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主要特征
应用/用途
Parametric specs for Step-Up Switching Regulators
| VIN (V) (min) | 1.8 |
| VIN (V) (max) | 16.5 |
| VOUT1 (V) (min) | 3 |
| VOUT1 (V) (max) | 16.5 |
| IOUT1 (A) (max) | 1 |
| Switch Type | External |
| Preset VOUT (V) | 5 |
| Output Adjust. Method | Resistor |
| ICC (mA) (typ) | 0.085 |
| Shutdown Mode Supply Current (µA) (max) | 5 |
| # DC-DC Outputs | 1 |
| Switching Frequency (kHz) | 300 |
| Package/Pins | PDIP/8 SOIC (N)/8 |
| Budgetary Price (See Notes) | 2.22 |
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参量
Parametric specs for Step-Up Switching Regulators
| VIN (V) (min) | 1.8 |
| VIN (V) (max) | 16.5 |
| VOUT1 (V) (min) | 3 |
| VOUT1 (V) (max) | 16.5 |
| IOUT1 (A) (max) | 1 |
| Switch Type | External |
| Preset VOUT (V) | 5 |
| Output Adjust. Method | Resistor |
| ICC (mA) (typ) | 0.085 |
| Shutdown Mode Supply Current (µA) (max) | 5 |
| # DC-DC Outputs | 1 |
| Switching Frequency (kHz) | 300 |
| Package/Pins | PDIP/8 SOIC (N)/8 |
| Budgetary Price (See Notes) | 2.22 |
主要特征
- 1.8V to 16.5V Input Range
- 85% Efficiency for 30mA to 1.5A Load Currents
- Up to 10W Output Power
- 110µA Max Supply Current
- 5µA Max Shutdown Current
- Preset 5V or Adjustable Output (3V to 16.5V)
- Current-Limited PFM Control Scheme
- Up to 300kHz Switching Frequency
- Evaluation Kit Available
应用/用途
- 电池供电应用
- 高效DC-DC转换器
- 便携式通信装置
- LCD正偏置发生器
描述
The MAX608 low-voltage step-up controller operates from a 1.8V to 16.5V input voltage range. Pulse-frequency-modulation (PFM) control provides high efficiency at heavy loads, while using only 85µA (typical) when operating with no load. In addition, a logic-controlled shutdown mode reduces supply current to 2µA typical. The output voltage is factory-set at 5V or can be adjusted from 3V to 16.5V with an external resistor divider.
The MAX608 is ideal for two- and three-cell battery-powered systems. An operating frequency of up to 300kHz allows use with small surface-mount components.
The MAX608 operates in "bootstrapped" mode only (with the chip supply, OUT, connected to the DC-DC output). For a 12V output without external resistors, or for nonbootstrapped applications (chip supply connected to input voltage), refer to the pin-compatible MAX1771. The MAX608 is available in 8-pin DIP and SO packages.
The MAX608 is ideal for two- and three-cell battery-powered systems. An operating frequency of up to 300kHz allows use with small surface-mount components.
The MAX608 operates in "bootstrapped" mode only (with the chip supply, OUT, connected to the DC-DC output). For a 12V output without external resistors, or for nonbootstrapped applications (chip supply connected to input voltage), refer to the pin-compatible MAX1771. The MAX608 is available in 8-pin DIP and SO packages.
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