MAX1730
MAX1730
PRODUCTION50mA, Regulated, Step-Down Charge Pump for 1.8V or 1.9V Logic
- Part Models
- 2
- 1ku List Price
- Starting From $2.30
Viewing:
Overview
- > 85% Peak Efficiency
- 50mA Guaranteed Output Current
- Dual-Mode 1.8V or 1.9V Output
- ±3% Output Voltage Accuracy
- Up to 2MHz Operating Frequency
- Small 0.22µF Capacitors
- No Inductor Required
- 2.7V to 5.5V Input Voltage Range
- Output Disconnects from Input in Shutdown Mode
- Small 10-Pin µMAX Package (1.09mm max height)
The MAX1730 regulated step-down charge pump generates up to 50mA at fixed output voltages of 1.8V or 1.9V from an input voltage in the 2.7V to 5.5V range. Specifically designed to provide high-efficiency logic supplies in applications that demand a compact design, the MAX1730 employs fractional conversion techniques to provide efficiency exceeding that of a linear regulator.
The MAX1730 operates at up to 2MHz, permitting the use of small 0.22µF flying capacitors while maintaining low 75µA quiescent supply current. Proprietary soft-start circuitry prevents excessive current from being drawn from the supply during startup, making the MAX1730 compatible with higher impedance sources such as alkaline and lithium-ion cells.
The MAX1730 is available in a space-saving 10-pin µMAX® package that is only 1.09mm high and occupies one-half the area of an 8-pin SO.
Applications
- Handheld Instruments (PDAs, Palmtops)
- Low-Voltage Logic Supplies
- PC Cards
- PDAs
- Wireless Handsets
Documentation
Data Sheet 1
Design Note 1
Technical Articles 2
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 |
|---|---|---|---|
| MAX1730EUB+ | MINI_SO | ||
| MAX1730EUB+T | MINI_SO |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Sep 19, 2018 - 1753N ASSEMBLY |
||
| MAX1730EUB+ | PRODUCTION | |
| MAX1730EUB+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareLatest Discussions
No discussions on MAX1730 yet. Have something to say?
Start a Discussion on EngineerZone®