46.00 2.5 x 2 x 1
744383240068 0.7 3.2 5.9 45.00 2.5 x 2 x 1.2
744383350082 0.8 3.5 7.0 30.00 3 x 3 x 1.5
744383360068 0.7 4.5 6.2 22.00 3 x 3 x 2
74438336010 1.0 4.0 5.0 26.00 3 x 3 x 2
7447730 1.0 4.0 5.7 14.00 4 x 4.5 x 3.5
744778001 1.0 5.4 6.4 9.00 7.3 x 7.3 x 3.4
7447785001 1.0 3.5 4.5 31.00 5.9 x 6.2 x 3.3
7447786001 1.0 5.0 5.5 28.00 5.9 x 6.2 x 5.1
7447789001 1.0 5.4 6.4 10.00 7.3 x 7.3 x 3.5
74479299210 1.0 3.0 5.2 38.00 3.2 x 2.5 x 1.2
784383230068 0.7 3.1 4.7 46.00 2.5 x 2 x 1
784383350082 0.8 3.5 7.0 30.00 3 x 3 x 1.5
7847730 1.0 4.0 5.7 14.00 4 x 4.5 x 3.5
784778010 1.0 3.5 7.0 30.00 7.3 x 7.3 x 3.5
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