Datasheet LT3030 (Analog Devices) - 8

制造商Analog Devices
描述Dual 750mA/250mA Low Dropout, Low Noise, Micropower Linear Regulator
页数 / 页22 / 8 — Typical perForMance characTerisTics TJ = 25°C, unless otherwise noted. …
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Typical perForMance characTerisTics TJ = 25°C, unless otherwise noted. Reverse Current. OUT1 Input Ripple Rejection

Typical perForMance characTerisTics TJ = 25°C, unless otherwise noted Reverse Current OUT1 Input Ripple Rejection

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LT3030
Typical perForMance characTerisTics TJ = 25°C, unless otherwise noted. Reverse Current OUT1 Input Ripple Rejection OUT1 Input Ripple Rejection
500 100 100 V 450 IN1 = VIN2 = 0V V 90 90 ADJ1 = VOUT1 = 1.220V 400 VADJ2 = VOUT2 = 1.220V 80 80 350 70 C 70 CBYP1 = 10nF OUT1 = 47µF CBYP1 = 1000pF 300 60 C 60 OUT1 = 22µF 250 50 50 CBYP1 = 100pF 200 IADJ1 OR IADJ2 40 40 COUT1 = 10µF 150 IOUT1 30 30 REVERSE CURRENT (µA) RIPPLE REJECTION (dB) T RIPPLE REJECTION (dB) T 100 20 J = 25°C J = 25°C I 20 L1 = 750mA, CBYP1 = 0 IL1 = 750mA, COUT1 = 22µF 50 IOUT2 10 VIN1 = VOUT1(NOMINAL) + 1V 10 VIN1 = VOUT1(NOMINAL) + 1V + 50mVRMS RIPPLE + 50mVRMS RIPPLE 0 0 0 –75 –25 0 25 50 75 100 125 150 175 10 100 1k 10k 100k 1M 10M 10 100 1k 10k 100k 1M 10M TEMPERATURE (°C) FREQUENCY (Hz) FREQUENCY (Hz) 3030 G28 3030 G29 3030 G30 IADJ = FLOWS INTO ADJ PIN TO GND PIN IOUT = FLOWS INTO OUT PIN TO IN PIN
OUT1 Input Ripple Rejection OUT2 Input Ripple Rejection OUT2 Input Ripple Rejection
100 100 100 90 90 90 80 80 C 80 OUT2 = 10µF CBYP2 = 10nF 70 70 CBYP2 = 1000pF C 70 OUT2 = 22µF 60 60 60 50 50 50 CBYP2 = 100pF 40 40 40 COUT2 = 3.3µF 30 30 30 RIPPLE REJECTION (dB) V RIPPLE REJECTION (dB) T RIPPLE REJECTION (dB) T 20 IN1 = VOUT1(NOMINAL) + 1.5V J = 25°C J = 25°C + 500mV 20 20 P-P RIPPLE IL2 = 250mA, CBYP2 = 0 IL2 = 250mA, COUT2 = 10µF 10 f = 120Hz 10 VIN2 = VOUT2(NOMINAL) + 1V 10 VIN2 = VOUT2(NOMINAL) + 1V IL1 = 750mA + 50mVRMS RIPPLE + 50mVRMS RIPPLE 0 0 0 –75 –50 –25 0 25 50 75 100 125 150 175 10 100 1k 10k 100k 1M 10M 10 100 1k 10k 100k 1M 10M TEMPERATURE (°C) FREQUENCY (Hz) FREQUENCY (Hz) 3030 G31 3030 G32 3030 G33
OUT2 Input Ripple Rejection Channel-to-Channel Isolation Channel-to-Channel Isolation
100 100 90 90 80 80 CHANNEL 1 V TION (dB) OUT1 70 70 100mV/DIV CHANNEL 2 60 60 50 50 VOUT2 40 40 100mV/DIV 30 30 GIVEN CHANNEL IS TESTED WITH RIPPLE REJECTION (dB) V 50mV 20 IN2 = VOUT2(NOMINAL) + 1.5V RMS SIGNAL ON OPPOSING + 500mV 20 P-P RIPPLE CHANNEL, BOTH CHANNELS 50µs/DIV 3030 G36 10 f = 120Hz CHANNEL-TO-CHANNEL ISOLA 10 DELIVERING FULL CURRENT I C ∆I L2 = 250mA TJ = 25°C OUT1 = 10µF L1 = 50mA TO 750mA 0 0 COUT2 = 3.3µF ∆IL2 = 50mA TO 250mA –75 –50 –25 0 25 50 75 100 125 150 175 10 100 1k 10k 100k 1M 10M CBYP1 = CBYP2 = 0.01µF VIN = 6V, VOUT1 = VOUT2 = 5V TEMPERATURE (°C) FREQUENCY (Hz) 3030 G34 3030 G35 3030fa 8 For more information www.linear.com/LT3030 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 Typical Application Related Parts