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

The XCM520 series is a multi chip module which comprises of a 600mA driver transistor built-in synchronous step down DC/DC converter and a dual CMOS LDO regulator. The device is housed in small USP-12B01 package which is ideally suited for space conscious applications.

The XCM520 can replace this dual DC/DC to eliminate one inductor and reduce output noise.

The DC/DC converter with a built-in 0.42ΩP-channel MOS and a 0.52ΩN-channel MOS provides a high efficiency, stable power supply up to 600mA to using only a coil and two ceramic capacitors connected externally.

The highly accurate, low noise, dual CMOS LDO regulator includes a reference voltage source, error amplifiers, driver transistors, current limiters and phase compensation circuits internally. The series is also fully compatible with low ESR ceramic capacitors.

This high level of output stability is maintained even during frequent load fluctuations, due to the excellent transient response performance and high PSRR achieved across a broad range of frequencies. The EN function allows the output of each regulator to be turned off independently, resulting in greatly reduced power consumption.

Feature

DC/DC Converter Block
P-channel MOS Built-in0.42Ω
N-channel MOS Built-in0.52Ω
Input Voltage Range2.7V～6.0V
Output Voltage2.3V(VOUT3)
High Efficiency86%(TYP.)
Output Current600mA
Oscillation Frequency3.0MHz(±15%)
Soft-StartBuilt-In Soft-Start
Protection CircuitsCurrent Limiter Circuit Built-In,(Constant Current & Latching)
ControlFixed PWM, Auto PWM/PFM
Dual LDO Regulator Block
MaximumOutput Current150mA(300mA limitTYP.)
Dropout Voltage100mV@100mA
Operating Voltage Range1.5V～6.0V
Output Voltage Range1.8(VOUT1),1.2V(VOUT2)
High Accuracy±2%(VOUT1),±30mV(VOUT2)
Low Quiescent Current25μA(TYP.)
Stand-by CurrentLsee than 0.1μA(TYP.)
High Ripple Rejection:70dB@1kHz
NoiseLow Output Noise
Operating Ambient Temperature-40℃～+85℃
Low ESR CapacitorLow ESR Ceramic

Typical Application Circuit

Quality Reports

Packages

Package Number of Pins Pcs/Reel Package Size(mm)
USP-12B01 12 3,000 2.3 x 2.8 x 0.6

