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Product details

Parameters

Regulated outputs (#) 4 Vin (Min) (V) 2.8 Vin (Max) (V) 5.5 Iout (Max) (A) 3 Step-down DC/DC controller 0 Step-down DC/DC converter 2 Step-up DC/DC controller 0 Step-up DC/DC converter 0 LDO 2 Iq (Typ) (mA) 0.009 Features Enable Pin, I2C Control, Power Good, Power Sequencing, Spread-Spectrum Clock (SSC) Generation, Thermal Shutdown, UVLO Adjustable Operating temperature range (C) -40 to 125 Rating Catalog Processor name i.MX 8M Mini Processor supplier NXP Configurability Factory programmable, Software configurable open-in-new Find other Multi-channel ICs (PMIC)

Package | Pins | Size

VQFN (RHD) 28 25 mm² 5 x 5 open-in-new Find other Multi-channel ICs (PMIC)

Features

  • Device operating temperature range: –40°C to +125°C ambient 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
    • Auto phase adding/shedding 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

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Description

The LP8733xx is designed to meet the power management requirements in industrial 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 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 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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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 5
Type Title Date
* Datasheet LP8733xx Dual High-Current Buck Converter and Dual Linear Regulator datasheet Sep. 23, 2019
Application notes Powering the NXP i.MX 8M Mini and Nano with the TPS6521825 and LP873347 PMICs (Rev. B) Dec. 09, 2019
User guides LP873347 Technical Reference Manual Sep. 10, 2019
Technical articles Automotive electronics design made easy Jul. 18, 2013
Technical articles John discusses benefits of LEDs in automobiles Jul. 16, 2013

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
199
Description

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 (...)

Features
  • Software controller
  • USB-TO-I²C interface supports 3.4 MHz clock rate on the I²C bus
  • Versatile GUI: Output current measurement and status indicators
  • Console application allows running scripts.  Application can execute user-specified scripts.
  • Convenient test points for all I/O's
GUIS FOR EVALUATION MODULES (EVM) Download
SNVC203B.ZIP (6113 KB)

Design tools & simulation

SIMULATION MODELS Download
SNVMB16A.ZIP (207 KB) - PSpice Model

Reference designs

REFERENCE DESIGNS Download
Integrated power supply reference design for NXP i.MX 8M mini processor
TIDA-050038 TIDA-050038 is a system-on-module (SoM) development board integrating two TI PMICs, TPS6521825 and LP873347, with the NXP™ i.MX 8M Mini Application Processor. The hardware design also includes LPDDR4 SDRAM (2GB, x32-bit), QSPI NORFlash (32MB), 16GB eMMC 5.1, 32-kHz RTC oscillator, WiFi (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
VQFN (RHD) 28 View options

Ordering & quality

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