LT3060 データシートの表示（PDF） - Linear Technology

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LT3060

45V VIN, Micropower, Low Noise, 100mA Low Dropout, Linear Regulator

Linear Technology 

LT3060

ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. (Note 3)

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

Note 6: To satisfy minimum input voltage requirements, the LT3060 is

may cause permanent damage to the device. Exposure to any Absolute

tested and specified for these conditions with an external resistor divider

Maximum Rating condition for extended periods may affect device

(bottom 115k, top 365k) for an output voltage of 2.5V. The external

reliability and lifetime.

resistor divider adds 5μA of DC load on the output. The external current is

Note 2: Absolute maximum input-to-output differential voltage is not

not factored into GND pin current.

achievable with all combinations of rated IN pin and OUT pin voltages.

Note 7: Dropout voltage is the minimum input-to-output voltage

With the IN pin at 50V, the OUT pin may not be pulled below 0V. The total

differential needed to maintain regulation at a specified output current. In

measured voltage from IN to OUT must not exceed ±50V.

Note 3: The LT3060 is tested and specified under pulse load conditions

dropout, the output voltage equals: (VIN – VDROPOUT). For some output

voltages, minimum input voltage requirements limit dropout voltage.

such that TJ ≅ TA. The LT3060E regulator is 100% tested at TA = 25°C.

Performance at –40°C to 125°C is assured by design, characterization

Note 8: GND pin current is tested with VIN = V(OUT(NOMINAL) + 0.5V and a

current source load. GND pin current will increase in dropout. See GND pin

and correlation with statistical process controls. The LT3060I regulator is

current curves in the Typical Performance Characteristics section.

guaranteed over the full –40°C to 125°C operating junction temperature

range. The LT3060MP is 100% tested over the –55°C to 125°C operating

junction temperature range. The LT3060H is 100% tested over the

–40°C to 150°C operating junction temperature range. High junction

temperatures degrade operating lifetimes. Operating lifetime is derated at

junction temperatures greater than 125°C.

Note 4: The LT3060 is tested and specified for these conditions with the

ADJ connected to the OUT pin.

Note 5: Maximum junction temperature limits operating conditions. The

regulated output voltage specification does not apply for all possible

combinations of input voltage and output current. Limit the output current

range if operating at the maximum input-to-output voltage differential.

Limit the input-to-output voltage differential if operating at maximum

output current. Current limit foldback will limit the maximum output

current as a function of input-to-output voltage. See Current Limit vs

VIN – VOUT in the Typical Performance Characteristics section.

Note 9: ADJ pin bias current flows out of the ADJ pin.

Note 10: SHDN pin current flows into the SHDN pin.

Note 11: Reverse output current is tested with the IN pin grounded and the

OUT pin forced to the rated output voltage. This current flows into the OUT

pin and out of the GND pin.

Note 12: To satisfy requirements for minimum input voltage, current limit

is tested at VIN = VOUT(NOMINAL) + 1V or VIN = 2.1V, whichever is greater.

Note 13: This IC includes overtemperature protection that protects the

device during momentary overload conditions. Junction temperature

will exceed 125°C (LT3060E, LT3060I, LT3060MP) or 150°C (LT3060H)

when overtemperature circuitry is active. Continuous operation above the

specified maximum junction temperature may impair device reliability.

Note 14: The dropout voltage specification is guaranteed for the DFN

package. The dropout voltage specification for high output currents cannot

be guaranteed for the TS8 package due to production test limitations.

3060f

4

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