LM5176PWPR Switching Controllers 55V wide VIN synchronous 4-switch buck-boost controller 28-HTSSOP -40 to 125
♠ Product Description
| Product Attribute | Attribute Value |
| Manufacturer: | Texas Instruments |
| Product Category: | Switching Controllers |
| RoHS: | Details |
| Topology: | Buck-Boost |
| Number of Outputs: | 1 Output |
| Switching Frequency: | 100 kHz to 600 kHz |
| Duty Cycle - Max: | 100 % |
| Input Voltage: | 4.2 V to 55 V |
| Output Voltage: | 800 mV to 55 V |
| Output Current: | 2 A |
| Minimum Operating Temperature: | - 40 C |
| Maximum Operating Temperature: | + 125 C |
| Mounting Style: | SMD/SMT |
| Package / Case: | HTSSOP-28 |
| Packaging: | Reel |
| Packaging: | Cut Tape |
| Packaging: | MouseReel |
| Brand: | Texas Instruments |
| Description/Function: | Synchronous 4-switch buck-boost controller |
| Development Kit: | LM5176EVM-HP |
| Moisture Sensitive: | Yes |
| Operating Supply Current: | 2 mA |
| Operating Supply Voltage: | 4.2 V to 55 V |
| Product: | DC-DC Controllers |
| Product Type: | Switching Controllers |
| Series: | LM5176 |
| Shutdown: | Shutdown |
| Factory Pack Quantity: | 2000 |
| Subcategory: | PMIC - Power Management ICs |
| Unit Weight: | 0.006184 oz |
♠ LM5176 55-V Wide VIN Synchronous 4-switch Buck-boost Controller
The LM5176 is a synchronous four-switch buck-boost DC/DC controller capable of regulating the output voltage at, above, or below the input voltage. The LM5176 operates over a wide input voltage range of 4.2 V to 55 V (60-V absolute maximum) to support a variety of applications.
The LM5176 uses current-mode control both in buck and boost modes of operation for superior load and line regulation. The switching frequency is programmed by an external resistor and can be synchronized to an external clock signal.
The device also features a programmable soft-start function and offers protection features including cycleby-cycle current limiting, input undervoltage lockout (UVLO), output overvoltage protection (OVP), and thermal shutdown. In addition, the LM5176 features optional average input or output current limiting, optional spread spectrum to reduce peak EMI, and optional hiccup mode protection in sustained overload conditions.
• Functional Safety-Capable – Documentation available to aid functional safety system design
• Single inductor buck-boost controller for step-up/ step-down DC/DC conversion
• Wide VIN: 4.2 V (2.5 V with bias) to 55 V (60 V maximum)
• Flexible VOUT: 0.8 V to 55 V
• VOUT short protection
• High efficiency buck-boost transition
• Adjustable switching frequency
• Optional frequency sync and dithering
• Integrated 2-A MOSFET gate drivers
• Cycle-by-cycle current limit and optional hiccup
• Optional input or output average current limiting
• Programmable input UVLO and soft start
• Power Good and output overvoltage protection
• Available in HTSSOP-28 and QFN-28 packages
• Create a custom design using the LM5176 with the WEBENCH Power Designer
• Industrial PC power supplies
• USB power delivery
• Battery-powered systems
• LED lighting
