Datasheet LT3009 (Analog Devices) - 5

HerstellerAnalog Devices
Beschreibung3µA IQ, 20mA Low Dropout Linear Regulators
Seiten / Seite20 / 5 — ELECTRICAL CHARACTERISTICS. The. denotes the specifi cations which apply …
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DokumentenspracheEnglisch

ELECTRICAL CHARACTERISTICS. The. denotes the specifi cations which apply over the full operating

ELECTRICAL CHARACTERISTICS The denotes the specifi cations which apply over the full operating

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LT3009

Textversion des Dokuments

LT3009 Series
ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TJ = 25°C. (Note 2) PARAMETER CONDITIONS MIN TYP MAX UNITS
Output Voltage Noise (Note 9) COUT = 1μF, ILOAD = 20mA, BW = 10Hz to 100kHz 150 μVRMS ADJ Pin Bias Current l –10 0.3 10 nA Shutdown Threshold VOUT = Off to On l 0.66 1.5 V VOUT = On to Off l 0.2 0.36 V SHDN Pin Current VSHDN = 0V, VIN = 20V l ±1 μA VSHDN = 20V, VIN = 20V l 0.5 1.6 μA Quiescent Current in Shutdown VIN = 6V, VSHDN = 0V l <1 μA Ripple Rejection (Note 3) VIN – VOUT = 1.5V, VRIPPLE = 0.5VP-P, fRIPPLE = 120Hz, ILOAD = 20mA LT3009 60 72 dB LT3009-1.2 57 68 dB LT3009-1.5 55.5 67 dB LT3009-1.8 54 66 dB LT3009-2.5 52 63 dB LT3009-3.3 49 61 dB LT3009-5 44 56 dB Current Limit VIN = 20V, VOUT = 0 60 mA VIN = VOUT(NOMINAL) + 1V, VOUT = – 5% l 22 mA Input Reverse Leakage Current VIN = –20V, VOUT = 0 l 200 350 μA Reverse Output Current VOUT = 1.2V, VIN = 0 0.6 10 μA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings the output voltage equals (VIN – VDROPOUT). For the LT3009-1.2, dropout may cause permanent damage to the device. Exposure to any Absolute voltage will be limited by the minimum input voltage under some voltage/ Maximum Rating condition for extended periods may affect device load conditions. reliability and lifetime.
Note 6:
To satisfy minimum input voltage requirements, the LT3009
Note 2:
The LT3009 regulators are tested and specifi ed under pulse adjustable version is tested and specifi ed for these conditions with an load conditions such that TJ ≈ TA. The LT3009E is guaranteed to meet external resistor divider (61.9k bottom, 280k top) which sets VOUT to 3.3V. performance specifi cations from 0°C to 125°C operating junction The external resistor divider adds 9.69μA of DC load on the output. This temperature. Specifi cations over the –40 °C to 125°C operating junction external current is not factored into GND pin current. temperature range are assured by design, characterization and correlation
Note 7:
GND pin current is tested with VIN = VOUT(NOMINAL) + 0.5V and a with statistical process controls. The LT3009I is guaranteed over the full current source load. GND pin current will increase in dropout. For the fi xed –40°C to 125°C operating junction temperature range. output voltage versions, an internal resistor divider will add to the GND
Note 3:
The LT3009 adjustable version is tested and specifi ed for these pin current ( 2μA for the LT3009-5, 1μA for the LT3009-1.2, LT3009-1.5, conditions with the ADJ pin connected to the OUT pin. LT3009-1.8, LT3009-2.5 and LT3009-3.3). See the GND Pin Current curves
Note 4:
Operating conditions are limited by maximum junction temperature. in the Typical Performance Characteristics section. The regulated output voltage specifi cation will not apply for all possible
Note 8:
The SHDN pin can be driven below GND only when tied to the IN combinations of input voltage and output current. When operating at the pin directly or through a pull-up resistor. If the SHDN pin is driven below maximum input voltage, the output current range must be limited. When GND by more than –0.3V while IN is powered, the output will turn on. operating at the maximum output current, the input voltage must be limited.
Note 9:
Output noise is listed for the adjustable version with the ADJ pin
Note 5:
Dropout voltage is the minimum input to output voltage differential connected to the OUT pin. See the RMS Output Noise vs Load Current needed to maintain regulation at a specifi ed output current. In dropout, curve in the Typical Performance Characteristics Section. 3009fd 5