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LP87524B-Q1

ACTIVE

Multiphase 4MHz, 4A/1.8V + 2.5A/2.3V + 1.5A/3.3V + 1.5A/1.2V buck converters for AWR and IWR MMICs

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Data sheet
Multiphase 4MHz, 4A/1.8V + 2.5A/2.3V + 1.5A/3.3V + 1.5A/1.2V buck converters for AWR and IWR MMICs

LP87524B-Q1

ACTIVE
Data sheet Order now

Product details

Regulated outputs (#) 4 Vin (Min) (V) 2.8 Vin (Max) (V) 5.5 Iout (Max) (A) 3 Rating Automotive Step-down DC/DC controller 0 Step-down DC/DC converter 4 Step-up DC/DC controller 0 Step-up DC/DC converter 0 LDO 0 Iq (Typ) (mA) 0.0067 Features Diagnostics, Dynamic Voltage Scaling, Enable, I2C Control, Over Current Protection, Power Good, Power Sequencing, Spread-Spectrum Clock (SSC) Generation, Thermal Shutdown, UVLO Fixed Operating temperature range (C) -40 to 125 Processor name AWR1243 Processor supplier Texas Instruments Shutdown current (ISD) (Typ) (uA) 1.4 Configurability Factory programmable, Software configurable
Regulated outputs (#) 4 Vin (Min) (V) 2.8 Vin (Max) (V) 5.5 Iout (Max) (A) 3 Rating Automotive Step-down DC/DC controller 0 Step-down DC/DC converter 4 Step-up DC/DC controller 0 Step-up DC/DC converter 0 LDO 0 Iq (Typ) (mA) 0.0067 Features Diagnostics, Dynamic Voltage Scaling, Enable, I2C Control, Over Current Protection, Power Good, Power Sequencing, Spread-Spectrum Clock (SSC) Generation, Thermal Shutdown, UVLO Fixed Operating temperature range (C) -40 to 125 Processor name AWR1243 Processor supplier Texas Instruments Shutdown current (ISD) (Typ) (uA) 1.4 Configurability Factory programmable, Software configurable
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VQFN-HR (RNF) 26 18 mm² 4 x 4.5
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  • 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)
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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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LP87524J-Q1 ACTIVE Multiphase 4MHz, 4A/1.0V + 2.5A/1.8V + 1.5A/3.3V + 1.5A/1.2V buck converters for AWR and IWR MMICs This product is for LDO-free radar designs.
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 This product is for cascaded radar designs.
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Technical documentation

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Type Title Date
* Data sheet LP87524B/J/P-Q1 Four 4-MHz Buck Converters for AWR and IWR MMICs datasheet (Rev. B) 06 Dec 2018
Technical article 3 quiescent-current (Iq) specifications you need to understand 12 Nov 2021
User guide LP87524x-Q1 Technical Reference Manual (Rev. A) 10 May 2021
Application note The Benefits of FlexPower PMIC Devices (Rev. B) 23 Nov 2020
Application note Power Management Optimizations - Low Cost LC Filter Solution (Rev. A) 11 Nov 2020
Technical article Let’s break it down: how buck converters make your power supply more flexible 13 Dec 2017
Application note XWR1xxx Power Management Optimizations - Low Cost LC Filter Solution 16 Oct 2017

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

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The AWR1243 BoosterPack™ plug-in module is an easy-to-use evaluation board for the single-chip AWR1243 mmWave sensing device.

AWR1243BOOST contains everything required to start developing using the MMWAVE-STUDIO environment and the DCA1000 real-time data capture adapter.

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AWR1642BOOST — AWR1642 single-chip 76-GHz to 81-GHz automotive radar sensor evaluation module

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Evaluation board

AWR2243BOOST — AWR2243 second-generation 76-GHz to 81-GHz high-performance automotive MMIC evaluation module

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AWR6843AOPEVM — AWR6843AOP evaluation module for single-chip, 60-GHz to 64-GHz, automotive radar sensor with AoP

The AWR6843 antenna-on-package (AoP) evaluation module (EVM) is an easy-to-use 60-GHz automotive mmWave sensor evaluation platform with integrated, short-range, wide field-of-view (FoV) AoP technology enabling direct connectivity to the mmWave sensors carrier card platform (MMWAVEICBOOST) and for (...)

