Diodes AP3417B Manuel d'utilisateur

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Data Sheet
1.2A, 1.4MHz High Efficiency Synchronous DC-DC Buck Converter AP3417B
Jan. 2013 Rev. 1. 0 BCD Semiconductor Manufacturing Limited
1
General Description
The AP3417B is a 1.4MHz fixed frequency, current
mode, PWM synchronous buck (step-down) DC-DC
converter, capable of driving a 1.2A load with high
efficiency, excellent line and load regulation. The
device integrates synchronous P-channel and
N-channel power MOSFET switches with low
on-resistance. 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 manufacturers optimized for use
with the AP3417B. This feature greatly simplifies the
design of switch-mode power supplies.
The AP3417B is available in SOT-23-5 package.
Features
• Input Voltage Range: 2.5V to 5.5V
• Output Voltage: 0.6V to V
IN
• ADJ Output
• Fixed 1.4MHz Frequency
• High Efficiency up to 95%
• Output Current: 1.2A
• Current Mode Control
• 100% Duty Cycle in Dropout
• Built-in Over Current Protection
• Built-in Short Circuit Protection
• Built-in Thermal Shutdown Protection
• Built-in UVLO Function
• Built-in Soft-start
Built-in Input Over Voltage Protection (IOVP)
Applications
• Set-top Box
• Datacom
• Portable Device
Smart Phone
Figure 1. Package Type of AP3417B
SOT-23-5
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Résumé du contenu

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Data Sheet 1.2A, 1.4MHz High Efficiency Synchronous DC-DC Buck Converter AP3417B Jan

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Data Sheet 1.2A, 1.4MHz High Efficiency Synchronous DC-DC Buck Converter AP3417B Jan

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Data Sheet 1.2A, 1.4MHz High Efficiency Synchronous DC-DC Buck Converter AP3417B Jan

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Data Sheet 1.2A, 1.4MHz High Efficiency Synchronous DC-DC Buck Converter AP3417B Jan

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IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the

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Data Sheet 1.2A, 1.4MHz High Efficiency Synchronous DC-DC Buck Converter AP3417B Jan

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Data Sheet 1.2A, 1.4MHz High Efficiency Synchronous DC-DC Buck Converter AP3417B Jan

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Data Sheet 1.2A, 1.4MHz High Efficiency Synchronous DC-DC Buck Converter AP3417B Jan

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Data Sheet 1.2A, 1.4MHz High Efficiency Synchronous DC-DC Buck Converter AP3417B Jan

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Data Sheet 1.2A, 1.4MHz High Efficiency Synchronous DC-DC Buck Converter AP3417B Jan

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Data Sheet 1.2A, 1.4MHz High Efficiency Synchronous DC-DC Buck Converter AP3417B Jan

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Data Sheet 1.2A, 1.4MHz High Efficiency Synchronous DC-DC Buck Converter AP3417B Jan

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Data Sheet 1.2A, 1.4MHz High Efficiency Synchronous DC-DC Buck Converter AP3417B Jan

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