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主要特征
应用/用途
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主要特征
- Extends Battery Life
- 390nA Ultra-Low Quiescent Supply Current
- 5nA Shutdown Current
- 95% Peak Efficiency and over 85% at 10μA
- Easy to Use—Addresses Popular Operation
- 1.8V to 5.5V Input Range
- Single Resistor-Adjustable VOUT from 1.2V to 3.3V (MAX38650A)
- Preprogrammed VOUT from 1.2V to 5V (MAX38650B) in steps of 50mV
- 100% Duty Cycle Mode for Low Dropout Operation
- ±1.5% Output Voltage Accuracy
- 100mA Load Current
- Protects System in Multiple Use Cases
- Reverse-Current Blocking in Shutdown
- Active Discharge Feature
- Reduces Size and Increases Reliability
- -40°C to +125°C Operating Temperature Range
- 1.58mm x 0.89mm, 0.4mm Pitch, 6-Pin (2 x 3) WLP
应用/用途
- Low-Voltage Industrial Applications
- Portable Space-Constrained Consumer Products
- Single Li-ion and Coin Cell Battery Products
- Wearable Devices, Ultra-Low-Power IoT, NB IoT, and Bluetooth Low Energy (BLE)
- Wired, Wireless, Industrial Products
描述
The MAX38650 is a nanoPower, ultra-low 390nA quiescent current, buck (step-down) DC-DC converter operating from 1.8V to 5.5V input voltage and supporting load currents of up to 100mA with peak efficiencies of 95%. While in shutdown, there is only 5nA of shutdown current. The device offers ultra-low quiescent current, small total solution size, and high efficiency throughout the load range. The device is ideal for battery applications where long battery life is a must. The MAX38650 supports 100% duty cycle operation allowing seamless transition as battery discharges and falls below the target output voltage. The MAX38650 utilizes a unique control scheme that allows ultra-low quiescent current and high efficiency over a wide output current range. The device is offered in a space-saving, 1.58mm x 0.89mm, 6-pin wafer-level package (WLP) (2 x 3 bumps, 0.4mm pitch). The part is specified over the -40°C to +125°C operating temperature range.
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