Datasheet LT1965 (Analog Devices) - 9

制造商Analog Devices
描述1.1A, Low Noise, Low Dropout Linear Regulator
页数 / 页22 / 9 — typical perForMance characteristics. SHDN Pin Input Current. ADJ Pin Bias …
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typical perForMance characteristics. SHDN Pin Input Current. ADJ Pin Bias Current. Current Limit vs VIN – VOUT

typical perForMance characteristics SHDN Pin Input Current ADJ Pin Bias Current Current Limit vs VIN – VOUT

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LT1965

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LT1965 Series
typical perForMance characteristics SHDN Pin Input Current SHDN Pin Input Current ADJ Pin Bias Current
6 6.0 4.5 VSHDN = 20V 5.9 4.0 5 5.8 3.5 4 5.7 3.0 5.6 2.5 3 5.5 2.0 5.4 PIN INPUT CURRENT (µA) 2 PIN INPUT CURRENT (µA) 5.3 1.5 SHDN 1 ADJ PIN BIAS CURRENT (µA) 1.0 SHDN 5.2 5.1 0.5 0 5.0 0 0 2 4 6 8 10 12 14 16 18 20 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 SHDN PIN VOLTAGE (V) TEMPERATURE (°C) TEMPERATURE (°C) 1965 G27 1965 G28 1965 G29
Current Limit vs VIN – VOUT Current Limit vs Temperature Reverse-Output Current
2.5 3.0 6 ∆VOUT = 100mV VIN = 7V TJ = 25°C VOUT = 0V VIN = 0V T 2.5 LT1965 V 2.0 J = –50°C 5 OUT = VADJ (LT1965) V T OUT = VSENSE J = 125°C T (LT1965-1.5/-1.8/-2.5/-3.3) J = 25°C 2.0 4 CURRENT FLOWS INTO 1.5 OUTPUT PIN 1.5 3 LT1965-1.5 1.0 CURRENT LIMIT (A) TJ = 150°C CURRENT LIMIT (A) 1.0 2 LT1965-1.8 0.5 0.5 REVERSE OUTPUT CURRENT (mA) 1 LT1965-2.5 0 0 0 LT1965-3.3 0 2 4 6 8 10 12 14 16 18 20 –50 –25 0 25 50 75 100 125 150 0 1 2 3 4 5 6 7 8 9 INPUT/OUTPUT DIFFERENTIAL (V) TEMPERATURE (°C) OUTPUT VOLTAGE (V) 1965 G30 1965 G31 1965 G32
Reverse-Output Current Ripple Rejection vs Frequency
0.6 90 VIN = 0V VOUT = 1.2V (LT1965) 80 0.5 VOUT = 1.5V (LT1965-1.5) VOUT = 1.8V (LT1965-1.8) 70 VOUT = 2.5V (LT1965-2.5) 0.4 V 60 OUT = 3.3V (LT1965-3.3) LT1965-1.5/-1.8/-2.5/-3.3 50 0.3 40 LT1965 0.2 30 RIPPLE REJECTION (dB) 20 IL = 0.75A C REVERSE OUTPUT CURRENT (mA) 0.1 OUT = 10µF CERAMIC 10 VIN = VOUT(NOMINAL) + 1V + 50mVRMS RIPPLE 0 0 –50 –25 0 25 50 75 100 125 150 10 100 1k 10k 100k 1M TEMPERATURE (°C) FREQUENCY (Hz) 1965 G33 1965 G34 1965fb For more information www.linear.com/LT1965 9 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Applications Information Typical Applications Package Description Revision History Related Parts