MAX1858A Buck Controller overview

Description

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Category
Sub-Category

MAX1858A is a 2 channel, 2 phase sync Buck Controller. The maximum input voltage ranges from 4.50 V to 23.00 V and output current goes up to 10.00 A.

The Controller features adjustable 600 kHz switching frequency which results in a typical inductor size of 1.1 uH and a peak efficiency of 90 %. The MAX1858A is available in 1 package option(s): QSOP-24 .

Parameter and features overview

ParameterValueReplacement
Search Filter
Nr. of Channel 2
V-IN min. 4.50 V
V-IN max. 23.00 V
I-OUT? 10.00 A
V-OUT min. 0.80 V
V-OUT max. 18.00 V
V-OUT adjustable
V-OUT programmable no
sync/non-sync sync
Frequency typ. 600 kHz
Frequency adj. adjustable
Frequency adj. min. 100 kHz
Frequency adj. max. 600 kHz
ext.clock sync. yes
ext.clock Frequency min. 100 kHz
ext.clock Frequency max. 600 kHz
Softstart yes
Softstart adjustable no
Tracking no
Power Good (PG) no
Enable yes
Operating min. -40 °C
Operating max. 85 °C
Junction min.
Junction max. 150 °C
thermal shutdown typ. 160 °C
Inductor size typ. 1.1 uH
Automotive AEC-Q100 no
Light-Load Mode no
Single/ Multiphase multi
Nr. of Phases 2
Peak Efficiency 90 %
component count min. 36
current limit adjustable yes
Nr.of package options 1
CSP
SOT
MSOP
QFN/DFN
SO/SOIC
SOP QSOP-24
DIP

MAX1858A Datasheet

Link to the most up-to-date MAX1858A datasheet and the product page for EVM, tools and support information.

MAX1858A

MAX1858A inventory, samples and price

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Available Distributors with stock: 3

AVNET-AMERICAS (1)

ProductStockPriceBuy
MAX1858AEEG0
00.00 USD
Buy Now
MAX1858AEEG+0
1004.46 USD
2004.28 USD
3004.11 USD
5003.96 USD
10003.89 USD
Buy Now
MAX1858AEEG+T2500
25003.45 USD
50003.44 USD
100003.43 USD
150003.42 USD
250003.41 USD
Buy Now

DIGI-KEY (1)

ProductStockPriceBuy
MAX1858AEEG+76
18.48 USD
108.06 USD
255.87 USD
505.58 USD
1003.92 USD
2503.89 USD
Buy Now
MAX1858AEEG+T0
25003.29 USD
Buy Now

Mouser-Electronics (1)

ProductStockPriceBuy
MAX1858AEEG+100
18.19 USD
107.80 USD
255.77 USD
505.49 USD
1003.96 USD
Buy Now
MAX1858AEEG+TNone
25003.50 USD
Buy Now

Available Distributors without stock: 1

AVNET-EUROPE (0)

ProductStockPriceBuy
MAX1858AEEG+0Buy Now

Available Distributors with stock: 0

no online Distributor with MAX1858A stock available

Table with equivalents and alternatives

The following Buck Controller are similar to MAX1858A. Or, compare MAX1858A side-by-side with other Buck Controller via the Comparison function.

Variation Compare Product Manufacturer Package
0% MAX15002 MAX15002 product overviewMAX15002 product overview Maxim TQFN-40
0% MAX1875A MAX1875A product overviewMAX1875A product overview Maxim QSOP-24
0% MAX1876A MAX1876A product overviewMAX1876A product overview Maxim QSOP-24
25% MAX1858 MAX1858 product overviewMAX1858 product overview Maxim QSOP-24
25% MAX1875 MAX1875 product overviewMAX1875 product overview Maxim QSOP-24
25% MAX1876 MAX1876 product overviewMAX1876 product overview Maxim QSOP-24
25% MAX8529 MAX8529 product overviewMAX8529 product overview Maxim QSOP-24

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of MAX1858A.

V-IN max. 23 V, I-OUT 10 A, V-OUT min. 0.8 V, Frequency typ. 600 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744305033 0.3 28.0 26.0 0.16 13.5 x 13.3 x 5.2
744305040 0.4 28.0 20.0 0.16 13.5 x 13.3 x 5.2
744308033 0.3 27.0 30.0 0.37 10.1 x 7 x 7
744308040 0.4 25.0 26.0 0.37 10.1 x 7 x 7
7443081040 0.4 38.0 21.0 0.29 9.4 x 6.2 x 8.1
744310055 0.5 14.0 20.0 3.70 7 x 6.9 x 3.3
744311047 0.4 19.0 25.0 1.85 7 x 6.9 x 4
744314047 0.5 18.0 20.0 1.35 7 x 6.9 x 5
744316033 0.3 18.5 20.0 1.75 5.5 x 5.3 x 4.3
744316047 0.5 15.0 16.0 2.75 5.5 x 5.3 x 4.3
7443340047 0.5 19.0 32.0 2.65 8.4 x 7.9 x 7.5
744355256 0.6 20.0 30.0 1.61 10.5 x 10.2 x 4.2
744373460047 0.5 11.5 31.0 4.00 7.3 x 6.6 x 3
744373490047 0.5 13.5 30.0 3.50 7.3 x 6.6 x 5
744373490056 0.6 13.0 28.0 3.60 7.3 x 6.6 x 5
744373770047 0.5 19.0 29.0 1.32 13.5 x 12.6 x 3.5
744373770056 0.6 18.5 28.0 1.40 13.5 x 12.6 x 3.5
74477009 0.5 23.5 26.4 2.90 12 x 12 x 8
7447797050 0.5 13.2 23.0 4.30 10.2 x 10.2 x 4.5
7447798050 0.5 18.5 18.0 2.20 10.2 x 10.2 x 6.4
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