Datasheet LTC3623 (Analog Devices) - 6
| 制造商 | Analog Devices |
| 描述 | 15V, ±5A Rail-to-Rail Synchronous Buck Regulator |
| 页数 / 页 | 30 / 6 — Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. … |
| 文件格式/大小 | PDF / 1.5 Mb |
| 文件语言 | 英语 |
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Transient Response CCM. RDS(ON) vs VIN
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LTC3623
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Transient Response CCM RDS(ON) vs VIN RDS(ON) vs Temperature Operation, External Compensation
100 150 80 120 VOUT(AC) MTOP 200mV/DIV 60 90 MTOP (mΩ) (mΩ) IL 40 R DS(ON) 60 R DS(ON) 5A/DIV MBOT MBOT 20 30 20µs/DIV 3623 G12 VIN = 12V fSW = 1MHz 0 0 VOUT = 3.3V RITH = 20kΩ, CITH = 470pF 0 3 6 9 12 15 18 –50 –25 0 25 50 75 100 125 150 IOUT = 0A TO 4A MODE = INTVCC V L = 1.2µH C IN (V) TEMPERATURE (°C) OUT = 47µF 3623 G10 3623 G11
Transient Response CCM Transient Response DCM Transient Response DCM Operation, Internal Compensation Operation, External Compensation Operation, Internal Compensation
VOUT(AC) VOUT(AC) VOUT(AC) 200mV/DIV 200mV/DIV 200mV/DIV IL IL IL 5A/DIV 5A/DIV 5A/DIV 20µs/DIV 3623 G13 20µs/DIV 3623 G14 20µs/DIV 3623 G15 VIN = 12V fSW = 1MHz VIN = 12V fSW = 1MHz VIN = 12V fSW = 1MHz VOUT = 3.3V ITH = INTVCC VOUT = 3.3V RITH = 20kΩ, CITH = 470pF VOUT = 3.3V ITH = INTVCC IOUT = 0A TO 4A MODE = INTVCC IOUT = 0.5A TO 4A MODE = 0V IOUT = 0.5A TO 4A MODE = 0V L = 1.2µH COUT = 47µF L = 1.2µH COUT = 47µF L = 1.2µH COUT = 47µF
Discontinuous Conduction Mode Continuous Conduction Mode Output Tracking (DCM) Operation (CCM) Operation
ISET VOLTAGE VOUT ISET V V 2V/DIV SW SW VOLTAGE 10V/DIV 10V/DIV VOUT IL IL IL 2A/DIV 2A/DIV 2A/DIV 1ms/DIV 3623 G16 3623 G17 3623 G18 VIN = 16V 500ns/DIV VIN = 16V 500ns/DIV VOUT=2.5V VOUT=2.5V MODE=0V MODE=INTVCC L=1.0µH L=1.0µH 3623fa 6 For more information www.linear.com/LTC3623
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Transient Response CCM RDS(ON) vs VIN RDS(ON) vs Temperature Operation, External Compensation
100 150 80 120 VOUT(AC) MTOP 200mV/DIV 60 90 MTOP (mΩ) (mΩ) IL 40 R DS(ON) 60 R DS(ON) 5A/DIV MBOT MBOT 20 30 20µs/DIV 3623 G12 VIN = 12V fSW = 1MHz 0 0 VOUT = 3.3V RITH = 20kΩ, CITH = 470pF 0 3 6 9 12 15 18 –50 –25 0 25 50 75 100 125 150 IOUT = 0A TO 4A MODE = INTVCC V L = 1.2µH C IN (V) TEMPERATURE (°C) OUT = 47µF 3623 G10 3623 G11
Transient Response CCM Transient Response DCM Transient Response DCM Operation, Internal Compensation Operation, External Compensation Operation, Internal Compensation
VOUT(AC) VOUT(AC) VOUT(AC) 200mV/DIV 200mV/DIV 200mV/DIV IL IL IL 5A/DIV 5A/DIV 5A/DIV 20µs/DIV 3623 G13 20µs/DIV 3623 G14 20µs/DIV 3623 G15 VIN = 12V fSW = 1MHz VIN = 12V fSW = 1MHz VIN = 12V fSW = 1MHz VOUT = 3.3V ITH = INTVCC VOUT = 3.3V RITH = 20kΩ, CITH = 470pF VOUT = 3.3V ITH = INTVCC IOUT = 0A TO 4A MODE = INTVCC IOUT = 0.5A TO 4A MODE = 0V IOUT = 0.5A TO 4A MODE = 0V L = 1.2µH COUT = 47µF L = 1.2µH COUT = 47µF L = 1.2µH COUT = 47µF
Discontinuous Conduction Mode Continuous Conduction Mode Output Tracking (DCM) Operation (CCM) Operation
ISET VOLTAGE VOUT ISET V V 2V/DIV SW SW VOLTAGE 10V/DIV 10V/DIV VOUT IL IL IL 2A/DIV 2A/DIV 2A/DIV 1ms/DIV 3623 G16 3623 G17 3623 G18 VIN = 16V 500ns/DIV VIN = 16V 500ns/DIV VOUT=2.5V VOUT=2.5V MODE=0V MODE=INTVCC L=1.0µH L=1.0µH 3623fa 6 For more information www.linear.com/LTC3623