Datasheet Details
| Part number | LM3743 |
|---|---|
| Manufacturer | National Semiconductor (now Texas Instruments) |
| File Size | 1.30 MB |
| Description | N-Channel FET Synchronous Buck Controller |
| Datasheet |
 LM3743 Datasheet
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General Description
The LM3743 is a voltage mode PWM buck controller which implements synchronous rectification.
It provides a low cost, fault tolerant, and efficient point of load solution.
To reduce component count several parameters are fixed, such as switching frequency and the short circuit protection level.
Key Features
- 1.6Ω of pull-up resistance and 1Ω of pull-down drive resistance for high power density and very efficient power processing. n Reference accuracy: ± 1.75%, over full temperature and input voltage range n Low-side sensing programmable current limit n Fixed high-side sensing for supplemental short-circuit protection n Undervoltage protection n Hiccup mode protection eliminates thermal runaway during fault conditions n Externally programmable soft-start with tracking capability n Switching frequency.