LT1962 Linear Technology, LT1962 Datasheet
LT1962
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LT1962 Summary of contents
Page 1
... A quiescent current makes them an ideal choice. Quiescent current is well controlled; it does not rise in dropout as it does with many other regulators. A key feature of the LT1962 regulators is low output noise. With the addition of an external 0.01 F bypass capacitor, output noise drops bandwidth. The LT1962 regulators are stable with output capacitors as low as 3 ...
Page 2
... U PACKAGE/ORDER I FOR ATIO OUT 1 SENSE/ADJ* 2 BYP 3 GND 4 8-LEAD PLASTIC MSOP *PIN 2: SENSE FOR LT1962-2.5/LT1962-3/ LT1962-3.3/LT1962-5. ADJ FOR LT1962 T = 150 C, JMAX SEE THE APPLICATIONS INFORMATION SECTION FOR ADDITIONAL INFORMATION ON THERMAL RESISTANCE Consult factory for Industrial and Military grade parts. = 3V, I ...
Page 3
... IN pin and OUT pin voltages. With the IN pin at 20V, the OUT pin may not be pulled below 0V. The total measured voltage from in to out can not exceed 20V. Note 3: The LT1962 regulators are tested and specified under pulse load conditions such that T T ...
Page 4
... ADJ (Pin 2): Adjust. For the adjustable LT1962, this is the input to the error amplifier. This pin is internally clamped to 7V. It has a bias current of 30nA which flows into the pin ...
Page 5
... In battery backup applications where the output can be held backup battery when the input is pulled to ground, the LT1962-X acts like it has a diode in series with its output and prevents reverse current flow. Additionally, in dual supply applications where the regulator load is re- ...
Page 6
... APPLICATIO S I FOR ATIO and provide improved transient response for larger load current changes. Bypass capacitors, used to decouple individual components powered by the LT1962, will in- crease the effective output capacitor value. With larger capacitors used to bypass the reference (for low noise operation), larger values of output capacitance are needed. ...
Page 7
... The device will protect both itself and the load. This provides protection against batteries which can be plugged in backward. The output of the LT1962 can be pulled below ground without damaging the device. If the input is left open circuit or grounded, the output can be pulled below ground by 20V ...
Page 8
... Current flow back into the output will follow the curve shown in Figure 6. When the IN pin of the LT1962 is forced below the OUT pin or the OUT pin is pulled above the IN pin, input current will typically drop to less than 2 A. This can happen if the input ...