MAX8627
PRODUCTIONLow VBATT, 20µA IQ, 1MHz Synchronous Boost Converter with True Shutdown
Ideal for DSC Motors and Backup Power
- Part Models
- 2
- 1ku List Price
- Starting From $2.12
Overview
- 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.
Applications
- Cell Phones, PDAs, MP3 Players
- DSC Motors and Backup Power
- Microprocessor/DSP Core Power
- Portable Handheld Devices
Documentation
Data Sheet 1
Technical Articles 1
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. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX8627ETD+ | 14-Lead TDFN (3mm x 3mm x 0.75mm) | ||
| MAX8627ETD+T | 14-Lead TDFN (3mm x 3mm x 0.75mm) |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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LTspice
Models for the following parts are available in LTspice:
- MAX8627
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Evaluation Kits
Evaluation Kit for the MAX8627
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