Analog Devices Inc./Maxim Integrated

The MAX20471, MAX20472, and MAX20472B are high-efficiency low-voltage DC-DC converters that boost a 3.0V to 4.0V input supply to between 3.8V and 5.25V (factory-configurable) at 500mA or 1A. The boost converters achieve ±1.5% output error over load, line, and temperature range.The devices feature a 2.2MHz (2.0MHz for MAX20472B) fixed-frequency PWM mode for better noise immunity and load-transient response, and a pulse-frequency modulation mode (skip) for increased efficiency during light-load operation. The 2.2MHz/2.0MHz frequency operation allows for the use of all ceramic capacitors and minimizes external components. The programmable spread-spectrum frequency modulation minimizes radiated electromagnetic emissions. Integrated low RDS(ON)switches improve efficiency at heavy loads, which make the layout a much simpler task with respect to discrete solutions.Other features include true shutdown, soft-start, overcurrent, and overtemperature protections.ApplicationsAutomotive CAN TransceiversAutomotive Point of Load

The MAX20471, MAX20472, and MAX20472B are high-efficiency low-voltage DC-DC converters that boost a 3.0V to 4.0V input supply to between 3.8V and 5.25V (factory-configurable) at 500mA or 1A. The boost converters achieve ±1.5% output error over load, line, and temperature range.The devices feature a 2.2MHz (2.0MHz for MAX20472B) fixed-frequency PWM mode for better noise immunity and load-transient response, and a pulse-frequency modulation mode (skip) for increased efficiency during light-load operation. The 2.2MHz/2.0MHz frequency operation allows for the use of all ceramic capacitors and minimizes external components. The programmable spread-spectrum frequency modulation minimizes radiated electromagnetic emissions. Integrated low RDS(ON)switches improve efficiency at heavy loads, which make the layout a much simpler task with respect to discrete solutions.Other features include true shutdown, soft-start, overcurrent, and overtemperature protections.ApplicationsAutomotive CAN TransceiversAutomotive Point of Load

The MAX20471, MAX20472, and MAX20472B are high-efficiency low-voltage DC-DC converters that boost a 3.0V to 4.0V input supply to between 3.8V and 5.25V (factory-configurable) at 500mA or 1A. The boost converters achieve ±1.5% output error over load, line, and temperature range.The devices feature a 2.2MHz (2.0MHz for MAX20472B) fixed-frequency PWM mode for better noise immunity and load-transient response, and a pulse-frequency modulation mode (skip) for increased efficiency during light-load operation. The 2.2MHz/2.0MHz frequency operation allows for the use of all ceramic capacitors and minimizes external components. The programmable spread-spectrum frequency modulation minimizes radiated electromagnetic emissions. Integrated low RDS(ON)switches improve efficiency at heavy loads, which make the layout a much simpler task with respect to discrete solutions.Other features include true shutdown, soft-start, overcurrent, and overtemperature protections.ApplicationsAutomotive CAN TransceiversAutomotive Point of Load

The MAX20478 is a complete ASIL D-compliant system-on-a-chip (SoC) voltage monitor with two or three voltage monitor inputs. Inputs 1 and 2 can be configured to monitor a voltage between 0.5V and 3.6875V in 12.5mV steps, while input 3 can be configured to monitor a voltage between 0.5V to 5.6V in 20mV steps. Each input has programmable OV/UV thresholds of between 2.5% and 10% with ±0.8% accuracy. The MAX20478 also contains a programmable windowed watchdog. The MAX20478 significantly reduces system size and component count, while improving reliability, compared to separate ICs or discrete components. The device is designed to operate over the ambient temperature range of -40°C to +125°C.ApplicationsAdvanced Driver-Assistance SystemsAutonomous Driving Processing SystemsPower System Supervision and Microcontroller Unit/System-on-a-Chip MonitoringRemote Sensor Modules

