Features and Benefits
- Up to 94% Efficiency
- 0.7V to 5.5V Input Range
- Up to 800mA Output
- Fixed 3.3V Output (or Adjustable from 2.5V to 5.5V)
- PWM Synchronous-Rectified Topology
- Low-Noise, Constant-Frequency Operation (1MHz)
- 0.1µA Logic-Controlled Shutdown
- Synchronizable Switching Frequency
- Adjustable Current Limit
- Adjustable Soft-Start
- 10-Pin µMAX Package
- 10-Pin 3mm x 3mm TDFN Package
The MAX1760/MAX1760H are high-efficiency, low-noise, step-up DC-DC converters intended for use in battery-powered wireless applications. They combine low quiescent supply current (100µA) with a high 1MHz operating frequency. Small external components and tiny 10-pin TDFN and µMAX® packages make this device an excellent choice for small hand-held applications. The MAX1760 is activated by a logic-low active-low ON signal while the MAX1760H is activated by a logic-high ON input.
Both devices use a synchronous-rectified pulse-width-modulation (PWM) boost topology to generate 2.5V to 5.5V outputs from a wide range of inputs, such as 1 to 3 alkaline or NiCd/NiMH cells or a single lithium-ion (Li+) cell. Proprietary Idle-Mode™ circuitry significantly improves light-load efficiency and smoothly transitions to fixed-frequency PWM operation at higher load currents.
Low-noise, forced-PWM mode is available for applications requiring constant-frequency operation at all load currents. PWM operation can also be synchronized to an external clock to protect sensitive frequency bands in communications equipment. Analog soft-start and adjustable current limit permit optimization of efficiency, external component size, and output voltage ripple.
- Digital Cordless Phones
- Handheld Instruments
- Palmtop Computers
- PCS Phones
- Personal Communicators
- Two-Way Paging
- Wireless Handsets
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.
Documentation & Resources
MAX1760 Reliability Data1/12/2023137K
Linear Regulators in Portable Applications7/22/2002
DC to DC Buck Converter Tutorial & Diagram11/29/2001
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.
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