200 mA lineære regulatorer med auto low-power mode

LDO'er fra Texas Instruments tilbyder særdeles lav hvilestrøm

Texas Instruments Incorporated (TI) has introduced a family of 200-mA, low dropout regulators (LDOs), which offer an auto low-power mode that combines ultra-low quiescent current of less than 8 uA with fast transient response while maintaining low noise and a high power supply rejection ratio (PSRR).

With 70 percent lower quiescent current than existing solutions, the new LDOs help increase battery runtime without sacrificing performance in noise-sensitive applications, such as smart phones, MP3 players, RF modules, remote controls, ZigBee network systems and handheld consumer devices.
 
Typical high-performance LDOs require the load quiescent current to be 25 uA or less. Auto low-power mode allows the TPS727xx to achieve less than 8 uA without an additional mode pin and automatically switches to and from low power depending on load current.

In addition, the use of auto low-power mode eliminates the need to modify software drivers to control the mode pin, which speeds and simplifies the design process. It also reduces cost by eliminating the need for a general purpose input/output (GPIO) pin and overhead firmware.

For product details see: www.ti.com/tps727-preu.