View bl8069 datasheet:

BL8069 REV1.0-Revised DEC 2007 600mA High PSRR, Low Dropout Voltage Linear Regulator DESCRIPTION FEATURES  Low Power Consumption: 20uA（Typ.） BL8069 series is a group of positive voltage output, low noise,low power consumption, low  Low output noise (47uVRMS) dropout voltage regulator.  Low dropout Voltage: 0.16V@300mA (Typ.) BL8069 can provide output value in the range  High Ripple Rejection: 73dB@100Hz of 1.5V~4.5V every 0.1V step. It also can be (Typ.) customized on command.  Low Temperature Coefficient: ± 100ppm/C BL8069 includes high accuracy voltage  Excellent Line regulation: 0.05%/V reference, error amplifier, current limit circuit  Build-in chip enable and discharge circuit and output driver module with disch