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Circuitos integrados multicanal (PMIC)

LP3972

NO RECOMENDADO PARA NUEVOS DISEÑOS

IC de gestión de energía (PMIC) para procesadores de aplicaciones avanzadas

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LP3972

NO RECOMENDADO PARA NUEVOS DISEÑOS
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Detalles del producto

Processor supplier Marvell Processor name PXA Product type Processor and FPGA Vin (min) (V) 2.7 Vin (max) (V) 5.5 Vout (min) (V) 0.725 Vout (max) (V) 3.3 Iout (max) (A) 1.6 Configurability Factory programmable, Software configurable Features Comm control, Dynamic voltage scaling, Enable, Overcurrent protection, Power good, Power sequencing, Synchronous rectification, Thermal shutdown, UVLO adjustable Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (mA) 0.29 Switching frequency (max) (kHz) 2000
Processor supplier Marvell Processor name PXA Product type Processor and FPGA Vin (min) (V) 2.7 Vin (max) (V) 5.5 Vout (min) (V) 0.725 Vout (max) (V) 3.3 Iout (max) (A) 1.6 Configurability Factory programmable, Software configurable Features Comm control, Dynamic voltage scaling, Enable, Overcurrent protection, Power good, Power sequencing, Synchronous rectification, Thermal shutdown, UVLO adjustable Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (mA) 0.29 Switching frequency (max) (kHz) 2000
WQFN (RSB) 40 25 mm² (5 mm × 5 mm)
  • Compatible With Advanced Applications Processors Requiring Dynamic Voltage Management (DVM)
  • Backup Battery Charger With Automatic Switch for Lithium-Manganese Coin-Cell Batteries and Super Capacitors
  • I2C-Compatible High-Speed Serial Interface
  • Software Control of Regulator Functions and Settings
  • Thermal and Current Overload Protections
  • Three Buck Regulators for Powering High-Current Processor Functions or I/Os
    • Programmable VOUT from 0.725 V to 3.3 V
    • Up to 95% Efficiency and 1.6-A Output Current
    • ±3% Output Voltage Accuracy
  • Six LDOs for Powering RTC, Peripherals, and I/Os
    • Programmable VOUT of 1 V to 3.3 V
    • ±3% Output Voltage Accuracy
      • LDO_RTC 30 mA
      • LDO1 300 mA
      • LDO2 150 mA
      • LDO3 150 mA
      • LDO4 150 mA
      • LDO5 400 mA
  • Compatible With Advanced Applications Processors Requiring Dynamic Voltage Management (DVM)
  • Backup Battery Charger With Automatic Switch for Lithium-Manganese Coin-Cell Batteries and Super Capacitors
  • I2C-Compatible High-Speed Serial Interface
  • Software Control of Regulator Functions and Settings
  • Thermal and Current Overload Protections
  • Three Buck Regulators for Powering High-Current Processor Functions or I/Os
    • Programmable VOUT from 0.725 V to 3.3 V
    • Up to 95% Efficiency and 1.6-A Output Current
    • ±3% Output Voltage Accuracy
  • Six LDOs for Powering RTC, Peripherals, and I/Os
    • Programmable VOUT of 1 V to 3.3 V
    • ±3% Output Voltage Accuracy
      • LDO_RTC 30 mA
      • LDO1 300 mA
      • LDO2 150 mA
      • LDO3 150 mA
      • LDO4 150 mA
      • LDO5 400 mA

The LP3972 is a multi-function programmable power management unit (PMU) designed especially for advanced application processors. The LP3972 is optimized for low-power handheld applications and provides six low-dropout low-noise linear regulators, three DC-DC magnetic buck regulators, a backup battery charger, and two GPIOs. A high-speed serial interface is included to program individual regulator output voltages as well as on and off control.

For all available packages, see the orderable addendum at the end of the data sheet.

The LP3972 is a multi-function programmable power management unit (PMU) designed especially for advanced application processors. The LP3972 is optimized for low-power handheld applications and provides six low-dropout low-noise linear regulators, three DC-DC magnetic buck regulators, a backup battery charger, and two GPIOs. A high-speed serial interface is included to program individual regulator output voltages as well as on and off control.

For all available packages, see the orderable addendum at the end of the data sheet.
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* Hoja de datos LP3972 Power Management Unit for Advanced Application Processors datasheet (Rev. L) PDF | HTML 30/11/2015

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