XCM520 Series Part Numbers

Part number Sample Options Output Voltage combination Packages EDA Online Store

XCM520AA01DR-G

XC6401FF**+XC9235A**D VOUT1=1.8V,VOUT2=1.2V,VOUT3=2.3V USP-12B01

XCM520AA02DR-G

XC6401FF**+XC9235A**D VOUT1=1.8V,VOUT2=1.3V,VOUT3=2.3V USP-12B01

XCM520AA03DR-G

XC6401FF**+XC9235A**D VOUT1=1.8V,VOUT2=1.2V,VOUT3=2.2V USP-12B01

XCM520AA04DR-G

XC6401FF**+XC9235A**D VOUT1=1.8V,VOUT2=1.2V,VOUT3=2.8V USP-12B01

XCM520AA05DR-G

XC6401FF**+XC9235A**D VOUT1=1.0V,VOUT2=1.2V,VOUT3=1.8V USP-12B01

XCM520AA06DR-G

XC6401FF**+XC9235A**D VOUT1=0.8V,VOUT2=1.5V,VOUT3=1.8V USP-12B01

XCM520AB01DR-G

XC6401FF**+XC9235A**C VOUT1=1.8V,VOUT2=1.2V,VOUT3=2.3V USP-12B01

XCM520AB02DR-G

XC6401FF**+XC9235A**C VOUT1=1.8V,VOUT2=1.3V,VOUT3=2.3V USP-12B01

XCM520AB03DR-G

XC6401FF**+XC9235A**C VOUT1=1.8V,VOUT2=1.2V,VOUT3=2.2V USP-12B01

XCM520AB04DR-G

XC6401FF**+XC9235A**C VOUT1=1.8V,VOUT2=1.2V,VOUT3=2.8V USP-12B01

XCM520AB05DR-G

XC6401FF**+XC9235A**C VOUT1=1.0V,VOUT2=1.2V,VOUT3=1.8V USP-12B01

XCM520AB06DR-G

XC6401FF**+XC9235A**C VOUT1=0.8V,VOUT2=1.5V,VOUT3=1.8V USP-12B01

XCM520AC01DR-G

XC6401FF**+XC9236A**D VOUT1=1.8V,VOUT2=1.2V,VOUT3=2.3V USP-12B01

XCM520AC02DR-G

XC6401FF**+XC9236A**D VOUT1=1.8V,VOUT2=1.3V,VOUT3=2.3V USP-12B01

XCM520AC03DR-G

XC6401FF**+XC9236A**D VOUT1=1.8V,VOUT2=1.2V,VOUT3=2.2V USP-12B01

XCM520AC04DR-G

XC6401FF**+XC9236A**D VOUT1=1.8V,VOUT2=1.2V,VOUT3=2.8V USP-12B01

XCM520AC05DR-G

XC6401FF**+XC9236A**D VOUT1=1.0V,VOUT2=1.2V,VOUT3=1.8V USP-12B01

XCM520AC06DR-G

XC6401FF**+XC9236A**D VOUT1=0.8V,VOUT2=1.5V,VOUT3=1.8V USP-12B01

XCM520AD01DR-G

XC6401FF**+XC9236A**C VOUT1=1.8V,VOUT2=1.2V,VOUT3=2.3V USP-12B01

XCM520AD02DR-G

XC6401FF**+XC9236A**C VOUT1=1.8V,VOUT2=1.3V,VOUT3=2.3V USP-12B01

XCM520AD03DR-G

XC6401FF**+XC9236A**C VOUT1=1.8V,VOUT2=1.2V,VOUT3=2.2V USP-12B01

XCM520AD04DR-G

XC6401FF**+XC9236A**C VOUT1=1.8V,VOUT2=1.2V,VOUT3=2.8V USP-12B01

XCM520AD05DR-G

XC6401FF**+XC9236A**C VOUT1=1.0V,VOUT2=1.2V,VOUT3=1.8V USP-12B01

XCM520AD06DR-G

XC6401FF**+XC9236A**C VOUT1=0.8V,VOUT2=1.5V,VOUT3=1.8V USP-12B01

XCM520AE01DR-G

XC6401FF**+XC9235B**D VOUT1=1.8V,VOUT2=1.2V,VOUT3=2.3V USP-12B01

XCM520AE02DR-G

XC6401FF**+XC9235B**D VOUT1=1.8V,VOUT2=1.3V,VOUT3=2.3V USP-12B01

XCM520AE03DR-G

XC6401FF**+XC9235B**D VOUT1=1.8V,VOUT2=1.2V,VOUT3=2.2V USP-12B01

XCM520AE04DR-G

XC6401FF**+XC9235B**D VOUT1=1.8V,VOUT2=1.2V,VOUT3=2.8V USP-12B01

XCM520AE05DR-G

XC6401FF**+XC9235B**D VOUT1=1.0V,VOUT2=1.2V,VOUT3=1.8V USP-12B01

XCM520AE06DR-G

XC6401FF**+XC9235B**D VOUT1=0.8V,VOUT2=1.5V,VOUT3=1.8V USP-12B01

XCM520AF01DR-G

XC6401FF**+XC9235B**C VOUT1=1.8V,VOUT2=1.2V,VOUT3=2.3V USP-12B01

XCM520AF02DR-G

XC6401FF**+XC9235B**C VOUT1=1.8V,VOUT2=1.3V,VOUT3=2.3V USP-12B01

XCM520AF03DR-G

XC6401FF**+XC9235B**C VOUT1=1.8V,VOUT2=1.2V,VOUT3=2.2V USP-12B01

XCM520AF04DR-G

XC6401FF**+XC9235B**C VOUT1=1.8V,VOUT2=1.2V,VOUT3=2.8V USP-12B01

XCM520AF05DR-G

XC6401FF**+XC9235B**C VOUT1=1.0V,VOUT2=1.2V,VOUT3=1.8V USP-12B01

XCM520AF06DR-G

XC6401FF**+XC9235B**C VOUT1=0.8V,VOUT2=1.5V,VOUT3=1.8V USP-12B01

XCM520AG01DR-G

XC6401FF**+XC9236B**D VOUT1=1.8V,VOUT2=1.2V,VOUT3=2.3V USP-12B01

XCM520AG02DR-G

XC6401FF**+XC9236B**D VOUT1=1.8V,VOUT2=1.3V,VOUT3=2.3V USP-12B01

XCM520AG03DR-G

XC6401FF**+XC9236B**D VOUT1=1.8V,VOUT2=1.2V,VOUT3=2.2V USP-12B01

XCM520AG04DR-G

XC6401FF**+XC9236B**D VOUT1=1.8V,VOUT2=1.2V,VOUT3=2.8V USP-12B01

XCM520AG05DR-G

XC6401FF**+XC9236B**D VOUT1=1.0V,VOUT2=1.2V,VOUT3=1.8V USP-12B01

XCM520AG06DR-G

XC6401FF**+XC9236B**D VOUT1=0.8V,VOUT2=1.5V,VOUT3=1.8V USP-12B01

XCM520AH01DR-G

XC6401FF**+XC9236B**C VOUT1=1.8V,VOUT2=1.2V,VOUT3=2.3V USP-12B01

XCM520AH02DR-G

XC6401FF**+XC9236B**C VOUT1=1.8V,VOUT2=1.3V,VOUT3=2.3V USP-12B01

XCM520AH03DR-G

XC6401FF**+XC9236B**C VOUT1=1.8V,VOUT2=1.2V,VOUT3=2.2V USP-12B01

XCM520AH04DR-G

XC6401FF**+XC9236B**C VOUT1=1.8V,VOUT2=1.2V,VOUT3=2.8V USP-12B01

XCM520AH05DR-G

XC6401FF**+XC9236B**C VOUT1=1.0V,VOUT2=1.2V,VOUT3=1.8V USP-12B01

XCM520AH06DR-G

XC6401FF**+XC9236B**C VOUT1=0.8V,VOUT2=1.5V,VOUT3=1.8V USP-12B01

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