Home Power management Multi-channel ICs (PMICs)
Home
Power management
Multi-channel ICs (PMICs)

LP87702

ACTIVE

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

Order now
Data sheet

LP87702

ACTIVE
Data sheet Order now

Product details

Regulated outputs (#) 3 Configurability Factory programmable, Software configurable Vin (min) (V) 2.8 Vin (max) (V) 5.5 Vout (min) (V) 0.7 Vout (max) (V) 5.2 Iout (max) (A) 3.5 Features Dynamic voltage scaling, Enable, Enable pin, I2C control, Overcurrent protection, Power good, Power sequencing, Power supply and system monitoring, Spread-Spectrum Clock (SSC) Generation, Thermal shutdown, UVLO fixed TI functional safety category Functional Safety Quality-Managed Step-up DC/DC converter 1 Step-down DC/DC converter 2 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 0 Iq (typ) (mA) 27 Rating Catalog Switching frequency (max) (kHz) 4000 Operating temperature range (°C) -40 to 105 Processor supplier Texas Instruments Processor name mmWave IWR Shutdown current (ISD) (typ) (µA) 1 Switching frequency (typ) (kHz) 2000 Product type Radar sensor
Regulated outputs (#) 3 Configurability Factory programmable, Software configurable Vin (min) (V) 2.8 Vin (max) (V) 5.5 Vout (min) (V) 0.7 Vout (max) (V) 5.2 Iout (max) (A) 3.5 Features Dynamic voltage scaling, Enable, Enable pin, I2C control, Overcurrent protection, Power good, Power sequencing, Power supply and system monitoring, Spread-Spectrum Clock (SSC) Generation, Thermal shutdown, UVLO fixed TI functional safety category Functional Safety Quality-Managed Step-up DC/DC converter 1 Step-down DC/DC converter 2 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 0 Iq (typ) (mA) 27 Rating Catalog Switching frequency (max) (kHz) 4000 Operating temperature range (°C) -40 to 105 Processor supplier Texas Instruments Processor name mmWave IWR Shutdown current (ISD) (typ) (µA) 1 Switching frequency (typ) (kHz) 2000 Product type Radar sensor
VQFN (RHB) 32 25 mm² 5 x 5
  • FMEDA and Functional Safety Manual Available to Support System-Level Functional Safety Requirements up to SIL-2 (IEC 61508)
  • Two High-Efficiency Step-Down DC/DC converters:
    • Maximum Output Current 3.5 A
    • 2-MHz, 3-MHz, or 4-MHz Switching Frequency
    • Auto PWM/PFM and Forced-PWM Operations
    • Output Voltage = 0.7 V to 3.36 V
  • 5-V 600 mA Boost Converter
  • Two Inputs for External Voltage Monitoring
  • Two Programmable Power-Good Signals
  • Dedicated Reference Voltage for Diagnostics
  • Window Watchdog with Reset Output
  • External Clock Input to Synchronize Switching
  • Spread-Spectrum Modulation
  • Programmable Start-up and Shutdown Delays and Sequencing with Enable Signal
  • Configurable General Purpose Outputs (GPOs)
  • I2C-Compatible Interface
  • Interrupt Function with Programmable Masking
  • Output Short-Circuit and Overload Protection
  • Overtemperature Warning and Protection
  • Overvoltage Protection (OVP) and Undervoltage Lockout (UVLO)
  • FMEDA and Functional Safety Manual Available to Support System-Level Functional Safety Requirements up to SIL-2 (IEC 61508)
  • Two High-Efficiency Step-Down DC/DC converters:
    • Maximum Output Current 3.5 A
    • 2-MHz, 3-MHz, or 4-MHz Switching Frequency
    • Auto PWM/PFM and Forced-PWM Operations
    • Output Voltage = 0.7 V to 3.36 V
  • 5-V 600 mA Boost Converter
  • Two Inputs for External Voltage Monitoring
  • Two Programmable Power-Good Signals
  • Dedicated Reference Voltage for Diagnostics
  • Window Watchdog with Reset Output
  • External Clock Input to Synchronize Switching
  • Spread-Spectrum Modulation
  • Programmable Start-up and Shutdown Delays and Sequencing with Enable Signal
  • Configurable General Purpose Outputs (GPOs)
  • I2C-Compatible Interface
  • Interrupt Function with Programmable Masking
  • Output Short-Circuit and Overload Protection
  • Overtemperature Warning and Protection
  • Overvoltage Protection (OVP) and Undervoltage Lockout (UVLO)

The LP87702 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.

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 is found in the technical reference manual.

The LP87702 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.

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 is found in the technical reference manual.
open-in-new Find other Multi-channel ICs (PMICs)
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device
LP87702-Q1 ACTIVE Dual buck converter and 5-V boost with diagnostic functions This product is AEQ-100 qualified.

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 3
Type Title Date
* Data sheet LP87702 Dual Buck Converter and 5-V Boost With Diagnostic Functions datasheet PDF | HTML 24 Mar 2021
Technical article Improving industrial radar RF performance with low-noise, thermal-optimized power PDF | HTML 21 Apr 2021
User guide LP87702K Technical Reference Manual 06 Jun 2020

Design & development

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

Evaluation board

LP8770Q1EVM — Evaluation Module for LP8770-Q1 Boost and Dual Buck Regulators With Diagnostic Functions

The LP8770Q1EVM is designed to meet the power management requirements of the latest processor and platform needs in automotive camera and radar applications. The device contains two step-down DC-DC converters and two linear regulators and general purpose digital output signal. The device is (...)
User guide: PDF
Not available on TI.com
Calculation tool

PEET-GUI — PMIC Efficiency Estimator Tool (PEET)

The PMIC Efficiency Estimator Tool (PEET GUI) is a graphical user interface used to easily evaluate PMIC DC/DC regulator efficiency relative to your design conditions. The PEET GUI can be used to configure each DC/DC regulator separately and provides real-time efficiency and power dissipation data (...)
Evaluate in the cloud
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 (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
VQFN (RHB) 32 View options
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos