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 Range | 2.7V~6.0V |
Output Voltage Range | 0.8V~4.0V(Accuracy ±2%) |
High Efficiency | 92%(TYP.) |
Output Current | 600mA(MAX) |
Oscillation Frequency | 1.2MHz,3.0MHz(±15%) |
Protection Circuits | Current Limiter Circuit Built-In,(Constant Current & Latching),Soft-Start |
Control | Fixed PWM, Auto PWM/PFM |
MaximumOutput Current | 500mA(600mA limit)(2.5V≦VROUT≦4.9V) |
Dropout Voltage | 200mV@IROUT=100mA |
Operating Voltage Range | 0.9V~5.1V(0.1V increments)(Accuracy ±2%) |
VD Detect Voltage Range | 2.0V~5.5V(0.1V increments)(Accuracy ±2%) |
VR.VD Temperature Stability | ±100ppm/℃(TYP.) |
High Ripple Rejection | 65dB(10kHz) |
Low ESR Capacitor | Low ESR Ceramic |
Operating Ambient Temperature | -40℃~85℃ |
Environmentally Friendly | EU RoHS compliant, Pb free |
Typical Application Circuit
Packages
Package | Number of Pins | Pcs/Reel | Package Size(mm) |
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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 |
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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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