Datasheet LTC3416 (Analog Devices) - 3
| 制造商 | Analog Devices |
| 描述 | 4A, 4MHz, Monolithic Synchronous Step-Down Regulator with Tracking |
| 页数 / 页 | 16 / 3 — ELECTRICAL CHARACTERISTICS. Note 1:. Note 5:. Note 6:. Note 2:. Note 7:. … |
| 文件格式/大小 | PDF / 219 Kb |
| 文件语言 | 英语 |
ELECTRICAL CHARACTERISTICS. Note 1:. Note 5:. Note 6:. Note 2:. Note 7:. Note 3:. Note 4:. TYPICAL PERFOR A CE CHARACTERISTICS
该数据表的模型线
文件文字版本
LTC3416
ELECTRICAL CHARACTERISTICS Note 1:
Absolute Maximum Ratings are those values beyond which the life
Note 5:
Dynamic supply current is higher due to the internal gate charge of a device may be impaired. The voltage should never exceed 6.0V for any being delivered at the switching frequency. pin.
Note 6:
TJ is calculated from the ambient temperature TA and power
Note 2:
The LTC3416E is guaranteed to meet performance specifications dissipation PD as follows: from 0°C to 85°C. Specifications over the –40°C to 85°C operating LTC3416E: TJ = TA + (PD)(38°C/W) temperature range are assured by design, characterization and correlation
Note 7:
This IC includes overtemperature protection that is intended to with statistical process controls. protect the device during momentary overload conditions. Junction
Note 3:
The LTC3416 is tested in a feedback loop that adjusts VFB to temperature will exceed 125°C when overtemperature protection is active. achieve a specified error amplifier output voltage (ITH). Continuous operation above the specified maximum operating junction
Note 4:
This parameter is guaranteed by design and characterization. temperature may impair device reliability.
W U TYPICAL PERFOR A CE CHARACTERISTICS Switch On-Resistance Switch On-Resistance V vs Input Voltage REF vs Temperature, VIN = 3.3V vs Temperature, VIN = 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) 3416 G01 3416 G02 3416 G03
Switch Leakage vs Input Voltage Frequency vs ROSC Frequency vs Input Voltage
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 FREQUENCY (kHz) 6 FREQUENCY (kHz) 940 NFET 2000 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) 3416 G04 3416 G05 3416 G06 3416fa 3
ELECTRICAL CHARACTERISTICS Note 1:
Absolute Maximum Ratings are those values beyond which the life
Note 5:
Dynamic supply current is higher due to the internal gate charge of a device may be impaired. The voltage should never exceed 6.0V for any being delivered at the switching frequency. pin.
Note 6:
TJ is calculated from the ambient temperature TA and power
Note 2:
The LTC3416E is guaranteed to meet performance specifications dissipation PD as follows: from 0°C to 85°C. Specifications over the –40°C to 85°C operating LTC3416E: TJ = TA + (PD)(38°C/W) temperature range are assured by design, characterization and correlation
Note 7:
This IC includes overtemperature protection that is intended to with statistical process controls. protect the device during momentary overload conditions. Junction
Note 3:
The LTC3416 is tested in a feedback loop that adjusts VFB to temperature will exceed 125°C when overtemperature protection is active. achieve a specified error amplifier output voltage (ITH). Continuous operation above the specified maximum operating junction
Note 4:
This parameter is guaranteed by design and characterization. temperature may impair device reliability.
W U TYPICAL PERFOR A CE CHARACTERISTICS Switch On-Resistance Switch On-Resistance V vs Input Voltage REF vs Temperature, VIN = 3.3V vs Temperature, VIN = 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) 3416 G01 3416 G02 3416 G03
Switch Leakage vs Input Voltage Frequency vs ROSC Frequency vs Input Voltage
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 FREQUENCY (kHz) 6 FREQUENCY (kHz) 940 NFET 2000 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) 3416 G04 3416 G05 3416 G06 3416fa 3