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Mehrkanal-ICs (PMICs)

LP3907-Q1

AKTIV

Zweifacher DC/DC-Abwärtsregler & zweifacher Linearregler, hoher Strom, mit I2C-kompatibler Schnittst

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Datenblatt

LP3907-Q1

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Processor supplier Generic Processor name Generic Regulated outputs (#) 4 Step-down DC/DC converter 2 Step-up DC/DC converter 0 LDO 2 Vin (min) (V) 2.8 Vin (max) (V) 5.5 Vout (min) (V) 0.8 Vout (max) (V) 3.5 Iout (max) (A) 1 Configurability Factory programmable, Software configurable Features Comm control, Dynamic voltage scaling, Enable, Overcurrent protection, Power good, Synchronous rectification, Thermal shutdown, UVLO adjustable Rating Automotive Operating temperature range (°C) -40 to 125 Step-down DC/DC controller 0 Step-up DC/DC controller 0 Iq (typ) (mA) 0.04 Switching frequency (max) (kHz) 2100 Shutdown current (ISD) (typ) (µA) 3 Switching frequency (typ) (kHz) 2100 Product type Processor and FPGA
Processor supplier Generic Processor name Generic Regulated outputs (#) 4 Step-down DC/DC converter 2 Step-up DC/DC converter 0 LDO 2 Vin (min) (V) 2.8 Vin (max) (V) 5.5 Vout (min) (V) 0.8 Vout (max) (V) 3.5 Iout (max) (A) 1 Configurability Factory programmable, Software configurable Features Comm control, Dynamic voltage scaling, Enable, Overcurrent protection, Power good, Synchronous rectification, Thermal shutdown, UVLO adjustable Rating Automotive Operating temperature range (°C) -40 to 125 Step-down DC/DC controller 0 Step-up DC/DC controller 0 Iq (typ) (mA) 0.04 Switching frequency (max) (kHz) 2100 Shutdown current (ISD) (typ) (µA) 3 Switching frequency (typ) (kHz) 2100 Product type Processor and FPGA
DSBGA (YZR) 25 7.5625 mm² 2.75 x 2.75 WQFN (RTW) 24 16 mm² 4 x 4
  • Qualified for Automotive Applications
  • AEC Q100-Qualified With the Following Results
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
  • Input Voltage Range: 2.8 V to 5.5 V
  • Compatible with Advanced Applications Processors and FPGAs
  • 2 LDOs for Powering Internal Processor Functions and I/Os
  • High-Speed Serial Interface for Independent Control of Device Functions and Settings
  • Precision Internal Reference
  • Thermal Overload Protection
  • Current Overload Protection
  • Software Programmable Regulators
  • External Power-On-Reset Function for Buck1 and Buck2 (Power Good with Delay Function)
  • Undervoltage Lockout Detector to Monitor Input Supply Voltage
  • Step-Down DC-DC Converters (Buck)
    • Programmable VOUT from:
      • Buck1 : 0.8 V–2 V at 1 A
      • Buck2 : 1 V–3.5 V at 600 mA
    • Up to 96% Efficiency
    • 2.1-MHz PWM Switching Frequency
    • PWM-to-PFM Automatic Mode Change
      Under Low Loads
    • ±3% Output Voltage Accuracy
    • Automatic Soft Start
  • Linear Regulators (LDO)
    • Programmable VOUT of 1 V to 3.5 V
    • 300-mA Output Current
    • 30-mV (typical) Dropout
  • Qualified for Automotive Applications
  • AEC Q100-Qualified With the Following Results
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
  • Input Voltage Range: 2.8 V to 5.5 V
  • Compatible with Advanced Applications Processors and FPGAs
  • 2 LDOs for Powering Internal Processor Functions and I/Os
  • High-Speed Serial Interface for Independent Control of Device Functions and Settings
  • Precision Internal Reference
  • Thermal Overload Protection
  • Current Overload Protection
  • Software Programmable Regulators
  • External Power-On-Reset Function for Buck1 and Buck2 (Power Good with Delay Function)
  • Undervoltage Lockout Detector to Monitor Input Supply Voltage
  • Step-Down DC-DC Converters (Buck)
    • Programmable VOUT from:
      • Buck1 : 0.8 V–2 V at 1 A
      • Buck2 : 1 V–3.5 V at 600 mA
    • Up to 96% Efficiency
    • 2.1-MHz PWM Switching Frequency
    • PWM-to-PFM Automatic Mode Change
      Under Low Loads
    • ±3% Output Voltage Accuracy
    • Automatic Soft Start
  • Linear Regulators (LDO)
    • Programmable VOUT of 1 V to 3.5 V
    • 300-mA Output Current
    • 30-mV (typical) Dropout

The LP3907-Q1 device is a multi-function, programmable power management unit (PMU) optimized for low-power FPGAs, microprocessors, and DSPs. This device integrates two highly efficient 1-A, 600-mA step-down DC-DC converters with dynamic voltage scaling (DVS), two 300-mA linear regulators, and a 400-kHz I2C interface to allow a host controller access to the internal control registers of the device. The LP3907-Q1 additionally features programmable power-on sequencing. This device is an Automotive-Grade Product that is AECQ-100 Grade 1 Qualified.

Features include programmable power-on sequencing, communication control (I2C), dynamic voltage scaling, overcurrent protection, Power Good, synchronous rectification, thermal shutdown, and undervoltage lockout. For applications requiring light loads, the high-efficiency synchronous switching buck regulators enter PFM mode and operate with reduced switching frequency and supply current to maintain high efficiency at very light loads.

The LP3907-Q1 device is a multi-function, programmable power management unit (PMU) optimized for low-power FPGAs, microprocessors, and DSPs. This device integrates two highly efficient 1-A, 600-mA step-down DC-DC converters with dynamic voltage scaling (DVS), two 300-mA linear regulators, and a 400-kHz I2C interface to allow a host controller access to the internal control registers of the device. The LP3907-Q1 additionally features programmable power-on sequencing. This device is an Automotive-Grade Product that is AECQ-100 Grade 1 Qualified.

Features include programmable power-on sequencing, communication control (I2C), dynamic voltage scaling, overcurrent protection, Power Good, synchronous rectification, thermal shutdown, and undervoltage lockout. For applications requiring light loads, the high-efficiency synchronous switching buck regulators enter PFM mode and operate with reduced switching frequency and supply current to maintain high efficiency at very light loads.
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Technische Dokumentation

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Typ Titel Datum
* Data sheet LP3907-Q1 Dual 1-A and 600-mA Buck Converters and Dual 300-mA LDOs With I2C Interface for Automotive Applications datasheet (Rev. C) PDF | HTML 10 Jan 2018
User guide Evaluation Kit for LP3907 Programmable Pwr Management Unit w/ I2C Compatible I/F (Rev. A) 30 Apr 2013
Application note Saving Energy via Smart Power Management (Power Designer-118) 17 Feb 2012

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