The MAX20481 is a complete ASIL-compliant SoC power system monitor with up to seven voltage-monitor inputs. Each input has factory OTP programmable OV/UV thresholds of between 2.5% and 10% with ±1% accuracy. Two of the inputs have a separate remote ground-sense input for use with high-current SoC supplies.The MAX20481 contains a factory-programmable windowed watchdog with digital input pins for both refreshing and disabling the watchdog. The active-low RESET pin of the device can be set at the factory to assert under a variety of conditions.The MAX20481 significantly reduces system size and component count while improving reliability compared to separate ICs or discrete components. The MAX20481 meets ASIL B reliability levels in a standalone application. The device is designed to operate from -40°C to +125°C ambient temperature.ApplicationsAutomotive ADAS SystemsAutonomous Driving Processing SystemsPower System Supervision and MCU/SoC MontioringRemote Sensor Modules

The MAX20484 is a complete ASIL D compliant SoC power system monitor with up to five voltage monitor inputs. Each input has programmable OV/UV thresholds of between 2.5% and 10% with ±0.8% accuracy.The MAX20484 contains a programmable flexible power sequence recorder (FPSR). This recorder stores power-up and power-down timestamps separately, and supports on/off and sleep/standby power sequences. The MAX20484 also contains a programmable challenge/response watchdog, which is accessible through the I2C interface, and an external clock/fault monitor along with two configurable active-low RESET outputs.The MAX20484 significantly reduces system size and component count while improving reliability, as compared to separate ICs or discrete components. The MAX20484 meets ASIL D reliability when used with a supervisory controller. The device is designed to operate over the ambient temperature range of -40°C to +125°C.ApplicationsADASAutonomous Driving Processing SystemsPower System Supervision and MCU/SoC MonitoringRemote Sensor Modules

The MAX20499 is a family of high-efficiency, synchronous step-down converters that operate with a 3.0V to 5.5V input voltage range and supply a 0.5V to 1.275V output voltage range. The wide input/output voltage range and the ability to provide up to 12A peak output current make this device family ideal for on-board point-of-load and post-regulation applications. The MAX20499 achieves ±1.5% output error over load, line, and temperature ranges.The MAX20499 features a 2.2MHz fixed-frequency PWM mode for better noise immunity and load-transient response. The 2.2MHz frequency operation allows for the use of all ceramic capacitors and minimizes external components. The spread-spectrum frequency modulation option minimizes radiated electromagnetic emissions. Integrated low RDS(ON)switches improve efficiency at heavy loads and make layout simpler than discrete solutions.The MAX20499 is offered with factory-preset output voltage. See theOrdering Informationtable for options. The I2C interface supports dynamic voltage adjustment with programmable slew rates. Other features include programmable soft-start, along with overcurrent and overtemperature protections.APPLICATIONSAutomotive Entertainment SystemsSoC Core Power

The MAX2058 high-linearity digital-variable-gain amplifier (DVGA) is designed to provide 62dB of total gain range and typical output IP3 and output P1dB levels of +32.3dBm and +19dBm, respectively. The device is ideal for a variety of applications, including RFID handheld and portal readers, as well as single and multicarrier 700MHz to 1200MHz GSM/EDGE, cdma2000®, WCDMA, and iDEN® base stations. The MAX2058 yields a high level of component integration, which includes two 5-bit, 31dB digital attenuators, a two-stage driver amplifier, a loopback mixer, and a serial interface to control the attenuators.The MAX2058 is pin compatible with the MAX2059 1800MHz to 2200MHz DVGA, facilitating an easy design-in for applications where a common PC board layout is used for both frequency bands.The MAX2058 is available in a 40-pin thin QFN package with an exposed paddle. Electrical performance is guaranteed over a -40°C to +85°C temperature range.ApplicationsAutomatic Test EquipmentBroadband SystemsCellular cdmaOne™, cdma2000, and Integrated Digital Enhanced Network (iDEN) Base-Station Transmitters and Power AmplifiersDigital and Spread-Spectrum Communication SystemsGSM 850/GSM 900 2G and 2.5G EDGE Base-Station Transmitters and Power AmplifiersMicrowave Terrestrial LinksReceiver Gain ControlRFID Handheld and Portal ReadersTransmitter Gain ControlWCDMA 850MHz and Other 3G Base-Station Transmitters and Power Amplifiers