ACE707C Datasheet, PDF (1/9 Pages) ACE Technology Co., LTD. – 0.9 V startup, 1MHz, 300mA Iout, Low Iq, Synchronous Boost Converter

ACE707C
0.9 V startup, 1MHz, 300mA Iout, Low Iq, Synchronous Boost Converter
Description
The ACE707C is a step-up converter that provides a boosted output voltage from a low voltage source.
Because of its proprietary design, it starts up at a very low input voltage down to 0.9V, and only
consumes 15uA at standby, making it an ideal choice for single cell alkaline/NiMH battery operations.
A switching frequency of 1MHz minimizes solution footprint by allowing the use of tiny, low profile
inductors and ceramic capacitors. The current mode PWM design is internally compensated, reducing
external parts count. ACE707C is available in SOT-23 and SOT89-3 Package.
Features
• Efficiency up to 94%@Vin=3.3V, Vout=5.5V
• Typical 15uA standby current
• 1MHz Switching Frequency allows small inductor and output cap
• Input boost-strapping allows using small or no input cap
• Low Vin Start-up Voltage down to 0.9V Ideal for Single Alkaline Cell operations
• Maximum Output Current up to 300mA
• Low Noise PWM control
• Internally Compensated Current Mode Control
• Internal Synchronous Rectifier
• Logic Control Shutdown (IQ<1uA)
• Available in SOT-23 and SOT89-3
Application
• One to Three Cell Battery Operated Devices
• Medical Instruments
• Bluetooth Headsets
• Flash-Based MP3 Players
• Noise Canceling Headphones
Absolute Maximum Ratings
Parameter
SW Voltage
OUT Voltage
Max Operating Junction Temperature(Tj)
Maximum Power Dissipation
SOT-23
SOT89-3
Ambient Temperature(Ta)
Value
-0.3 ~ 6V
-0.3 ~ 6V
125°C
450mW
500mW
-40°C– 85°C
Storage Temperature(Ts)
-55°C - 150°C
Lead Temperature & Time
260°C, 10S
Note: Exceed these limits to damage to the device.
Exposure to absolute maximum rating conditions may affect device reliability.
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