LT3086ER#TRPBF

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1. Describe

The LT®3086-EP is a versatile, low dropout, low noise 2.1A linear regulator that operates from a 1.4V to 40V input supply range. The dropout at 2.1A is typically 330mV. A resistor sets the output voltage from 0.4V to 32V. Output voltage tolerance is guaranteed to ±1% line, load and temperature. The LT3086-EP has a regulated ceramic output capacitor that requires at least 10µF. The LT3086-EP's programmable cable drop compensation eliminates output voltage errors caused by resistors connected to the load. The master/slave configuration allows multiple units to be paralleled for higher load current and heat dissipation without the need for external ballast resistors. Output current and temperature monitoring and power good flags provide system diagnostics and debug capabilities. Internal fault circuitry includes thermal shutdown and foldback current limit. Thermal limit and current limit are also externally programmable. The LT3086-EP is available in a thermally enhanced 16-lead TSSOP package. More application and technical information can be found in the LT3086 data sheet

2. Feature

    1. Wide input voltage range: 1.4V to 40V

    2. 1 resistor to set the output voltage: 0.4V to 32V

    3. Output current: 2.1A

    4. ±1% line, load and temperature tolerance

    5. Output current monitor: IMON = IOUT/1000

    6. Temperature monitor with programmable thermal limit

    7. Programmable cable drop compensation

    8. Parallel multiple devices to provide higher current

    9. differential pressure: 330mV

  10. 1 capacitor soft-start output to reduce noise

  11. Low output noise: 40µVRMS (10Hz to 100kHz)

  12. Precision, programmable external current limit

  13. Power good flag with programmable threshold

  14. Ceramic output capacitor: 10µF minimum

  15. Quiescent current at shutdown: <1µA

  16. Reverse battery, current and output protection

  17. 16-pin TSSOP available

3. Application

    1. Programmable Linear Regulator

    2. Post regulator for switching power supply

    3. USB power

    4. High reliability power supply

4. Enhanced Features

    1. Supports defense and aerospace applications (AQEC standard)

    2. Military temperature range (−55°C to 125°C)

    3. Controlled baseline

    4. Assembly/Test Site

    5. production base

    6. Product Change Notification

    7. Eligibility data available upon request

5. Pin configuration

6. Pin Description

    1. GND : Ground.

    2. ILIM : External Current Limit Programming.

    3. IMON : Output Current Monitor.

    4. CDC : Cable Drop Compensation.

    5. RPWRGD : PowerGood ThresholdVoltageProgramming.

    6. SET : Output Voltage Programming.

    7. OUT : Output. These pin(s) supply power to the load.

    8. IN : Input.

    9. SHDN : Shutdown/UVLO.

  10. TEMP : Die JunctionTemperature.

  11. TRACK : Track pin for paralleling.

  12. PWRGD : Power Good Flag.