Dual synchronous buck for tight board budgets
The LM3370TL-3806/NOPB is a dual-output synchronous step-down converter from Texas Instruments, packing two 600 mA rails into a 20-bump DSBGA package. The synchronous rectifier means the external Schottky diode is eliminated; the internal low-side FET handles the catch, keeping the BOM count low for space-constrained portable designs.
Lifecycle reality — obsolete, not gone
Texas Instruments lists the LM3370TL-3806/NOPB as Obsolete. The 20-DSBGA footprint is specific; a board spin would be required to migrate to a different regulator.
Package and temperature grade
Housed in a 20-WFBGA (wafer-level ball grid array) with a 20-DSBGA supplier device code, this part is surface-mount only. The operating temperature range is -30°C to 85°C (TA), covering most commercial and industrial indoor environments but not extended automotive or under-hood duty. Tape & Reel packaging — store the reels dry; the BGA's moisture sensitivity level should be confirmed from the TI packing label before reflow.