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TL499A-宽电压范围电源控制器
TL499A-转换器(集成开关)-DC/DC开关稳压器-电源管理
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TL499A - 宽电压范围电源控制器

TL499A是TI公司(德州仪器)的一款转换器(集成开关)产品,TL499A是宽电压范围电源控制器,本站介绍了TL499A的产品说明、应用、特性等,并给出了与TL499A相关的TI元器件型号供参考.

TL499A - TL499A Wide-Range Power-Supply Controllers - TI德州仪器(Texas Instruments)

产品特性
  • Internal Series-Pass and Step-Up Switching Regulator
  • Output Adjustable From 2.9 V to 30 V
  • 1-V to 10-V Input for Switching Regulator
  • 4.5-V to 32-V Input for Series Regulator
  • Externally Controlled Switching Current
  • No External Rectifier Required
产品应用
  • Voltage Boosting
  • Dual-Supply Voltage Reglation
  • Battery Back-Ups
  • Microprocessor Memory Power
产品说明

The TL499A device is an integrated circuit designed to provide a wide range of adjustable regulated supply voltages. The regulated output voltage can be varied from 2.9 V to 30 V by adjusting two external resistors. When the TL499A is ac-coupled to line power through a step-down transformer, it operates as a series DC voltage regulator to maintain the regulated output voltage. With the addition of a battery from 1.1 V to 10 V, an inductor, a filter capacitor, and two resistors, the TL499A operates as a step-up switching regulator during an AC-line failure. The adjustable regulated output voltage makes the TL499A useful for a wide range of applications. Providing backup power during an AC-line failure makes the TL499A extremely useful in microprocessor memory applications. The TL499AC is characterized for operation from –20°C to +85°C.

产品器件信息
PART NUMBERPACKAGE (PIN)BODY SIZE (NOM)
TL499ASO (8)6.20 mm × 5.30 mm
PDIP (8)9.81 mm × 6.35 mm
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