LP3905

활성

저전력 휴대형 애플리케이션을 위한 전원 관리 IC(PMIC)

제품 상세 정보

Regulated outputs (#) 4 Configurability Factory programmable, Hardware configurable Vin (min) (V) 3 Vin (max) (V) 5.5 Vout (min) (V) 1 Vout (max) (V) 3.3 Iout (max) (A) 0.6 Features Enable pin, Overcurrent protection, Thermal shutdown Step-up DC/DC converter 0 Step-down DC/DC converter 2 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 2 Iq (typ) (mA) 0.14 Rating Catalog Switching frequency (max) (kHz) 2000 Operating temperature range (°C) -40 to 85 Shutdown current (ISD) (typ) (µA) 6.5 Switching frequency (typ) (kHz) 2000
Regulated outputs (#) 4 Configurability Factory programmable, Hardware configurable Vin (min) (V) 3 Vin (max) (V) 5.5 Vout (min) (V) 1 Vout (max) (V) 3.3 Iout (max) (A) 0.6 Features Enable pin, Overcurrent protection, Thermal shutdown Step-up DC/DC converter 0 Step-down DC/DC converter 2 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 2 Iq (typ) (mA) 0.14 Rating Catalog Switching frequency (max) (kHz) 2000 Operating temperature range (°C) -40 to 85 Shutdown current (ISD) (typ) (µA) 6.5 Switching frequency (typ) (kHz) 2000
WSON (NHL) 14 16 mm² 4 x 4
  • Two Buck Regulators for Powering High Current Processor Functions or Peripheral Devices
  • Two Linear Regulators for Powering Internal Processor Functions and I/Os
  • One Enable Pin for Buck1 and Linear Regulators 1 and 2
  • Separate Enable Pin for Buck2
  • Thermal and Current Overload Protection
  • Small 14–Pin WSON Package (4x4mmx0.8mm)

Key Specifications

  • Buck Regulators
    • Fixed and Adjustable Voltage Options, Range 1.0V to 3.3V(1)
    • Up to 90% Efficiency
    • Auto-Switching PFM-PWM Mode and Fixed PWM Mode
    • 2MHz PWM Fixed Switching Frequency (Typ)
    • 600mA Output Current
    • ±4% Output Voltage Accuracy Over Temp
    • Internal SoftStart
    • 2.2µH Inductor, 10µF Input and Output Caps
  • Linear Regulators
    • Output Options in the Range 1.5V to 3.3V
    • 13.5µVrms Output Voltage Noise
    • PSRR - 70dB @ 1kHz
    • ±3% Output Voltage Accuracy Over Full Line and Load Regulation
    • 0mA to 150mA Output Current
    • Cin = 1.0µF, Cout = 0.47µF for 100mA O/P
    • Cin = 1.0µF, Cout = 1.0µF for 150mA O/P
    • 80mV Dropout Voltage
  • Two Buck Regulators for Powering High Current Processor Functions or Peripheral Devices
  • Two Linear Regulators for Powering Internal Processor Functions and I/Os
  • One Enable Pin for Buck1 and Linear Regulators 1 and 2
  • Separate Enable Pin for Buck2
  • Thermal and Current Overload Protection
  • Small 14–Pin WSON Package (4x4mmx0.8mm)

Key Specifications

  • Buck Regulators
    • Fixed and Adjustable Voltage Options, Range 1.0V to 3.3V(1)
    • Up to 90% Efficiency
    • Auto-Switching PFM-PWM Mode and Fixed PWM Mode
    • 2MHz PWM Fixed Switching Frequency (Typ)
    • 600mA Output Current
    • ±4% Output Voltage Accuracy Over Temp
    • Internal SoftStart
    • 2.2µH Inductor, 10µF Input and Output Caps
  • Linear Regulators
    • Output Options in the Range 1.5V to 3.3V
    • 13.5µVrms Output Voltage Noise
    • PSRR - 70dB @ 1kHz
    • ±3% Output Voltage Accuracy Over Full Line and Load Regulation
    • 0mA to 150mA Output Current
    • Cin = 1.0µF, Cout = 0.47µF for 100mA O/P
    • Cin = 1.0µF, Cout = 1.0µF for 150mA O/P
    • 80mV Dropout Voltage

LP3905 is a multi-functional Power Management Unit, optimized for low power handheld applications. This device integrates two 600mA DC-DC buck regulators and two 150mA linear regulators. Fixed and adjustable buck output versions are available. The LP3905 additionally features two enable pins for the device output control and is offered in an WSON package.

LP3905 is a multi-functional Power Management Unit, optimized for low power handheld applications. This device integrates two 600mA DC-DC buck regulators and two 150mA linear regulators. Fixed and adjustable buck output versions are available. The LP3905 additionally features two enable pins for the device output control and is offered in an WSON package.

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관심 가지실만한 유사 제품

open-in-new 대안 비교
비교 대상 장치와 유사한 기능
LM26480-Q1 활성 외부 구성 가능한 듀얼 1.5A 스텝다운 DC/DC 및 듀얼 300mA 선형 레귤레이터 This product has a higher current rating and is AEQ-100 qualified.

기술 문서

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모두 보기3
유형 직함 날짜
* Data sheet LP3905 Power Management Unit For Low Power Handheld Applications datasheet (Rev. D) 2013/05/03
EVM User's guide AN-1501 LP3905-30 Evaluation Board Information (Rev. A) 2013/04/30
User guide AN-1527 LP3905-A3 Application Board Information (Rev. B) 2013/04/30

설계 및 개발

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패키지 다운로드
WSON (NHL) 14 옵션 보기

주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

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