MAX1974 Buck Converter overview

Description

Manufacturer
 
Category
Sub-Category

MAX1974 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 0.75 V to 5.00 V output voltage.

It requires are a typical inductor size of 3.30 µH, a typical external component count of 8 and achieves a peak efficiency of 93 %. Further MAX1974 characteristics are a fixed 1400 kHz switching frequency and 1 available package option(s): µMAX-10 .

For the MAX1974 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. 2.60 V
V-IN max. 5.50 V
I-OUT? 1.00 A
V-OUT min. 0.75 V
V-OUT max. 5.00 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync sync
Frequency typ. 1400 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 yes
Quiescent current max. 7500 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min.
Junction max.
thermal shutdown typ. 170 °C
Inductor size typ. 3.30 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode no
Topology Buck
Peak Efficiency 93 %
Component count min. 8
current limit adjustable no
Nr.of packages 1
CSP
SC70
SOT
MSOP
QFN/DFN µMAX-10
SO/SOIC
SOP
DIP
TO
DDPAK

MAX1974 Datasheet

Link to the most up-to-date MAX1974 datasheet and the product page for EVM, tools and support information.

MAX1974

MAX1974 Sample stock and distributor price breaks

MAX1974 prices and online available distributors.

OEMSecrets.com
findchips.com

Available Distributors with stock: 8

Avnet America (1)

ProductStockPriceBuy
MAX1974EUB+520
17.29 USD
106.92 USD
255.09 USD
504.85 USD
1003.47 USD
Buy Now
MAX1974EUB+T0
25003.21 USD
50003.14 USD
100003.06 USD
150002.94 USD
250002.89 USD
Buy Now

Avnet Europe (1)

ProductStockPriceBuy
MAX1974EUB+200Buy Now
MAX1974EUB+T0Buy Now

Digi-Key (1)

ProductStockPriceBuy
MAX1974EUB+1514
17.15 USD
106.79 USD
254.95 USD
504.70 USD
1003.33 USD
2503.28 USD
Buy Now
MAX1974EUB+T0
25002.85 USD
Buy Now

Element14 (1)

ProductStockPriceBuy
MAX1974EUB+60
111.03 USD
1010.47 USD
257.63 USD
507.25 USD
1005.13 USD
2505.05 USD
Buy Now

Farnell Element14 (1)

ProductStockPriceBuy
MAX1974EUB+60Buy Now

Future Electronics (1)

ProductStockPriceBuy
MAX1974EUB+200
503.21 USD
2003.11 USD
Buy Now
MAX1974EUB+T0
25002.73 USD
Buy Now

Newark Electronics (1)

ProductStockPriceBuy
MAX1974EUB+60
16.86 USD
106.51 USD
254.79 USD
504.56 USD
1003.27 USD
2503.22 USD
20003.17 USD
Buy Now

RS Components (1)

ProductStockPriceBuy
MAX1974EUB+46Buy Now

Available Distributors without stock: 2

Avnet Asia (0)

ProductStockPriceBuy
MAX1974EUB+T0
25002.91 USD
50002.89 USD
100002.87 USD
150002.86 USD
250002.84 USD
Buy Now

Buerklin (0)

ProductStockPriceBuy
MAX1974EUB+0Buy Now

Available Distributors with stock: 11

Digi-Key

ProductStockPriceBuy
MAX1974EUB+ 1514
2502.82 €
1002.86 €
504.04 €
254.26 €
105.84 €
16.15 €
Buy Now
MAX1974EUB+T 0
25002.45 €
Buy Now
show stock=0hide stock=0

Avnet

ProductStockPriceBuy
MAX1974EUB+ 200
1003.67 €
2003.53 €
3003.39 €
5003.15 €
10002.94 €
Buy Now
MAX1974EUB+ 100
17.29 $
106.92 $
255.09 $
504.85 $
1003.47 $
2503.42 $
20003.37 $
Buy Now
MAX1974EUB+T 0
25003.21 $
50003.14 $
100003.06 $
150002.94 $
250002.89 $
Buy Now
MAX1974EUB+T 0
25002.91 $
50002.89 $
100002.87 $
150002.86 $
250002.84 $
Buy Now
MAX1974EUB+T 0
25003.24 €
50003.11 €
100002.99 €
150002.78 €
250002.59 €
Buy Now
show stock=0hide stock=0

Newark element14

ProductStockPriceBuy
MAX1974EUB+ 60
16.86 $
106.51 $
254.79 $
504.56 $
1003.27 $
2503.22 $
20003.00 $
Buy Now

Future Electronics

ProductStockPriceBuy
MAX1974EUB+T 0
25002.73 $
Buy Now
MAX1974EUB+ 200
503.21 $
2003.11 $
Buy Now
show stock=0hide stock=0

