TPS61046 28-V Output Voltage Boost Converter in WCSP Package

The TPS61046 is a highly integrated boost converter 1. Input voltage range: 1.8 V to 5.5 V, 1.6 V post-design applications requiring high voltage and startup tiny solution size, such as PMOLED panels and sensors etc. Output voltage up to 28 V module. The TPS61046 integrates a 30-volt power? Integrated power diode and isolation switch switch, input/output isolation switch and power diode. It can output up to 28 volts from the input of a Li+ battery or ~900mA (typ) switching current of two alkaline batteries in series. • At 3.6V input and 12V, the TPS61046 is up to 85% efficient and has a switching frequency of 1.0 MHz. This allows the use of small external ~500-nA ultra-low shutdown current components. The TPS61046 has a built-in default ?±2% output voltage accuracy 12-V output voltage setting by connecting the FB pin ? light-load power saving operation mode to the VIN pin. Therefore, it only requires three external components to obtain a 12-V output voltage. Together with the ? internal 10-ms soft-start time WCSP package, the TPS61046 provides a very small ? true disconnect between input and output overall solution size. The TPS61046 has a typical switch current limit of 900 mA during shutdown. Built-in 10ms soft start, output short circuit protection time, minimize inrush current.

The TPS61046 is a highly integrated boost converter for applications requiring high voltage and small form factor solutions such as PMOLED panel power supplies and sensor modules. The TPS61046 integrates a 30-volt power switch, input/output isolation switch, and power diodes. It can output up to 28 volts from the input to a Li+ battery or two alkaline batteries in series.

A common problem with traditional boost regulators is the conduction path from input to output even when the power switch is off. This results in three problems: inrush current during startup, output leakage current during shutdown, and excessive overload current. In the TPS61046, the isolation switch is closed in shutdown mode and overload conditions, thereby opening the current path. Therefore, the TPS61046 can truly disconnect the load from the input voltage and minimize leakage current in shutdown mode.

The TPS61046 operates at 1.0 MHz. This allows the use of small external components. The TPS61046 has an internal default 12-V output voltage setting by connecting the FB pin to the VIN pin. Therefore, it only requires three external components to obtain a 12-V output voltage. Together with the WCSP package, the TPS61046 provides a very small overall solution size. The TPS61046 has a typical switch current limit of 900mA. It has a built-in soft-start time of 10ms to minimize inrush current. The TPS61064 also implements output short circuit protection, output overvoltage protection and thermal shutdown