Datasheet LTC3414 (Analog Devices) - 3
| 制造商 | Analog Devices |
| 描述 | 4A, 4MHz, Monolithic Synchronous Step-Down Regulator |
| 页数 / 页 | 16 / 3 — TYPICAL PERFOR A CE CHARACTERISTICS. Switch On-Resistance vs. … |
| 文件格式/大小 | PDF / 280 Kb |
| 文件语言 | 英语 |
TYPICAL PERFOR A CE CHARACTERISTICS. Switch On-Resistance vs. Temperature, V. REF vs Temperature, VIN = 3.3V. Input Voltage
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LTC3414
W U TYPICAL PERFOR A CE CHARACTERISTICS Switch On-Resistance vs Switch On-Resistance vs V Temperature, V REF vs Temperature, VIN = 3.3V Input Voltage IN = 3.3V
0.800 90 120 TA = 25°C 80 100 0.799 PFET 70 ) Ω Ω 60 80 0.798 NFET PFET 50 (V) 60 NFET REFV 40 0.797 30 40 ON-RESISTANCE (m ON-RESISTANCE (m 20 0.796 20 10 0.795 0 0 –40 –20 0 20 40 60 80 100 120 140 2.25 2.75 3.25 3.75 4.25 4.75 5.25 5.75 –40–25 –10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) INPUT VOLTAGE (V) TEMPERATURE (°C) 3414 G01 3414 G02 3414 G03
Switch Leakage vs Input Voltage Frequency vs R Frequency vs Input Voltage OSC
20 7000 1040 TA = 25°C VIN = 3.3V ROSC = 294k 18 T T 6000 A = 25°C 1020 A = 25°C 16 14 5000 1000 PFET 12 4000 980 10 960 8 3000 6 FREQUENCY (kHz) FREQUENCY (kHz) NFET 2000 940 4 SWITCH LEAKAGE CURRENT (nA) 1000 920 2 0 0 900 2.25 2.75 3.25 3.75 4.25 4.75 5.25 25 125 225 325 425 525 625 725 825 925 2.25 2.75 3.25 3.75 4.25 4.75 5.25 INPUT VOLTAGE (V) R INPUT VOLTAGE (V) OSC (k) 3414 G04 3414 G05 3414 G06
DC Supply Current vs Input Minimum Peak Inductor Current Frequency vs Temperature Voltage vs Burst Clamp Voltage
1090 350 5.0 V T V IN = 3.3V A = 25°C IN = 3.3V 1070 4.5 R T OSC = 294k 300 A = 25°C 1050 ACTIVE 4.0 μA) 250 3.5 1030 3.0 1010 200 2.5 990 150 2.0 FREQUENCY (kHz) 970 100 1.5 950 QUIESCENT CURRENT ( SLEEP 1.0 50 930 0.5 MINIMUM PEAK INDUCTOR CURRENT (A) 910 0 0 –40 –20 0 20 40 60 80 100 120 2.25 2.75 3.25 3.75 4.25 4.75 5.25 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 TEMPERATURE (°C) INPUT VOLTAGE (V) BURST CLAMP VOLTAGE (V) 3414 G07 3414 G08 3414 G09 3414fb 3
W U TYPICAL PERFOR A CE CHARACTERISTICS Switch On-Resistance vs Switch On-Resistance vs V Temperature, V REF vs Temperature, VIN = 3.3V Input Voltage IN = 3.3V
0.800 90 120 TA = 25°C 80 100 0.799 PFET 70 ) Ω Ω 60 80 0.798 NFET PFET 50 (V) 60 NFET REFV 40 0.797 30 40 ON-RESISTANCE (m ON-RESISTANCE (m 20 0.796 20 10 0.795 0 0 –40 –20 0 20 40 60 80 100 120 140 2.25 2.75 3.25 3.75 4.25 4.75 5.25 5.75 –40–25 –10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) INPUT VOLTAGE (V) TEMPERATURE (°C) 3414 G01 3414 G02 3414 G03
Switch Leakage vs Input Voltage Frequency vs R Frequency vs Input Voltage OSC
20 7000 1040 TA = 25°C VIN = 3.3V ROSC = 294k 18 T T 6000 A = 25°C 1020 A = 25°C 16 14 5000 1000 PFET 12 4000 980 10 960 8 3000 6 FREQUENCY (kHz) FREQUENCY (kHz) NFET 2000 940 4 SWITCH LEAKAGE CURRENT (nA) 1000 920 2 0 0 900 2.25 2.75 3.25 3.75 4.25 4.75 5.25 25 125 225 325 425 525 625 725 825 925 2.25 2.75 3.25 3.75 4.25 4.75 5.25 INPUT VOLTAGE (V) R INPUT VOLTAGE (V) OSC (k) 3414 G04 3414 G05 3414 G06
DC Supply Current vs Input Minimum Peak Inductor Current Frequency vs Temperature Voltage vs Burst Clamp Voltage
1090 350 5.0 V T V IN = 3.3V A = 25°C IN = 3.3V 1070 4.5 R T OSC = 294k 300 A = 25°C 1050 ACTIVE 4.0 μA) 250 3.5 1030 3.0 1010 200 2.5 990 150 2.0 FREQUENCY (kHz) 970 100 1.5 950 QUIESCENT CURRENT ( SLEEP 1.0 50 930 0.5 MINIMUM PEAK INDUCTOR CURRENT (A) 910 0 0 –40 –20 0 20 40 60 80 100 120 2.25 2.75 3.25 3.75 4.25 4.75 5.25 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 TEMPERATURE (°C) INPUT VOLTAGE (V) BURST CLAMP VOLTAGE (V) 3414 G07 3414 G08 3414 G09 3414fb 3