MOUNT PROSPECT, Ill. Toko America's TK651xx series, a dc/dc converter driven from either single- or dual-cell battery supplies (minimum input 0.9 V), provides regulated 2.7-, 3- or 3.3-V outputs for portable systems. Output voltage, which is laser-trimmed, is monitored by an internal comparator and provides a reset signal if the output falls below a minimum specified level.
Available in a small SOT-23 surface-mount package, and using five external components, the chip provides up to 30-mA output current in single-cell applications. By selecting the proper inductor size and value, the user can optimize efficiency for a specific current requirement.
To aid in evaluation, Toko offers an application board configuration for single-cell input with 3-V, 4-mA output. Pricing on the TK651xx starts at about 89 cents each in lots of 1,000.
Call (847) 297-0070
EETInfo No. 615