LT1738是Linear公司的一款超低噪声稳压器产品，LT1738是Slew Rate Controlled Ultralow Noise DC/DC Controller，本站介绍了LT1738的封装应用图解、特点和优点、功能等，并给出了与LT1738相关的凌力尔特元器件型号供参考。
LT1738 - Slew Rate Controlled Ultralow Noise DC/DC Controller
LT1738 - Slew Rate Controlled Ultralow Noise DC/DC Controller - Linear Technology（凌力尔特）
The LT?1738 is a switching regulator controller designed to lower conducted and radiated electromagnetic interference (EMI). Ultralow noise and EMI are achieved by controlling the voltage and current slew rates of an exter-nal N-channel MOSFET switch. Current and voltage slew rates can be independently set to optimize harmonic content of the switching waveforms vs efficiency. The LT1738 can reduce high frequency harmonic power by as much as 40dB with only minor losses in efficiency.
The LT1738 utilizes a current mode architecture optimized for single switch topologies such as boost, flyback and Cuk. The IC includes gate drive and all necessary oscillator, control and protection circuitry. Unique error amp circuitry can regulate both positive and negative voltages. The internal oscillator may be synchronized to an external clock for more accurate placement of switching harmonics.
Protection features include gate drive lockout for low VIN, soft-start, output current limit, short-circuit current limit-ing, gate drive overvoltage clamp and input supply undervoltage lockout.
| 器件型号 | 封装 | 温度 | 价格 (以 1 ~ 99 片为批量) | 价格 (以 1000 片为批量) |
|---|---|---|---|---|
| LT1738EG | SSOP-20 | E | $4.85 | $4.10 |
| LT1738EG#PBF | SSOP-20 | E | $4.85 | $4.10 |
| LT1738EG#TR | SSOP-20 | E | $4.20 | |
| LT1738EG#TRPBF | SSOP-20 | E | $4.20 | |
| LT1738IG | SSOP-20 | I | $5.50 | $4.65 |
| LT1738IG#PBF | SSOP-20 | I | $5.50 | $4.65 |
| LT1738IG#TR | SSOP-20 | I | $4.75 | |
| LT1738IG#TRPBF | SSOP-20 | I | $4.75 |
