Analog Devices announces the LTC1871X wide input range, current mode, boost, flyback or SEPIC controller that drives an N-channel power MOSFET and requires few external components. Intended for low to medium power applications, it eliminates the need for a current sense resistor by utilizing the power MOSFET’s on-resistance, thereby maximizing efficiency. The LTC1871X’s design is optimized for high temperature environments up to 175°C. Features include:
- 100% Tested at 175°C
- ±2% Reference Accuracy Over –40°C to 175°C Range
- High Efficiency (No Sense Resistor Required)
- Wide Input Voltage Range: 2.5V to 36V
- Current Mode Control Provides Excellent Transient Response
- High Maximum Duty Cycle (92% Typ)
- ±2% RUN Pin Threshold with 100mV Hysteresis
- Micropower Shutdown: IQ = 10μA
- Programmable Operating Frequency (65kHz to 900kHz) with One External Resistor
- Synchronizable to an External Clock up to 1.3 × fOSC
- User-Controlled Pulse-Skipping or Burst Mode® Operation
- Internal 5.2V Low Dropout Voltage Regulator
- Output Overvoltage Protection
- Capable of Operating with a Sense Resistor for High Output Voltage Applications
- Small 10-Lead MSOP Package
Price is $125.00 each/1,000. For more info and a datasheet, go to http://www.linear.com/product/LTC1871X