Products - Multi Chip Modules

XCM524 600mA Synchronous Step-Down DC/DC + 500mA LDO with Voltage Detector

600mA Synchronous Step-Down DC/DC + 500mA LDO with Voltage Detector image


Property XCM524
Type Step-Down DC/DC + 500mA LDO
Operating Voltage 2.7 ~ 6.0V, 2.0 ~ 6.0V
Output Voltage 0.8 ~ 4.0V, 0.9 ~ 5.1V
Accuracy ± 2%
Oscillation Frequency 1.2MHz, 3.0MHz (+15%)
Output Current 600mA
Packages USP-12B01

Product Description

600mA Synchronous Step-Down DC/DC + 500mA LDO with Voltage Detector

The XCM524 series is a multi combination module IC which comprises of a 600mA driver transistor built-in synchronous step–down DC/DC converter, a 500mA CMOS LDO regulator plus a voltage detector. 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 LDO regulator provides highly accurate outputs selectable in 100mV steps within a range of 0.9V~5.1V whilst the detector voltage can be set between 2.0V~5.5V .

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
LDO+VD Block
• Operating Voltage Range: 2.0V ~ 6.0V
• Output Voltage: 0.9V ~ 5.1V
• Output Current: 500mA 
• Dropout Voltage: 200mV @ 100mA
• Detect Voltage : 2.0V~5.5V