L99LD21Q6TR-ST-Price, Stock & Datasheet

User Guide

Available from AS9120 Certified Supplier, AIChipLink delivers high-reliability electronic components supported by certified quality management, rigorous inspection processes, counterfeit mitigation controls, and full traceability systems. Our operations comply with AS9120, ISO 9001:2015, and IECQ ESD standards to support aerospace, industrial, defense, and mission-critical applications.

PURCHASE

Please verify all part numbers, quantities, and packaging preferences before placing your order. If substitutions are acceptable, please indicate this clearly. For time-sensitive projects, confirm estimated delivery dates and stock availability in advance. Once submitted, changes or cancellations may not be possible, especially for items marked as non-cancellable/non-returnable (NCNR). For international shipments, please ensure all import documentation is complete and accurate to avoid delays.

MEANS OF PAYMENT

For your convenience, we accept multiple payment methods in USD, including PayPal, Credit Card, and Wire Transfer. Net terms may be available for qualified customers upon approval.

RFQ (REQUEST FOR QUOTATIONS)

Please ensure the part numbers and quantities are accurate and complete when submitting your RFQ.
Provide target prices and acceptable alternatives, if any, to speed up the quotation process.

IMPORTANT NOTICE

Quotations are subject to stock availability and may vary with market conditions. Prices and lead times are not guaranteed until a purchase order is confirmed. Ensure your contact details are correct to avoid delays in response.

Step1：Prepare product

Step2：Desiccant Protection

Step3：Vacuum Packaging

Step4：Individual Package

Step5：Anti-collision Filling

Step6：Packaging Box

SHIPPING COST

1. Shipping starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.).
2. Some specific products need to reach the minimum order quantity.
3. It may cost additional remote fees for delivery if you are in a remote area.

SHIPPING METHOD

Currently, our products are shipped through DHL, FedEx, SF, and UPS.

DELIVERY TIME

1. Once the goods are shipped, estimated delivery time depends on the shipping methods you chose: FedEx International, 5-7 business days.
2. For in-stock parts, orders normally could be shipped out within 1-2days.

L99LD21Q6TR Information

ST L99LD21Q6TR technical specifications, attributes, parameters and parts with similar specifications to ST L99LD21Q6TR.

Type
Parameter

Lifecycle Status
ACTIVE (Last Updated: 7 months ago)

Factory Lead Time
20 Weeks

Mounting Type
Surface Mount

Package / Case
40-TFQFN Exposed Pad

Operating Temperature
-40°C~150°C TJ

Packaging
Tape & Reel (TR)

Series
Automotive, AEC-Q100

Part Status
Active

Moisture Sensitivity Level (MSL)
3 (168 Hours)

Type
DC DC Regulator

Type
Parameter

Applications
Automotive, Lighting

Peak Reflow Temperature (Cel)
NOT SPECIFIED

Frequency
100kHz~450kHz

Time@Peak Reflow Temperature-Max (s)
NOT SPECIFIED

Base Part Number
L99L

Number of Outputs
2

Voltage - Output
50V

Topology
Buck, Boost

Current - Output / Channel
1.5A

Internal Switch(s)
Yes

Download datasheets and manufacturer documentation for ST L99LD21Q6TR.

Datasheets:

stmicroelectronics-l99ld21q6tr-datasheets-9923.pdf

L99LD21Q6TR Overview

Additionally, there is a 40-TFQFN Exposed Pad package for saving space.Typically, LED drivers have 2 outputs.It is mounted using Surface Mount.In this case, the DC DC Regulator emerges as highly efficient and reliable.The LED driver is capable of operating at a temperature of -40°C~150°C TJ.Automotive, Lighting has many benefits.As a result, it operates based on the frequency of 100kHz~450kHz.It is possible for undetermined failures to occur if the voltage supply falls below 5.5V.LED drivers are found under the base part number L99L.The device has a voltage output of 50V volts.In this case, the maximum value will be 24V.The LED driver belonging to the Automotive, AEC-Q100 series has many applications.

L99LD21Q6TR Features

Available in the 40-TFQFN Exposed Pad package
Operating temperature of -40°C~150°C TJ
Frequency of 100kHz~450kHz

L99LD21Q6TR Applications

There are a lot of STMicroelectronics
L99LD21Q6TR LED Driver ICs applications.

High-end retail lighting
Medical surgery lighting
Replacement lamps
Panel lighting
Down lights
Linear fluorescent
A- lamps
General LED Lighting: Down-lights, Base-lights, Ceiling Lights, Exterior Lights
Industrial LED Lighting: Image Recognition Devices
Stage Lighting and Signage

L99LD21Q6TR Relevant information

L99LD21Q6TR FAQ

Can I request a quote for L99LD21Q6TR?

L99LD21Q6TR from ST is ready for RFQ submission. Send your target quantity and requirements, and AIChipLink will check current availability, lead time, and quantity-based pricing.

Why is pricing not shown as a fixed value for L99LD21Q6TR?

The final price for L99LD21Q6TR depends on requested quantity, supply conditions, date code, package option, and destination. An RFQ lets us return the current market quote for your order.

Which specifications should I review for L99LD21Q6TR?

L99LD21Q6TR is a ST electronic component part. Key details include Packaging: Tape & Reel (TR) and Time@Peak Reflow Temperature-Max (s): NOT SPECIFIED and Moisture Sensitivity Level (MSL): 3 (168 Hours); contact us if you need the specifications verified before sourcing.

When will I receive a quotation for L99LD21Q6TR?

After you submit the RFQ for L99LD21Q6TR, our sales team typically replies within 24 hours with availability, unit pricing, lead time, shipping choices, and possible substitutes.

What is the expected shipping time for L99LD21Q6TR?

Once stock for L99LD21Q6TR is confirmed, available inventory can generally ship within 1–2 business days. The final schedule depends on quantity, warehouse source, and delivery address.

Can AIChipLink help find alternatives to L99LD21Q6TR?

Yes. If L99LD21Q6TR is unavailable, end-of-life, or outside your schedule, we can review comparable ST electronic component parts and compatible replacement options.