LT3092EST 200mA Negative LDO 0.8μV RMS Noise 76dB PSRR 1.5-36V Input SOT-223 -40°C to +125°C

LT3092EST 200mA Negative LDO 0.8μV RMS Noise 76dB PSRR 1.5-36V Input SOT-223 -40°C to +125°C

FeaTures

 Programmable 2-Terminal Current Source

Maximum Output Current: 200mA

Wide Input Voltage Range: 1.2V to 40V

 Input/Output Capacitors Not Required

 Resistor Ratio Sets Output Current

 Initial Set Pin Current Accuracy: 1%

 Reverse-Voltage Protection

 Reverse-Current Protection

 <0.001%/V Line Regulation Typical

 Current Limit and Thermal Shutdown Protection

 Available in 8-Lead SOT-23, 3-Lead SOT-223 and 8-Lead 3mm × 3mm DFN Packages

applicaTions

 2-Terminal Floating Current Source

 GND Referred Current Source

 Variable Current Source

 In-Line Limiter

 Intrinsic Safety Circuits

DescripTion

The LT®3092 is a programmable 2-terminal current source. It requires only two resistors to set an output current between 0.5mA and 200mA. A multitude of analog techniques lend themselves to actively programming the output current. The LT3092 is stable without input and output capacitors, offering high DC and AC impedance. This feature allows operation in intrinsically safe applications.

The SET pin features 1% initial accuracy and low tem perature coefficient. Current regulation is better than 10ppm/V from 1.5V to 40V.

The LT3092 can operate in a 2-terminal current source configuration in series with signal lines. It is ideal for driv ing sensors, remote supplies, and as a precision current limiter for local supplies.

Internal protection circuitry includes reverse-battery and reverse-current protection, current limiting and thermal limiting. The LT3092 is offered in the 8-lead TSOT-23, 3-lead SOT-223 and 8-lead 3mm × 3mm DFN packages.

INFORMATION

Drawing

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