LED Driver IC 2 Output DC DC Regulator Buck, Boost PWM Dimming 1.5A 40-QFN (6x6)
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L99LD21Q6TR

DigiKey Part Number
497-18127-2-ND - Tape & Reel (TR)
497-18127-1-ND - Cut Tape (CT)
497-18127-6-ND - Digi-Reel®
Manufacturer
STMicroelectronics
Manufacturer Product Number
L99LD21Q6TR
Description
IC LED DRVR RGLTR PWM 1.5A 40QFN
Customer Reference
Detailed Description
LED Driver IC 2 Output DC DC Regulator Buck, Boost PWM Dimming 1.5A 40-QFN (6x6)
Datasheet
 Datasheet
EDA/CAD Models
L99LD21Q6TR Models
Product Attributes
Type
Description
Select All
Category
Manufacturer
STMicroelectronics
Series
-
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Part Status
Last Time Buy
Type
DC DC Regulator
Topology
Buck, Boost
Internal Switch(s)
Yes
Number of Outputs
2
Voltage - Supply (Min)
5.5V
Voltage - Supply (Max)
24V
Voltage - Output
50V
Current - Output / Channel
1.5A
Frequency
100kHz ~ 450kHz
Dimming
PWM
Applications
Lighting
Operating Temperature
-40°C ~ 150°C (TJ)
Grade
Automotive
Qualification
AEC-Q100
Mounting Type
Surface Mount
Package / Case
40-TFQFN Exposed Pad
Supplier Device Package
40-QFN (6x6)
Base Product Number
L99LD21
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In-Stock: 1.956
Check for Additional Incoming Stock
Last Time Buy Date: 15/08/2026
Quantity
All prices are in EUR
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1€3.73000€3.73
10€2.83200€28.32
25€2.60640€65.16
100€2.35810€235.81
250€2.23972€559.93
500€2.16840€1,084.20
1.000€2.10972€2,109.72
* All Digi-Reel orders will add a €5.50 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
3.000€2.03724€6,111.72
Manufacturers Standard Package
Unit Price without VAT:€3.73000
Unit Price with VAT:€4.51330