TPS62730

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS62730, TPS62732, TPS62733 SLVSAC3D – MAY 2011 – REVISED DECEMBER 2014 TPS6273x Step-Down Converter With Bypass Mode for Ultra Low-Power Wireless Applications 1 Features 1 Input Voltage Range VIN From 1.9 V to 3.9 V Typ. 30-nA Ultra Low-Power Bypass Mode Typ. 25-μA DC-DC Quiescent Current Internal Feedback Divider Disconnect Typical 2.1-Ω Bypass Switch Between VIN and VOUT Automatic Transition from DC-DC to Bypass Mode Up to 3-MHz Switch Frequency Up to 95% DC-DC Efficiency Open-Drain Status Output STAT Output Peak Current up to 100 mA Fixed Output Voltages 1.9 V, 2.05 V, 2.1 V, 2.3 V Small External Output Filter Components 2.2 μH and 2.2 μF Optimized For Low Output Ripple Voltage Small 1 × 1.5 × 0.6-mm3 USON Package 12-mm2 Minimum Solution Size 3 Description The TPS62730 is a high frequency synchronous stepdown DC-DC converter optimized for ultra low-power wireless applications. The device is optimized to supply TI's Low-Power Wireless sub 1-GHz and 2.4GHz RF transceivers and System-On-Chip (SoC) solutions. The TPS62730 reduces the current consumption drawn from the battery during TX and RX mode by a high efficient step-down voltage conversion. The device provides an output current of up to 100 mA and allows the use of tiny and low-cost chip inductors and capacitors. With an input voltage range of 1.9 V to 3.9 V, the device supports Liprimary battery che...