홈 전력 관리 멀티 채널 IC(PMIC)
홈
전력 관리
멀티 채널 IC(PMIC)

LP87332D

활성

AM570x용 산업용 듀얼 3A 벅 컨버터 및 듀얼 선형 레귤레이터

지금 주문하기
데이터 시트

LP87332D

활성
데이터 시트 지금 주문하기

제품 상세 정보

Processor supplier Texas Instruments Processor name Sitara AM57x Product type Processor and FPGA 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) 0.7 Vout (max) (V) 3.36 Iout (max) (A) 3 Configurability Factory programmable, Software configurable Features Enable pin, I2C control, Power good, Power sequencing, Spread-Spectrum Clock (SSC) Generation, Thermal shutdown, UVLO adjustable Rating Catalog Operating temperature range (°C) -40 to 125 Step-down DC/DC controller 0 Step-up DC/DC controller 0 Iq (typ) (mA) 0.009 Switching frequency (max) (kHz) 2200 Switching frequency (typ) (kHz) 2000
Processor supplier Texas Instruments Processor name Sitara AM57x Product type Processor and FPGA 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) 0.7 Vout (max) (V) 3.36 Iout (max) (A) 3 Configurability Factory programmable, Software configurable Features Enable pin, I2C control, Power good, Power sequencing, Spread-Spectrum Clock (SSC) Generation, Thermal shutdown, UVLO adjustable Rating Catalog Operating temperature range (°C) -40 to 125 Step-down DC/DC controller 0 Step-up DC/DC controller 0 Iq (typ) (mA) 0.009 Switching frequency (max) (kHz) 2200 Switching frequency (typ) (kHz) 2000
VQFN (RHD) 28 25 mm² (5 mm × 5 mm)
  • 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
    • 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
    • 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 LP87332D is designed to meet the power management requirements of the latest processors and platforms in industrial applications. The device has two step-down DC/DC converters, 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 gives high efficiency over a wide output-current range. The LP87332D 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 LP87332D device supports load-current measurement without the addition of external current-sense resistors. The LP87332D device also supports programmable start-up and shutdown delays and sequences including GPO signals synchronized to the enable signal. A second GPO signal is available with pin multiplexing of CLKIN pin, if external clock is not needed. During start-up and voltage change, the device controls the output slew rate to minimize output voltage overshoot and the in-rush current.

The LP87332D is designed to meet the power management requirements of the latest processors and platforms in industrial applications. The device has two step-down DC/DC converters, 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 gives high efficiency over a wide output-current range. The LP87332D 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 LP87332D device supports load-current measurement without the addition of external current-sense resistors. The LP87332D device also supports programmable start-up and shutdown delays and sequences including GPO signals synchronized to the enable signal. A second GPO signal is available with pin multiplexing of CLKIN pin, if external clock is not needed. 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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기술 자료

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2개 모두 보기
상위 문서 유형 직함 형식 옵션 최신 영어 버전 다운로드 날짜
* 데이터 시트 LP87332D Dual High-Current Buck Converter and Dual Linear Regulator datasheet (Rev. A) PDF | HTML 2021. 6. 4
사용 설명서 LP87332D and LP873220 User’s Guide to Power AM570x (Rev. A) 2018. 7. 10

설계 및 개발

전원 공급 솔루션

LP87332D을 포함하는 솔루션을 살펴보세요. TI는 칩(SoC), 프로세서, 마이크로컨트롤러, 센서 또는 FPGA(Field Programmable Gate Array)의 TI와 비TI 시스템을 위한 전원 공급 솔루션을 제공합니다.

솔루션 보기
시뮬레이션 모델

LP87332-Q1 PSpice Transient Model (Rev. A)

SNVMB16A.ZIP (207 KB) - PSpice 모델
지원되는 제품 및 하드웨어
계산 툴

PEET-GUI — TPS6594-Q1, LP8756-Q1, LP8758, LP8770 및 TPS650330-Q1용 효율성 예측 툴

The PMIC Efficiency Estimator Tool (PEET GUI) is a graphical user interface used to easily evaluate PMIC DC/DC regulator efficiency relative to your design conditions. The PEET GUI can be used to configure each DC/DC regulator separately and provides real-time efficiency and power dissipation data (...)
지원되는 제품 및 하드웨어
레퍼런스 디자인

TIPA-050045 — LP87332D 또는 LP87322 PMIC를 사용한 AM570 전원 공급 장치 설계

이 전원 공급 장치 설계는 AM57x 프로세서에 전원을 공급하기 위해 최적화된 전력 관리 IC(PMIC)를 설명합니다. 사용 설명서는 LP87332D 및 LP873220 전원 장치로 AM570x에 전원을 공급하기 위한 가이드로 사용할 수 있습니다. 이 사용 설명서에서는 OTP 구성과 함께 플랫폼 연결과 전원 업/다운 시퀀스에 대해 설명합니다.

지원되는 제품 및 하드웨어
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VQFN (RHD) 28 Ultra Librarian
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