Features

• VIN Range: 2.7V to 5.5V

• Two Step-Down Regulators

▪ DC-DC1(Buck1): 1.2A, Low Dropout Voltage

• Externally Adjustable: VFBB1 = 0.6V

▪ VOUT Range: 0.6V to VINB1

• Fixed: VOUT = 3.3V

▪ Factory Programmable to any Voltage Level

from 0.6V to 4.0V

• DC-DC2(Buck2): 0.6A, Low Dropout Voltage

• Externally Adjustable: VFBB2 = 0.6V

▪ VOUT Range: 0.6V to VINB2

• Fixed: VOUT = 1.0V[SELB2=’1’]/1.3V[SELB2=’0’]

▪ Factory Programmable to any Two Voltage

Levels from 0.6V to 4.0V

▪ Fixed 1.5MHz Switching Frequency

▪ Internally Compensated Current Mode Control

▪ High Efficiency over the Entire Load Range

▪ Four LDO Regulators

• LDO1: 400mA LDO

• LDO2: 400mA LDO

• LDO3: 200mA, Low Noise LDO

• LDO4: 200mA, Low Noise LDO

• Fast Turn-On and Turn-Off time

• Short Circuit and Over-Current Protection

• Over-Temperature Protection

• Temperature Range: -40°C to +85°C

• TQFN44-28 Package