DC2527A-B 演示电路采用 LTM4646EY，这是一款双路 10A 或单路 20A 高效率开关模式降压电源稳压器。输入电压范围为4.5V至20V。利用 CPWR 偏置，输入电压可低至 2.375V。输出电压范围为0.6V至5.5V。对于某些 VIN、VOUT、频率和热条件，需要降额。 DC2527A-B 提供 TRACK/SS 引脚，允许用户对输出跟踪或软启动周期进行编程。该板在重负载条件下以连续导通模式运行。为了在低
负载电流下实现高效率，MODE_PLLIN
跳线可以选择不连续导通模式。 MODE_PLLIN 引脚还允许 LTM4646 与外部时钟信号（300kHz 至 1.3MHz 之间）同步。 DC2527A-B 可以选择 LTM4646 的内部和外部补偿电路
说明
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DC2527A-B, Demonstration Circuit features the LTM4646EY, a dual 10A or single 20A high efficiency, switch mode step-down power regulator. The input voltage range is from 4.5V to 20V. With CPWR bias, input voltage can be as low as 2.375V. The output voltage range is 0.6V to 5.5V. De-rating is necessary for certain VIN, VOUT, frequency and thermal conditions. The DC2527A-B offers the TRACK/SS pin allowing the user to program output tracking or soft-start period. The board operates in continuous conduction mode in heavy load conditions. For high efficiency at low load currents, the MODE_PLLIN jumper can select discontinuous conduction mode. The MODE_PLLIN pin also allows the LTM4646 to synchronize to an external clock signal (between 300kHz and 1.3MHz). The DC2527A-B has the option of choosing both internal and external compensation circuit for LTM4646
主要特色
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Conversion Type
DC to DC
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Input Voltage
4.5 to 20 V
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Output Voltage
1.2|1.5 V
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Output Current
10 A
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Efficiency
87.73 %
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Topology
Buck
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