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Evaluation board

IWR1443BOOST — IWR1443 single-chip 76-GHz to 81-GHz mmWave sensor evaluation module

The IWR1443 BoosterPack™ plug-in module is an easy-to-use 77GHz mmWave sensor evaluation board for the single-chip IWR1443 mmWave sensing device, with direct connectivity to the TI MCU LaunchPad™ development-kit ecosystem.

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Evaluation board

IWR1642BOOST — IWR1642 single-chip 76-GHz to 81-GHz mmWave sensor integrating DSP and MCU evaluation module

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Evaluation board

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

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Simulation model

LP87524B PSpice Transient Model

SNVMB85.ZIP (364 KB) - PSpice Model
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Simulation model

LP87524B-Q1 SIMPLIS Transient

SNVMBG0.ZIP (274 KB) - SIMPLIS Model
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Reference designs

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document-generic Schematic
Reference designs

TIDEP-01000 — People Counting and Tracking Reference Design Using mmWave Radar Sensor

This reference design demonstrates the use of IWR6843, which is a single-chip mmWave radar sensor with integrated DSP for an indoor and outdoor people counting application. This reference design uses the IWR6843ISK evaluation module (EVM) and integrates a complete radar processing chain onto the (...)
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TIDEP-01001 — Vehicle occupant detection reference design

This reference design demonstrates the use of the AWR6843 60GHz single-chip mmWave sensor with integrated DSP, as a Vehicle Occupant Detection (VOD) and Child Presence Detection (CPD) Sensor enabling the detection of life forms in a vehicle. This design provides a reference software processing (...)
document-generic Schematic
Reference designs

TIDEP-01025 — mmWave diagnostic and monitoring reference design

This reference design showcases the inbuilt autonomous monitoring functionality in mmWave radar sensors that enhances system efficiency by minimizing the processing load on the host. The design uses a safety diagnostic library (SDL) to run diagnostic tests on programmable digital cores, peripherals (...)
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Reference designs

TIDEP-0091 — Power optimization for 77GHz-level transmitter reference design

TIDEP-0091 highlights strategies for power optimization of IWR14xx 76- to 81-GHz mmWave sensors in tank level-probing applications, displacement sensors, 4- to 20-mA sensors and other low-power applications for detecting range with high accuracy in a minimal power envelope. In these (...)
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Reference designs

TIDEP-0094 — 80m-Range Object Detection Reference Design With Integrated Single-Chip mmWave Sensor

TIDEP-0094 provides a foundation to evaluate object detection using the IWR1642 evaluation module (EVM). This reference design integrates a complete radar processing chain onto the IWR1642 device to enable the estimation of the position (in the azimuthal plane) and the velocity of (...)
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Reference designs

TIDEP-0092 — Short-range radar (SRR) reference design

The TIDEP-0092 reference design provides a foundation for short-range radar (SRR) applications using the AWR1642 evaluation module (EVM). This design allows the estimation and tracking of the position (in the azimuthal plane) and velocity of objects in its field of view up to 80 m,  travelling (...)
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Reference designs

TIDEP-01011 — Automated parking system reference design using 77-GHz mmWave sensor

This reference design demonstrates the use of AWR1843, a 77-GHz single-chip mmWave sensor with integrated DSP, MCU, and hardware accelerator as an automated parking sensor, which enables robust detection of objects around a car in challenging parking and environmental conditions. With a range (...)
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Reference designs

TIDEP-0104 — Obstacle detection reference design using 77-GHz mmWave sensor

This reference design demonstrates the use of the AWR1642 single-chip mmWave sensor with integrated DSP as an obstacle-detection sensor for the car door and trunk, enabling applications like automatic car door openers and intelligent car doors that can accurately detect obstacles/objects in a (...)
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