MAX1672

PRODUCTION

Step-Up/Down DC-DC Converter in QSOP Package

Compact, Low-Noise, Transformerless Step-Up/Down Regulator with Single Small Inductor Has Low Output Ripple

Data Sheet (Rev. 2)

Part Models: 2
1ku List Price: Starting From $4.12

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Part Details

Step-Up/Down Voltage Conversion
1.8V to 11V Input Range
3.3V/5V or Adjustable Output Voltage Range
Output Current:
- 300mA at 5V (V_IN > 2.5V)
- 150mA at 5V (V_IN > 1.8V)
Smaller Inductor than SEPIC and Flybacks
Load Disconnects from Input in Shutdown
Supply Current from Battery:
- 85µA (No-Load)
- 0.1µA (Shutdown)
PGI/PGO-bar Low-Battery Comparator
16-Pin QSOP Package (Same Footprint as 8-pin SO)
No External FETs Required
Thermal and Short-Circuit Protection

Part Models: 2
1ku List Price: Starting From $4.12

Documentation

Data Sheet 1

MAX1672: Step-Up/Down DC-DC Converter in QSOP Package Data Sheet (Rev.2) 12/10/2002

Design Note 1

Step-Up/Step-Down Converter Features Ultra-Low Quiescent Current 09/18/2003

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
MAX1672EEE+	16-QSOP-150_MIL	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX1672EEE+T	16-QSOP-150_MIL	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN
No Match Found
Jan 24, 2019 - 1746N ASSEMBLY
		pcn_1746n
MAX1672EEE+	PRODUCTION
MAX1672EEE+T	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Hardware Ecosystem

Parts	Product Life Cycle	Description
Boost Regulators & Controllers 1
MAX710	PRODUCTION	3.3V/5V or Adjustable, Step-Up Step-Down DC-DC Converters

Evaluation Kits

Evaluation Kit for the MAX1672

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Features and Benefits

Step-Up/Down Voltage Conversion
1.8V to 11V Input Range
3.3V or 5V Selectable Output Voltage
Adjustable Output Voltage (1.25V to 5.5V)
Load Disconnects from Input in Shutdown
Up to 300mA Output Current
No External FETs Required
0.1µA Typical IC Shutdown Current
Low-Battery Comparator
16-Pin QSOP Package (same footprint as 8-pin SO)
Surface-Mount Components
Fully Assembled and Tested

Product Details

The MAX1672 evaluation kit (EV kit) integrates a step-up switching converter with a linear-regulator output to provide step-up/down voltage conversion. It accepts a 1.8V to 11V input and converts it to a 3.3V or 5V output for currents up to 300mA. The EV kit is optimized for battery applications where the input varies above and below the regulated output voltage. It provides ultra-low quiescent current and high efficiency for maximum battery life. Another benefit of the low-dropout linear post-regulator is that it reduces high-frequency ripple.

The MAX1672 EV kit is a fully assembled and tested surface-mount circuit board. With minimal modification, it can also be used to evaluate other output voltages. Additional pads on the board accommodate external feedback resistors for setting different output voltages.

Applications

2-Cell to 4-Cell AA Alkaline Handheld Equipment
3.3V and Other Low-Voltage Systems
Battery-Powered Devices with AC Input Adapters
Digital Still Cameras
Single-Cell, Lithium-Powered Portable Devices

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