Product details

Regulated outputs (#) 4 Vin (Min) (V) 2.8 Vin (Max) (V) 5.5 Iout (Max) (A) 3 Rating Catalog 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 Processor name i.MX 8M Mini/Nano Processor supplier NXP Switching frequency (Typ) (kHz) 2000 Configurability Factory programmable, Software configurable
Regulated outputs (#) 4 Vin (Min) (V) 2.8 Vin (Max) (V) 5.5 Iout (Max) (A) 3 Rating Catalog 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 Processor name i.MX 8M Mini/Nano Processor supplier NXP Switching frequency (Typ) (kHz) 2000 Configurability Factory programmable, Software configurable
VQFN (RHD) 28 25 mm² 5 x 5
  • 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
    • 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
  • 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
    • 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 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.

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

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Type Title Date
* Data sheet LP8733xx Dual High-Current Buck Converter and Dual Linear Regulator datasheet (Rev. A) PDF | HTML 04 Jun 2021
Application note Using LP8733xx and TPS65218xx PMICs to Power AM64x and AM243x Sitara Processors PDF | HTML 16 Feb 2022
User guide LP873364 Technical Reference Manual PDF | HTML 22 Sep 2021
Application note Powering the AM64xx With the LP8733xx PMIC PDF | HTML 15 Jul 2021
User guide LP87334D Technical Reference Manual PDF | HTML 17 Jun 2021
User guide LP873345 Technical Reference Manual PDF | HTML 16 Mar 2021
Application note Powering the NXP i.MX 8M Mini and Nano with the TPS6521825 and LP873347 PMICs (Rev. B) PDF | HTML 09 Dec 2019
User guide LP873347 Technical Reference Manual PDF | HTML 10 Sep 2019

Design & development

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

Evaluation board

LP87330Q1EVM — LP873300-Q1 I²C Configurable Dual High-Current Buck Converters and Dual Linear Regulator 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 (...)

User guide: PDF
Not available on TI.com
Evaluation board

TMDS64GPEVM — General-purpose evaluation module for Sitara™ processors

The TMDS64 evaluation module (EVM) is a standalone platform for test and development to evaluate the functionality of the AM64x family of products and develop prototypes for a variety of applications.

TMDS64GPEVM is equipped with a Sitara™ AM6442 processor along with additional components to (...)

User guide: PDF | HTML
Not available on TI.com
Software development kit (SDK)

PROCESSOR-SDK-LINUX-AM64X Processor SDK Linux for AM64x

The Processor and MCU+ SDKs (Software Development Kits) are unified software platforms for TI embedded processors providing easy setup and fast out-of-the-box access to benchmarks and demos. All releases of these SDKs are consistent across TI’s broad portfolio for which they are provided, (...)

Supported products & hardware

Supported products & hardware

Products
Arm-based processors
AM6411 Single-core 64-bit Arm® Cortex®-A53, single-core Cortex-R5F, PCIe, USB 3.0 and security AM6412 Dual-core 64-bit Arm® Cortex®-A53, single-core Cortex-R5F, PCIe, USB 3.0 and security AM6421 Single-core 64-bit Arm® Cortex®-A53, dual-core Cortex-R5F, PCIe, USB 3.0 and security AM6441 Single-core 64-bit Arm® Cortex®-A53, quad-core Cortex-R5F, PCIe, USB 3.0 and security AM6442 Dual-core 64-bit Arm® Cortex®-A53, quad-core Cortex-R5F, PCIe, USB 3.0 and security AM6422 Dual-core 64-bit Arm® Cortex®-A53, dual-core Cortex-R5F, PCIe, USB 3.0 and security
Multi-channel ICs (PMICs)
LP8733 Dual high-current buck converters and dual linear regulators
Hardware development
SK-AM64 AM64x starter kit for Sitara™ processors TMDS64GPEVM General-purpose evaluation module for Sitara™ processors
Evaluation board
SK-AM64B AM64B starter kit for AM64x Sitara™ processors
Download options
GUI for evaluation module (EVM)

LP8733 Evaluation Software (Rev. B)

SNVC203B.ZIP (6113 KB)
lock = Requires export approval (1 minute)
Simulation model

LP87332-Q1 PSpice Transient Model (Rev. A)

SNVMB16A.ZIP (207 KB) - PSpice Model
Reference designs

TIDA-050038 — Integrated power supply reference design for NXP i.MX 8M mini processor

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 + (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
VQFN (RHD) 28 View options

Ordering & quality

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  • Qualification summary
  • Ongoing reliability monitoring

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Support & training

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