| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
3,000 pcs
|
3000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
1,124 pcs
|
1124 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
1 pcs
|
1 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| AEC Qualified | |
| Automotive Grade | |
| Clock Sync | |
| Control Features | |
| Duty Cycle (Max) | |
| Features | |
| Frequency | |
| Function | |
| Mounting Type | |
| Number of Outputs | |
| Operating Temperature | |
| Output Configuration | |
| Output Phases | |
| Output Type | |
| SVHC Present | |
| Supplier Device Package | |
| Synchronous Rectifier | |
| Topology | |
| Voltage |
The Texas Instruments LM51551QDSSRQ1 is a versatile DC DC Switching Controller designed for automotive and portable battery applications. It features a wide input operating range from 3.5V to 45V, with a minimum boost supply voltage of 1.5V. The controller supports multiple topologies including Boost, Flyback, and SEPIC, and can achieve output voltages up to 300V.
Key electrical specifications include a maximum switching frequency of 2.2 MHz, a maximum duty cycle of 93%, and a typical quiescent current of 480 µA. It incorporates features such as adjustable current limit, frequency synchronization, hiccup mode protection, and soft start. The device is equipped with a 1.5A peak MOSFET driver and is suitable for applications requiring input transient protection up to 50V.
Packaged in a 12-WSON (3x2) or 12-WFDFN Exposed Pad, the LM51551QDSSRQ1 is designed for surface mount applications with wettable flank termination. Its operating temperature range is -40°C to 150°C (TJ). This controller is AEC-Q100 qualified for automotive applications and is functional safety-capable, with documentation available to aid system design.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.19 | $1.19 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The input voltage range is 3.5V to 45V, with a minimum boost supply voltage of 1.5V when BIAS is 3.5V or higher.
The maximum output voltage is 300V.
The operating temperature range is -40°C to 150°C (TJ).
It is available in a 12-WSON (3x2) package and a 12-WFDFN Exposed Pad package.
Yes, it supports clock synchronization.
It supports Boost, Flyback, and SEPIC topologies.
Yes, it is AEC-Q100 qualified for automotive applications.