特点
Ultralow Power: 8μA Quiescent Current
Regulated Output Voltages: 3.3V ±4%, 5V ±4%, ADJ
V
IN
Range:
1.8V to 4.4V (LTC3221-3.3)
2.7V to 5.5V (LTC3221-5)
Output Current: Up to 60mA
No Inductors Needed
Very Low Shutdown Current: <1μA
Shutdown Disconnects Load from V
IN
Burst Mode Control
Short-Circuit Protected
Solution Profi le < 1mm
Tiny 2mm × 2mm 6-Pin DFN Package
典型应用
典型应用
描述
The LTC3221 family includes fi xed 5V and 3.3V output versions plus an adjustable version. All parts operate as Burst Mode? switched capacitor voltage doublers to achieve ultralow quiescent current. The chips use a controlled current to supply the output and will survive a continuous short-circuit from VOUT to GND. The FB pin of the adjustable LTC3221 can be used to program the desired output voltage.
The LTC3221 family is available in a low profi le (0.75mm) 2mm × 2mm 6-pin DFN package.