RT9269 LED Boost Driver overview

Description

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RT9269 is a 1 channel, 6.5 V, 0.02 A/string non-sync LED Boost Driver. It can drive a maximum of 4 LED (~3.5Vfwd) per string, features a fixed 500 kHz frequency and is available in 1 package option(s): SOT23-6 .

Further characteristics are a feedback voltage of 0.250 V, a typical inductor size of 47.0 uH and a peak efficiency of 85 %.

Parameter and features overview

ParameterValueReplacement
Search Filter
Nr. of Channel 1
V-IN min. 2.0 V
V-IN max. 6.5 V
V-OUT max. 20.0 V
Nr.of LED per string typ. 4
I-OUT/string? 0.02 A
current limit typ. 0.50 A
sync/non-sync non-sync
Frequency typ. 500 kHz
Frequency fixed
Frequency min.
Frequency max.
Softstart no
Softstart adjustable no
Down-Mode no
Quiescent current max. -30 uA
Operating min. -40 °C
Operating max. 85 °C
Junction min.
Junction max.
thermal shutdown typ. 165 °C
Inductor size typ. 47.0 uH
feedback voltage 0.250 V
Automotive AEC-Q100 no
Topology Boost
Peak Efficiency 85 %
Component count min. 8
DC dimming yes
PWM dimming no
PWM frequency min.
PWM frequency max.
digital dimming no
digital interface no
LED flash no
TxMask no
Nr.of current sources 1
Nr.of package options 1
CSP
SC70
SOT SOT23-6
MSOP
QFN/DFN
SO/SOIC
SOP
DIP

RT9269 Datasheet

Link to the most up-to-date RT9269 datasheet and the product page for EVM, tools and support information.

RT9269

RT9269 inventory, samples and price

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List with equivalents & alternatives

The following DC/DC LED Boost driver are similar to RT9269. Optional, compare RT9269 side-by-side with other LED driver via the comparison function.

Variation Compare Product Manufacturer Package
0% LT1932 LT1932 product overviewLT1932 product overview Linear Technology TSOT23-6
25% MAX1561 MAX1561 product overviewMAX1561 product overview Maxim TDFN-EP-8
25% MAX1582 MAX1582 product overviewMAX1582 product overview Maxim TQFN-12
25% MAX1599 MAX1599 product overviewMAX1599 product overview Maxim TDFN-EP-8
25% MP1518 MP1518 product overviewMP1518 product overview MPS QFN-8, TSOT23-6
25% MP3204 MP3204 product overviewMP3204 product overview MPS TSOT23-6
25% MP3205 MP3205 product overviewMP3205 product overview MPS TSOT23-6
25% MP3304 MP3304 product overviewMP3304 product overview MPS TSOT23-6
25% XC9116 XC9116 product overviewXC9116 product overview Torex USP-6C, SOT25-5
25% XC9133 XC9133 product overviewXC9133 product overview Torex SOT25-5
50% LT3593 LT3593 product overviewLT3593 product overview Linear Technology DFN-6, SOT23-6
50% MAX1554 MAX1554 product overviewMAX1554 product overview Maxim TDFN-EP-8
50% TB62755F TB62755F product overviewTB62755F product overview Toshiba SON-6

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of RT9269.

V-IN min. 2 V, V-OUT max. 20 V, current limit typ. 0.5 A, Frequency typ. 500 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404084015 1.5 5.7 9.0 10.00 8 x 8 x 4.2
74404084022 2.2 5.2 7.8 12.00 8 x 8 x 4.2
7440650015 1.5 7.2 7.5 7.30 10 x 10 x 3.1
7440650022 2.2 6.2 5.9 11.00 10 x 10 x 3.1
7440660015 1.5 7.2 10.0 5.20 10 x 10 x 4.1
7440660022 2.2 6.7 6.8 7.70 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
744314150 1.5 13.0 11.0 4.30 7 x 6.9 x 5
744314200 2.0 11.5 9.0 5.85 7 x 6.9 x 5
744316150 1.5 9.0 9.0 8.15 5.5 x 5.3 x 4.3
744316220 2.2 7.5 7.5 11.30 5.5 x 5.3 x 4.3
74437336015 1.5 5.1 11.0 16.00 5.7 x 5.2 x 3
74438356015 1.5 5.8 7.8 16.00 4.1 x 4.1 x 2.1
744732015 1.5 7.0 9.0 7.00 9 x 9 x 8
7447471022 2.2 8.2 10.0 7.50 10.5 x 10.5 x 11.5
744771002 2.2 10.0 11.0 5.00 12 x 12 x 6
7447713015 1.5 6.2 9.5 13.70 10 x 10 x 3
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
7447715001 1.8 7.6 10.2 7.50 12 x 12 x 4.5
744772022 2.2 6.0 8.0 7.25 7.8 x 7.8 x 10
744777002 2.2 6.0 6.5 13.00 7.3 x 7.3 x 4.5
784771022 2.2 7.2 10.5 10.50 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
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