TPS43351-Q1 Buck Controller overview

Description

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Category
Sub-Category

TPS43351-Q1 is a 2 channel, 3 phase sync Buck Controller. The maximum input voltage ranges from 4.00 V to 40.00 V and output current goes up to 3.00 A.

The Controller features adjustable 600 kHz switching frequency which results in a typical inductor size of 15.0 uH and a peak efficiency of 95 %. The TPS43351-Q1 is available in 1 package option(s): HTSSOP-38 .

Parameter and features overview

ParameterValueReplacement
Search Filter
Nr. of Channel 2
V-IN min. 4.00 V
V-IN max. 40.00 V
I-OUT? 3.00 A
V-OUT min. 0.90 V
V-OUT max. 11.00 V
V-OUT adjustable
V-OUT programmable no
sync/non-sync sync
Frequency typ. 600 kHz
Frequency adj. adjustable
Frequency adj. min. 150 kHz
Frequency adj. max. 600 kHz
ext.clock sync. yes
ext.clock Frequency min. 150 kHz
ext.clock Frequency max. 600 kHz
Softstart yes
Softstart adjustable yes
Tracking yes
Power Good (PG) yes
Enable yes
Operating min. -40 °C
Operating max. 125 °C
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ. 165 °C
Inductor size typ. 15.0 uH
Automotive AEC-Q100 yes
Light-Load Mode no
Single/ Multiphase multi
Nr. of Phases 3
Peak Efficiency 95 %
component count min. 23
current limit adjustable yes
Nr.of package options 1
CSP
SOT
MSOP
QFN/DFN
SO/SOIC
SOP HTSSOP-38
DIP

TPS43351-Q1 Datasheet

Link to the most up-to-date TPS43351-Q1 datasheet and the product page for EVM, tools and support information.

TPS43351-Q1

TPS43351-Q1 inventory, samples and price

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Available Distributors with stock: 5

AVNET-ASIA (1)

ProductStockPriceBuy
TPS43351QDAPRQ12000
20002.73 USD
40002.71 USD
80002.70 USD
120002.68 USD
200002.66 USD
Buy Now

Chip-One-Stop (1)

ProductStockPriceBuy
TPS43351EVM17
1125.00 USD
5113.00 USD
10102.00 USD
Buy Now

DIGI-KEY (2)

ProductStockPriceBuy
TPS43351QDAPRQ10
20002.40 USD
Buy Now
TPS43351QDAPRQ11345
15.23 USD
104.70 USD
1003.85 USD
5003.28 USD
10002.76 USD
Buy Now
TPS43351QDAPRQ11345
15.23 USD
104.70 USD
1003.85 USD
5003.28 USD
10002.76 USD
Buy Now
TPS43351EVM0
199.78 USD
Buy Now

Mouser-Electronics (2)

ProductStockPriceBuy
TPS43351QDAPRQ1730
15.07 USD
104.56 USD
254.38 USD
1003.73 USD
2503.54 USD
5003.18 USD
10002.49 USD
Buy Now
TPS43351EVM1
1104.60 USD
Buy Now

Texas Instruments (2)

ProductStockPriceBuy
TPS43351EVM27
199.00 USD
Buy Now
TPS43351QDAPRQ12256
14.79 USD
104.37 USD
253.94 USD
1003.62 USD
2503.30 USD
5002.85 USD
7502.47 USD
10002.13 USD
Buy Now

Available Distributors without stock: 3

AVNET-AMERICAS (0)

ProductStockPriceBuy
TPS43351EVM0
199.48 USD
Buy Now
TPS43351QDAPRQ10
20003.44 USD
40003.21 USD
80003.00 USD
120002.82 USD
200002.74 USD
Buy Now

AVNET-EUROPE (0)

ProductStockPriceBuy
TPS43351QDAPRQ10Buy Now

NEWARK (0)

ProductStockPriceBuy
TPS43351QDAPRQ10
15.16 USD
104.57 USD
254.26 USD
504.03 USD
1003.74 USD
2503.55 USD
5003.19 USD
10002.40 USD
Buy Now

Available Distributors with stock: 0

no online Distributor with TPS43351 stock available

Table with equivalents and alternatives

The following Buck Controller are similar to TPS43351-Q1. Or, compare TPS43351-Q1 side-by-side with other Buck Controller via the Comparison function.

Variation Compare Product Manufacturer Package
0% TPS43350-Q1 TPS43350-Q1 product overviewTPS43350-Q1 product overview Texas Instruments HTSSOP-38

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of TPS43351-Q1.

V-IN max. 40 V, I-OUT 3 A, V-OUT min. 0.9 V, Frequency typ. 600 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404052012 1.2 3.6 5.2 23.40 5 x 5 x 2
74404052015 1.5 3.3 4.9 25.70 5 x 5 x 2
74404054015 1.5 4.3 6.9 15.00 5 x 5 x 4
74404063015 1.5 4.6 6.6 13.00 6 x 6 x 2.8
7440620015 1.5 4.3 4.0 10.00 6.8 x 6.8 x 2.5
7440650015 1.5 7.2 7.5 7.30 10 x 10 x 3.1
7440700012 1.2 4.8 4.2 12.50 8 x 8 x 2
74408942012 1.2 3.2 5.5 22.00 4.8 x 4.8 x 3.1
74437321015 1.5 3.0 4.0 55.00 4.45 x 4.06 x 1.2
74437324015 1.5 3.8 8.0 34.80 4.45 x 4.06 x 2
74438336012 1.2 3.9 4.8 30.00 3 x 3 x 2
74438336015 1.5 3.7 4.5 33.00 3 x 3 x 2
74438356015 1.5 5.8 7.8 16.00 4.1 x 4.1 x 2.1
74438356018 1.8 4.6 6.5 24.50 4.1 x 4.1 x 2.1
744773014 1.4 3.4 5.0 22.00 4 x 4.5 x 3.5
74477790015 1.5 4.3 7.3 15.00 7.3 x 7.3 x 4.5
744787012 1.2 4.9 6.0 8.50 7.8 x 7 x 5
784775012 1.2 6.2 8.0 5.00 7 x 7.8 x 5.5
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