LP3905

現行

適用低功耗手持式應用的電源管理 IC (PMIC)

產品詳細資料

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.

下載 觀看有字幕稿的影片 影片

您可能會感興趣的類似產品

open-in-new 比較替代產品
功能與所比較的裝置相似
LM26480-Q1 現行 外部可編程雙 1.5A 降壓 DC/DC 及雙 300mA 線性穩壓器 This product has a higher current rating and is AEQ-100 qualified.

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件,然後再試一次。
檢視所有 3
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

設計與開發

如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。

封裝 針腳 CAD 符號、佔位空間與 3D 模型
WSON (NHL) 14 Ultra Librarian

訂購與品質

內含資訊:
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
內含資訊:
  • 晶圓廠位置
  • 組裝地點

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

內容係由 TI 和社群貢獻者依「現狀」提供,且不構成 TI 規範。檢視使用條款

若有關於品質、封裝或訂購 TI 產品的問題,請參閱 TI 支援。​​​​​​​​​​​​​​

影片