One LED White LED Driver for Lighting
使用 MaxLinear 的 SP6121 的参考设计
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依据最终产品
- Lighting
说明
- Circuit has been designed to provide 3 to 5Vin boost to White LEDs at approximately 4V output at 1.5Amps.High efficiency and 3-5Volt input dictated the choice of the controller and external components. In order to reduce the reference voltage to a low 150mV and improve efficiency, an additional IC Op-Amp (LMV321) was used to amplify the reference to 1.2V feedback voltage. The SP6121 is the synchronous buck controller that is being used as a buck/boost DC/DC controller
主要特色
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Input Voltage3 to 5 V
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Output Voltage3.9 V
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Output Current1.5 A
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Number of Derived Elements1
Featured Parts (3)
| 零件编号 | 供应商 | 类别 | 说明 | |||
|---|---|---|---|---|---|---|
|
LMV321SN3T1G | onsemi | Operational Amplifiers - Op Amps | Op Amp Single Low Voltage Amplifier R-R O/P 5V 5-Pin TSOP T/R | 买入 | |
|
LMV321SQ3T2G | onsemi | Operational Amplifiers - Op Amps | Op Amp Single Low Voltage Amplifier R-R O/P 5V 5-Pin SC-88A T/R | 买入 | |
|
LMV321AS5X-G | onsemi | Operational Amplifiers - Op Amps | GENERAL PURPOSE, LOW VOLTAGE, RAIL-TO-RAIL OUTPUT AMPLIFIERS | 买入 | |