LM5157x-Q1 器件是一款具有集成式 50V、6.5A (LM5157-Q1) 或 50V、4.33A (LM51571-Q1) 电源开关和宽输入范围的非同步升压转换器。
该器件可用于升压、SEPIC 和反激式拓扑。该器件可由电压至少为 2.9V 的单节电池启动。如果 BIAS 引脚的电压高于 2.9V,该器件可在低至 1.5V 的输入电源电压下运行。
| Topology | Boost, Flyback, SEPIC |
| Vin (min) (V) | 1.5 |
| Vin (max) (V) | 45 |
| Vout (min) (V) | 2 |
| Vout (max) (V) | 48 |
| Switch current limit (typ) (A) | 7.5 |
| Type | Converter |
| Regulated outputs (#) | 1 |
| Switching frequency (min) (kHz) | 100 |
| Switching frequency (max) (kHz) | 2200 |
| Iq (typ) (mA) | 0.67 |
| Features | Enable, Frequency synchronization, Nonsynchronous rectification, Power good, Spread Spectrum, UVLO adjustable |
| TI functional safety category | Functional Safety-Capable |
| Duty cycle (max) (%) | 93 |
| Operating temperature range (°C) | -40 to 150 |
| Rating | Automotive |
| WQFN (RTE) | 16 | 9 mm² 3 x 3 |