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LP8733-Q1

AKTIV

Zweifache 3-A-Abwärtswandler (Bucks) & Zweifach-Linearregler für die Automobilindustrie

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Datenblatt

LP8733-Q1

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Regulated outputs (#) 4 Configurability Factory programmable, Software configurable Vin (min) (V) 2.8 Vin (max) (V) 5.5 Vout (min) (V) 0.7 Vout (max) (V) 3.36 Iout (max) (A) 3 Features Enable pin, I2C control, Power good, Power sequencing, Spread-Spectrum Clock (SSC) Generation, Thermal shutdown, UVLO adjustable Step-up DC/DC converter 0 Step-down DC/DC converter 2 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 2 Iq (typ) (mA) 0.009 Rating Automotive Switching frequency (max) (kHz) 2200 Operating temperature range (°C) -40 to 125 Processor supplier Generic Processor name Generic Shutdown current (ISD) (typ) (µA) 9 Switching frequency (typ) (kHz) 2000 Product type Processor and FPGA
Regulated outputs (#) 4 Configurability Factory programmable, Software configurable Vin (min) (V) 2.8 Vin (max) (V) 5.5 Vout (min) (V) 0.7 Vout (max) (V) 3.36 Iout (max) (A) 3 Features Enable pin, I2C control, Power good, Power sequencing, Spread-Spectrum Clock (SSC) Generation, Thermal shutdown, UVLO adjustable Step-up DC/DC converter 0 Step-down DC/DC converter 2 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 2 Iq (typ) (mA) 0.009 Rating Automotive Switching frequency (max) (kHz) 2200 Operating temperature range (°C) -40 to 125 Processor supplier Generic Processor name Generic Shutdown current (ISD) (typ) (µA) 9 Switching frequency (typ) (kHz) 2000 Product type Processor and FPGA
VQFN (RHD) 28 25 mm² 5 x 5
  • 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
  • Two high-efficiency step-down DC/DC converters:
    • Output voltage: 0.7 V to 3.36 V
    • Maximum output current 3 A per phase
    • Adding and shedding auto phase and force multi-phase operations in dual-phase configuration
    • Remote differential feedback voltage sensing in dual-phase configuration
    • Programmable output-voltage slew rate from 0.5 mV/µs to 10 mV/µs
    • 2-MHz switching frequency
    • Spread-spectrum mode and phase interleaving for EMI reduction
  • Two linear regulators:
    • Input voltage: 2.5 V to 5.5 V
    • Output voltage: 0.8 V to 3.3 V
    • Maximum output current 300 mA
  • Configurable general-purpose output signals (GPO, GPO2)
  • 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)
  • 28-pin, 5-mm × 5-mm VQFN package with wettable flanks
  • 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
  • Two high-efficiency step-down DC/DC converters:
    • Output voltage: 0.7 V to 3.36 V
    • Maximum output current 3 A per phase
    • Adding and shedding auto phase and force multi-phase operations in dual-phase configuration
    • Remote differential feedback voltage sensing in dual-phase configuration
    • Programmable output-voltage slew rate from 0.5 mV/µs to 10 mV/µs
    • 2-MHz switching frequency
    • Spread-spectrum mode and phase interleaving for EMI reduction
  • Two linear regulators:
    • Input voltage: 2.5 V to 5.5 V
    • Output voltage: 0.8 V to 3.3 V
    • Maximum output current 300 mA
  • Configurable general-purpose output signals (GPO, GPO2)
  • 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)
  • 28-pin, 5-mm × 5-mm VQFN package with wettable flanks

The LP8733xx-Q1 is designed to meet the power management requirements in automotive applications. The device has two step-down DC/DC converters (which can be configured as a single dual-phase regulator or two single-phase regulators), two linear regulators, and two general-purpose digital-output signals. The device is controlled by an I2C-compatible serial interface and by an enable signal.

The automatic PWM/PFM (AUTO mode) operation together with the automatic phase adding/shedding gives high efficiency over a wide output-current range. The LP8733xx-Q1 supports remote voltage sensing (differential in dual-phase configuration) 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 LP8733xx-Q1 device supports programmable start-up and shutdown delays and sequences including GPO signals synchronized to the enable signal. During start-up and voltage change, the device controls the output slew rate to minimize output voltage overshoot and the in-rush current.

The LP8733xx-Q1 is designed to meet the power management requirements in automotive applications. The device has two step-down DC/DC converters (which can be configured as a single dual-phase regulator or two single-phase regulators), two linear regulators, and two general-purpose digital-output signals. The device is controlled by an I2C-compatible serial interface and by an enable signal.

The automatic PWM/PFM (AUTO mode) operation together with the automatic phase adding/shedding gives high efficiency over a wide output-current range. The LP8733xx-Q1 supports remote voltage sensing (differential in dual-phase configuration) 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 LP8733xx-Q1 device supports programmable start-up and shutdown delays and sequences including GPO signals synchronized to the enable signal. 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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Technische Dokumentation

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Typ Titel Datum
* Data sheet LP8733xx-Q1 Dual High-Current Buck Converter and Dual Linear Regulator datasheet (Rev. A) PDF | HTML 04 Jun 2021
User guide Power Supply Design for Renesas R-Car M3 (Rev. A) 29 Okt 2021
User guide LP87334A-Q1 Technical Reference Manual PDF | HTML 04 Okt 2021
User guide Single LP8733-Q1 User's Guide to Power DRA78x and TDA3 (Rev. A) PDF | HTML 31 Mär 2021
Application brief The Benefits of FlexPower PMIC Devices (Rev. B) PDF | HTML 23 Nov 2020
Application note How to Design Flexible Processor Power Systems Using PMICs (Rev. B) 27 Jan 2020
User guide LP8733-Q1 and LP8732-Q1 User’s Guide to Power DRA78x, and TDA3x (Rev. C) 20 Nov 2018
User guide LP8733-Q1 and LP8732-Q1 Configuration Guide (Rev. A) 01 Okt 2018
User guide Power Solution for the NXP i.MX8 Processor 08 Aug 2018
User guide LP8733-Q1 and LP8732-Q1 User’s Guide to Power DRA71x, DRA79x, and TDA2E-17 (Rev. A) 10 Jul 2018

Design und Entwicklung

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Evaluierungsplatine

LP87330Q1EVM — LP873300-Q1 I²C konfigurierbare Dual-Hochstrom-Abwärtswandler und Dual-Linearregler-EVM

The LP87330Q1EVM demonstrates the integrated circuit LP873300-Q1 from Texas Instruments.

The LP873300-Q1 has two high-performance step-down converters and two LDOs, designed to meet the power management requirements of the latest applications processors in automotive applications. The LP873300-Q1 is (...)

Benutzerhandbuch: PDF
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Simulationsmodell

LP87332-Q1 PSpice Transient Model (Rev. A)

SNVMB16A.ZIP (207 KB) - PSpice Model
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Berechnungstool

PEET-GUI — Effizienzschätzungstool für TPS6594-Q1, LP8756-Q1, LP8758, LP8770 und TPS650330-Q1

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 (...)
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