TPS60400DBVR

TPS60400DBVR is the tape-and-reel SOT-23-5 (DBV) ordering code for the Texas Instruments TPS60400 unregulated charge-pump voltage inverter, listed by TI as ACTIVE in the current package appendix (SLVS324 Rev. C). Its switching frequency is variable - 50 kHz to 250 kHz under the PowerSave scheme - rather than one fixed frequency: the fixed-frequency 250 kHz operating point belongs to the TPS60403 family member also listed in this catalog, and the two codes must not be quoted interchangeably. The TPS60400 runs from a 1.6 V to 5.5 V supply, delivers up to 60 mA of output current, draws 65 µA typical quiescent current and needs only three 1 µF ceramic capacitors. The selection point is the smallest negative rail: op-amp and interface bias in handheld equipment gets an inverting supply from five pins and three capacitors, with the frequency folding back at light load to save battery. Selection advice: because the output is unregulated and the frequency varies with load, budget the negative-rail tolerance and the ripple spectrum at the actual load point; designs that need a fixed switching frequency should be quoted on the fixed-frequency family code instead. Parameters verified against the TI TPS60400 datasheet SLVS324 Rev. C (package appendix and device characteristics).