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1. Describe
LM1086IS-3.3/NOPB is a voltage regulator with the largest differential pressure 1.5 V at 1.5 A load current. The device has Same pins as TI's industry standard LM317. Two resistors are required to set the output voltage Adjustable output voltage version of LM1086. The fixed output voltage version integrates adjustments Resistor. Usually, no input capacitor is required Unless device distance Input filter capacitor. The output capacitor can Replace with ceramic and appropriate ESR. The LM1086 circuit includes a Zener adjustment Band gap reference, current limiting and thermal Turn off. Because the LM1086 regulator is floating And only detect the difference between input and output Voltage, a few hundred volts can be As long as the maximum input to output is adjusted Do not exceed the difference. Exceed the maximum Input to output differential will cause a short circuit Output. By connecting a fixed resistor between Adjust pin and output, LM1086 can also Used as a precision current regulator.
2. Feature
1. Provide fixed 1.8V, 2.5V, 3.3V, 5V
2. Provide adjustable version
3. Current limiting and thermal protection
4. 2% output accuracy
5. Output current 1.5 A
6. Line adjustment rate 0.015% (typical value)
7. Load regulation rate is 0.1% (typical value)
8. Maximum input voltage up to 29V
9. Minimum adjustable output voltage as low as 1.25V
10. Stable ceramic output capacitor and ESR
11. Temperature range: -40°C to 125°C
3. Pin Configuration
4. Pin Functions
5. Application
1. High-efficiency linear regulator
2. battery charger
3. Post-regulation of switching power supply
4. Constant current regulator
5. Microprocessor power supply
6. Audio amplifier supply
7. Fire alarm control
