Fixed 5 V rail from a charge pump — no inductor needed
The TPS60151DRVR: This fixed-output topology uses two external flying capacitors and a reservoir cap — no inductor required — so the BOM stays small and the layout avoids the noise coupling you get from a switching inductor. The 1.5 MHz switching frequency keeps the external capacitors small — typically 1 µF ceramic — while the output ripple stays within a few tens of millivolts at full load. A layout engineer should place the flying caps close to the IC and run the output trace directly to the load to minimise parasitic inductance.
Package and thermal design
Without it, the junction temperature rises faster at 140 mA continuous output — the derating curve in the datasheet shows how much copper area you need for full current at 85 °C ambient. The exposed pad also serves as the ground return for the charge pump — keep the via count under the pad high enough to carry the switching current without thermal cycling stress.
Active lifecycle — no LTB window to track
RoHS3 compliant, so no lead-exemption expiry to schedule.