Datasheet LT8610A, LT8610AB (Analog Devices) - 3
| 制造商 | Analog Devices |
| 描述 | 42V, 3.5A Synchronous Step-Down Regulator with 2.5μA Quiescent Current |
| 页数 / 页 | 26 / 3 — ELECTRICAL. CHARACTERISTICS The. denotes the specifications which apply … |
| 文件格式/大小 | PDF / 382 Kb |
| 文件语言 | 英语 |
ELECTRICAL. CHARACTERISTICS The. denotes the specifications which apply over the full operating
文件文字版本
LT8610A/LT8610AB Series
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
Minimum Input Voltage (Note 4) l 2.9 3.4 V VIN Quiescent Current VEN/UV = 0V 1.0 3 µA l 1.0 8 µA VEN/UV = 2V, Not Switching, VSYNC = 0V 1.7 4 µA l 1.7 10 µA VEN/UV = 2V, Not Switching, VSYNC = 2V 0.26 0.5 mA VIN Current in Regulation VOUT = 0.97V, VIN = 6V, Output Load = 100µA (LT8610A) l 24 50 µA VOUT = 0.97V, VIN = 6V, Output Load = 1mA (LT8610A) l 210 350 µA VOUT = 0.97V, VIN = 6V, Output Load = 100µA (LT8610AB) l 24 50 µA VOUT = 0.97V, VIN = 6V, Output Load = 1mA (LT8610AB) l 210 350 µA VIN Current in Regulation VOUT = 3.3V, VIN = 8V, Output Load = 100µA (LT8610A-3.3) l 60 120 µA VOUT = 3.3V, VIN = 8V, Output Load = 1mA (LT8610A-3.3) l 540 900 µA VOUT = 3.3V, VIN = 8V, Output Load = 100µA (LT8610AB-3.3) l 55 100 µA VOUT = 3.3V, VIN = 8V, Output Load = 1mA (LT8610AB-3.3) l 500 800 µA VOUT = 5V, VIN = 8V, Output Load = 100µA (LT8610A-5) l 100 180 µA VOUT = 5V, VIN = 8V, Output Load = 1mA (LT8610A-5) l 790 1200 µA VOUT = 5V, VIN = 8V, Output Load = 100µA (LT8610AB-5) l 80 150 µA VOUT = 5V, VIN = 8V, Output Load = 1mA (LT8610AB-5) l 730 1100 µA Feedback Reference Voltage VIN = 6V, ILOAD = 0.5A 0.964 0.970 0.976 V (LT8610A/LT8610AB) VIN = 6V, ILOAD = 0.5A l 0.958 0.970 0.982 V Output Voltage VIN = 8V, ILOAD = 0.5A 3.28 3.30 3.32 V (LT8610A-3.3/LT8610AB-3.3) VIN = 8V, ILOAD = 0.5A l 3.26 3.30 3.34 V Output Voltage VIN = 8V, ILOAD = 0.5A 4.97 5.00 5.03 V (LT8610A-5/LT8610AB-5) VIN = 8V, ILOAD = 0.5A l 4.94 5.00 5.06 V Feedback Voltage Line Regulation VIN = 4V to 42V, ILOAD = 1A l 0.004 0.02 %/V (LT8610A/LT8610AB) Voltage Line Regulation VIN = 4V to 42V, ILOAD = 1A l 0.004 0.02 %/V (LT8610A-3.3/LT8610AB-3.3) Voltage Line Regulation VIN = 6V to 42V, ILOAD = 1A l 0.004 0.02 %/V (LT8610A-5/LT8610AB-5) Feedback Pin Input Current VFB = 1V –20 20 nA (LT8610A/LT8610AB) Internal Feedback Resistor Divider 14.3 MΩ (LT8610A-3.3/LT8610AB-3.3) Internal Feedback Resistor Divider 12.5 MΩ (LT8610A-5/LT8610AB-5) INTVCC Voltage ILOAD = 0mA, VBIAS = 0V 3.23 3.4 3.57 V ILOAD = 0mA, VBIAS = 3.3V 3.25 3.29 3.35 V INTVCC Undervoltage Lockout 2.5 2.6 2.7 V BIAS Pin Current Consumption VBIAS = 3.3V, ILOAD = 1A, 2MHz 9 mA Minimum On-Time ILOAD = 1A, SYNC = 0V l 15 30 45 ns ILOAD = 1A, SYNC = 3.3V l 15 30 45 ns Minimum Off-Time 95 125 ns 8610abfa For more information www.linear.com/LT8610A 3 Document Outline Features Applications Description Typical Application 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
