STMicroelectronics L99LD21Q6 LED Drivers
LED Driver IC 2 Output DC DC Regulator Step-Down (Buck), Step-Up (Boost) PWM, SPI Dimming 1.5A 40-QFN (6x6)
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
L99LD21Q6
Detailed Description
HIGH POWER LED DRIVER FOR AUTOMO
Package
40-TFQFN Exposed Pad
Key Features
Package / Case: 40-TFQFN Exposed Pad; Frequency: 100kHz ~ 450kHz
Lifecycle Status
Obsolete
RoHS State
RoHS Compliant
Datasheet
L99LD21Q6 Datasheet
Quick Jump:
Technical Specifications
STMicroelectronics L99LD21Q6 LED Drivers technical specifications.
General
Series
Automotive, AEC-Q100
Package / Case
40-TFQFN Exposed Pad
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 150°C (TJ)
Supply Voltage
5.5V ~ 60V
Lifecycle Status
Obsolete
Application
Automotive, Lighting
Frequency
100kHz ~ 450kHz
Type
DC DC Regulator
Topology
Step-Down (Buck), Step-Up (Boost)
Alternate Parts Comparison (L99LD21Q6 vs STCS2ASPR vs STCS1APHR vs L99LD20Q6TR)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 40-TFQFN Exposed Pad | PowerSO-10 Exposed Bottom Pad | PowerSO-8 | 40-TFQFN Exposed Pad |
| Operating Temperature | -40°C ~ 150°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) |
| Current Output Channel | 1.5A | 2A | 1.5A | 1.5A |
| Dimming | PWM, SPI | PWM | PWM | PWM |
| Internal Switch S | Yes | Yes | Yes | Yes |
| Type | DC DC Regulator | Linear | Linear | DC DC Regulator |
| Voltage Supply Max | -- | -- | -- | -- |
| Voltage Supply Min | -- | -- | -- | -- |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Number of Outputs | 2 | 1 | 1 | 2 |
| Action |
More Parts in LED Drivers
Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.
L99LD21Q6TRSTMicroelectronicsLED Driver IC 2 Output DC DC Regulator Buck, Boost PWM Dimming 1.5A 40-QFN (6x6)
L99LD20Q6TRSTMicroelectronicsLED Driver IC 2 Output DC DC Regulator Buck PWM Dimming 1.5A 40-QFN (6x6)