Rochester Electronics

ProductStockPriceBuy
MAX1974EUB 350
13.39 $
253.14 $
1003.01 $
5002.90 $
10002.75 $
Buy Now

Mouser Electronics

ProductStockPriceBuy
MAX1974EUB+ 800
17.26 $
106.90 $
255.06 $
503.63 $
1003.44 $
2503.39 $
5003.23 $
10003.21 $
Buy Now
MAX1974EUB+T 0
25002.79 $
Buy Now
MAX1974EUB-G05 0 Buy Now
show stock=0hide stock=0

Bristol Electronics

ProductStockPriceBuy
MAX1974EUB+T 138 Buy Now
MAX1974EUB+ 600 Buy Now

element14 Asia-Pacific

ProductStockPriceBuy
MAX1974EUB+ 60
18.82 $
108.38 $
256.10 $
505.80 $
1004.10 $
2504.04 $
Buy Now

Farnell element14

ProductStockPriceBuy
MAX1974EUB+ 60
15.47 GBP
105.19 GBP
253.79 GBP
502.53 GBP
Buy Now

New Advantage Corporation

ProductStockPriceBuy
MAX1974EUB+ 200
503.78 $
2003.66 $
Buy Now

RS Components

ProductStockPriceBuy
MAX1974EUB+ 46
54.79 GBP
254.60 GBP
504.30 GBP
754.10 GBP
Buy Now

