Here is a review of a HP S700 SSD based on an H6008 controller (remarked Silicon Motion SM2258XT):
https://www.tomshardware.com/reviews/hp-s700-ssd-dramless,5118.htmlHere are the hi-res photos of the PCB:
https://cdn.mos.cms.futurecdn.net/BHs5XhVPvF47Gc4uiuu82Z.jpghttps://cdn.mos.cms.futurecdn.net/6hFHxCLddWDALjEDfbRhwc.jpghttps://cdn.mos.cms.futurecdn.net/Q5Y9FJaro8NuG8kZrx7jLo.jpghttps://cdn.mos.cms.futurecdn.net/GWfC2NkpXKpLocycH2b4BC.jpgU5 appears to be a 1.8V LDO regulator.
RT9193-18GB, Richtek, 1.8V, 300mA, Ultra-Low Noise, Ultra-Fast CMOS LDO Regulator, marking DC=, SOT-23-5:
https://www.richtek.com/assets/product_file/RT9193/DS9193-18.pdf"ANCD" would be a MOSFET or BJT.
"ZY6UA" appears to be a dual switchmode stepdown DC-DC converter. Other PCBs have a "ZY7xx" chip in the same place, so it would appear that the part code is "ZY", and the next 3 characters are Year/Week/Something.
The "29" chip appears to be a single switchmode stepdown DC-DC converter. Other PCBs differ in the second and third groups of characters, so "29" must be the part code.
Here is a different PCB with the same ICs:
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