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ACE721AADJBN+H 数据表(PDF) 1 Page - ACE Technology Co., LTD. |
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ACE721AADJBN+H 数据表(HTML) 1 Page - ACE Technology Co., LTD. |
1 / 8 page ACE721A Technology 1.2MHz, 800mA SYNCHRONOUS DC-DC BUCK CONVERTER VER 1.3 1 Description The ACE721A is a 1.2MHz fixed frequency, current mode, PWM synchronous buck (step-down) DC-DC converter, capable of driving a 800mA load with high efficiency, excellent line and load regulation. The device integrates a main switch and a synchronous switch without an external Schottky diode. It is ideal for powering portable equipment that runs from a single Li-ion battery. A standard series of inductors are available from several different manufactures optimized for use with the ACE721A. This feature greatly simplifies the design of switch-mode power supplies. This IC is available in SOT-23-5 packages. Features • High Efficiency: up to 95% • Output Current: 800mA • Input Voltage Range: 2.5V to 5.5V • Fixed 1.2MHz Frequency • Current Mode Control • 100% Duty Cycle in Dropout • Built-in Short Circuit Protection • Built-in Thermal Shutdown Function • Built-in Current Limit Function • Shutdown Current: <1μA Application • GPS • WiFi Card • Portable Media Player • Digital Still and Video Cameras Absolute Maximum Ratings Parameter Symbol Value Unit Input Voltage VIN -0.3 to 6 V Feedback Voltage VFB -0.3 to VIN+0.3 V EN Pin Voltage VEN -0.3 to VIN+0.3 V SW Pin Voltage VSW -0.3 to VIN+0.3 V Thermal Resistance θJA SOT-23-5 250 ℃ /W Operating Junction Temperature TJ 125 ℃ Storage Temperature TSTG -65 to 150 ℃ |
类似零件编号 - ACE721AADJBN+H |
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类似说明 - ACE721AADJBN+H |
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