Create a design and simulate using EE-Sim tools: MAX38640
The MAX38640/1/2/3 are nanoPower family of ultra-low 330nA quiescent current buck (step-down) DC-DC converters operating from 1.8V to 5.5V input voltage and supporting load currents of up to 175mA, 350mA, 700mA with peak efficiencies of 96%. While in shutdown, there is only 5nA of shutdown current. The devices offer ultra-low quiescent current, small total solution size, and high efficiency throughout the load range. The MAX38640/1/2/3 are ideal for battery applications where long battery life is a must.
The MAX38640/1/2/3 family utilizes a unique control scheme that allows ultra-low quiescent current and high efficiency over a wide output current range. MAX38642 excludes active discharge resistor in shutdown which allows the output to be regulated or held high by another source or by the charged output capacitor.
The MAX38640/1/2/3 devices are offered in a space-saving 1.42mm x 0.89mm 6-pin wafer-level package (WLP) (2 x 3 bumps, 0.4mm pitch), as well as a 2mm x 2mm, 6-pin μDFN package. All parts are specified from -40°C to +85°C.
Also see: nanoPower Technology
Design Solution: Make Your Small Asset Tracker Last Longer
Feature
- Extends Battery Life
- 330nA Ultra-Low Quiescent Supply Current
- 5nA Shutdown Current
- 96% Peak Efficiency and Over 88% at 10μA
- Easy to Use – Addresses Popular Operation
- 1.8V to 5.5V Input Range
- Single Resistor Adjustable VOUT from 0.7V to 3.3V (A-Option)
- Preprogrammed VOUT from 0.5V to 5.0V (B-Option)
- ±1.75% Output Voltage Accuracy
- Up to 175mA/350mA/700mA Load Current
- Protects System in Multiple Use Cases
- Reverse-Current Blocking in Shutdown
- Optional Active Discharge Feature
- Reduces Size and Increases Reliability
- -40°C to +85°C Temperature Range
- 2mm x 2mm 6-pin μDFN Package
- 1.42mm x 0.89mm, 0.4mm Pitch 6-pin (2 x 3) WLP
Applications
- Portable Space-Constrained Consumer Products
- Single Li-ion and Coin Cell Battery Products
- Wearable devices, Ultra-Low-Power IoT, NB IoT, and BLE
- Wired, Wireless, Industrial Products
