LP87702 Series
Dual buck converter and 5-V boost with diagnostic functions
Manufacturer: Texas Instruments
Catalog(3 parts)
| Part | Current - Supply▲▼ | Supplier Device Package | Package / Case | Operating Temperature▲▼ | Operating Temperature▲▼ | Mounting Type | Applications | Grade | Qualification |
|---|---|---|---|---|---|---|---|---|---|
0.027000000700354576 A | 32-VQFN (5x5) | 32-VFQFN Exposed Pad | 105 °C | -40 °C | Surface Mount, Wettable Flank | ||||
0.027000000700354576 A | 32-VQFN (5x5) | 32-VFQFN Exposed Pad | 105 °C | -40 °C | Surface Mount, Wettable Flank | Industrial | Automotive | ||
0.027000000700354576 A | 32-VQFN (5x5) | 32-VFQFN Exposed Pad | 125 °C | -40 °C | Surface Mount | Camera | Automotive | AEC-Q100 |
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
AI
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.