LP87702-Q1 Series

Dual buck converter and 5-V boost with diagnostic functions for industrial radar

Catalog

Dual buck converter and 5-V boost with diagnostic functions for industrial radar

Part	Package / Case	Supplier Device Package	Current - Supply	Operating Temperature [Min]	Operating Temperature [Max]	Qualification	Applications	Mounting Type	Grade
Texas Instruments LP877020RHBRQ1	32-VFQFN Exposed Pad	32-VQFN (5x5)	27 mA	-40 °C	125 °C	AEC-Q100	Camera	Surface Mount Wettable Flank	Automotive
Texas Instruments LP87702KRHBT	32-VFQFN Exposed Pad	32-VQFN (5x5)	27 mA	-40 °C	105 °C			Surface Mount Wettable Flank
Texas Instruments LP87702DRHBTQ1	32-VFQFN Exposed Pad	32-VQFN (5x5)	27 mA	-40 °C	125 °C	AEC-Q100	Camera	Surface Mount	Automotive
Texas Instruments LP87702DRHBRQ1	32-VFQFN Exposed Pad	32-VQFN (5x5)	27 mA	-40 °C	125 °C	AEC-Q100	Camera	Surface Mount	Automotive

Catalog

Dual buck converter and 5-V boost with diagnostic functions for industrial radar

Key Features

• AEC-Q100 Qualified for Automotive Applications:Device Temperature Grade 1: –40°C to +125°C, TAFunctional Safety Quality-ManagedDocumentation Available to Aid Functional Safety System DesignTwo Inputs for External Voltage MonitoringTwo Programmable Power-Good SignalsDedicated Reference Voltage for DiagnosticsWindow Watchdog with Reset OutputOutput Short-Circuit and Overload ProtectionOvertemperature Warning and ProtectionOvervoltage Protection (OVP) and Undervoltage Lockout (UVLO)Two High-Efficiency Step-Down DC/DC converters:Maximum Output Current 3.5 A2-MHz, 3-MHz, or 4-MHz Switching FrequencyAuto PWM/PFM and Forced-PWM OperationsOutput Voltage = 0.7 V to 3.36 V5-V Boost ConverterMaximum Output Current 600 mAExternal Clock Input to Synchronize SwitchingSpread-Spectrum ModulationProgrammable Start-up and Shutdown Delays and Sequencing with Enable SignalConfigurable General Purpose Outputs (GPOs)I2C-Compatible Interface Supporting Standard (100 kHz), Fast (400 kHz), Fast+ (1 MHz), and High-Speed (3.4 MHz) ModesInterrupt Function with Programmable MaskingAEC-Q100 Qualified for Automotive Applications:Device Temperature Grade 1: –40°C to +125°C, TAFunctional Safety Quality-ManagedDocumentation Available to Aid Functional Safety System DesignTwo Inputs for External Voltage MonitoringTwo Programmable Power-Good SignalsDedicated Reference Voltage for DiagnosticsWindow Watchdog with Reset OutputOutput Short-Circuit and Overload ProtectionOvertemperature Warning and ProtectionOvervoltage Protection (OVP) and Undervoltage Lockout (UVLO)Two High-Efficiency Step-Down DC/DC converters:Maximum Output Current 3.5 A2-MHz, 3-MHz, or 4-MHz Switching FrequencyAuto PWM/PFM and Forced-PWM OperationsOutput Voltage = 0.7 V to 3.36 V5-V Boost ConverterMaximum Output Current 600 mAExternal Clock Input to Synchronize SwitchingSpread-Spectrum ModulationProgrammable Start-up and Shutdown Delays and Sequencing with Enable SignalConfigurable General Purpose Outputs (GPOs)I2C-Compatible Interface Supporting Standard (100 kHz), Fast (400 kHz), Fast+ (1 MHz), and High-Speed (3.4 MHz) ModesInterrupt Function with Programmable Masking

Description

The LP87702-Q1helps meet the power management requirements of the latest platforms, particularly in automotive radar and camera and industrial radar applications. The device contains two step-down DC/DC converters, and a 5-V boost converter to support safety critical applications. The device integrates two voltage monitoring inputs for external power supplies and a window watchdog. The automatic PWM/PFM (AUTO mode) operation gives high efficiency over a wide output current range for buck converters. The LP87702-Q1 uses remote voltage sensing to compensate IR drop between the converter output and the point-of-load, thus improving the accuracy of the output voltage. Programmable start-up and shutdown sequences synchronized to the enable signal are supported, including general purpose digital outputs. During start-up and voltage change, the device controls the output slew rate for minimum output voltage overshoot and inrush current. This device contains one-time-programmable (OTP) memory. Each orderable part number has specific OTP settings for a given application. Details of the default OTP configuration for each orderable part number can be found in the technical reference manual. The LP87702-Q1helps meet the power management requirements of the latest platforms, particularly in automotive radar and camera and industrial radar applications. The device contains two step-down DC/DC converters, and a 5-V boost converter to support safety critical applications. The device integrates two voltage monitoring inputs for external power supplies and a window watchdog. The automatic PWM/PFM (AUTO mode) operation gives high efficiency over a wide output current range for buck converters. The LP87702-Q1 uses remote voltage sensing to compensate IR drop between the converter output and the point-of-load, thus improving the accuracy of the output voltage. Programmable start-up and shutdown sequences synchronized to the enable signal are supported, including general purpose digital outputs. During start-up and voltage change, the device controls the output slew rate for minimum output voltage overshoot and inrush current. This device contains one-time-programmable (OTP) memory. Each orderable part number has specific OTP settings for a given application. Details of the default OTP configuration for each orderable part number can be found in the technical reference manual.