Datasheet LT8652S (Analog Devices) - 8
| 制造商 | Analog Devices |
| 描述 | Dual Channel 8.5A, 18V, Synchronous Step-Down Silent Switcher with 16µA Quiescent Current |
| 页数 / 页 | 36 / 8 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| 修订版 | A |
| 文件格式/大小 | PDF / 4.2 Mb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Bias Pin Current. LT8652S Transient Response
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LT8652S
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Bias Pin Current Bias Pin Current
21.0 60 VBIAS = 5V VBIAS = 5V ILOAD = 3A EACH CHANNEL ILOAD = 3A EACH CHANNEL 20.5 fSW = 1MHz 50 VIN = 8V 20.0 40 19.5 30 19.0 20 BIAS PIN CURRENT (mA) BIAS PIN CURRENT (mA) 18.5 10 18.0 0 6 8 10 12 14 16 18 0 0.5 1 1.5 2 2.5 3 3.5 INPUT VOLTAGE (V) SWITCHING FREQUENCY (MHZ) LT8652 G31 LT8652 G32
LT8652S Transient Response LT8652S Transient Response Internal Compensation Internal Compensation
ILOAD 5A/DIV ILOAD 5A/DIV VOUT VOUT 100mV/DIV 100mV/DIV 20µs/DIV 8652S G33 20µs/DIV 8652S G34 6A TO 12A TRANSIENT 500mA TO 6A TRANSIENT 12VIN TO 1VOUT 12VIN TO 1VOUT COUT = 340µF COUT = 340µF FCM, fSW = 2MHz FCM, fSW = 2MHz
LT8652S Transient Response LT8652S Transient Response External Compensation External Compensation
ILOAD 5A/DIV ILOAD 5A/DIV VOUT VOUT 100mV/DIV 100mV/DIV 20µs/DIV 8652S G35 20µs/DIV 8652S G36 6A TO 12A TRANSIENT 500mA TO 6A TRANSIENT 12VIN TO 1VOUT 12VIN TO 1VOUT COUT = 340µF COUT = 340µF FCM, fSW = 2MHz FCM, fSW = 2MHz CC = 220pF, RC = 17.1kΩ CC = 220pF, RC = 17.1kΩ Rev. A 8 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 Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Bias Pin Current Bias Pin Current
21.0 60 VBIAS = 5V VBIAS = 5V ILOAD = 3A EACH CHANNEL ILOAD = 3A EACH CHANNEL 20.5 fSW = 1MHz 50 VIN = 8V 20.0 40 19.5 30 19.0 20 BIAS PIN CURRENT (mA) BIAS PIN CURRENT (mA) 18.5 10 18.0 0 6 8 10 12 14 16 18 0 0.5 1 1.5 2 2.5 3 3.5 INPUT VOLTAGE (V) SWITCHING FREQUENCY (MHZ) LT8652 G31 LT8652 G32
LT8652S Transient Response LT8652S Transient Response Internal Compensation Internal Compensation
ILOAD 5A/DIV ILOAD 5A/DIV VOUT VOUT 100mV/DIV 100mV/DIV 20µs/DIV 8652S G33 20µs/DIV 8652S G34 6A TO 12A TRANSIENT 500mA TO 6A TRANSIENT 12VIN TO 1VOUT 12VIN TO 1VOUT COUT = 340µF COUT = 340µF FCM, fSW = 2MHz FCM, fSW = 2MHz
LT8652S Transient Response LT8652S Transient Response External Compensation External Compensation
ILOAD 5A/DIV ILOAD 5A/DIV VOUT VOUT 100mV/DIV 100mV/DIV 20µs/DIV 8652S G35 20µs/DIV 8652S G36 6A TO 12A TRANSIENT 500mA TO 6A TRANSIENT 12VIN TO 1VOUT 12VIN TO 1VOUT COUT = 340µF COUT = 340µF FCM, fSW = 2MHz FCM, fSW = 2MHz CC = 220pF, RC = 17.1kΩ CC = 220pF, RC = 17.1kΩ Rev. A 8 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 Revision History Typical Application Related Parts