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Large current, low dropout, low output ripple, small size LDO selection

user5361521
Prodigy 120 points
Other Parts Discussed in Thread: TPS7A7002, TPS7A7300

Large current, low dropout, low output ripple, small size LDO selection

Output 1.8v 1.5A， Power the CMOS sensor，The input voltage is 2.0-3.3V，Is there an LDO that is small in size, meets the conditions, and generates a small amount of heat?  Can TPS7A7002 satisfy? Is this power supply an LDO? Is the output ripple large?

  • 0
    TI__Guru**** 308311 points
    Hi
    可以用这个芯片，主要就是注意当输入电压较高时，例如3.3V输如，功耗高达2.25W, 那么散热设计就很重要了。
  • 0 回复 Johnsin Tao
    Prodigy 120 points
    I want to use 2.0V as the input and 1.8V as the output so that the LDO heats up very little，In this case, the LDO must support ultra-low dropout，vin-vout=0.2V，So it’s not very hot.
    TPS7A7300, Can you see that the TPS7A7300 chip supports 0.2V input and output voltage difference? I did not see the specific introduction about this in the data sheet . This chip should dissipate heat better than TPS7A7002