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MyMaxim 订阅产品详情
主要特征
应用/用途
Parametric specs for Charge Pumps
| Topology | Doubler Dual Output Inverter Unregulated |
| VIN (V) (min) | 1.75 |
| VIN (V) (max) | 6 |
| IOUT (A) (typ) | 0.018 |
| Unadj. VOUT (V) | ±2xVIN |
| IQ (mA) (max) | 1.05 |
| Switching Frequency (kHz) | 24 |
| Oper. Temp. (°C) | -40 to +85 |
| Package/Pins | UMAX/8 |
| Budgetary Price (See Notes) | 1.44 |
缩小
简化框图
Technical Docs
| 数据资料 | 紧凑的、双输出电荷泵 | May 01, 1997 | |
| 应用笔记 | DAC供电的电荷泵产生可调负电压 | ||
| 应用笔记 | How Dual-Supply Analog Switches Can Operate with a Single 3V or 5V Supply | ||
| 设计指南 | Automatic Test Equipment on a Budget |
参量
Parametric specs for Charge Pumps
| Topology | Doubler Dual Output Inverter Unregulated |
| VIN (V) (min) | 1.75 |
| VIN (V) (max) | 6 |
| IOUT (A) (typ) | 0.018 |
| Unadj. VOUT (V) | ±2xVIN |
| IQ (mA) (max) | 1.05 |
| Switching Frequency (kHz) | 24 |
| Oper. Temp. (°C) | -40 to +85 |
| Package/Pins | UMAX/8 |
| Budgetary Price (See Notes) | 1.44 |
主要特征
- 1.11mm-High µMAX Package
- Compact: Circuit Fits in 0.08in²
- Requires Only Four Capacitors
- Dual Outputs (positive and negative)
- +1.5V to +6.0V Input Voltage
- 20kHz (min) Frequency (above the audio range)
应用/用途
- 数据采集
- LCD面板表
- 低成本分割电源，用于低压系统
- 无线手机中的低电压GaAsFET偏置
- 用于模拟电路的降压电源
- 3节镍基电池或1节Li+电池降压电源
- VCO和GaAsFET电源
描述
The MAX865 is a CMOS charge-pump DC-DC converter in an ultra-small µMAX® package. It produces positive and negative outputs from a single positive input, and requires only four capacitors. The charge pump first doubles the input voltage, then inverts the doubled voltage. The input voltage ranges from +1.5V to +6.0V.
The internal oscillator is guaranteed to be between 20kHz and 38kHz, keeping noise above the audio range while consuming minimal supply current. A 75Ω output impedance permits useful output currents up to 20mA.
The MAX865 comes in a 1.11mm-high, 8-pin µMAX package that occupies half the board area of a standard 8-pin SOIC. For a device with selectable frequencies and logic-controlled shutdown, refer to the MAX864 data sheet.
The internal oscillator is guaranteed to be between 20kHz and 38kHz, keeping noise above the audio range while consuming minimal supply current. A 75Ω output impedance permits useful output currents up to 20mA.
The MAX865 comes in a 1.11mm-high, 8-pin µMAX package that occupies half the board area of a standard 8-pin SOIC. For a device with selectable frequencies and logic-controlled shutdown, refer to the MAX864 data sheet.
Technical Docs
| 数据资料 | 紧凑的、双输出电荷泵 | May 01, 1997 | |
| 应用笔记 | DAC供电的电荷泵产生可调负电压 | ||
| 应用笔记 | How Dual-Supply Analog Switches Can Operate with a Single 3V or 5V Supply | ||
| 设计指南 | Automatic Test Equipment on a Budget |
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