Datasheet LTC3850, LTC3850-1 (Analog Devices) - 6
| Manufacturer | Analog Devices |
| Description | Dual, 2-Phase Synchronous Step-Down Switching Controller |
| Pages / Page | 38 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS. Load Step. (Burst Mode Operation). … |
| Revision | D |
| File Format / Size | PDF / 1.2 Mb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Load Step. (Burst Mode Operation). (Forced Continuous Mode). (Pulse-Skipping Mode)
Model Line for this Datasheet
- LTC3850EGN#PBF LTC3850EGN#TRPBF LTC3850EGN#WPBF LTC3850EGN#WTRPBF LTC3850EGN-1#PBF LTC3850EGN-1#TRPBF LTC3850EGN-1#WPBF LTC3850EGN-1#WTRPBF LTC3850EUF#PBF LTC3850EUF#TRPBF LTC3850EUFD#PBF LTC3850EUFD#TRPBF LTC3850IGN#PBF LTC3850IGN#TRPBF LTC3850IGN#WPBF LTC3850IGN#WTRPBF LTC3850IGN-1#PBF LTC3850IGN-1#TRPBF LTC3850IGN-1#WPBF LTC3850IGN-1#WTRPBF LTC3850IUF#PBF LTC3850IUF#TRPBF LTC3850IUFD#PBF LTC3850IUFD#TRPBF
Text Version of Document
LTC3850/LTC3850-1
TYPICAL PERFORMANCE CHARACTERISTICS Load Step Load Step (Burst Mode Operation) (Forced Continuous Mode)
ILOAD ILOAD 2A/DIV 2A/DIV 200mA TO 2.5A 200mA TO 2.5A IL IL 2A/DIV 2A/DIV VOUT VOUT 100mV/DIV 100mV/DIV AC COUPLED AC COUPLED 38501 G04 40µs/DIV 38501 G05 40µs/DIV CIRCUIT OF FIGURE 14 CIRCUIT OF FIGURE 14 VIN = 12V, VOUT = 1.8V VIN = 12V, VOUT = 1.8V
Load Step (Pulse-Skipping Mode) Inductor Current at Light Load
ILOAD FORCED 2A/DIV CONTINUOUS 200mA TO 2.5A MODE 2A/DIV IL 2A/DIV Burst Mode OPERATION VOUT 2A/DIV 100mV/DIV AC COUPLED PULSE-SKIPPING MODE 2A/DIV 38501 G06 38501 G07 40µs/DIV 1µs/DIV CIRCUIT OF FIGURE 14 CIRCUIT OF FIGURE 14 VIN = 12V, VOUT = 1.8V VIN = 12V, VOUT = 1.8V ILOAD = 100µA
Prebiased Output at 2V Coincident Tracking
RUN1 2V/DIV V V OUT V OUT1, 3.3V 2V/DIV TK/SS 500mV/DIV 3Ω LOAD, 1V/DIV VOUT2, 1.8V VFB 1.5Ω LOAD 500mV/DIV 1V/DIV 38501 G08 38501 G09 2.5ms/DIV 1ms/DIV Rev. D 6 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS Load Step Load Step (Burst Mode Operation) (Forced Continuous Mode)
ILOAD ILOAD 2A/DIV 2A/DIV 200mA TO 2.5A 200mA TO 2.5A IL IL 2A/DIV 2A/DIV VOUT VOUT 100mV/DIV 100mV/DIV AC COUPLED AC COUPLED 38501 G04 40µs/DIV 38501 G05 40µs/DIV CIRCUIT OF FIGURE 14 CIRCUIT OF FIGURE 14 VIN = 12V, VOUT = 1.8V VIN = 12V, VOUT = 1.8V
Load Step (Pulse-Skipping Mode) Inductor Current at Light Load
ILOAD FORCED 2A/DIV CONTINUOUS 200mA TO 2.5A MODE 2A/DIV IL 2A/DIV Burst Mode OPERATION VOUT 2A/DIV 100mV/DIV AC COUPLED PULSE-SKIPPING MODE 2A/DIV 38501 G06 38501 G07 40µs/DIV 1µs/DIV CIRCUIT OF FIGURE 14 CIRCUIT OF FIGURE 14 VIN = 12V, VOUT = 1.8V VIN = 12V, VOUT = 1.8V ILOAD = 100µA
Prebiased Output at 2V Coincident Tracking
RUN1 2V/DIV V V OUT V OUT1, 3.3V 2V/DIV TK/SS 500mV/DIV 3Ω LOAD, 1V/DIV VOUT2, 1.8V VFB 1.5Ω LOAD 500mV/DIV 1V/DIV 38501 G08 38501 G09 2.5ms/DIV 1ms/DIV Rev. D 6 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
