Texas Instruments LP8545SQX-EXTF/NOPB LED Drivers
High-Efficiency LED Backlight Driver for Notebooks
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
LP8545SQX-EXTF/NOPB
Detailed Description
High-Efficiency LED Backlight Driver for Notebooks
Package
24-WFQFN Exposed Pad
Key Features
Package / Case: 24-WFQFN Exposed Pad; Frequency: 1.25MHz
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
LP8545SQX-EXTF/NOPB Datasheet
Quick Jump:
Technical Specifications
Texas Instruments LP8545SQX-EXTF/NOPB LED Drivers technical specifications.
General
Package / Case
24-WFQFN Exposed Pad
Operating Temperature
-30°C ~ 85°C (TA)
Supply Voltage
5.5V ~ 22V
Lifecycle Status
Active
Application
Backlight, LED Lighting
Frequency
1.25MHz
Type
DC DC Regulator
Internal Switch S
No
Number of Outputs
6
Topology
Step-Up (Boost)
Alternate Parts Comparison (LP8545SQX-EXTF/NOPB vs LP3943ISQ/NOPB vs LP3944ISQ/NOPB vs LP3944ISQX)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 24-WFQFN Exposed Pad | 24-WFQFN Exposed Pad | 24-WFQFN Exposed Pad | 24-WFQFN Exposed Pad |
| Operating Temperature | -30°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Supply Voltage | 5.5V ~ 22V | 2.3V ~ 5.5V | 2.3V ~ 5.5V | 2.3V ~ 5.5V |
| Lifecycle Status | Active | Active | Active | Obsolete |
| Dimming | I²C, PWM | I²C, SMBus | I²C, SMBus | I²C, SMBus |
| Internal Switch S | No | Yes | Yes | Yes |
| Number of Outputs | 6 | 16 | 8 | 8 |
| Topology | Step-Up (Boost) | Shift Register | Shift Register | Shift Register |
| Type | DC DC Regulator | Power Switch | Power Switch | Power Switch |
| Mounting Type | -- | Surface Mount | Surface Mount | Surface Mount |
| Applications | -- | Camera Flash | Camera Flash | Camera Flash |
| Current Output Channel | -- | 25mA | 25mA | 25mA |
| Action |
Cross Reference
Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .
Suggested replacements
MC34844AEPNXP SemiconductorsNXP
IC LED DRVR RGLTR DIM 80MA 32QFN
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.