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
Minimum Input Voltage (Note 4) l 2.9 3.4 V VIN Quiescent Current VEN/UV = 0V 1.0 3 µA l 1.0 8 µA VEN/UV = 2V, Not Switching, VSYNC = 0V 1.7 4 µA l 1.7 10 µA VEN/UV = 2V, Not Switching, VSYNC = 2V 0.26 0.5 mA VIN Current in Regulation VOUT = 0.97V, VIN = 6V, Output Load = 100µA (LT8610A) l 24 50 µA VOUT = 0.97V, VIN = 6V, Output Load = 1mA (LT8610A) l 210 350 µA VOUT = 0.97V, VIN = 6V, Output Load = 100µA (LT8610AB) l 24 50 µA VOUT = 0.97V, VIN = 6V, Output Load = 1mA (LT8610AB) l 210 350 µA VIN Current in Regulation VOUT = 3.3V, VIN = 8V, Output Load = 100µA (LT8610A-3.3) l 60 120 µA VOUT = 3.3V, VIN = 8V, Output Load = 1mA (LT8610A-3.3) l 540 900 µA VOUT = 3.3V, VIN = 8V, Output Load = 100µA (LT8610AB-3.3) l 55 100 µA VOUT = 3.3V, VIN = 8V, Output Load = 1mA (LT8610AB-3.3) l 500 800 µA VOUT = 5V, VIN = 8V, Output Load = 100µA (LT8610A-5) l 100 180 µA VOUT = 5V, VIN = 8V, Output Load = 1mA (LT8610A-5) l 790 1200 µA VOUT = 5V, VIN = 8V, Output Load = 100µA (LT8610AB-5) l 80 150 µA VOUT = 5V, VIN = 8V, Output Load = 1mA (LT8610AB-5) l 730 1100 µA Feedback Reference Voltage VIN = 6V, ILOAD = 0.5A 0.964 0.970 0.976 V (LT8610A/LT8610AB) VIN = 6V, ILOAD = 0.5A l 0.958 0.970 0.982 V Output Voltage VIN = 8V, ILOAD = 0.5A 3.28 3.30 3.32 V (LT8610A-3.3/LT8610AB-3.3) VIN = 8V, ILOAD = 0.5A l 3.26 3.30 3.34 V Output Voltage VIN = 8V, ILOAD = 0.5A 4.97 5.00 5.03 V (LT8610A-5/LT8610AB-5) VIN = 8V, ILOAD = 0.5A l 4.94 5.00 5.06 V Feedback Voltage Line Regulation VIN = 4V to 42V, ILOAD = 1A l 0.004 0.02 %/V (LT8610A/LT8610AB) Voltage Line Regulation VIN = 4V to 42V, ILOAD = 1A l 0.004 0.02 %/V (LT8610A-3.3/LT8610AB-3.3) Voltage Line Regulation VIN = 6V to 42V, ILOAD = 1A l 0.004 0.02 %/V (LT8610A-5/LT8610AB-5) Feedback Pin Input Current VFB = 1V –20 20 nA (LT8610A/LT8610AB) Internal Feedback Resistor Divider 14.3 MΩ (LT8610A-3.3/LT8610AB-3.3) Internal Feedback Resistor Divider 12.5 MΩ (LT8610A-5/LT8610AB-5) INTVCC Voltage ILOAD = 0mA, VBIAS = 0V 3.23 3.4 3.57 V ILOAD = 0mA, VBIAS = 3.3V 3.25 3.29 3.35 V INTVCC Undervoltage Lockout 2.5 2.6 2.7 V BIAS Pin Current Consumption VBIAS = 3.3V, ILOAD = 1A, 2MHz 9 mA Minimum On-Time ILOAD = 1A, SYNC = 0V l 15 30 45 ns ILOAD = 1A, SYNC = 3.3V l 15 30 45 ns Minimum Off-Time 95 125 ns 8610abfa For more information www.linear.com/LT8610A 3 Document Outline Features Applications Description Typical Application 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