Datasheet LTC3636, LTC3636-1 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | Dual Channel 6A, 20V Monolithic Synchronous Step-Down Regulator |
| 页数 / 页 | 28 / 4 — ELECTRICAL CHARACTERISTICS The. denotes the specifications which apply … |
| 文件格式/大小 | PDF / 944 Kb |
| 文件语言 | 英语 |
ELECTRICAL CHARACTERISTICS The. denotes the specifications which apply over the specified operating
文件文字版本
LTC3636/LTC3636-1
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TJ = 25°C (Note 2). VIN1 = VIN2 = 12V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
RPGOOD PGOOD Pul -Down Resistance 10mA Load 25 Ω tPGOOD Power Good Filter Time 20 40 µs tSS Internal Soft-Start Time 10% to 90% Rise Time 1000 1500 µs VFB During Tracking TRACKSS = 0.3V 0.28 0.3 0.315 V ITRACKSS TRACKSS Pul -Up Current 1.4 µA VMODE/SYNC MODE/SYNC Threshold Voltage MODE VIH 1 V MODE VIL 0.4 V SYNC Threshold Voltage SYNC VIH 0.95 V IMODE MODE/SYNC Input Current MODE = 0V 1.5 µA MODE = INTVCC –1.5 µA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings power dissipation (PD, in Watts) according to the formula: may cause permanent damage to the device. Exposure to any Absolute TJ = TA + (PD • θJA), where θJA (in °C/W) is the package thermal Maximum Rating condition for extended periods may affect device impedance. reliability and lifetime.
Note 3:
This IC includes overtemperature protection that is intended
Note 2:
The LTC3636 is tested under pulsed load conditions such to protect the device during momentary overload conditions. Junction that TJ ≈ TA. The LTC3636E is guaranteed to meet specifications from temperature will exceed 125°C when overtemperature protection is active. 0°C to 85°C junction temperature. Specifications over the –40°C to Continuous operation above the specified maximum operating junction 125°C operating junction temperature range are assured by design, temperature may impair device reliability. characterization and correlation with statistical process controls. The
Note 4:
Output voltages outside the specified range are not optimized for LTC3636I is guaranteed over the –40°C to 125°C operating junction controlled on-time operation. Refer to the Applications Information section temperature range. Note that the maximum ambient temperature for further discussions related to the output voltage range. consistent with these specifications is determined by specific operating conditions in conjunction with board layout, the rated package thermal
Note 5:
Dynamic supply current is higher due to the internal gate charge impedance and other environmental factors. The junction temperature being delivered at the switching frequency. (T
Note 6:
Guaranteed by design. J, in °C) is calculated from the ambient temperature (TA, in °C) and 3636fb 4 For more information www.linear.com/LTC3636 Document Outline Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Operation Applications Information Package Description Typical Application Related Parts
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TJ = 25°C (Note 2). VIN1 = VIN2 = 12V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
RPGOOD PGOOD Pul -Down Resistance 10mA Load 25 Ω tPGOOD Power Good Filter Time 20 40 µs tSS Internal Soft-Start Time 10% to 90% Rise Time 1000 1500 µs VFB During Tracking TRACKSS = 0.3V 0.28 0.3 0.315 V ITRACKSS TRACKSS Pul -Up Current 1.4 µA VMODE/SYNC MODE/SYNC Threshold Voltage MODE VIH 1 V MODE VIL 0.4 V SYNC Threshold Voltage SYNC VIH 0.95 V IMODE MODE/SYNC Input Current MODE = 0V 1.5 µA MODE = INTVCC –1.5 µA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings power dissipation (PD, in Watts) according to the formula: may cause permanent damage to the device. Exposure to any Absolute TJ = TA + (PD • θJA), where θJA (in °C/W) is the package thermal Maximum Rating condition for extended periods may affect device impedance. reliability and lifetime.
Note 3:
This IC includes overtemperature protection that is intended
Note 2:
The LTC3636 is tested under pulsed load conditions such to protect the device during momentary overload conditions. Junction that TJ ≈ TA. The LTC3636E is guaranteed to meet specifications from temperature will exceed 125°C when overtemperature protection is active. 0°C to 85°C junction temperature. Specifications over the –40°C to Continuous operation above the specified maximum operating junction 125°C operating junction temperature range are assured by design, temperature may impair device reliability. characterization and correlation with statistical process controls. The
Note 4:
Output voltages outside the specified range are not optimized for LTC3636I is guaranteed over the –40°C to 125°C operating junction controlled on-time operation. Refer to the Applications Information section temperature range. Note that the maximum ambient temperature for further discussions related to the output voltage range. consistent with these specifications is determined by specific operating conditions in conjunction with board layout, the rated package thermal
Note 5:
Dynamic supply current is higher due to the internal gate charge impedance and other environmental factors. The junction temperature being delivered at the switching frequency. (T
Note 6:
Guaranteed by design. J, in °C) is calculated from the ambient temperature (TA, in °C) and 3636fb 4 For more information www.linear.com/LTC3636 Document Outline Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Operation Applications Information Package Description Typical Application Related Parts