数据手册：MAX1763 高性能、低噪声1MHz升压型DC-DC转换器 .pdf [英文Rev.2(PDF,660kB)]
{状况：生产中。}
The MAX1763 is a high-efficiency, low-noise, step-up DC-DC converter intended for use in battery-powered wireless applications. This device maintains exceptionally low quiescent supply current (110µA) despite its high 1MHz operating frequency. Small external components and a tiny package make this device an excellent choice for small hand-held applications that require the longest possible battery life.
The MAX1763 uses a synchronous-rectified pulse-width-modulation (PWM) boost topology to generate 2.5V to 5.5V outputs from a wide range of input sources, such as one to three alkaline or NiCd/NiMH cells or a single Lithium-ion (Li+) cell. Maxim's proprietary Idle Mode™ circuitry significantly improves efficiency at light load currents while smoothly transitioning to fixed-frequency PWM operation at higher load currents to maintain excellent full-load efficiency. Low-noise, forced-PWM mode is available for applications that require constant-frequency operation at all load currents. The MAX1763 may also be synchronized to an external clock to protect sensitive frequency bands in communications equipment.
The MAX1763 includes an on-chip linear gain block that can be used to build a high-power external linear regulator or as a low-battery comparator. Soft-start and current limit functions permit optimization of efficiency, external component size, and output voltage ripple.
The MAX1763 is available in a space-saving 16-pin QSOP package or a high-power (1.5W) 16-pin TSSOP-EP package.
产品关键特性
- Up to 94% Efficiency
- +0.7V to +5.5V Input Voltage Range
- 1.1V Guaranteed Startup Input Voltage
- Up to 1.5A Output
- Fixed 3.3V Output or Adjustable (2.5V to 5.5V)
- 1MHz PWM Synchronous-Rectified Topology
- 1µA Logic-Controlled Shutdown
- Analog Gain Block for Linear-Regulator or Low-Battery Comparator
- Adjustable Current Limit and Soft-Start
- 1.5W TSSOP Package Available
| 应用与使用范围
- 数字无绳电话
- 手持式仪表(PDA、掌上电脑)
- 掌上电脑
- PCS电话
- 个人通信装置
- 无线手机
|
典型工作电路
芯片订购型号
| 订购型号 | 产品状态 | 封装形式 | 工作温度 | RoHS/无铅 |
| MAX1763EEE | 生产中 | QSOP；16引脚；30.9mm²封装信息 | -40°C至+85°C | RoHS/无铅：否材料分析 |
| MAX1763EEE+ | 生产中 | QSOP；16引脚；30.9mm²封装信息 | -40°C至+85°C | RoHS/无铅：无铅材料分析 |
| MAX1763EEE+T | 生产中 | QSOP；16引脚；30.9mm²封装信息 | -40°C至+85°C | RoHS/无铅：无铅材料分析 |
| MAX1763EEE-T | 生产中 | QSOP；16引脚封装信息 | -40°C至+85°C | 参考数据资料 |
| MAX1763EUE | 生产中 | TSSOP-EP；16引脚；33.2mm²封装信息 | -40°C至+85°C | RoHS/无铅：否材料分析 |
| MAX1763EUE+ | 生产中 | TSSOP-EP；16引脚；33.2mm²封装信息 | -40°C至+85°C | RoHS/无铅：无铅材料分析 |
| MAX1763EUE+T | 生产中 | TSSOP-EP；16引脚；33.2mm²封装信息 | -40°C至+85°C | RoHS/无铅：无铅材料分析 |
| MAX1763EUE+TG069 | 生产中 | TSSOP-EP；16引脚；33.2mm²封装信息 | -40°C至+85°C | RoHS/无铅：无铅材料分析 |
| MAX1763EUE-T | 生产中 | TSSOP-EP；16引脚；33.2mm²封装信息 | -40°C至+85°C | RoHS/无铅：否材料分析 |
功能接近器件
| MAX1700 | 1节至3节电池、大功率(1A)、低噪声、升压型DC-DC转换器 |
| MAX1701 | 1节至3节电池、大功率(1A)、低噪声、升压型DC-DC转换器 |
| MAX1703 | 1节至3节电池、大功率(1.5A)、低噪声、升压型DC-DC转换器 |
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