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TLV61220: how to choose the Choke when VIN & Vout is too close (minimum duty work)?

Part Number: TLV61220
Other Parts Discussed in Thread: TPS61099

Hi Team, 

I see another thread about below question and feedback,

  • May I know what is the minimum duty for this device?

    The TLV61220 works in hysteretic current operation. The current ripple is 200mA typically. If you choose a proper inductance, it won't reach the minimum turn on time. 

https://e2e.ti.com/support/power-management/f/power-management-forum/827879/tlv61220-tlv61220-about-the-minimum-duty?tisearch=e2e-sitesearch&keymatch=TLV61220%20duty#

So how to choose Choke with below spec requirement? Can TLV61220 can support below spec?

Input: 4.4V

Ouput: 4.5V

Output current: 120mA

Thank you !

Kai