600mA Synchronous Step-Down DC/DC Converter + 500mA LDO,with Delay Function 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 and a high speed, high current LDO regulator with voltage detector function. The device is housed in small USP-12B01 package which is ideally suited for space conscious applications. The DC/DC converter and the LDO blocks are isolated in the package so that noise interference from the DC/DC to the LDO regulator is minimal.

The DC/DC converter block with a built-in 0.42ΩP-channel MOS driver transistor and 0.52ΩN-channel MOS switching transistor, designed to allow the use of ceramic capacitors. The DC/DC enables a high efficiency, stable power supply with an output current of 600mA to be configured using only a coil and two capacitors connected externally.

The LDO regulator block is precise, low noise, high ripple rejection, low dropout positive voltage regulators with built-in voltage detector. The LDO is also compatible with low ESR ceramic output capacitors. Good output stability is maintained during load fluctuations due to its excellent transient response. The current limiter's fold back circuit also operates as a short circuit protection for the output current.

The voltage detector block of the contains delay circuit. The delay time can be controlled by an external capacitor.

The detector monitors the input voltage of the voltage regulator.

Feature

Input Voltage Range2.7V～6.0V
Output Voltage Range0.8V～4.0V(Accuracy ±2%)
High Efficiency92%(TYP.)
Output Current600mA(MAX)
Oscillation Frequency1.2MHz,3.0MHz(±15%)
Protection CircuitsCurrent Limiter Circuit Built-In,(Constant Current & Latching),Soft-Start
ControlFixed PWM, Auto PWM/PFM
MaximumOutput Current500mA(600mA limit)(2.5V≦VROUT≦4.9V)
Dropout Voltage200mV@IROUT=100mA
Operating Voltage Range0.9V～5.1V(0.1V increments)(Accuracy ±2%)
VD Detect Voltage Range2.0V～5.5V(0.1V increments)(Accuracy ±2%)
VR.VD Temperature Stability±100ppm/℃(TYP.)
High Ripple Rejection65dB(10kHz)
Low ESR CapacitorLow ESR Ceramic
Operating Ambient Temperature-40℃～85℃
Environmentally FriendlyEU RoHS compliant, Pb free

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

XCM524 Series Part Numbers

Part number Sample Type Oscillation Frequency and Option Output Voltage Packages EDA Online Store

XCM524AA01DR-G

PWM control 1.2MH,Without CL Auto discharge VDCOUT=1.0V,VROUT=3.3V,VDF=3.7V USP-12B01

XCM524AA02DR-G

PWM control 1.2MH,Without CL Auto discharge VDCOUT=1.2V,VROUT=3.3V,VDF=3.7V USP-12B01

XCM524AA03DR-G

PWM control 1.2MH,Without CL Auto discharge VDCOUT=1.5V,VROUT=3.3V,VDF=3.7V USP-12B01

XCM524AA04DR-G

PWM control 1.2MH,Without CL Auto discharge VDCOUT=1.8V,VROUT=3.3V,VDF=4.2V USP-12B01

XCM524AA05DR-G

PWM control 1.2MH,Without CL Auto discharge VDCOUT=3.3V,VROUT=1.8V,VDF=2.8V USP-12B01

XCM524AA06DR-G

PWM control 1.2MH,Without CL Auto discharge VDCOUT=1.8V,VROUT=2.5V,VDF=2.8V USP-12B01

XCM524AB01DR-G

PWM control 3.0MH,Without CL Auto discharge VDCOUT=1.0V,VROUT=3.3V,VDF=3.7V USP-12B01

XCM524AB02DR-G

PWM control 3.0MH,Without CL Auto discharge VDCOUT=1.2V,VROUT=3.3V,VDF=3.7V USP-12B01

XCM524AB03DR-G

PWM control 3.0MH,Without CL Auto discharge VDCOUT=1.5V,VROUT=3.3V,VDF=3.7V USP-12B01

XCM524AB04DR-G

PWM control 3.0MH,Without CL Auto discharge VDCOUT=1.8V,VROUT=3.3V,VDF=4.2V USP-12B01

XCM524AB05DR-G

PWM control 3.0MH,Without CL Auto discharge VDCOUT=3.3V,VROUT=1.8V,VDF=2.8V USP-12B01

XCM524AB06DR-G

PWM control 3.0MH,Without CL Auto discharge VDCOUT=1.8V,VROUT=2.5V,VDF=2.8V USP-12B01

XCM524AC01DR-G

PWM control 1.2MH,With CL Auto discharge,High speed soft-start VDCOUT=1.0V,VROUT=3.3V,VDF=3.7V USP-12B01

XCM524AC02DR-G

PWM control 1.2MH,With CL Auto discharge,High speed soft-start VDCOUT=1.2V,VROUT=3.3V,VDF=3.7V USP-12B01

XCM524AC03DR-G

PWM control 1.2MH,With CL Auto discharge,High speed soft-start VDCOUT=1.5V,VROUT=3.3V,VDF=3.7V USP-12B01

XCM524AC04DR-G

PWM control 1.2MH,With CL Auto discharge,High speed soft-start VDCOUT=1.8V,VROUT=3.3V,VDF=4.2V USP-12B01

XCM524AC05DR-G

PWM control 1.2MH,With CL Auto discharge,High speed soft-start VDCOUT=3.3V,VROUT=1.8V,VDF=2.8V USP-12B01

XCM524AC06DR-G

PWM control 1.2MH,With CL Auto discharge,High speed soft-start VDCOUT=1.8V,VROUT=2.5V,VDF=2.8V USP-12B01

XCM524AD01DR-G

PWM control 3.0MH,With CL Auto discharge,High speed soft-start VDCOUT=1.0V,VROUT=3.3V,VDF=3.7V USP-12B01

