Active Member
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[China]
Address: Room 36B1-B2, Building C, Electronics Science & Technology Building Shennan Mid-Road, Shenzhen China
Contact name:Sharon Yang
Anterwell Technology Ltd. |
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TL499ACPSR WIDE-RANGE POWER-SUPPLY CONTROLLERS laser rust removal electronic led converter
Stock LIST
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| LT1963AEST-3.3 | 1974 | LT | 16+ | SOT-223 |
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| LM3424MH | 1450 | NSC | 13+ | TSSOP-20 |
| MT48LC1M16A1TG-7SE | 7261 | MICRON | 10+ | TSOP |
| MC74LCX16245DTR2 | 4068 | ON | 14+ | TSSOP |
| PMEG4050EP | 45000 | NXP | 15+ | SOD-128 |
| MBRF1045 | 17313 | ON | 10+ | TO-220 |
►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
