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AC/DC 和 DC/DC 轉換器 (整合式 FET)

LT1054

現行

配備穩壓器的 3.5 V 至 15 VIN、100-mA 輸出電流切換電容器電壓轉換器

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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
LM2660 現行 100mA 切換式電容器電壓轉換器 Smaller quiescent current, smaller solution size

LT1054

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Operating temperature range (°C) -40 to 85 Type Charge pump Iout (max) (A) 0.1 Vin (min) (V) 3.5 Vin (max) (V) 15 Switching frequency (min) (kHz) 1 Switching frequency (max) (kHz) 100 Features Integrated LDO, Unregulated Vout (min) (V) -1.25 Vout (max) (V) -15 Iq (typ) (µA) 2500
Rating Catalog Operating temperature range (°C) -40 to 85 Type Charge pump Iout (max) (A) 0.1 Vin (min) (V) 3.5 Vin (max) (V) 15 Switching frequency (min) (kHz) 1 Switching frequency (max) (kHz) 100 Features Integrated LDO, Unregulated Vout (min) (V) -1.25 Vout (max) (V) -15 Iq (typ) (µA) 2500
PDIP (P) 8 92.5083 mm² 9.81 x 9.43 SOIC (DW) 16 106.09 mm² 10.3 x 10.3
  • Output Current, 100 mA
  • Low Loss, 1.1 V at 100 mA
  • Operating Range, 3.5 V to 15 V
  • Reference and Error Amplifier for Regulation
  • External Shutdown
  • External Oscillator Synchronization
  • Devices Can Be Paralleled
  • Pin-to-Pin Compatible With the LTC1044/7660
  • Output Current, 100 mA
  • Low Loss, 1.1 V at 100 mA
  • Operating Range, 3.5 V to 15 V
  • Reference and Error Amplifier for Regulation
  • External Shutdown
  • External Oscillator Synchronization
  • Devices Can Be Paralleled
  • Pin-to-Pin Compatible With the LTC1044/7660

The LT1054 device is a bipolar, switched-capacitor voltage converter with regulator. It provides higher output current and significantly lower voltage losses than previously available converters. An adaptive-switch drive scheme optimizes efficiency over a wide range of output currents.

Total voltage drop at 100-mA output current typically is 1.1 V. This applies to the full supply-voltage range of 3.5 V to 15 V. Quiescent current typically is 2.5 mA.

The LT1054 also provides regulation, a feature previously not available in switched-capacitor voltage converters. By adding an external resistive divider, a regulated output can be obtained. This output is regulated against changes in both input voltage and output current. The LT1054 can also shut down by grounding the feedback terminal. Supply current in shutdown typically is 100 µA.

The internal oscillator of the LT1054 runs at a nominal frequency of 25 kHz. The oscillator terminal can be used to adjust the switching frequency or to externally synchronize the LT1054.

The LT1054C is characterized for operation over a free-air temperature range of 0°C to 70°C. The LT1054I is characterized for operation over a free-air temperature range of −40°C to 85°C.

The LT1054 device is a bipolar, switched-capacitor voltage converter with regulator. It provides higher output current and significantly lower voltage losses than previously available converters. An adaptive-switch drive scheme optimizes efficiency over a wide range of output currents.

Total voltage drop at 100-mA output current typically is 1.1 V. This applies to the full supply-voltage range of 3.5 V to 15 V. Quiescent current typically is 2.5 mA.

The LT1054 also provides regulation, a feature previously not available in switched-capacitor voltage converters. By adding an external resistive divider, a regulated output can be obtained. This output is regulated against changes in both input voltage and output current. The LT1054 can also shut down by grounding the feedback terminal. Supply current in shutdown typically is 100 µA.

The internal oscillator of the LT1054 runs at a nominal frequency of 25 kHz. The oscillator terminal can be used to adjust the switching frequency or to externally synchronize the LT1054.

The LT1054C is characterized for operation over a free-air temperature range of 0°C to 70°C. The LT1054I is characterized for operation over a free-air temperature range of −40°C to 85°C.
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* Data sheet LT1054 Switched-Capacitor Voltage Converters With Regulators datasheet (Rev. G) PDF | HTML 2015年 7月 31日

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