LT3430-1 High Voltage, 3A, 200kHz Step-Down Switching Regulator
The LT3430/LT3430-1 are monolithic buck switching regulators that accept input voltages up to 60V. A high efficiency 3A, 0.1Ω switch is included on the die along with all the necessary oscillator, control and logic circuitry. A current mode architecture provides fast transient response and excellent loop stability.
Special design techniques and a new high voltage process achieve high efficiency over a wide input range. Efficiency is maintained over a wide output current range by using the output to bias the circuity and by utilizing a supply boost capacitor to saturate the power switch. Patented circuity* maintains peak switch current over the full duty cycle range. A shutdown pin reduces supply current to 30µA and a SYNC pin can be externally synchronized with a logic level input from 228kHz to 700kHz for the LT3430 or from 125kHz to 250kHz for the LT3430-1.
The LT3430/LT3430-1 are available in a thermally enhanced 16-pin TSSOP package
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LT3430-1 订购信息和价格参考Package Variations and Pricing
| 器件型号 | 封装 | 引脚 | 温度 | 价格 (以 1 ~ 99 片为批量) | 价格 (以 1000 片为批量) * |
| LT3430EFE | TSSOP | 16 | E | $7.07 | $4.95 |
| LT3430EFE#PBF | TSSOP | 16 | E | $7.07 | $4.95 |
| LT3430EFE#TR | TSSOP | 16 | E | $5.07 | |
| LT3430EFE#TRPBF | TSSOP | 16 | E | $5.07 | |
| LT3430EFE-1#PBF | TSSOP | 16 | E | $7.07 | $4.95 |
| LT3430EFE-1#TRPBF | TSSOP | 16 | E | $5.07 | |
| LT3430IFE | TSSOP | 16 | I | $8.13 | $5.69 |
| LT3430IFE#PBF | TSSOP | 16 | I | $8.13 | $5.69 |
| LT3430IFE#TR | TSSOP | 16 | I | $5.81 | |
| LT3430IFE#TRPBF | TSSOP | 16 | I | $5.81 | |
| LT3430IFE-1#PBF | TSSOP | 16 | I | $8.13 | $5.69 |
| LT3430IFE-1#TRPBF | TSSOP | 16 | I | $5.81 |
LT3430-1 数据手册及相关资料下载
- 数据手册(英文) : LT3430/LT3430-1 - Photoflash Capacitor Chargers with Automatic Refresh.PDF
- 设计要点 (英文) : DN303 - Photoflash Capacitor Charger Has Fast Efficient Charging and Low-Battery Drain.PDF
- 可靠性数据 : R324 Reliability Data .PDF
