Datasheet LTC3623 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | 15V, ±5A Rail-to-Rail Synchronous Buck Regulator |
| 页数 / 页 | 30 / 4 — elecTrical characTerisTics. The. denotes the specifications which apply … |
| 文件格式/大小 | PDF / 1.5 Mb |
| 文件语言 | 英语 |
elecTrical characTerisTics. The. denotes the specifications which apply over the specified operating
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LTC3623
elecTrical characTerisTics The
l
denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TA = 25°C. (Note 4) VIN = 12V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VOUT Resistance to GND 600 kΩ VINOV VIN Overvoltage Lockout VIN Rising 15.5 16.8 V VIN 0V Hystersis 1.4 V IIMON IMON Current Limit Threshold 2.15 2.35 2.55 V IMON Gain ILOAD = 5A, Not Switching 20 21 22 µA/A
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings junction temperature range. Note that the maximum ambient temperature may cause permanent damage to the device. Exposure to any Absolute consistent with these specifications is determined by specific operating Maximum Rating condition for extended periods may affect device conditions in conjunction with board layout, the rated package thermal reliability and lifetime. Absolute Maximum Ratings are those values impedance and other environmental factors. The junction temperature beyond which the life of a device may be impaired. (TJ, in °C) is calculated from the ambient temperature (TA, in °C) and
Note 2:
Dynamic supply current is higher due to the internal gate charge power dissipation (PD, in watts) according to the formula: being delivered at the switching frequency. TJ = TA + (PD • θJA), where θJA (in °C/W) is the package thermal
Note 3:
The LTC3623 is tested in a feedback loop that adjusts V impedance. OUT to achieve a specified error amplifier output voltage (ITH).
Note 5:
This IC includes overtemperature protection that is intended
Note 4:
The LTC3623 is tested under pulsed load conditions such that protect the device during momentary overload conditions. Junction T temperature will exceed 125°C when overtemperature protection is active. J ≈ TA. The LTC3623E is guaranteed to meet performance specifications from 0°C to 85°C junction temperature. Specifications over the Continuous operation above the specified maximum operating junction –40°C to 125°C operating junction temperature range are assured by temperature may impair device reliability. design, characterization and correlation with statistical process controls.
Note 6:
Guaranteed by design. The LTC3623I is guaranteed over the full –40°C to 125°C operating 3623fa 4 For more information www.linear.com/LTC3623
elecTrical characTerisTics The
l
denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TA = 25°C. (Note 4) VIN = 12V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VOUT Resistance to GND 600 kΩ VINOV VIN Overvoltage Lockout VIN Rising 15.5 16.8 V VIN 0V Hystersis 1.4 V IIMON IMON Current Limit Threshold 2.15 2.35 2.55 V IMON Gain ILOAD = 5A, Not Switching 20 21 22 µA/A
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings junction temperature range. Note that the maximum ambient temperature may cause permanent damage to the device. Exposure to any Absolute consistent with these specifications is determined by specific operating Maximum Rating condition for extended periods may affect device conditions in conjunction with board layout, the rated package thermal reliability and lifetime. Absolute Maximum Ratings are those values impedance and other environmental factors. The junction temperature beyond which the life of a device may be impaired. (TJ, in °C) is calculated from the ambient temperature (TA, in °C) and
Note 2:
Dynamic supply current is higher due to the internal gate charge power dissipation (PD, in watts) according to the formula: being delivered at the switching frequency. TJ = TA + (PD • θJA), where θJA (in °C/W) is the package thermal
Note 3:
The LTC3623 is tested in a feedback loop that adjusts V impedance. OUT to achieve a specified error amplifier output voltage (ITH).
Note 5:
This IC includes overtemperature protection that is intended
Note 4:
The LTC3623 is tested under pulsed load conditions such that protect the device during momentary overload conditions. Junction T temperature will exceed 125°C when overtemperature protection is active. J ≈ TA. The LTC3623E is guaranteed to meet performance specifications from 0°C to 85°C junction temperature. Specifications over the Continuous operation above the specified maximum operating junction –40°C to 125°C operating junction temperature range are assured by temperature may impair device reliability. design, characterization and correlation with statistical process controls.
Note 6:
Guaranteed by design. The LTC3623I is guaranteed over the full –40°C to 125°C operating 3623fa 4 For more information www.linear.com/LTC3623