Datasheet LTC3612 (Analog Devices) - 9
| 制造商 | Analog Devices |
| 描述 | 3A, 4MHz Monolithic Synchronous Step-Down DC/DC Converter |
| 页数 / 页 | 30 / 9 — Typical perForMance characTerisTics VIN = 3.3V, RT/SYNC = SVIN, unless … |
| 文件格式/大小 | PDF / 416 Kb |
| 文件语言 | 英语 |
Typical perForMance characTerisTics VIN = 3.3V, RT/SYNC = SVIN, unless otherwise noted. Start-Up from Shutdown with
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LTC3612
Typical perForMance characTerisTics VIN = 3.3V, RT/SYNC = SVIN, unless otherwise noted. Start-Up from Shutdown with Dynamic Supply Current vs VOUT Short to GND, Prebiased Output Temperature without AVP Mode Forced Continuous Mode (Forced Continuous Mode)
100 PGOOD 5V/DIV VOUT 1V/DIV VOUT 10 FORCED CONTINUOUS MODE 500mV/DIV IL 2A/DIV PULSE-SKIPPING MODE IL Y CURRENT (mA) 1 2A/DIV Burst Mode OPERATION 50µs/DIV 3612 G30 VOUT = 2.5V 20µs/DIV 3612 G31 0.1 IOUT = 0A PREBIASED VOUT = 2.2V VMODE = 1.5V VOUT = 1.2V DYNAMIC SUPPL IOUT = 0A VMODE = 1.5V 0.01–60–50–30–10 10 30 50 70 90 110130150 TEMPERATURE (°C) 3612 G29
Output Voltage During Sinking Output Voltage During Sinking vs Input Voltage vs Input Voltage
1.90 V 0.95 OUT = 1.8V VOUT = 0.9V 1µH INDUCTOR 1µH INDUCTOR 1.88 0.94 1.86 0.93 (V) 1.84 0.92 –1.5A, 2MHz, 120°C (V) V OUT 1.82 V OUT 0.91 –1.5A, 1MHz, 120°C –1.5A, 2MHz, 25°C 1.80 0.90 –1.5A, 1MHz, 25°C 1.78 0.89 1.76 0.88 2.25 2.75 3.25 3.75 4.25 4.75 5.25 2.25 2.75 3.25 3.75 4.25 4.75 5.25 INPUT VOLTAGE (V) INPUT VOLTAGE (V) 3612 G32 3612 G33 3612fc For more information www.linear.com/LTC3612 9 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Operation Applications Information Package Description Typical Application Related Parts
Typical perForMance characTerisTics VIN = 3.3V, RT/SYNC = SVIN, unless otherwise noted. Start-Up from Shutdown with Dynamic Supply Current vs VOUT Short to GND, Prebiased Output Temperature without AVP Mode Forced Continuous Mode (Forced Continuous Mode)
100 PGOOD 5V/DIV VOUT 1V/DIV VOUT 10 FORCED CONTINUOUS MODE 500mV/DIV IL 2A/DIV PULSE-SKIPPING MODE IL Y CURRENT (mA) 1 2A/DIV Burst Mode OPERATION 50µs/DIV 3612 G30 VOUT = 2.5V 20µs/DIV 3612 G31 0.1 IOUT = 0A PREBIASED VOUT = 2.2V VMODE = 1.5V VOUT = 1.2V DYNAMIC SUPPL IOUT = 0A VMODE = 1.5V 0.01–60–50–30–10 10 30 50 70 90 110130150 TEMPERATURE (°C) 3612 G29
Output Voltage During Sinking Output Voltage During Sinking vs Input Voltage vs Input Voltage
1.90 V 0.95 OUT = 1.8V VOUT = 0.9V 1µH INDUCTOR 1µH INDUCTOR 1.88 0.94 1.86 0.93 (V) 1.84 0.92 –1.5A, 2MHz, 120°C (V) V OUT 1.82 V OUT 0.91 –1.5A, 1MHz, 120°C –1.5A, 2MHz, 25°C 1.80 0.90 –1.5A, 1MHz, 25°C 1.78 0.89 1.76 0.88 2.25 2.75 3.25 3.75 4.25 4.75 5.25 2.25 2.75 3.25 3.75 4.25 4.75 5.25 INPUT VOLTAGE (V) INPUT VOLTAGE (V) 3612 G32 3612 G33 3612fc For more information www.linear.com/LTC3612 9 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Operation Applications Information Package Description Typical Application Related Parts