Description
LM5119QPSQX/NOPB Texas Instruments - Yeehing Electronics
Automotive Grade 5.5-65V Wide Vin, Current Mode Dual Synchronous Buck Controller
Pricing (USD)
| Quantity | Unit Price |
| 1 — 99 | 6.054 |
| 100 — 249 | 4.935 |
| 250 — 999 | 3.879 |
| 1,000 + | 2.63 |
The above prices are for reference only.
Specifications
| Manufacturer | Texas Instruments |
| Product Category | Switching Controllers |
| Minimum Operating Temperature | - 40 C |
| Maximum Operating Temperature | + 125 C |
| Mounting Style | SMD/SMT |
| Package / Case | WQFN-32 |
| Packaging | Reel |
| Operating Temperature Range | - 40 C to + 125 C |
| Series | LM5119Q |
| Brand | Texas Instruments |
| Moisture Sensitive | Yes |
| Operating Supply Current | 6 mA |
| Product Type | Switching Controllers |
| Factory Pack Quantity | 4500 |
| Subcategory | PMIC - Power Management ICs |
For more information, please refer to datasheet
Documents
| LM5119QPSQX/NOPB Datasheet |
More Information
The LM5119Q device is a dual synchronous buck controller intended for step-down regulator applications from a high voltage or widely varying input supply. The control method is based upon current mode control using an emulated current ramp. Current mode control provides inherent line feedforward, cycle-by-cycle current limiting and ease-of-loop compensation. The use of an emulated control ramp reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of very small duty cycles necessary in high input voltage applications. The switching frequency is programmable from 50 kHz to 750 kHz. The LM5119Q device drives external high-side and low-side NMOS power switches with adaptive dead-time control. A user-selectable diode emulation mode enables discontinuous mode operation for improved efficiency at light load conditions. A high voltage bias regulator with automatic switch-over to external bias further improves efficiency. Additional features include thermal shutdown, frequency synchronization, cycle-by-cycle and hiccup mode current limit and adjustable line undervoltage lockout. The device is available in a power enhanced leadless 32-pin WQFN package featuring an exposed die attach pad to aid thermal dissipation.
