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LM51231QRGRRQ1, Switching Controllers 2.2-MHz wide-VIN, synchronous boost controller with output voltage tracking 20-VQFN -40 to 125
Power\Power Management ICs\Switching ControllersLM51231-Q1 Boost Controller Texas Instruments LM51231-Q1 Boost Controller provides a wide input range and employs a peak current mode control. The wide input range supports automotive cold-crank and load dump. The minimum input voltage can be as low as 0.8V when BIAS is equal to or greater than 3.8V on the device. The LM51231-Q1 features an output voltage that can be dynamically programmed using the tracking function. At the same time, the bypass mode operation is automatically entered when VSUPPLY > VLOAD, eliminating the body diode drop of the high-side MOSFET. The switching frequency is dynamically programmed with an external resistor from 100kHz to 2.2MHz. Switching at 2.2MHz minimizes AM band interference and permits a small solution size and fast transient response.
| Brand | Texas Instruments |
| Duty Cycle - Max | 98% |
| Factory Pack Quantity | 3000 |
| Input Voltage | 3.8 V to 42 V |
| Isolation | Non-Isolated |
| Manufacturer | Texas Instruments |
| Maximum Operating Temperature | +125 C |
| Minimum Operating Temperature | -40 C |
| Moisture Sensitive | Yes |
| Mounting Style | SMD/SMT |
| Number of Outputs | 1 Output |
| Output Power | 200 W |
| Output Voltage | 5 V to 57 V |
| Package/Case | VQFN-20 |
| Product Category | Switching Controllers |
| Product Type | Switching Controllers |
| Product | Synchronous Boost Controllers |
| Shutdown | Shutdown |
| Subcategory | PMIC-Power Management ICs |
| Switching Frequency | 2.2 MHz |
| Topology | Boost |
| Clock Sync | Yes |
| Duty Cycle (Max) | 98% |
| Frequency - Switching | 100kHz ~ 2.2MHz |
| Function | Step-Up |
| Grade | Automotive |
| Mounting Type | Surface Mount, Wettable Flank |
| Number of Outputs | 1 |
| Operating Temperature | -40°C ~ 125°C(TA) |
| Output Configuration | Positive |
| Output Phases | 1 |
| Output Type | Transistor Driver |
| Package / Case | 20-VFQFN Exposed Pad |
| Qualification | AEC-Q100 |
| Supplier Device Package | 20-VQFN(3.5x3.5) |
| Synchronous Rectifier | Yes |
| Voltage - Supply (Vcc/Vdd) | 0.8V ~ 42V |
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