The MAX629 low-power DC-DC converter features an internal N-channel MOSFET switch and programmable current limiting. It is designed to supply positive or negative bias voltages up to ±28V from input voltages in the 0.8V to VOUT range, and can be configured for boost, flyback, and SEPIC topologies. The MAX629's current-limited pulse-frequency-modulation (PFM) control scheme provides high efficiency over a wide range of load conditions. An internal, 0.5A N-channel MOSFET switch reduces the total part count, and a high switching frequency (up to 300kHz) allows for tiny surface-mount magnetics. The MAX629's combination of low supply current, logic-controlled shutdown, small package, and tiny external components makes it an extremely compact and efficient high-voltage biasing solution that's ideal for battery-powered applications. The MAX629 is available in an 8-pin SO package.
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| 语言 | 下载文件 | 备注 |
|---|---|---|
| 英文 | MAX629.pdf | Rev 1; 06/1997 |
| Part Number | VIN (V) | VIN (V) | IOUT1 (A) | Output Adjust. Method | DC-DC Outputs | Alternate Topology | Oper. Freq. (kHz) | Switch Type | Package/Pins | Budgetary Price |
|---|---|---|---|---|---|---|---|---|---|---|
| min | max | max | See Notes | |||||||
| MAX629 | 2.7 | 5.5 | 0.5 | Resistor | 1 |
| 300 | Internal | SOIC(N)/8 | $3.16 @1k |
| Part Number | VIN (V) | VIN (V) | IOUT1 (A) | Output Adjust. Method | Switch Type | ICC (mA) | Shutdown Mode Supply Current (µA) | Shutdown Mode Supply Current (µA) | DC-DC Outputs | Oper. Freq. (kHz) | Package/Pins | Budgetary Price |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | max | typ | typ | max | See Notes | ||||||
| MAX629 | 2.7 | 5.5 | 0.5 | Resistor | Internal | 0.08 | 0.04 | 1 | 1 | 300 | SOIC(N)/8 | $3.16 @1k |
| 型号 | 状况 | 推荐替代产品 | 封装 | 温度 | RoHS/无铅 |
|---|---|---|---|---|---|
| MAX629C/D | 停止供货 | DICE SALES,；NA引脚；DICE； | 0°C至+70°C | 参考数据资料 | |
| MAX629ESA | 停止供货 | MAX629ESA+ | SOIC(N),；8引脚；30.9mm² | -40°C至+85°C | RoHS/无铅：否 |
| MAX629ESA+ | 生产中 | SOIC(N),；8引脚；30.9mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX629ESA+G071 | 生产中 | SOIC(N),；8引脚；30.9mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX629ESA+T | 生产中 | SOIC(N),；8引脚；30.9mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX629ESA+TG071 | 生产中 | SOIC(N),；8引脚；30.9mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX629ESA-T | 停止供货 | MAX629ESA+T | SOIC(N),；8引脚；30.9mm² | -40°C至+85°C | RoHS/无铅：否 |
