Datasheet LT8609S (Analog Devices) - 7
| Manufacturer | Analog Devices |
| Description | 42V, 2A/3A Peak Synchronous Step-Down Regulator with 2.5μA Quiescent Current |
| Pages / Page | 24 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS. Transient Response. Start-Up … |
| Revision | A |
| File Format / Size | PDF / 1.3 Mb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Transient Response. Start-Up Dropout. Case Temperature vs
Text Version of Document
LT8609S
TYPICAL PERFORMANCE CHARACTERISTICS Transient Response Transient Response
500mA/DIV 500mA/DIV 100mV/DIV 100mV/DIV 8609S G27 8609S G28 50µs/DIV 20µs/DIV 50mA TO 1A TRANSIENT 0.5A TO 1.5A TRANSIENT 12VIN TO 5VOUT 12VIN TO 5VOUT COUT = 47µF COUT = 47µF
Start-Up Dropout Start-Up Dropout
7 7 7 7 RLOAD = 2.5Ω RLOAD = 25Ω 6 6 6 6 OUTPUT VOL OUTPUT VOL 5 5 5 5 VOUT 4 4 VOUT 4 TAGE (V) 4 TAGE (V) T T 3 3 AGE (V) 3 3 AGE (V) INPUT VOL 2 2 INPUT VOL 2 2 VIN VIN 1 1 1 1 0 0 0 0 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 INPUT VOLTAGE (V) INPUT VOLTAGE (V) 8609S G30 8609S G29
Case Temperature vs Case Temperature vs Load Current 3A Pulsed Load
60 60 V V IN = 12V IN = 12V VIN = 24V 50 VIN = 24V 50 V STANDBY LOAD = 50mA OUT = 5V f PULSED LOAD = 3A SW = 2MHz V 40 40 OUT = 5V fSW = 2MHz TURE RISE (°C) 30 TURE RISE (°C) 30 20 20 CASE TEMPERA 10 CASE TEMPERA 10 0 0 0 0.25 0.50 0.75 1 1.25 1.50 1.75 2 0 10 20 30 40 50 60 70 80 90 100 LOAD CURRENT (A) DUTY CYCLE (%) 8609S G31 8609S G32 Rev. A For more information www.analog.com 7 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 Transient Response Transient Response
500mA/DIV 500mA/DIV 100mV/DIV 100mV/DIV 8609S G27 8609S G28 50µs/DIV 20µs/DIV 50mA TO 1A TRANSIENT 0.5A TO 1.5A TRANSIENT 12VIN TO 5VOUT 12VIN TO 5VOUT COUT = 47µF COUT = 47µF
Start-Up Dropout Start-Up Dropout
7 7 7 7 RLOAD = 2.5Ω RLOAD = 25Ω 6 6 6 6 OUTPUT VOL OUTPUT VOL 5 5 5 5 VOUT 4 4 VOUT 4 TAGE (V) 4 TAGE (V) T T 3 3 AGE (V) 3 3 AGE (V) INPUT VOL 2 2 INPUT VOL 2 2 VIN VIN 1 1 1 1 0 0 0 0 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 INPUT VOLTAGE (V) INPUT VOLTAGE (V) 8609S G30 8609S G29
Case Temperature vs Case Temperature vs Load Current 3A Pulsed Load
60 60 V V IN = 12V IN = 12V VIN = 24V 50 VIN = 24V 50 V STANDBY LOAD = 50mA OUT = 5V f PULSED LOAD = 3A SW = 2MHz V 40 40 OUT = 5V fSW = 2MHz TURE RISE (°C) 30 TURE RISE (°C) 30 20 20 CASE TEMPERA 10 CASE TEMPERA 10 0 0 0 0.25 0.50 0.75 1 1.25 1.50 1.75 2 0 10 20 30 40 50 60 70 80 90 100 LOAD CURRENT (A) DUTY CYCLE (%) 8609S G31 8609S G32 Rev. A For more information www.analog.com 7 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
