Datasheet LT8652S (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | Dual Channel 8.5A, 18V, Synchronous Step-Down Silent Switcher with 16µA Quiescent Current |
| 页数 / 页 | 34 / 4 — ELECTRICAL CHARACTERISTICS Note 1:. Note 2:. Note 3:. TYPICAL PERFORMANCE … |
| 文件格式/大小 | PDF / 2.9 Mb |
| 文件语言 | 英语 |
ELECTRICAL CHARACTERISTICS Note 1:. Note 2:. Note 3:. TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted
文件文字版本
link to page 2 LT8652S
ELECTRICAL CHARACTERISTICS Note 1:
Stresses beyond those listed under Absolute Maximum Ratings than 125°C. The junction temperature (TJ, in °C) is calculated from the may cause permanent damage to the device. Exposure to any Absolute ambient temperature (TA, in °C) and power dissipation (PD, in watts) Maximum Rating condition for extended periods may affect device according to the formula: reliability and lifetime. TJ = TA + (PD • θJA), where θJA (in °C/W) is the package thermal
Note 2:
The LT8652SE is guaranteed to meet performance specifications impedance. from 0°C to 125°C junction temperature. Specifications over the –40°C
Note 3:
This IC includes overtemperature protection that is intended to to 125°C operating junction temperature range are assured by design, protect the device during overload conditions. Junction temperature will characterization and correlation with statistical process controls. The exceed 150°C when overtemperature protection is active. Continuous LT8652SI is guaranteed over the full –40°C to 125°C operating junction operation above the specified maximum operating junction temperature temperature range. High junction temperatures degrade operating will reduce lifetime. lifetimes. Operating lifetime is derated at junction temperatures greater
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. 12VIN to 1.0VOUT Efficiency 5.0VIN to 1.0VOUT Efficiency
100 6.0 100 6.0 L = XEL4030 1MHz, L = 0.47µH L = XEL4030 1MHz, L = 0.47µH 95 5.5 BIAS = 5V 1.5MHz, L = 0.3µH 95 5.5 FCM 1.5MHz, L = 0.3µH 90 FCM 2MHz, L = 0.2µH 5.0 90 2MHz, L = 0.2µH 5.0 85 4.5 85 4.5 POWER LOSS (W) POWER LOSS (W) 80 EFFICIENCY 4.0 80 EFFICIENCY 4.0 75 3.5 75 3.5 70 3.0 70 3.0 65 2.5 65 2.5 EFFICIENCY (%) 60 2.0 EFFICIENCY (%) 60 2.0 55 1.5 POWER LOSS 55 1.5 POWER LOSS 50 1.0 50 1.0 45 0.5 45 0.5 40 0 40 0 0 2 4 6 8 10 12 0 2 4 6 8 10 12 LOAD CURRENT (A) LOAD CURRENT (A) 8652S G01 8652S G02
1.0VOUT Efficiency—Burst Mode Operation 12.0VIN to 1.2VOUT Efficiency
100 100 6.0 L = XEL4030–301ME, 0.3µH L = XEL4030 1MHz, L = 0.47µH 95 5.5 90 BIAS = 5V BIAS = 5V 1.5MHz, L = 0.3µH 90 FCM 2MHz, L = 0.2µH 5.0 80 85 4.5 70 POWER LOSS (W) 80 EFFICIENCY 4.0 60 75 3.5 50 70 3.0 65 2.5 40 EFFICIENCY (%) EFFICIENCY (%) 60 2.0 30 55 1.5 POWER LOSS 20 50 1.0 5V 10 IN 45 0.5 12VIN 0 40 0 1 10 100 1k 10k 0 2 4 6 8 10 12 LOAD CURRENT (mA) LOAD CURRENT (A) 8652S G03 8652S G04 Rev. 0 4 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts
ELECTRICAL CHARACTERISTICS Note 1:
Stresses beyond those listed under Absolute Maximum Ratings than 125°C. The junction temperature (TJ, in °C) is calculated from the may cause permanent damage to the device. Exposure to any Absolute ambient temperature (TA, in °C) and power dissipation (PD, in watts) Maximum Rating condition for extended periods may affect device according to the formula: reliability and lifetime. TJ = TA + (PD • θJA), where θJA (in °C/W) is the package thermal
Note 2:
The LT8652SE is guaranteed to meet performance specifications impedance. from 0°C to 125°C junction temperature. Specifications over the –40°C
Note 3:
This IC includes overtemperature protection that is intended to to 125°C operating junction temperature range are assured by design, protect the device during overload conditions. Junction temperature will characterization and correlation with statistical process controls. The exceed 150°C when overtemperature protection is active. Continuous LT8652SI is guaranteed over the full –40°C to 125°C operating junction operation above the specified maximum operating junction temperature temperature range. High junction temperatures degrade operating will reduce lifetime. lifetimes. Operating lifetime is derated at junction temperatures greater
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. 12VIN to 1.0VOUT Efficiency 5.0VIN to 1.0VOUT Efficiency
100 6.0 100 6.0 L = XEL4030 1MHz, L = 0.47µH L = XEL4030 1MHz, L = 0.47µH 95 5.5 BIAS = 5V 1.5MHz, L = 0.3µH 95 5.5 FCM 1.5MHz, L = 0.3µH 90 FCM 2MHz, L = 0.2µH 5.0 90 2MHz, L = 0.2µH 5.0 85 4.5 85 4.5 POWER LOSS (W) POWER LOSS (W) 80 EFFICIENCY 4.0 80 EFFICIENCY 4.0 75 3.5 75 3.5 70 3.0 70 3.0 65 2.5 65 2.5 EFFICIENCY (%) 60 2.0 EFFICIENCY (%) 60 2.0 55 1.5 POWER LOSS 55 1.5 POWER LOSS 50 1.0 50 1.0 45 0.5 45 0.5 40 0 40 0 0 2 4 6 8 10 12 0 2 4 6 8 10 12 LOAD CURRENT (A) LOAD CURRENT (A) 8652S G01 8652S G02
1.0VOUT Efficiency—Burst Mode Operation 12.0VIN to 1.2VOUT Efficiency
100 100 6.0 L = XEL4030–301ME, 0.3µH L = XEL4030 1MHz, L = 0.47µH 95 5.5 90 BIAS = 5V BIAS = 5V 1.5MHz, L = 0.3µH 90 FCM 2MHz, L = 0.2µH 5.0 80 85 4.5 70 POWER LOSS (W) 80 EFFICIENCY 4.0 60 75 3.5 50 70 3.0 65 2.5 40 EFFICIENCY (%) EFFICIENCY (%) 60 2.0 30 55 1.5 POWER LOSS 20 50 1.0 5V 10 IN 45 0.5 12VIN 0 40 0 1 10 100 1k 10k 0 2 4 6 8 10 12 LOAD CURRENT (mA) LOAD CURRENT (A) 8652S G03 8652S G04 Rev. 0 4 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts