STMicroelectronics L6738 DC DC Switching Controllers
Buck Regulator Positive Output Step-Down DC-DC Controller IC 16-VFQFPN (3x3)
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
L6738
Detailed Description
IC REG CTRLR BUCK 16QFN
Package
16-VFQFN Exposed Pad
Key Features
Package / Case: 16-VFQFN Exposed Pad; Mounting Type: Surface Mount
Lifecycle Status
Obsolete
RoHS State
RoHS Compliant
Datasheet
L6738 Datasheet
Quick Jump:
Technical Specifications
STMicroelectronics L6738 DC DC Switching Controllers technical specifications.
General
Package / Case
16-VFQFN Exposed Pad
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 125°C (TJ)
Supply Voltage
5V ~ 12V
Lifecycle Status
Obsolete
Output Type
Transistor Driver
Switching Frequency
200kHz
Number of Outputs
1
Topology
Buck
Control Features
Enable, Frequency Control, Phase Control, Power Good
Alternate Parts Comparison (L6738 vs PM7744TR vs L3751PUR vs UC3843BN)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 16-VFQFN Exposed Pad | 16-VFQFN Exposed Pad | 20-VFQFN Exposed Pad | 8-DIP |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount, Wettable Flank | Through Hole |
| Operating Temperature | -40°C ~ 125°C (TJ) | -- | -40°C ~ 125°C (TJ) | 0°C ~ 70°C (TJ) |
| Supply Voltage | 5V ~ 12V | -- | 6V ~ 75V | 7.6V ~ 30V |
| Switching Frequency | 200kHz | -- | 100kHz ~ 1MHz | Up to 500kHz |
| Clock Sync | Yes | -- | Yes | No |
| Control Features | Enable, Frequency Control, Phase Control, Power Good | -- | Current Limit, Dead Time Control, Enable, Frequency Control, Power Good, Soft Start, Sync, Tracking | Frequency Control |
| Duty Cycle Max | 100% | -- | 99% | 96% |
| Number of Outputs | 1 | -- | 1 | 1 |
| Output Configuration | Positive | -- | Positive | Positive, Isolation Capable |
| Output Phases | 1 | -- | 1 | 1 |
| Output Type | Transistor Driver | -- | Transistor Driver | Transistor Driver |
| 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.
L6738ATRSTMicroelectronicsBuck Regulator Positive Output Step-Down DC-DC Controller IC 16-VFQFPN (3x3)
L6738ASTMicroelectronicsBuck Regulator Positive Output Step-Down DC-DC Controller IC 16-VFQFPN (3x3)
L6739TRSTMicroelectronicsBuck Regulator Positive Output Step-Down DC-DC Controller IC 16-VFQFPN (3x3)