The SGM660 is a synchronous inverting Buck-Boost converter. The device implements a multi-function digital input SWIRE pin which can be used to program the negative output voltage or device enable.
The SGM660 integrates a 810mA switch current power FET, which can be programmable down to 435mA. 1.8MHz switching frequency allows the use of small size inductor. The device has built-in soft-start and loop compensation network to reduce the external component counts. Output discharge function is also implemented.
Various protection features such as over-current protection, over-temperature protection and short circuit protection are implemented to protect the device against various fault conditions.
The SGM660 is available in a Green WLCSP-0.9×1.3-6B package.
Input Voltage Range: 2.8V to 5.5V
Adjustable Output Voltage: -0.8V to -5.2V, 0.1V/Step
Programmable Switching Current Limit: 810mA (Default)/620mA/435mA
Programmable Switching Frequency: 1.8MHz/1.6MHz (Default)/1.4MHz
Internal Soft-Start Function
No External Compensation
Shutdown Current: 1μA (MAX)
Available in a Green WLCSP-0.9×1.3-6B Package
Sensor and Modulator Bias
Negative Bias Supply for Amplifiers and Data Converters
Discrete LCD Biasing
