FAN49101 是一款高能效降压-升压开关模式稳压器，接受高于或低于调节输出电压的输入电压。FAN49101 使用带有同步整流的全桥结构，在 3.4 V 下调节输出时能够提供最高 2 A 的电流。FAN49101 可在步升和步降模式之间实现无缝转换，降低了输出干扰。该稳压器的输出电压和运行模式可通过 I2C 接口进行编程。在中等和轻型负载条件下，使用脉频调制 (PFM) 以节能模式运行该器件，以保持高能效。在 PFM 模式下，该零件在负载步进期间仍然能够具有卓越的瞬变响应。在中等到重型负载条件或强制 PWM 模式下，该稳压器则切换到 PWM 固定频率控制。在 PWM 模式下，该稳压器以 1.8 MHz 的标称固定频率运行，因此可减少外部组件值。
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FAN49101AUC340X
Active
Pb
A
H
P
WLCSP-20
1
260
REEL
3000
Y
Step-Up/Step-Down
Voltage Mode
2.5
5.5
3.4
2
96
1800
$0.4352
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