Overview
Features and Benefits
- 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
Product Details
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.
Applications
- Battery-Powered Applications
- High-Efficiency DC-DC Converters
- Portable Communicators
- Positive LCD-Bias Generators
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
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Circuit Connection Adds Current-Mode Operation to PFM Boost Converters9/10/2002
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Simple Change Improves PFM Boost-Controller Efficiency4/15/2002
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Extend Battery Life with Dual Power Supply for Wallcube/Battery-Powered Systems1/31/2002
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Switch-Mode Converter Starts With Full Load Connected9/1/1998
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Highly Efficient SEPIC Switching Regulator Generates 3V from Multiple Cells11/21/1996
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
PCN-PDN Information
Support & Discussions
Sample & Buy
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Buy Now Pricing
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List Pricing
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Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
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