Datasheet LT8619, LT8619-5 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | 60V, 1.2A Synchronous Monolithic Buck Regulator with 6μA Quiescent Current |
| 页数 / 页 | 28 / 4 — ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply … |
| 修订版 | A |
| 文件格式/大小 | PDF / 1.2 Mb |
| 文件语言 | 英语 |
ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply over the full operating
该数据表的模型线
LT8619
文件文字版本
LT8619/LT8619-5
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VEN/UV = 2V unless otherwise noted (Notes 2, 3) PARAMETER CONDITIONS MIN TYP MAX UNITS Switch, Logic and Power Good
Top Switch On-Resistance ILOAD = 0.1A 0.45 Ω Bottom Switch On-Resistance ILOAD = 0.1A 0.22 Ω EN/UV Power-On Threshold EN/UV Rising l 0.94 1.0 1.1 V EN/UV Power-On Hysteresis 40 mV EN/UV Shutdown Threshold EN/UV Falling l 0.34 0.56 0.92 V EN/UV Pin Current VEN/UV = 2V –100 100 nA Overvoltage Threshold VFB Rising Wrt. Regulated VFB 3.75 % Positive Power Good Threshold VFB Rising Wrt. Regulated VFB l 5 7.5 10 % Negative Power Good Threshold VFB Falling Wrt. Regulated VFB l –5 –7.5 –10 % Positive Power Good Delay VFB = 0.8V ↑ 0.9V to PG Low 60 µs VFB = 0.9V ↓ 0.8V to PG High 35 µs Negative Power Good Delay VFB = 0.8V ↓ 0.7V to PG Low 60 µs VFB = 0.7V ↑ 0.8V to PG High 35 µs PG Leakage VPG = 3.3V, Power Good ±100 nA PG VOL IPG = 100µA l 0.01 0.3 V
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings characterization, and correlation with statistical process controls. The may cause permanent damage to the device. Exposure to any Absolute LT8619I is guaranteed over the full –40°C to 125°C operating junction Maximum Rating condition for extended periods may affect device temperature range. High junction temperatures degrade operating reliability and lifetime. lifetimes. Operating lifetime is derated at junction temperatures greater
Note 2:
All currents into device pins are positive; all currents out of device than 125°C. pins are negative. All Voltages are referenced to ground unless otherwise
Note 4:
This IC includes overtemperature protection that is intended to specified. protect the device during overload conditions. Junction temperature will
Note 3:
The LT8619 is tested under pulse load conditions such that exceed 150°C when overtemperature protection is active. Continuous T operation above the specified maximum operating junction temperature J ≈ TA. The LT8619E is guaranteed to meet performance specifications from 0°C to 125°C junction temperature. Specifications over the –40°C will reduce lifetime. to 125°C operating junction temperature range are assured by design, Rev A 4 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Revision History Typical Application Related Parts
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VEN/UV = 2V unless otherwise noted (Notes 2, 3) PARAMETER CONDITIONS MIN TYP MAX UNITS Switch, Logic and Power Good
Top Switch On-Resistance ILOAD = 0.1A 0.45 Ω Bottom Switch On-Resistance ILOAD = 0.1A 0.22 Ω EN/UV Power-On Threshold EN/UV Rising l 0.94 1.0 1.1 V EN/UV Power-On Hysteresis 40 mV EN/UV Shutdown Threshold EN/UV Falling l 0.34 0.56 0.92 V EN/UV Pin Current VEN/UV = 2V –100 100 nA Overvoltage Threshold VFB Rising Wrt. Regulated VFB 3.75 % Positive Power Good Threshold VFB Rising Wrt. Regulated VFB l 5 7.5 10 % Negative Power Good Threshold VFB Falling Wrt. Regulated VFB l –5 –7.5 –10 % Positive Power Good Delay VFB = 0.8V ↑ 0.9V to PG Low 60 µs VFB = 0.9V ↓ 0.8V to PG High 35 µs Negative Power Good Delay VFB = 0.8V ↓ 0.7V to PG Low 60 µs VFB = 0.7V ↑ 0.8V to PG High 35 µs PG Leakage VPG = 3.3V, Power Good ±100 nA PG VOL IPG = 100µA l 0.01 0.3 V
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings characterization, and correlation with statistical process controls. The may cause permanent damage to the device. Exposure to any Absolute LT8619I is guaranteed over the full –40°C to 125°C operating junction Maximum Rating condition for extended periods may affect device temperature range. High junction temperatures degrade operating reliability and lifetime. lifetimes. Operating lifetime is derated at junction temperatures greater
Note 2:
All currents into device pins are positive; all currents out of device than 125°C. pins are negative. All Voltages are referenced to ground unless otherwise
Note 4:
This IC includes overtemperature protection that is intended to specified. protect the device during overload conditions. Junction temperature will
Note 3:
The LT8619 is tested under pulse load conditions such that exceed 150°C when overtemperature protection is active. Continuous T operation above the specified maximum operating junction temperature J ≈ TA. The LT8619E is guaranteed to meet performance specifications from 0°C to 125°C junction temperature. Specifications over the –40°C will reduce lifetime. to 125°C operating junction temperature range are assured by design, Rev A 4 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Revision History Typical Application Related Parts