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to MAX1974. Optional, compare MAX1974 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% AOZ1020AI AOZ1020AI product overviewAOZ1020AI product overview Alpha Omega SOIC-8
0% ADP2119 ADP2119 product overviewADP2119 product overview Analog Devices QFN-10
0% ADP2120 ADP2120 product overviewADP2120 product overview Analog Devices QFN-10
0% ISL80019 ISL80019 product overviewISL80019 product overview Intersil DFN-8
0% ISL80019A ISL80019A product overviewISL80019A product overview Intersil DFN-8
0% ISL8002 ISL8002 product overviewISL8002 product overview Intersil DFN-8
0% ISL8002A ISL8002A product overviewISL8002A product overview Intersil DFN-8
0% ISL8012 ISL8012 product overviewISL8012 product overview Intersil DFN-10
0% ISL9106 ISL9106 product overviewISL9106 product overview Intersil DFN-10
0% ISL9107 ISL9107 product overviewISL9107 product overview Intersil DFN-8
0% LTC1875 LTC1875 product overviewLTC1875 product overview Linear Technology TSSOP-16
0% LTC1879 LTC1879 product overviewLTC1879 product overview Linear Technology TSSOP-16
0% MAX15053 MAX15053 product overviewMAX15053 product overview Maxim WLP-9
0% MIC23153 MIC23153 product overviewMIC23153 product overview Micrel MLF-10
0% MIC23155 MIC23155 product overviewMIC23155 product overview Micrel MLF-10
0% NX4110 NX4110 product overviewNX4110 product overview Microsemi SOT23-5
0% MP1474 MP1474 product overviewMP1474 product overview MPS TSOT23-8
0% MP2119 MP2119 product overviewMP2119 product overview MPS QFN-10
0% MP2144 MP2144 product overviewMP2144 product overview MPS TSOT23-8
0% MP2158 MP2158 product overviewMP2158 product overview MPS QFN-8
0% MP2159 MP2159 product overviewMP2159 product overview MPS TSOT23-8
0% MP2161 MP2161 product overviewMP2161 product overview MPS TSOT23-8
0% MP2162 MP2162 product overviewMP2162 product overview MPS QFN-8
0% MP2209 MP2209 product overviewMP2209 product overview MPS QFN-14
0% MP28127 MP28127 product overviewMP28127 product overview MPS QFN-10
0% MP28262 MP28262 product overviewMP28262 product overview MPS QFN-14
0% NCP6332 NCP6332 product overviewNCP6332 product overview ON Semiconductor WDFN-8
0% NCP6334 NCP6334 product overviewNCP6334 product overview ON Semiconductor WDFN-8
0% NCP6354 NCP6354 product overviewNCP6354 product overview ON Semiconductor WDFN-8
0% NCV6334 NCV6334 product overviewNCV6334 product overview ON Semiconductor WDFN-8
0% NCV6354 NCV6354 product overviewNCV6354 product overview ON Semiconductor WDFN-8
0% RT8297A RT8297A product overviewRT8297A product overview Richtek DFN-8
0% RT8297B RT8297B product overviewRT8297B product overview Richtek DFN-8
0% SY8012A SY8012A product overviewSY8012A product overview Silergy SO-8
0% SY8031 SY8031 product overviewSY8031 product overview Silergy SOT23-5
0% SY8031L SY8031L product overviewSY8031L product overview Silergy SOT23-5
0% SY8065 SY8065 product overviewSY8065 product overview Silergy SOT23-6
0% SY8065L SY8065L product overviewSY8065L product overview Silergy SOT23-6
0% ST1S09 ST1S09 product overviewST1S09 product overview ST DFN-6
0% TLV62566 TLV62566 product overviewTLV62566 product overview Texas Instruments SOT23-5
0% TPS62067 TPS62067 product overviewTPS62067 product overview Texas Instruments SON-8
0% RP506x-F RP506x-F product overviewRP506x-F product overview Ricoh DFN-10
0% RP506x-C RP506x-C product overviewRP506x-C product overview Ricoh DFN-10
0% TS30021 TS30021 product overviewTS30021 product overview Triune Systems QFN-16
0% TS30022 TS30022 product overviewTS30022 product overview Triune Systems QFN-16
0% MIC23156 MIC23156 product overviewMIC23156 product overview Micrel MLF-17, WLCSP-16
0% MIC23163 MIC23163 product overviewMIC23163 product overview Micrel DFN-10
0% MIC23164 MIC23164 product overviewMIC23164 product overview Micrel DFN-10
0% BD9A100MUV BD9A100MUV product overviewBD9A100MUV product overview Rohm VQFN-16
0% MP1474S MP1474S product overviewMP1474S product overview MPS TSOT23-8
0% MP9942 MP9942 product overviewMP9942 product overview MPS TSOT23-8
0% MP2159A MP2159A product overviewMP2159A product overview MPS TSOT23-8
0% MP2161A MP2161A product overviewMP2161A product overview MPS TSOT23-8
0% TPS62067-Q1 TPS62067-Q1 product overviewTPS62067-Q1 product overview Texas Instruments SON-8
10% ACT8309 ACT8309 product overviewACT8309 product overview Active Semi TDFN-8
10% ACT8310 ACT8310 product overviewACT8310 product overview Active Semi TDFN-8
10% ACT8311 ACT8311 product overviewACT8311 product overview Active Semi TDFN-8
10% MAX17502 MAX17502 product overviewMAX17502 product overview Maxim TSSOP-EP-14, TDFN-10
10% BD9123MUV BD9123MUV product overviewBD9123MUV product overview Rohm QFN-16
10% TPS62160 TPS62160 product overviewTPS62160 product overview Texas Instruments SON-8
10% ZSPM4011B ZSPM4011B product overviewZSPM4011B product overview ZMDI QFN-16
10% TS30011 TS30011 product overviewTS30011 product overview Triune Systems QFN-16
10% TPS62160-Q1 TPS62160-Q1 product overviewTPS62160-Q1 product overview Texas Instruments WSON-8
25% AP6015 AP6015 product overviewAP6015 product overview Diodes MSOP-10
25% LTC3606B LTC3606B product overviewLTC3606B product overview Linear Technology DFN-8
25% MAX1927 MAX1927 product overviewMAX1927 product overview Maxim u00b5MAX-10
25% AAT2503 AAT2503 product overviewAAT2503 product overview Skyworks QFN-20
25% AAT2504 AAT2504 product overviewAAT2504 product overview Skyworks QFN-20
25% LMR22007 LMR22007 product overviewLMR22007 product overview Texas Instruments DSBGA-9
50% ISL8010 ISL8010 product overviewISL8010 product overview Intersil MSOP-10
50% LTC3447 LTC3447 product overviewLTC3447 product overview Linear Technology DFN-10
50% EL7534 EL7534 product overviewEL7534 product overview Intersil MSOP-10

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of MAX1974.

V-IN max. 5.5 V, I-OUT 1 A, V-OUT min. 0.75 V, Frequency typ. 1400 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744025001 1.2 2.6 3.0 36.00 2.8 x 2.8 x 3
744031001 1.5 1.8 1.6 40.00 3.8 x 3.8 x 1.8
74404024015 1.5 1.9 2.4 65.00 2.5 x 2 x 1.2
74404032015 1.5 2.0 2.3 40.00 3 x 3 x 1.5
7440420018 1.8 2.4 2.4 40.00 4.8 x 4.8 x 2
7440430012 1.2 3.1 2.8 15.00 4.8 x 4.8 x 3
7440430018 1.8 2.7 2.5 20.00 4.8 x 4.8 x 3
7440520018 1.8 2.6 3.0 30.00 5.8 x 5.8 x 2
7440680017 1.7 2.5 2.4 41.00 8 x 8 x 1.2
74438343015 1.5 1.3 3.0 150.00 2.5 x 1.6 x 0.6
74479976215 1.5 1.6 1.9 100.00 2 x 1.6 x 0.5
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