Features and Benefits
- 1MHz PWM Switching Frequency
- True Shutdown Output
- Up to 95% Efficiency
- 1.0A Guaranteed Output Current
- Soft-Start Eliminates Inrush Current
- 20µA (typ) Quiescent Current
- 0.1µA Logic-Controlled Shutdown
- Internal Synchronous Rectifier
- Internal Compensation
- Adjustable Current Limit
- Low-Noise Antiringing Feature
- Tiny 14-Pin, 3mm x 3mm, TDFN Package
The MAX8627 step-up converter is a high-efficiency, low-quiescent current, synchronous boost converter with True Shutdown™ and inrush current limiting. The MAX8627 generates any boosted output voltage from 3V to 5V from either a 2-cell NiMH/NiCd or a single-cell Li+/Li polymer battery.
Quiescent current is only 20µA (typ), and at light loads the converter pulses only as needed for best efficiency. At higher loads, PWM mode maintains fixed 1MHz operation for lowest noise and ripple.
The MAX8627 includes an internal soft-start to limit inrush current to a maximum of 500mA. Additional features include True Shutdown, internal compensation, and adjustable current limit. The MAX8627 is available in a tiny 3mm x 3mm TDFN package and is ideal for use in handheld devices such as DSCs, PDAs, and smartphones.
- Cell Phones, PDAs, MP3 Players
- DSC Motors and Backup Power
- Microprocessor/DSP Core Power
- Portable Handheld Devices
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
MAX8627 Reliability Data1/12/202331K
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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