LTC3256EMSE 高效率雙輸出
電源的典型應用電路。 LTC3256 是一款寬輸入范圍開關
電容器降壓型 DC/DC
轉換器,可產生兩個穩壓輸出:通過直接連接到
電荷泵輸出的 5V 輸出和通過低壓差 (LDO) 線性后置
穩壓器產生的 3.3V 輸出。該器件提供高達 350mA 的總輸出電流。在 12V VIN 和兩個輸出的最大負載下,與雙 LDO 穩壓器解決方案相比,功耗降低了 2W 以上
說明
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Typical Application Circuit for LTC3256EMSE High Efficiency Dual Output Power Supply. The LTC3256 is a wide input range switched capacitor step-down DC/DC converter that produces two regulated outputs: a 5V output via direct connection to the charge pump output and a 3.3V output via a low dropout (LDO) linear post-regulator. The device provides up to 350mA of total output current. At 12V VIN and maximum load on both outputs, power dissipation is reduced by over 2W compared to a dual LDO regulator solution
主要特色
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Conversion Type
DC to DC
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Input Voltage
5.5 to 38 V
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Output Voltage
3.3|5 V
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Output Current
0.1@5V|0.25@3.3V A
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Topology
Buck