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ACE708 Datenblatt(PDF) 1 Page - ACE Technology Co., LTD.

Teilenummer ACE708
Bauteilbeschribung  300mA Iout, 0.85V startup, 1MHz, Synchronous Boost Converter
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Hersteller  ACE [ACE Technology Co., LTD.]
Direct Link  http://www.ace-ele.com
Logo ACE - ACE Technology Co., LTD.

ACE708 Datenblatt(HTML) 1 Page - ACE Technology Co., LTD.

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ACE708
                        Technology
300mA Iout, 0.85V startup, 1MHz, Synchronous Boost Converter
VER 1.2
Description
The ACE708 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 850mV, 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.
Features
Up to 95% Efficiency
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 850mV 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-23-5
Application
One to Three Cell Battery Operated Devices
Medical Instruments
Bluetooth Headsets
Flash-Based MP3 Players
Noise Canceling Headphones
Absolute Maximum Ratings
Parameter
Symbol
Max
Unit
SW Voltage
VIN
-0.3~6
V
EN, FB, OUT Voltage
-0.3~6
V
Junction to Ambient Thermal Resistance
190
OC/ W
Maximum Power Dissipation
0.45
W
Operating Temperature Range
-40~150
OC
Storage Temperature
-55~150
OC


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