SGM38121

The SGM38121 is a 4-channel LDO PMIC, which has two high efficiency and low output DVDD channels and two high PSRR and low noise AVDD channels. 

For DVDD1 and DVDD2, the SGM38121 uses NMOS architecture without a charge pump. IN1 is used as an input source and IN2 is used as bias voltage. The IN1 input voltage range is from 0.7V to 2V and IN2 input voltage range is from 3V to 5.5V respectively. The DVDD1 and DVDD2 output ranges are both from 0.528V to 1.504V. Both of them are capable of supplying 1200mA output current with ultra-low dropout voltage. 

For AVDD1 and AVDD2, the SGM38121 uses PMOS architecture with IN2 as an input source. Both of them can supply 1.504V to 3.424V output voltage with high PSRR performance. The output current limit is 330mA. The SGM38121 has an external EN pin, internal enable bits and sequence control register. Other features include UVLO, high resolution output voltage configuration, and hiccup function during OCP and UVP. The SGM38121 has automatic discharge function to quickly discharge output voltage in the disabled status. Besides, the SGM38121 supports 400kHz I2 C interface with register address automatic increment for continuous writing. 

The SGM38121 is qualified for phone camera sensors, camera sensors on wearable device. 

The SGM38121 is available in a Green TDFN-2×2-10L package. It operates over an operating temperature range of -40℃ to +85℃.