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AC/DC 和 DC/DC 轉換器 (整合式 FET)

LM8801

現行

適用行動應用的高精度 6MHz、600 mA 同步降壓 DC-DC 轉換器

立即訂購
產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
功能相同，但引腳輸出與所比較的裝置不同
TPS62843 現行 1.8V 至 5.5V 輸入，600mA 超低 IQ 降壓轉換器 Smaller solution size with 275-nA IQ and 0.4-V to 3.6-V VOUT

LM8801

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Operating temperature range (°C) -30 to 85 Topology Buck Type Converter Iout (max) (A) 0.6 Vin (min) (V) 2.3 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 5600 Switching frequency (max) (kHz) 6400 Features Enable, Forced PWM, Light Load Efficiency, Light load efficiency Control mode Voltage mode Vout (min) (V) 1.7927 Vout (max) (V) 1.8473 Iq (typ) (µA) 27 Duty cycle (max) (%) 98
Rating Catalog Operating temperature range (°C) -30 to 85 Topology Buck Type Converter Iout (max) (A) 0.6 Vin (min) (V) 2.3 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 5600 Switching frequency (max) (kHz) 6400 Features Enable, Forced PWM, Light Load Efficiency, Light load efficiency Control mode Voltage mode Vout (min) (V) 1.7927 Vout (max) (V) 1.8473 Iq (typ) (µA) 27 Duty cycle (max) (%) 98
DSBGA (YFQ) 6 1.4000000000000001 mm² 1.4000000000000001 x 1 DSBGA (YQA) 6 0.36000000000000012000000000000001 mm² 0.6000000000000001 x 0.6000000000000001
  • Over 90% Efficiency at 6 MHz Operation
  • 600 mA Maximum Load Capability
  • 6 MHz PWM Fixed Switching Frequency (typ.)
  • 27 µA (typ.) Quiescent Current in PFM Mode
  • Wide Input Voltage Range: 2.3V to 5.5V
  • VOUT = 1.0V to 2.9V with 50 mV steps
  • ±1.5% DC Output Voltage Precision Over Temperature
  • Best-in-Class Load Transient Response
  • Low Output Ripple in PFM Mode
  • Automatic PFM/PWM Mode Switching
  • Current Overload and Thermal Shutdown Protection
  • Internal Soft-Start
  • 6-bump DSBGA Package
    • (1.065 x 1.265 , 0.6 mm or 0.25 mm height)
  • Total Solution Size < 7mm2 (works with 0402 capacitors)
  • UVLO

All trademarks are the property of their respective owners.

  • Over 90% Efficiency at 6 MHz Operation
  • 600 mA Maximum Load Capability
  • 6 MHz PWM Fixed Switching Frequency (typ.)
  • 27 µA (typ.) Quiescent Current in PFM Mode
  • Wide Input Voltage Range: 2.3V to 5.5V
  • VOUT = 1.0V to 2.9V with 50 mV steps
  • ±1.5% DC Output Voltage Precision Over Temperature
  • Best-in-Class Load Transient Response
  • Low Output Ripple in PFM Mode
  • Automatic PFM/PWM Mode Switching
  • Current Overload and Thermal Shutdown Protection
  • Internal Soft-Start
  • 6-bump DSBGA Package
    • (1.065 x 1.265 , 0.6 mm or 0.25 mm height)
  • Total Solution Size < 7mm2 (works with 0402 capacitors)
  • UVLO

All trademarks are the property of their respective owners.

The LM8801 step-down DC-DC converter is optimized for powering ultra-low voltage circuits from a single Li-Ion cell and input voltage rails from 2.3V to 5.5V. It provides up to 600 mA load current over the entire input voltage range.

The LM8801 has a mode-control pin that allows the user to select continuous PWM operation over the complete load range or an auto PFM-PWM mode that changes modes automatically depending on the load. During PWM mode, the device operates at a fixed-frequency of 6 MHz (typ.). In Auto PFM-PWM mode, hysteretic PFM extends the battery life through reduction of the quiescent current during light loads and system standby.

The LM8801 is available in a 6-bump DSBGA package. Only three compact external surface-mount components, an inductor and two capacitors, are required.

The LM8801 step-down DC-DC converter is optimized for powering ultra-low voltage circuits from a single Li-Ion cell and input voltage rails from 2.3V to 5.5V. It provides up to 600 mA load current over the entire input voltage range.

The LM8801 has a mode-control pin that allows the user to select continuous PWM operation over the complete load range or an auto PFM-PWM mode that changes modes automatically depending on the load. During PWM mode, the device operates at a fixed-frequency of 6 MHz (typ.). In Auto PFM-PWM mode, hysteretic PFM extends the battery life through reduction of the quiescent current during light loads and system standby.

The LM8801 is available in a 6-bump DSBGA package. Only three compact external surface-mount components, an inductor and two capacitors, are required.
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類型 標題 日期
* Data sheet High Precision 6MHz, 600 mA Sync Step-Down DC-DC Converter for Mobile Apps datasheet (Rev. H) 2013年 5月 3日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
EVM User's guide AN-1961 LM8801 Evaluation Board (Rev. A) 2013年 5月 3日

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DSBGA (YFQ) 6 Ultra Librarian
DSBGA (YQA) 6 Ultra Librarian
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