Datasheet LT8609, LT8609A, LT8609B (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | 42V, 3A Synchronous Step-Down Regulator with 2.5µA Quiescent Current |
| 页数 / 页 | 26 / 4 — The. denotes the specifications which apply over the full operating |
| 修订版 | H |
| 文件格式/大小 | PDF / 327 Kb |
| 文件语言 | 英语 |
The. denotes the specifications which apply over the full operating
文件文字版本
LT8609/LT8609A/LT8609B ELECTRICAL CHARACTERISTICS
The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. PARAMETER CONDITIONS MIN TYP MAX UNITS
PG Lower Threshold Offset from VFB LT8609/LT8609A: VFB Falling l 5.0 8.5 13.0 % LT8609B: VFB Falling l 4.0 8.5 14.0 % PG Hysteresis 0.5 % PG Leakage VPG = 42V l ±200 nA PG Pull-Down Resistance VPG = 0.1V 550 1200 Ω Sync Low Input Voltage LT8609/LT8609A l 0.4 0.9 V Sync High Input Voltage LT8609/LT8609A: l 2.7 3.2 V INTVCC = 3.5V TR/SS Source Current l 1 2 3 µA TR/SS Pull-Down Resistance Fault Condition, TR/SS = 0.1V 300 900 Ω Spread Spectrum Modulation Frequency LT8609/LT8609A: VSYNC = 3.3V 1 3 6 kHz
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings guaranteed over the full –40°C to 125°C operating junction temperature may cause permanent damage to the device. Exposure to any Absolute range. The LT8609H/LT8609AH/LT8609AJ is guaranteed over the full Maximum Rating condition for extended periods may affect device –40°C to 150°C operating junction temperature range. High junction reliability and lifetime. Absolute Maximum Ratings are those values beyond temperatures degrade operating lifetimes. Operating lifetime is derated at which the life of a device may be impaired. junction temperatures greater than 125°C.
Note 2:
The LT8609E/LT8609AE/LT8609BE is guaranteed to meet
Note 3:
This IC includes overtemperature protection that is intended to performance specifications from 0°C to 125°C junction temperature. protect the device during overload conditions. Junction temperature will Specifications over the –40°C to 125°C operating junction temperature exceed 150°C when overtemperature protection is active. Continuous range are assured by design, characterization, and correlation with operation above the specified maximum operating junction temperature statistical process controls. The LT8609I/LT8609AI/LT8609BI is will reduce lifetime. Rev. H 4 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. PARAMETER CONDITIONS MIN TYP MAX UNITS
PG Lower Threshold Offset from VFB LT8609/LT8609A: VFB Falling l 5.0 8.5 13.0 % LT8609B: VFB Falling l 4.0 8.5 14.0 % PG Hysteresis 0.5 % PG Leakage VPG = 42V l ±200 nA PG Pull-Down Resistance VPG = 0.1V 550 1200 Ω Sync Low Input Voltage LT8609/LT8609A l 0.4 0.9 V Sync High Input Voltage LT8609/LT8609A: l 2.7 3.2 V INTVCC = 3.5V TR/SS Source Current l 1 2 3 µA TR/SS Pull-Down Resistance Fault Condition, TR/SS = 0.1V 300 900 Ω Spread Spectrum Modulation Frequency LT8609/LT8609A: VSYNC = 3.3V 1 3 6 kHz
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings guaranteed over the full –40°C to 125°C operating junction temperature may cause permanent damage to the device. Exposure to any Absolute range. The LT8609H/LT8609AH/LT8609AJ is guaranteed over the full Maximum Rating condition for extended periods may affect device –40°C to 150°C operating junction temperature range. High junction reliability and lifetime. Absolute Maximum Ratings are those values beyond temperatures degrade operating lifetimes. Operating lifetime is derated at which the life of a device may be impaired. junction temperatures greater than 125°C.
Note 2:
The LT8609E/LT8609AE/LT8609BE is guaranteed to meet
Note 3:
This IC includes overtemperature protection that is intended to performance specifications from 0°C to 125°C junction temperature. protect the device during overload conditions. Junction temperature will Specifications over the –40°C to 125°C operating junction temperature exceed 150°C when overtemperature protection is active. Continuous range are assured by design, characterization, and correlation with operation above the specified maximum operating junction temperature statistical process controls. The LT8609I/LT8609AI/LT8609BI is will reduce lifetime. Rev. H 4 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts