The LTC®3830/LTC3830-1 are high power, high efficiency switching regulator controllers optimized for 3.3V-5V to 1.xV-3.xV step-down applications. A precision internal reference and feedback system provide ±1% output regulation over temperature, load current and line voltage variations. The LTC3830/LTC3830-1 use a synchronous switching architecture with N-channel MOSFETs. Additionally, the chip senses output current through the drain-source resistance of the upper N-channel FET, providing an adjustable current limit without a current sense resistor.
The LTC3830/LTC3830-1 operate with an input supply voltage as low as 3V and with a maximum duty cycle of >91% over temperature. They include a fixed frequency PWM oscillator for low output ripple operation. The 200kHz free-running clock frequency can be externally adjusted or synchronized with an external signal from 100kHz to 500kHz. In shutdown mode, the LTC3830 supply current drops to <10µA. The LTC3830-1 differs from the LTC3830 S8 version by replacing shutdown with a soft-start function.
For a similar, pin compatible DC/DC converter with an output voltage as low as 0.6V, please refer to the LTC3832.
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) * |
---|---|---|---|---|
LTC3830-1ES8#PBF | SO-8 | E | $3.61 | $3.05 |
LTC3830-1ES8#TRPBF | SO-8 | E | $3.11 | |
LTC3830EGN#PBF | SSOP-16 | E | $4.50 | $3.80 |
LTC3830EGN#TRPBF | SSOP-16 | E | $3.86 | |
LTC3830ES#PBF | SO-16 | E | $4.14 | $3.50 |
LTC3830ES#TRPBF | SO-16 | E | $3.56 | |
LTC3830ES8#PBF | SO-8 | E | $3.61 | $3.05 |
LTC3830ES8#TRPBF | SO-8 | E | $3.11 |
器件型号 | 描述 | 价格 |
---|---|---|
DC469A | LTC3830EGN | High Efficiency Step-Down Power Supply, 3V to 8V Input, 2.5/1.8/1.5Vout @ 15A | $125.00 |
DC493A | LTC3830-1ES8 | Low Voltage, 8A DC/DC Converter, Vin = 3V - 8V, Vout = 1.8V @ 8A Max. | $125.00 |