升压稳压器

ETA1066

ETA1066 is a two-channel PMU that includes a 12V high efficiency step-up converter and an 12V LDO. The boost converter is capable of providing up to 12V output with 2.2A input current from a single cell of two-cell series Li-ion battery. Once it's started up, the internal circuitry is powered from the LDO output. Therefore, even when the input voltage drops to a very low level, the output still maintains stable regulation down to 0.5V input. The LDO is powered from an independent pin LDOIN and is capable of delivering up to 150mA output current. Independent of the boost enable control, the LDO is still operates even when the boost is turned off, as the power comes from input through the external Schottky diode.

With all the features, the ETA1066 is available in a QFN2x2-8L package

FEATURES
Wide startup input range: lnput as low as 1.8V to 13V
Maintain output when input voltage falling down to 0.5V
13.7V Max output voltage
2.2A input currentlimit for 12V Boost
Up to 90% Efficiency
Integrated LDO up to 150mA
6μA low lq LDO
Current Mode control boost
Independent Logic Control Shutdown for boost
Thermal shutdown

APPLICATIONS
E-Cigarette
Backup Power
Toy
 
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