Active-Semi ACT6308
The ACT6308 is a high efficiency synchronous step-up DC/DC converter that consumes just 17µA of quiescent supply current using only three external components. This device achieves a typical startup voltage of just 1V, making it ideal for applications operating from 1 or 2 alkaline cells. This device incorporates an internal synchronous rectifier, and achieves excellent peak efficiency of up to 89% and features a proprietary control scheme that ensures high efficiency over a wide load current range.FEATURES
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● 1V Typical Startup Voltage Up to 89% Efficiency Fully Integrated Power Stage Fixed 3.3V/5V or Adjustable Output Voltage NanoStandbyTM Shutdown Mode Tiny SOT23-5 Package − RoHS Compliant Package
GENERAL DESCRIPTION
The ACT6308 features pin-selectable output voltages of 3.3V or 5V, or it can also be set externally to any voltage between 2V and 5V. The ACT6308 is available in a tiny SOT23-5 package.APPLICATIONS
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● Hand-Held Devices One to Three Cell Battery Operated Devices PDAs Cellular Phones Digital Cameras GPS TYPICAL APPLICATION CIRCUIT Efficiency vs. Output Current VIN L 2.2µH LX OUT VOUT 3.3V 1.00 ACT6308-001 EN C1 2.2µF G FB C2 4.7µF Efficiency (%) ENABLE ACT6308 0.90 VIN = 2.4V 0.80 0.70 VIN = 1.8V 0.60 0.50 VIN = 1.5V VOUT = 3.3V FB = GND 10 100 1000 Pb-free 0.1 1.0 Output Current (mA) Innovative Products. Active Solutions. -1- Copyright © 2008 Active-Semi, Inc. ACT6308 Rev PrB, 20-Feb-08 ORDERING INFORMATION PART NUMBER ACT6308UC-T TEMPERATURE RAN...