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AC/DC 和 DC/DC 控制器 (外部 FET)

TL499A

現行

寬電壓範圍電源供應控制器

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LM5157 現行 具雙隨機展頻的 6A/4A、50-V、2.2-MHz 大範圍 VIN 升壓、返馳式、SEPIC 轉換器 Lower quiescent current, wider voltage range

TL499A

現行
產品規格表 立即訂購

產品詳細資料

Vin (min) (V) 1.1 Vin (max) (V) 10 Operating temperature range (°C) -20 to 85 Topology Boost Rating Catalog Vout (min) (V) 2.9 Vout (max) (V) 30 Features Nonsynchronous rectification Iq (typ) (µA) 800 Duty cycle (max) (%) 70
Vin (min) (V) 1.1 Vin (max) (V) 10 Operating temperature range (°C) -20 to 85 Topology Boost Rating Catalog Vout (min) (V) 2.9 Vout (max) (V) 30 Features Nonsynchronous rectification Iq (typ) (µA) 800 Duty cycle (max) (%) 70
PDIP (P) 8 92.5083 mm² 9.81 x 9.43 SOP (PS) 8 48.36 mm² 6.2 x 7.8
  • 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
  • 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

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.

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.
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* Data sheet TL499A Wide-Range Power-Supply Controllers datasheet (Rev. H) PDF | HTML 2015年 11月 30日

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

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