The SGM3802 is designed for powering devices which require both positive and negative bias voltages, such as LCDs, AFEs, etc. The device integrates a Boost converter VO1 for VPO and an inverting Buck-Boost converter VO2 for VNO. Output voltages of both converters can be programmed in digital steps through the I2C interface control pins.
The SGM3802 is available in a Green WLCSP- 1.25×1.75-12B package. It operates over an ambient temperature range of -40℃ to +85℃.
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特性
- Outputs Programmable with I2C Interface
- 4.6V to 6.4V Programmable Range with 100mV Step for Positive Output
- -4.6V to -6.4V Programmable Range with 100mV Step for Negative Output
- 300mA Output Current for VPO and VNO
- Excellent Performance
- Outstanding Transient Response
- 1.45MHz Switching Frequency for Positive Rail
- 1.25MHz Switching Frequency for Negative Rail
- Power Save Mode
- Configurable Active Discharge
- Internal Soft-Start to limit Inrush Current
- Over-Temperature Protection (OTP)
- Over-Current Protection (OCP)
- Short-Circuit Protection (SCP)
アプリケーション
LCD Bias
Wearable Device Display/Audio
AFE with Positive & Negative Rails
