Datasheet LT1121, LT1121-3.3, LT1121-5 (Analog Devices) - 7

Производитель	Analog Devices
Описание	Micropower Low Dropout Regulators with Shutdown
Страниц / Страница	16 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS. LT1121. Shutdown Pin Current. …
Формат / Размер файла	PDF / 275 Кб
Язык документа	английский

TYPICAL PERFORMANCE CHARACTERISTICS. LT1121. Shutdown Pin Current. Shutdown Pin Input Current. Adjust Pin Bias Current

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LT1121

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Текстовая версия документа

LT1121/LT1121-3.3/LT1121-5
TYPICAL PERFORMANCE CHARACTERISTICS LT1121 Shutdown Pin Current Shutdown Pin Input Current Adjust Pin Bias Current
10 25 400 VSHDN = 0V 9 350 A) μ 8 20 300 7 6 15 250 5 200 4 10 150 3 100 SHUTDOWN PIN CURRENT ( 2 5 ADJUST PIN BIAS CURRENT (nA) 1 SHUTDOWN PIN INPUT CURRENT (mA) 50 0 0 0 –50 –25 0 25 50 75 100 125 0 1 2 3 4 5 6 7 8 9 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) SHUTDOWN PIN VOLTAGE (V) TEMPERATURE (°C) 1121 G19 1121 G20 1121 G21
Reverse Output Current Current Limit Current Limit
30 400 400 VIN = 0V VOUT = 0V VIN = 7V VOUT = 5V (LT1121-5) 350 350 VOUT = 0V 25 VOUT = 3.3V (LT1121-3.3) A) V μ OUT = 3.8V (LT1121) 300 300 20 250 250 15 200 200 150 150 10 CURRENT LIMIT (mA) 100 100 OUTPUT PIN CURRENT ( 5 SHORT-CIRCUIT CURRENT (mA) 50 50 0 0 0 –50 –25 0 25 50 75 100 125 0 1 2 3 4 5 6 7 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) INPUT VOLTAGE (V) TEMPERATURE (°C) 1121 G22 1121 G23 1121 G24
Reverse Output Current Ripple Rejection Ripple Rejection
100 64 100 T J = 25°C VIN = VOUT (NOMINAL) + 1V IOUT = 100mA 90 VIN = 0V + 0.5V 90 VIN = 6V + 50mVRMS RIPPLE CURRENT FLOWS 62 P-P RIPPLE AT f = 120Hz IOUT = 100mA A) 80 INTO OUTPUT PIN 80 μ 70 60 70 COUT = 47μF SOLID TANTALUM 60 LT1121 60 (V 58 50 OUT = VADJ) 50 40 56 40 LT1121-3.3 30 30 RIPPLE REJECTION (dB) 54 RIPPLE REJECTION (dB) C OUTPUT PIN CURRENT ( OUT = 1μF 20 20 SOLID TANTALUM LT1121-5 52 10 10 0 50 0 0 1 2 3 4 5 6 7 8 9 10 –50 –25 0 25 50 75 100 125 10 100 1k 10k 100k 1M OUTPUT VOLTAGE (V) TEMPERATURE (°C) FREQUENCY (Hz) 1121 G25 1121 G27 1121 G26 1121fg 7 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Applications Information Package Description Revision History Related Parts

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