Anterwell Technology Ltd.
Large Original stock of IC Electronics Components, Transistors, Diodes etc.
High Quality, Reasonable Price, Fast Delivery.
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Output Voltage, VO: | 35 V | Input Voltage, Series Regulator, VI1: | 35 V |
---|---|---|---|
Input Voltage, Switching Regulator, VI2: | 10 V | Blocking-diode Reverse Voltage: | 35 V |
Blocking-diode Forward Current: | 1 A | ||
High Light: | electronic integrated circuit,linear integrated circuits |
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►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
description
The TL499A 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
functional block diagram
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