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LP87524P-Q1

ACTIVE

Automotive multiphase 4MHz, 3A/1.0V + 3A/1.0V + 2.5A/1.8V + 1.5A/1.2V buck converters for AWR MMICs

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LP87524P-Q1

ACTIVE
Data sheet Order now

Product details

Processor supplier Texas Instruments Processor name mmWave AWR Product type Radar sensor Regulated outputs (#) 4 Step-down DC/DC converter 4 Step-up DC/DC converter 0 LDO 0 Vin (min) (V) 2.8 Vin (max) (V) 5.5 Vout (min) (V) 0.6 Vout (max) (V) 3.36 Iout (max) (A) 4 Configurability Factory programmable, Software configurable Features Diagnostics, Dynamic voltage scaling, Enable, Enable pin, I2C control, Overcurrent protection, Power good, Power sequencing, Spread-Spectrum Clock (SSC) Generation, Synchronous rectification, Thermal shutdown, UVLO fixed Rating Automotive Operating temperature range (°C) -40 to 125 Step-down DC/DC controller 0 Step-up DC/DC controller 0 Iq (typ) (mA) 0.0067 Switching frequency (max) (kHz) 4400 Shutdown current (ISD) (typ) (µA) 1.4 Switching frequency (typ) (kHz) 4000 Step-down DC/DC Iout (typ) (A) 2.5, 3.5, 4, 4
Processor supplier Texas Instruments Processor name mmWave AWR Product type Radar sensor Regulated outputs (#) 4 Step-down DC/DC converter 4 Step-up DC/DC converter 0 LDO 0 Vin (min) (V) 2.8 Vin (max) (V) 5.5 Vout (min) (V) 0.6 Vout (max) (V) 3.36 Iout (max) (A) 4 Configurability Factory programmable, Software configurable Features Diagnostics, Dynamic voltage scaling, Enable, Enable pin, I2C control, Overcurrent protection, Power good, Power sequencing, Spread-Spectrum Clock (SSC) Generation, Synchronous rectification, Thermal shutdown, UVLO fixed Rating Automotive Operating temperature range (°C) -40 to 125 Step-down DC/DC controller 0 Step-up DC/DC controller 0 Iq (typ) (mA) 0.0067 Switching frequency (max) (kHz) 4400 Shutdown current (ISD) (typ) (µA) 1.4 Switching frequency (typ) (kHz) 4000 Step-down DC/DC Iout (typ) (A) 2.5, 3.5, 4, 4
VQFN-HR (RNF) 26 18 mm² (4.5 mm × 4 mm)
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
  • Input Voltage: 2.8 V to 5.5 V
  • Output Voltage: 0.6 V to 3.36 V
  • Four High-Efficiency Step-Down DC-DC Converter Cores:
    • Total Output Current Up To 10 A
    • Output Voltage Slew-Rate 3.8 mV/µs
  • 4-MHz Switching Frequency
  • Spread-Spectrum Mode and Phase Interleaving
  • Configurable General Purpose I/O (GPIOs)
  • I2C-Compatible Interface which Supports Standard (100 kHz), Fast (400 kHz), Fast+ (1 MHz), and High-Speed (3.4 MHz) Modes
  • Interrupt Function with Programmable Masking
  • Programmable Power Good Signal (PGOOD)
  • Output Short-Circuit and Overload Protection
  • Overtemperature Warning and Protection
  • Overvoltage Protection (OVP) and Undervoltage Lockout (UVLO)
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
  • Input Voltage: 2.8 V to 5.5 V
  • Output Voltage: 0.6 V to 3.36 V
  • Four High-Efficiency Step-Down DC-DC Converter Cores:
    • Total Output Current Up To 10 A
    • Output Voltage Slew-Rate 3.8 mV/µs
  • 4-MHz Switching Frequency
  • Spread-Spectrum Mode and Phase Interleaving
  • Configurable General Purpose I/O (GPIOs)
  • I2C-Compatible Interface which Supports Standard (100 kHz), Fast (400 kHz), Fast+ (1 MHz), and High-Speed (3.4 MHz) Modes
  • Interrupt Function with Programmable Masking
  • Programmable Power Good Signal (PGOOD)
  • Output Short-Circuit and Overload Protection
  • Overtemperature Warning and Protection
  • Overvoltage Protection (OVP) and Undervoltage Lockout (UVLO)

The LP87524B/J/P-Q1 is designed to meet the power management requirements of the latest processors and platforms in various automotive power applications. The device contains four step-down DC-DC converter cores, which are configured as 4 single phase outputs. The device is controlled by an I2C-compatible serial interface and by enable signals.

