Step-Down DC/DC + Dual LDO

600mA Synchronous Step-Down DC/DC + Dual LDO Regulator

The XCM520 series is a multi combination module IC which comprises of a 600mA driver transistor built-in synchronous step–down DC/DC converter and a dual output CMOS LDO regulator. The DC/DC converter and the LDO regulator blocks are isolated in the package so that noise interference from the DC/DC to the LDO regulator is minimal.

The synchronous DC/DC converter, with built-in 0.42Ohm P-channel and 0.52Ohm N-channel transistors, can be used with ceramic capacitors and enables a highly efficient, stable power supply with an output current of 600mA to be configured using only a coil and two capacitors connected externally.
The dual LDO regulator provides highly accurate (±20mV) outputs selectable in 50mV steps within a range of 0.8V~5.0V per output.

Available in a space saving ultra small USP-12B01 (2.8mm x 2.3mm x 0.6mm) package.
 

Key Features:
 
DC/DC Block
• Operating Voltage Range: 2.7V ~ 6.0V
• Output Voltage: 0.8V ~ 4.0V
• Output Current: 600mA
• Switching Frequency: 1.2MHz, 3.0MHz
• Control: PWM, PWM/PFM Auto
• Soft-Start Circuit Built-in
Dual LDO Block
• Operating Voltage Range: 1.5V ~ 6.0V 
• Output Voltage: 0.8V ~ 5.0V
• Output Current: 150mA per channel 
• Dropout Voltage: 100mV @ 100mA
• Supply Current: 25uA typ.
• Low Output Noise

Package: USP-12B01