Texas Instruments
LM5115SD/NOPB
LM5115SD/NOPB
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LM5115SD/NOPB Texas Instruments - Yeehing Electronics
75V, Secondary Side Post Regulator/ Synchronous Buck Controller
Pricing (USD)
| Quantity | Unit Price |
| 1 — 99 | 3.866 |
| 100 — 249 | 3.388 |
| 250 — 999 | 2.375 |
| 1,000 + | 1.34 |
The above prices are for reference only.
Specifications
| Manufacturer | Texas Instruments |
| Product Category | Switching Controllers |
| RoHS | Y |
| Topology | Synchronous Secondary Side Post Regulator |
| Number of Outputs | 1 Output |
| Switching Frequency | 50 kHz to 1000 kHz |
| Duty Cycle - Max | 85 % |
| Output Voltage | 12 V |
| Output Current | 2.5 A |
| Minimum Operating Temperature | - 40 C |
| Maximum Operating Temperature | + 125 C |
| Mounting Style | SMD/SMT |
| Package / Case | WSON-16 |
| Packaging | Reel |
| Height | 0.8 mm |
| Length | 5 mm |
| Operating Temperature Range | - 40 C to + 125 C |
| Series | LM5115 |
| Type | Secondary Side Post Regulator PWM Controller |
| Brand | Texas Instruments |
| Development Kit | LM5115DCEVAL |
| Operating Supply Current | 40 mA, 4 mA |
| Operating Supply Voltage | 4.5 V to 7.5 V, 4.5 V to 30 V |
| Product Type | Switching Controllers |
| Factory Pack Quantity | 1000 |
| Subcategory | PMIC - Power Management ICs |
| Unit Weight | 0.002205 oz |
For more information, please refer to datasheet
Documents
| LM5115SD/NOPB Datasheet |
More Information
The LM5115 is a versatile switching regulator controller. It has two main application configurations. The first is utilizing the Secondary Side Post Regulation (SSPR) technique to implement multiple output power converters. In the second configuration, it can be used as a standalone synchronous buck controller (Please see for more details). The SSPR technique develops a highly efficient and well regulated auxiliary output from the secondary side switching waveform of an isolated power converter. Regulation of the auxiliary output voltage is achieved by leading edge pulse width modulation (PWM) of the main channel duty cycle. Leading edge modulation is compatible with either current mode or voltage mode control of the main output. The LM5115 drives external high side and low side NMOS power switches configured as a synchronous buck regulator. A current sense amplifier provides overload protection and operates over a wide common mode input range. Additional features include a low dropout (LDO) bias regulator, error amplifier, precision reference, adaptive dead time control of the gate signals and thermal shutdown.
