Datasheet LTC3614 (Analog Devices) - 6
| 制造商 | Analog Devices |
| 描述 | 4A, 4MHz Monolithic Synchronous Step-Down DC/DC Converter |
| 页数 / 页 | 30 / 6 — Typical perForMance characTerisTics VIN = 3.3V, RT/SYNC = SVIN unless … |
| 文件格式/大小 | PDF / 808 Kb |
| 文件语言 | 英语 |
Typical perForMance characTerisTics VIN = 3.3V, RT/SYNC = SVIN unless otherwise noted. Load Step Transient in
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LTC3614
Typical perForMance characTerisTics VIN = 3.3V, RT/SYNC = SVIN unless otherwise noted. Load Step Transient in Load Step Transient in Forced Continuous Mode Operation Pulse-Skipping Mode Burst Mode Operation
VOUT 20mV/DIV V V OUT OUT 100mV/DIV 100mV/DIV IL 500mA/DIV ILOAD I 2A/DIV LOAD 2A/DIV 1µs/DIV 3614 G10 VOUT = 1.8V 100µs/DIV 3614 G11 100µs/DIV 3614 G12 I V V OUT = 100mA OUT = 1.8V OUT = 1.8V V I I MODE = 1.5V LOAD = 100mA TO 4A, VMODE = 3.3V LOAD = 100mA TO 4A, VMODE = 0V COMPENSATION FIGURE 1 COMPENSATION FIGURE 1
Load Step Transient in Forced Load Step Transient in Forced Load Step Transient in Forced Continuous Mode Sourcing and Continuous Mode without AVP Mode Continuous Mode with AVP Mode Sinking Current
VOUT V V OUT OUT 100mV/DIV 100mV/DIV 200mV/DIV ILOAD ILOAD ILOAD 2A/DIV 2A/DIV 2A/DIV 100µs/DIV 3614 G13 100µs/DIV 3614 G14 100µs/DIV 3614 G15 VOUT = 1.8V VOUT = 1.8V VOUT = 1.8V ILOAD = 100mA TO 4A, VMODE = 1.5V ILOAD = 100mA TO 4A, VMODE = 1.5V ILOAD = –3A TO 3A, VMODE = 1.5V COMPENSATION FIGURE 1 COMPENSATION FIGURE 1
Tracking Up/Down in Internal Start-Up in Forced Forced Continuous Mode, Sinking Current Continuous Mode Non DDR Mode
RUN VOUT 10V/DIV 100mV/DIV VOUT PGOOD 1V/DIV 10V/DIV SW VOUT VTRACK/SS 2V/DIV 500mV/DIV 500mV/DIV IL IL PGOOD 2A/DIV 2A/DIV 2V/DIV 1µs/DIV 3614 G16 500µs/DIV 3614 G17 2ms/DIV 3614 G18 VOUT = 1.8V VOUT = 1.8V VOUT = 0V TO 1.8V IOUT = –3A, VMODE = 1.5V IOUT = 0A, VMODE = 1.5V IOUT = 3A, VTRACK/SS = 0V TO 0.7V VMODE = 1.5V, VSRLIM/DDR = 0V 3614fc 6 For more information www.linear.com/LTC3614 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Block Diagram Operation Applications Information Package Description Typical Application Related Parts
Typical perForMance characTerisTics VIN = 3.3V, RT/SYNC = SVIN unless otherwise noted. Load Step Transient in Load Step Transient in Forced Continuous Mode Operation Pulse-Skipping Mode Burst Mode Operation
VOUT 20mV/DIV V V OUT OUT 100mV/DIV 100mV/DIV IL 500mA/DIV ILOAD I 2A/DIV LOAD 2A/DIV 1µs/DIV 3614 G10 VOUT = 1.8V 100µs/DIV 3614 G11 100µs/DIV 3614 G12 I V V OUT = 100mA OUT = 1.8V OUT = 1.8V V I I MODE = 1.5V LOAD = 100mA TO 4A, VMODE = 3.3V LOAD = 100mA TO 4A, VMODE = 0V COMPENSATION FIGURE 1 COMPENSATION FIGURE 1
Load Step Transient in Forced Load Step Transient in Forced Load Step Transient in Forced Continuous Mode Sourcing and Continuous Mode without AVP Mode Continuous Mode with AVP Mode Sinking Current
VOUT V V OUT OUT 100mV/DIV 100mV/DIV 200mV/DIV ILOAD ILOAD ILOAD 2A/DIV 2A/DIV 2A/DIV 100µs/DIV 3614 G13 100µs/DIV 3614 G14 100µs/DIV 3614 G15 VOUT = 1.8V VOUT = 1.8V VOUT = 1.8V ILOAD = 100mA TO 4A, VMODE = 1.5V ILOAD = 100mA TO 4A, VMODE = 1.5V ILOAD = –3A TO 3A, VMODE = 1.5V COMPENSATION FIGURE 1 COMPENSATION FIGURE 1
Tracking Up/Down in Internal Start-Up in Forced Forced Continuous Mode, Sinking Current Continuous Mode Non DDR Mode
RUN VOUT 10V/DIV 100mV/DIV VOUT PGOOD 1V/DIV 10V/DIV SW VOUT VTRACK/SS 2V/DIV 500mV/DIV 500mV/DIV IL IL PGOOD 2A/DIV 2A/DIV 2V/DIV 1µs/DIV 3614 G16 500µs/DIV 3614 G17 2ms/DIV 3614 G18 VOUT = 1.8V VOUT = 1.8V VOUT = 0V TO 1.8V IOUT = –3A, VMODE = 1.5V IOUT = 0A, VMODE = 1.5V IOUT = 3A, VTRACK/SS = 0V TO 0.7V VMODE = 1.5V, VSRLIM/DDR = 0V 3614fc 6 For more information www.linear.com/LTC3614 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Block Diagram Operation Applications Information Package Description Typical Application Related Parts