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Datasheet LTC3105 (Analog Devices) - 5

ПроизводительAnalog Devices
Описание400mA Step-Up DC/DC Converter with Maximum Power Point Control and 250mV Start-Up
Страниц / Страница18 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS. TA = 25°C, VAUX = VOUT = 3.3V, VLDO …
Формат / Размер файлаPDF / 496 Кб
Язык документаанглийский

TYPICAL PERFORMANCE CHARACTERISTICS. TA = 25°C, VAUX = VOUT = 3.3V, VLDO = 2.2V,. VIN = 0.6V, unless otherwise noted

TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VAUX = VOUT = 3.3V, VLDO = 2.2V, VIN = 0.6V, unless otherwise noted

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LTC3105
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VAUX = VOUT = 3.3V, VLDO = 2.2V, VIN = 0.6V, unless otherwise noted. Exiting MPPC Control on IPEAK and IVALLEY Current Limit Input Voltage Step Change vs Temperature Efficiency vs VIN
1.0 100 V V IN VOLTAGE MPPC = 400mV V I OUT = 3V PEAK 200mV/DIV I 0.5 LOAD = 10mA 90 LDO = 2.2V 0 I 80 VALLEY INDUCTOR –0.5 CURRENT 100mA/DIV 70 –1.0 MPPC VOLTAGE EFFICIENCY (%) 60 200mV/DIV –1.5 CHANGE FROM 25°C (%) –2.0 50 –2.5 40 15µs/DIV –45 –30 –15 0 15 30 45 60 75 90 0.25 1.25 2.25 3.25 4.25 5.25 3105 G10 TEMPERATURE (°C) INPUT VOLTAGE (V) 3105 G11 3105 G12
Efficiency vs Output Current and Input and Output Burst Ripple Power Loss, VOUT = 3.3V
90 1000 V V V IN = 0.6V OUT = 3.3V IN = 0.6V EFFICIENCY CIN = 470µF IOUT = 15mA 80 VIN = 0.8V C V OUT = 10µF IN = 1V 70 OUTPUT 100 POWER LOSS (mW) VOLTAGE 60 50mV/DIV 50 SW CURRENT 10 200mA/DIV 40 EFFICIENCY (%) POWER LOSS 30 20 1 INPUT VOLTAGE 10 5mV/DIV 0 0.1 50µs/DIV 0.01 0.1 1 10 100 3105 G13 OUTPUT CURRENT (mA) 3105 G14
Efficiency vs Output Current and No-Load Input Current Power Loss, VOUT = 5V vs Input Voltage
100 1000 800 V V IN = 3V OUT = 3.3V 90 VIN = 2V 700 VIN = 1.5V 80 100 POWER LOSS (mW) 600 EFFICIENCY 70 500 60 10 400 50 300 EFFICIENCY (%) POWER LOSS INPUT CURRENT (µA) 40 1 200 30 100 20 0.1 0 0.01 0.1 1 10 100 0.2 0.4 0.6 0.8 1.0 1.2 OUTPUT CURRENT (mA) INPUT VOLTAGE (V) 3105 G15 3105 G16 3105fb For more information www.linear.com/LTC3105 5 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Application Related Parts
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