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多通道 IC (PMIC)

LP3905

現行

適用低功耗手持式應用的電源管理 IC (PMIC)

立即訂購
產品規格表

LP3905

現行
產品規格表 立即訂購

產品詳細資料

Regulated outputs (#) 4 Step-down DC/DC converter 2 Step-up DC/DC converter 0 LDO 2 Vin (min) (V) 3 Vin (max) (V) 5.5 Vout (min) (V) 1 Vout (max) (V) 3.3 Iout (max) (A) 0.6 Configurability Factory programmable, Hardware configurable Features Enable pin, Overcurrent protection, Thermal shutdown Rating Catalog Operating temperature range (°C) -40 to 85 Step-down DC/DC controller 0 Step-up DC/DC controller 0 Iq (typ) (mA) 0.14 Switching frequency (max) (kHz) 2000 Shutdown current (ISD) (typ) (µA) 6.5 Switching frequency (typ) (kHz) 2000
Regulated outputs (#) 4 Step-down DC/DC converter 2 Step-up DC/DC converter 0 LDO 2 Vin (min) (V) 3 Vin (max) (V) 5.5 Vout (min) (V) 1 Vout (max) (V) 3.3 Iout (max) (A) 0.6 Configurability Factory programmable, Hardware configurable Features Enable pin, Overcurrent protection, Thermal shutdown Rating Catalog Operating temperature range (°C) -40 to 85 Step-down DC/DC controller 0 Step-up DC/DC controller 0 Iq (typ) (mA) 0.14 Switching frequency (max) (kHz) 2000 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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類型 標題 日期
* Data sheet LP3905 Power Management Unit For Low Power Handheld Applications datasheet (Rev. D) 2013年 5月 3日
EVM User's guide AN-1501 LP3905-30 Evaluation Board Information (Rev. A) 2013年 4月 30日
User guide AN-1527 LP3905-A3 Application Board Information (Rev. B) 2013年 4月 30日

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WSON (NHL) 14 Ultra Librarian
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