LM3668 Overview
The LM3668 is a synchronous buck-boost DC-DC converter optimized for powering low voltage circuits from a Li-Ion battery and input voltage rails between 2.5 V and 5.5 V. It has the capability to support up to 1-A output current over the output voltage range. The LM3668 regulates the output voltage over the plete input voltage range by automatically switching between buck or boost modes depending on the input voltage.
LM3668 Key Features
- 1 45-µA Typical Quiescent Current
- For 2.8-V-3.3-V and 3-V-3.4-V Versions
- 1-A Maximum Load Current for VIN = 2.8 V to 5.5 V
- 800-mA Maximum Load Current for VIN = 2.7 V
- 600-mA Maximum Load Current for VIN = 2.5 V
- For 4.5 V-5 V
- 1-A Maximum Load Current for VIN = 3.9 V to 5.5 V
- 800-mA Maximum Load Current for VIN = 3.4 V to 3.8 V
- 700-mA Maximum Load Current for VIN = 3 V to 3.3 V
- 600-mA Maximum Load Current for VIN = 2.7 V to 2.9 V
