Yingxinyuan Int'l(Group) Ltd.
YingXinYuan Electronic Technology Co., Ltd.
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| ECAD Module | PCB Symbol,Footprint & 3D Model |
| Supply and Demand Status | Balance |
| Fake Threat In the Open Market | 69 pct. |
| Popularity | Medium |
| Case / Package | 14-HTSSOP |
| Mounting | SMD (SMT) |
| Temperature Range - Operating | -40°C to 125°C (TJ) |
| Synchronous Rectifier | Yes |
| Frequency - Switching | 50kHz to 1MHz |
| Output Current | 1A |
| Maximum Output Voltage | 92V |
| Minimum Input Voltage | 4.5V |
| Number of Outputs | 1 |
| Output Type | Adjustable |
| Purpose | Step-Down |
| Status | Active |
| Packaging | Reel - TR |
| Manufacturer | Texas Instruments |
| Categories | Integrated Circuits |
| Topology | Buck, Flyback |
| Maximum Input Voltage | 100V |
| Nominal Output Voltage (Min/Fixed) | 2V |
The LM5161 is a 100-V, 1-A synchronous step-down converter with integrated high-side andlow-side MOSFETs. The constant-ON-time control scheme requires no loop compensation and supportshigh step-down ratios with fast transient response. An internal feedback amplifier maintains ±1%output voltage regulation over the entire operating temperature range. The ON-time varies inverselywith input voltage resulting in nearly constant switching frequency. Peak and valley current limitcircuits protect against overload conditions. The under-voltage lockout (EN/UVLO) circuit providesindependently adjustable input undervoltage threshold and hysteresis. The FPWM input pin in LM5161selects either the forced continuous conduction mode (CCM) under all load levels or thediscontinuous conduction mode (DCM) under light or no load conditions. When operating in forcedCCM, the LM5161 supports the multiple output and isolated Fly-Buck applications. When programmedfor the DCM operation, the LM5161 provides a tightly regulated buck output without any additionalexternal feedback ripple injection circuit.