XCM524AD02DR-G

PWM control 3.0MH,With CL Auto discharge,High speed soft-start VDCOUT=1.2V,VROUT=3.3V,VDF=3.7V USP-12B01

XCM524AD03DR-G

PWM control 3.0MH,With CL Auto discharge,High speed soft-start VDCOUT=1.5V,VROUT=3.3V,VDF=3.7V USP-12B01

XCM524AD04DR-G

PWM control 3.0MH,With CL Auto discharge,High speed soft-start VDCOUT=1.8V,VROUT=3.3V,VDF=4.2V USP-12B01

XCM524AD05DR-G

PWM control 3.0MH,With CL Auto discharge,High speed soft-start VDCOUT=3.3V,VROUT=1.8V,VDF=2.8V USP-12B01

XCM524AD06DR-G

PWM control 3.0MH,With CL Auto discharge,High speed soft-start VDCOUT=1.8V,VROUT=2.5V,VDF=2.8V USP-12B01

XCM524BA01DR-G

PWM/PFM Auto 1.2MH,Without CL Auto discharge VDCOUT=1.0V,VROUT=3.3V,VDF=3.7V USP-12B01

XCM524BA02DR-G

PWM/PFM Auto 1.2MH,Without CL Auto discharge VDCOUT=1.2V,VROUT=3.3V,VDF=3.7V USP-12B01

XCM524BA03DR-G

PWM/PFM Auto 1.2MH,Without CL Auto discharge VDCOUT=1.5V,VROUT=3.3V,VDF=3.7V USP-12B01

XCM524BA04DR-G

PWM/PFM Auto 1.2MH,Without CL Auto discharge VDCOUT=1.8V,VROUT=3.3V,VDF=4.2V USP-12B01

XCM524BA05DR-G

PWM/PFM Auto 1.2MH,Without CL Auto discharge VDCOUT=3.3V,VROUT=1.8V,VDF=2.8V USP-12B01

XCM524BA06DR-G

PWM/PFM Auto 1.2MH,Without CL Auto discharge VDCOUT=1.8V,VROUT=2.5V,VDF=2.8V USP-12B01

XCM524BB01DR-G

PWM/PFM Auto 3.0MH,Without CL Auto discharge VDCOUT=1.0V,VROUT=3.3V,VDF=3.7V USP-12B01

XCM524BB02DR-G

PWM/PFM Auto 3.0MH,Without CL Auto discharge VDCOUT=1.2V,VROUT=3.3V,VDF=3.7V USP-12B01

XCM524BB03DR-G

PWM/PFM Auto 3.0MH,Without CL Auto discharge VDCOUT=1.5V,VROUT=3.3V,VDF=3.7V USP-12B01

XCM524BB04DR-G

PWM/PFM Auto 3.0MH,Without CL Auto discharge VDCOUT=1.8V,VROUT=3.3V,VDF=4.2V USP-12B01

XCM524BB05DR-G

PWM/PFM Auto 3.0MH,Without CL Auto discharge VDCOUT=3.3V,VROUT=1.8V,VDF=2.8V USP-12B01

XCM524BB06DR-G

PWM/PFM Auto 3.0MH,Without CL Auto discharge VDCOUT=1.8V,VROUT=2.5V,VDF=2.8V USP-12B01

XCM524BC01DR-G

PWM/PFM Auto 1.2MH,With CL Auto discharge,High speed soft-start VDCOUT=1.0V,VROUT=3.3V,VDF=3.7V USP-12B01

XCM524BC02DR-G

PWM/PFM Auto 1.2MH,With CL Auto discharge,High speed soft-start VDCOUT=1.2V,VROUT=3.3V,VDF=3.7V USP-12B01

XCM524BC03DR-G

PWM/PFM Auto 1.2MH,With CL Auto discharge,High speed soft-start VDCOUT=1.5V,VROUT=3.3V,VDF=3.7V USP-12B01

XCM524BC04DR-G

PWM/PFM Auto 1.2MH,With CL Auto discharge,High speed soft-start VDCOUT=1.8V,VROUT=3.3V,VDF=4.2V USP-12B01

XCM524BC05DR-G

PWM/PFM Auto 1.2MH,With CL Auto discharge,High speed soft-start VDCOUT=3.3V,VROUT=1.8V,VDF=2.8V USP-12B01

XCM524BC06DR-G

PWM/PFM Auto 1.2MH,With CL Auto discharge,High speed soft-start VDCOUT=1.8V,VROUT=2.5V,VDF=2.8V USP-12B01

XCM524BD01DR-G

PWM/PFM Auto 3.0MH,With CL Auto discharge,High speed soft-start VDCOUT=1.0V,VROUT=3.3V,VDF=3.7V USP-12B01

XCM524BD02DR-G

PWM/PFM Auto 3.0MH,With CL Auto discharge,High speed soft-start VDCOUT=1.2V,VROUT=3.3V,VDF=3.7V USP-12B01

XCM524BD03DR-G

PWM/PFM Auto 3.0MH,With CL Auto discharge,High speed soft-start VDCOUT=1.5V,VROUT=3.3V,VDF=3.7V USP-12B01

XCM524BD04DR-G

PWM/PFM Auto 3.0MH,With CL Auto discharge,High speed soft-start VDCOUT=1.8V,VROUT=3.3V,VDF=4.2V USP-12B01

XCM524BD05DR-G

PWM/PFM Auto 3.0MH,With CL Auto discharge,High speed soft-start VDCOUT=3.3V,VROUT=1.8V,VDF=2.8V USP-12B01

XCM524BD06DR-G

PWM/PFM Auto 3.0MH,With CL Auto discharge,High speed soft-start VDCOUT=1.8V,VROUT=2.5V,VDF=2.8V USP-12B01

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