The automatic PFM/PWM (AUTO mode) operation maximizes efficiency over a wide output-current range. The LP87524B/J/P-Q1 supports remote voltage sensing to compensate IR drop between the regulator output and the point-of-load (POL) thus improving the accuracy of the output voltage. In addition the switching clock can be forced to PWM mode and also synchronized to an external clock to minimize the disturbances.

The LP87524B/J/P-Q1 device supports load-current measurement without the addition of external current-sense resistors. In addition, the LP87524B/J/P-Q1 supports programmable start-up and shutdown delays and sequences synchronized to enable signals. The sequences can also include GPIO signals to control external regulators, load switches and processor reset. During start-up and voltage change, the device controls the output slew rate to minimize output voltage overshoot and the in-rush current.

The LP87524B/J/P-Q1 is designed to meet the power management requirements of the latest processors and platforms in various automotive power applications. The device contains four step-down DC-DC converter cores, which are configured as 4 single phase outputs. The device is controlled by an I2C-compatible serial interface and by enable signals.

The automatic PFM/PWM (AUTO mode) operation maximizes efficiency over a wide output-current range. The LP87524B/J/P-Q1 supports remote voltage sensing to compensate IR drop between the regulator output and the point-of-load (POL) thus improving the accuracy of the output voltage. In addition the switching clock can be forced to PWM mode and also synchronized to an external clock to minimize the disturbances.

The LP87524B/J/P-Q1 device supports load-current measurement without the addition of external current-sense resistors. In addition, the LP87524B/J/P-Q1 supports programmable start-up and shutdown delays and sequences synchronized to enable signals. The sequences can also include GPIO signals to control external regulators, load switches and processor reset. During start-up and voltage change, the device controls the output slew rate to minimize output voltage overshoot and the in-rush current.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet LP87524B/J/P-Q1 Four 4-MHz Buck Converters for AWR and IWR MMICs datasheet (Rev. B) PDF | HTML Dec 6, 2018
* User guide LP87524x-Q1 Technical Reference Manual (Rev. A) PDF | HTML May 10, 2021
Application brief The Benefits of FlexPower PMIC Devices (Rev. B) PDF | HTML Nov 23, 2020

Design & development

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Explore solutions that include the LP87524P-Q1. TI offers power-supply solutions for TI and non-TI systems on a chip (SoCs), processors, microcontrollers, sensors, and field-programmable gate arrays (FPGAs).

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LP87524Q1EVM — LP87524-Q1 Quad Output, Single-Phase Buck Converter Evaluation Module

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This power supply design describes the optimized power management IC (PMIC) to power the AWR1642 and AWR1243 radar sensors. The technical reference manual is used as a reference for the LP87524B/J/P-Q1 default register bits after OTP memory is downloaded. These LP87524B/J/P-Q1 PMICs also showcases (...)

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TIPA-050047 — mmWave AWR1642 and AWR1243 power-supply design with the LP87524P-Q1

This power supply design describes the optimized power management IC (PMIC) to power the AWR1642 and AWR1243 radar sensors. The technical reference manual is used as a reference for the LP87524B/J/P-Q1 default register bits after OTP memory is downloaded. These LP87524B/J/P-Q1 PMICs also showcases (...)

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Reference design

TIPA-050048 — mmWave AWR1642 and AWR1243 power-supply design with the LP87524B-Q1

This power supply design describes the optimized power management IC (PMIC) to power the AWR1642 and AWR1243 radar sensors. The technical reference manual is used as a reference for the LP87524B/J/P-Q1 default register bits after OTP memory is downloaded. These LP87524B/J/P-Q1 PMICs also showcases (...)

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