Found 4 alternatives for TPS61121PW by Rochester Electronics, LLC. Pmic Power Management Specialized — 16-TSSOP (0.173", 4.40mm Width).
320MA VOLTAGE DOUBLER
IC BOOST CONV DUAL-OUT 16-TSSOP
IC BOOST CONV DUAL-OUT 16-TSSOP
IC BOOST CONV DUAL-OUT 16-TSSOP