Datasheet LT8610A, LT8610AB (Analog Devices) - 9
| 制造商 | Analog Devices |
| 描述 | 42V, 3.5A Synchronous Step-Down Regulator with 2.5μA Quiescent Current |
| 页数 / 页 | 26 / 9 — TYPICAL PERFORMANCE CHARACTERISTICS. Bias Pin Current. Switching … |
| 文件格式/大小 | PDF / 382 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. Bias Pin Current. Switching Waveforms. LT8610A/LT8610AB. Transient Response
文件文字版本
LT8610A/LT8610AB Series
TYPICAL PERFORMANCE CHARACTERISTICS Bias Pin Current Bias Pin Current Switching Waveforms
6.5 12 VBIAS = 5V VBIAS = 5V 6.0 VOUT = 5V VOUT = 5V I I 10 L LOAD = 1A VIN = 12V 1A/DIV 5.5 fSW = 700kHz ILOAD = 1A 8 5.0 VSW 4.5 6 5V/DIV 4.0 4 500ns/DIV 8610ab G31 BIAS PIN CURRENT (mA) 3.5 BIAS PIN CURRENT (mA) 12VIN TO 5VOUT AT 1A 2 3.0 2.5 0 5 10 15 20 25 30 35 40 45 0 0.5 1 1.5 2 2.5 INPUT VOLTAGE (V) SWITCHING FREQUENCY (MHz) 8610ab G29 8610ab G30
LT8610A/LT8610AB Switching Waveforms Switching Waveforms Transient Response
IL IL 200mA/DIV 1A/DIV VOUT 200mV/DIV VSW VSW 10V/DIV IL 5V/DIV 2A/DIV 500µs/DIV 8610ab G32 500ns/DIV 8610ab G33 50µs/DIV 8610ab G34 12VIN TO 5VOUT AT 10mA 36VIN TO 5VOUT AT 1A 1.5A TO 3.5A TRANSIENT VSYNC = 0V 12VIN, 3.3VOUT (LT8610A) COUT = 47µF
LT8610A/LT8610AB Transient Response Start-Up Dropout Performance Start-Up Dropout Performance
VOUT VIN VIN 200mV/DIV VIN VIN 2V/DIV 2V/DIV V VOUT V OUT VOUT I OUT L 2V/DIV 2V/DIV 2A/DIV 50µs/DIV 8610ab G35 100ms/DIV 8610ab G37 100ms/DIV 8610ab G38 30mA TO 2A TRANSIENT 2.5Ω LOAD 20Ω LOAD 12V (250mA IN REGULATION) IN, 3.3VOUT (2A IN REGULATION) COUT = 47µF 8610abfa For more information www.linear.com/LT8610A 9 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
TYPICAL PERFORMANCE CHARACTERISTICS Bias Pin Current Bias Pin Current Switching Waveforms
6.5 12 VBIAS = 5V VBIAS = 5V 6.0 VOUT = 5V VOUT = 5V I I 10 L LOAD = 1A VIN = 12V 1A/DIV 5.5 fSW = 700kHz ILOAD = 1A 8 5.0 VSW 4.5 6 5V/DIV 4.0 4 500ns/DIV 8610ab G31 BIAS PIN CURRENT (mA) 3.5 BIAS PIN CURRENT (mA) 12VIN TO 5VOUT AT 1A 2 3.0 2.5 0 5 10 15 20 25 30 35 40 45 0 0.5 1 1.5 2 2.5 INPUT VOLTAGE (V) SWITCHING FREQUENCY (MHz) 8610ab G29 8610ab G30
LT8610A/LT8610AB Switching Waveforms Switching Waveforms Transient Response
IL IL 200mA/DIV 1A/DIV VOUT 200mV/DIV VSW VSW 10V/DIV IL 5V/DIV 2A/DIV 500µs/DIV 8610ab G32 500ns/DIV 8610ab G33 50µs/DIV 8610ab G34 12VIN TO 5VOUT AT 10mA 36VIN TO 5VOUT AT 1A 1.5A TO 3.5A TRANSIENT VSYNC = 0V 12VIN, 3.3VOUT (LT8610A) COUT = 47µF
LT8610A/LT8610AB Transient Response Start-Up Dropout Performance Start-Up Dropout Performance
VOUT VIN VIN 200mV/DIV VIN VIN 2V/DIV 2V/DIV V VOUT V OUT VOUT I OUT L 2V/DIV 2V/DIV 2A/DIV 50µs/DIV 8610ab G35 100ms/DIV 8610ab G37 100ms/DIV 8610ab G38 30mA TO 2A TRANSIENT 2.5Ω LOAD 20Ω LOAD 12V (250mA IN REGULATION) IN, 3.3VOUT (2A IN REGULATION) COUT = 47µF 8610abfa For more information www.linear.com/LT8610A 9 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