STMicroelectronics L99LD02Q505 DC DC Switching Controllers
Boost Regulator Positive Output Step-Up SPI DC-DC Controller IC 32-QFN (5x5)
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
L99LD02Q505
Detailed Description
DUAL-PHASE BOOST DC/DC CONTROLLE
Package
32-VFQFN Exposed Pad
Key Features
Package / Case: 32-VFQFN Exposed Pad; Mounting Type: Surface Mount, Wettable Flank
Lifecycle Status
Obsolete
RoHS State
RoHS Compliant
Datasheet
L99LD02Q505 Datasheet
Quick Jump:
Technical Specifications
STMicroelectronics L99LD02Q505 DC DC Switching Controllers technical specifications.
General
Series
Automotive, AEC-Q100
Package / Case
32-VFQFN Exposed Pad
Mounting Type
Surface Mount, Wettable Flank
Operating Temperature
-40°C ~ 150°C (TJ)
Supply Voltage
3V ~ 28V
Lifecycle Status
Obsolete
Functions
Step-Up
Topology
Boost
Output Type
Transistor Driver
Control Features
Current Limit, Enable, Frequency Control, Phase Control, Power Good, Ramp, Soft Start, Watchdog
Alternate Parts Comparison (L99LD02Q505 vs UC3843BN vs UC3845BN vs L6910G)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 32-VFQFN Exposed Pad | 8-DIP | 8-DIP | 16-SOIC |
| Mounting Type | Surface Mount, Wettable Flank | Through Hole | Through Hole | Surface Mount |
| Operating Temperature | -40°C ~ 150°C (TJ) | 0°C ~ 70°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) |
| Supply Voltage | 3V ~ 28V | 7.6V ~ 30V | 7.6V ~ 30V | 5V ~ 12V |
| Switching Frequency | 100kHz ~ 470kHz | Up to 500kHz | Up to 500kHz | 200kHz |
| Clock Sync | Yes | No | No | No |
| Control Features | Current Limit, Enable, Frequency Control, Phase Control, Power Good, Ramp, Soft Start, Watchdog | Frequency Control | Frequency Control | Current Limit, Frequency Control, Phase Control, Power Good, Soft Start |
| Duty Cycle Max | 95% | 96% | 48% | 100% |
| Output Configuration | Positive | Positive, Isolation Capable | Positive, Isolation Capable | Positive |
| Output Phases | 2 | 1 | 1 | 1 |
| Output Type | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver |
| Synchronous Rectifier | No | No | No | Yes |
| Action |
More Parts in DC DC Switching Controllers
Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.
L99LD02Q505TRSTMicroelectronicsBoost Regulator Positive Output Step-Up SPI DC-DC Controller IC 32-QFN (5x5)
UC3843BNSTMicroelectronicsBoost, Flyback Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 8-Mini DIP
UC3845BNSTMicroelectronicsBoost, Flyback Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 8-Mini DIP