Details, datasheet, quote on part number: LP873222RHDRQ1
PartLP873222RHDRQ1
CategorySemiconductors => Power Management => Power Management Multi-Channel IC (PMIC) Solutions
Part familyLP873222-Q1 Dual High-Current Buck Converters and Lnr Regulators
TitlePower Management Specialised - PMIC Dual High-Current Buck Converters and Lnr Regulators 28-VQFN -40 to 125
DescriptionDual High-Current Buck Converters and Lnr Regulators 28-VQFN -40 to 125
CompanyTexas Instruments Inc.
StatusACTIVE
ROHSY
SampleYes
DatasheetDownload LP873222RHDRQ1 datasheet
Specifications 
Output Voltage Range0.7 V to 3.36 V, 0.8 V to 3.3 V
Output Current300 mA, 2 A
Input Voltage Range2.8 V to 5.5 V
Input Current30 mA
Operating Temperature Range- 40 C to + 125 C
Mounting StyleSMD/SMT
Package/CaseVQFN-28
TypeDual High-Current Buck Converter and Linear Regulator
PackagingCut Tape, Reel
  Mecanical Data
Pin nbPackage typeInd stdJEDEC codePackage qtyCarrierDevice markWidth (mm)Length (mm)Thick (mm)Pitch (mm)
28RHDVQFNS-PQFP-N3000LARGE T&R22RHDQ1 55.9.5
Evaluation Kits
LP87323Q1EVM: LP873222-Q1 Dual High-Current Buck Converters and Dual Linear Regulator Evaluation Module
Spice Model
LP87322-Q1 PSpice Transient Model (Rev. A) - ZIP (01/23/2017)

Others parts numbering
LP873222RHDTQ1: Power Management Specialised - PMIC Dual High-Current Buck Converters and Lnr Regulators

 

Features, Applications

LP873222-Q1 Dual High-Current Buck Converter and Dual Linear Regulator

Automotive Head Unit and Cluster Surround View System ECU Radar System ECU Automotive Camera Module Automotive Display

Qualified for Automotive Applications AEC-Q100 Qualified With the Following Results: Device Temperature Grade to +125C Ambient Operating Temperature Input Voltage: 5.5 V Two High-Efficiency Step-Down DC-DC Converters: Output Voltage: V Maximum Output Current A Programmable Output-Voltage Slew Rate from 0.5 mV/s to 10 mV/s 2-MHz Switching Frequency Spread-Spectrum Mode and Phase Interleaving for EMI Reduction Two Linear Regulators: Input Voltage: V Output Voltage: 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) 5-mm VQFN Package with Wettable Flanks Simplified Schematic

The LP873222-Q1 is designed to meet the power management requirements in automotive applications. The device contains two step-down DCDC converters and two linear regulators and generalpurpose digital-output signals. The device is controlled an I2C-compatible serial interface and by an enable signal. The automatic PWM/PFM (AUTO mode) operation gives high efficiency over a wide output-current range. The LP873222-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 LP873222-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. Device Information

PART NUMBER LP873222-Q1 PACKAGE VQFN (28) BODY SIZE (NOM) 5.00 mm
(1) For all available packages, see the orderable addendum at the end of the data sheet.

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA.

Features.................................................................. Applications........................................................... Description............................................................. Revision History..................................................... Pin Configuration and Functions......................... Specifications.........................................................

Absolute Maximum Ratings...................................... 5 ESD Ratings............................................................ 5 Recommended Operating Conditions....................... 5 Thermal Information.................................................. 6 Electrical Characteristics........................................... 6 I2C Serial Bus Timing Parameters.......................... 11 Typical Characteristics............................................ 13 Overview................................................................. Functional Block Diagram....................................... Feature Description................................................ Device Functional Modes........................................

Device Support...................................................... Receiving Notification of Documentation Updates Community Resources.......................................... Trademarks........................................................... Electrostatic Discharge Caution............................ Glossary................................................................

DATE June 2017 REVISION * NOTES Initial release
Submit Documentation Feedback Product Folder Links: LP873222-Q1

PIN NUMBER NAME FB_B0 FB_B1 AGND VANA VOUT_LDO1 VIN_LDO1 nINT CLKIN SW_B1 PGND_B1 SCL SDA SGND PGND_B0 TYPE (1) P/O A G P/I D/I P/O P/I D/O D/I/O P/I P/O P/G D/I D/I/O G P/G DESCRIPTION LDO0 output. LDO0 is not used, leave the pin floating. Output voltage feedback (positive) for Buck 0 Output voltage feedback (positive) for Buck 1 Ground Supply voltage for analog and digital blocks. Must be connected to same node with VIN_Bx. Programmable enable signal for regulators and GPOs. If the pin is not used, leave the pin floating. LDO1 output. LDO1 is not used, leave the pin floating. Power input for LDO1 is not used, connect the pin to VANA. Open-drain interrupt output. Active LOW. If the pin is not used, connect the pin to ground. External clock input. Alternative function is general-purpose digital output (GPO2). If the pin is not used, leave the pin floating. Input for Buck 1. The separate power pins VIN_Bx are not connected together internally VIN_Bx pins must be connected together in the application and be locally bypassed. Buck 1 switch node. If the Buck 1 is not used, leave the pin floating. Power ground for Buck 1 Serial interface clock input for I2C access. Connect a pullup resistor. If the I2C interface is not used, connect the pin to Ground. Serial interface data input and output for I2C access. Connect a pullup resistor. If the I2C interface is not used, connect the pin to Ground. Ground Power ground for Buck 0

A: Analog Pin, D: Digital Pin, G: Ground Pin, P: Power Pin, I: Input Pin, O: Output Pin Submit Documentation Feedback Product Folder Links: LP873222-Q1 3


 

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