Datasheet LT8653S (Analog Devices) - 8
| 制造商 | Analog Devices |
| 描述 | Dual Channel 2A, 42V, Synchronous Step-Down Silent Switcher 2 with 6.2μA Quiescent Current |
| 页数 / 页 | 32 / 8 — TYPICAL PERFORMANCE CHARACTERISTICS. Switch Rising Edge. CH1, CH2 and … |
| 修订版 | A |
| 文件格式/大小 | PDF / 2.2 Mb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. Switch Rising Edge. CH1, CH2 and CLKOUT. Forced Continuous Mode (FCM)
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LT8653S
TYPICAL PERFORMANCE CHARACTERISTICS Switch Rising Edge CH1, CH2 and CLKOUT
SW1 10V/DIV SW2 VSW 10V/DIV 2V/DIV CLKOUT 2V/DIV 1ns/DIV 8653S G36 500ns/DIV 8653S G37 VIN = 12V CH1 = 5VOUT AT 0A CH2 = 3.3VOUT AT 0A SYNC = FLOAT
Forced Continuous Mode (FCM) Burst Mode Operation
SW 5V/DIV SW 5V/DIV I I L L 500mA/DIV 500mA/DIV 2µs/DIV 8653S G38 2µs/DIV 8653S G39 12VIN to 5VOUT AT 100mA 12VIN to 5VOUT AT 100mA SYNC = FLOAT SYNC = 0V
Case Temperature Rise Case Temperature Rise
120 100 110 DC2535A DEMO BOARD DC2535A DEMO BOARD V 90 V 100 OUT1 = 5V, VOUT2 = 3.3V IN = 12V fSW = 2MHz 80 VOUT1 = 5V, VOUT2 = 3.3V 90 fSW = 2MHz 70 80 70 60 TURE RISE (°C) 60 TURE RISE (°C) 50 50 40 40 30 30 CASE TEMPERA 20 20 CASE TEMPERA 10 10 0 0 0 0.5 1 1.5 2 2.5 3 0 0.2 0.4 0.6 0.8 1 LOAD1 CURRENT (A) DUTY CYCLE OF PULSED LOAD 8653S G40 8653S G41 12VIN, LOAD2 = LOAD 1 CH1 = CH2 = 0.5A STANDBY, 3A PULSED 24VIN, LOAD2 = LOAD 1 CH1 = 0.5A STANDBY, 3A PULSED; CH2 = 0A 12VIN, LOAD2 = 0A CH1 = 0.5A STANDBY, 3A PULSED; CH2 = 2A 12VIN, LOAD2 = 2A Rev. A 8 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS Switch Rising Edge CH1, CH2 and CLKOUT
SW1 10V/DIV SW2 VSW 10V/DIV 2V/DIV CLKOUT 2V/DIV 1ns/DIV 8653S G36 500ns/DIV 8653S G37 VIN = 12V CH1 = 5VOUT AT 0A CH2 = 3.3VOUT AT 0A SYNC = FLOAT
Forced Continuous Mode (FCM) Burst Mode Operation
SW 5V/DIV SW 5V/DIV I I L L 500mA/DIV 500mA/DIV 2µs/DIV 8653S G38 2µs/DIV 8653S G39 12VIN to 5VOUT AT 100mA 12VIN to 5VOUT AT 100mA SYNC = FLOAT SYNC = 0V
Case Temperature Rise Case Temperature Rise
120 100 110 DC2535A DEMO BOARD DC2535A DEMO BOARD V 90 V 100 OUT1 = 5V, VOUT2 = 3.3V IN = 12V fSW = 2MHz 80 VOUT1 = 5V, VOUT2 = 3.3V 90 fSW = 2MHz 70 80 70 60 TURE RISE (°C) 60 TURE RISE (°C) 50 50 40 40 30 30 CASE TEMPERA 20 20 CASE TEMPERA 10 10 0 0 0 0.5 1 1.5 2 2.5 3 0 0.2 0.4 0.6 0.8 1 LOAD1 CURRENT (A) DUTY CYCLE OF PULSED LOAD 8653S G40 8653S G41 12VIN, LOAD2 = LOAD 1 CH1 = CH2 = 0.5A STANDBY, 3A PULSED 24VIN, LOAD2 = LOAD 1 CH1 = 0.5A STANDBY, 3A PULSED; CH2 = 0A 12VIN, LOAD2 = 0A CH1 = 0.5A STANDBY, 3A PULSED; CH2 = 2A 12VIN, LOAD2 = 2A Rev. A 8 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts