Datasheet LT3973, LT3973-3.3, LT3973-5 (Analog Devices) - 8
| Hersteller | Analog Devices |
| Beschreibung | 42V, 750mA Step-Down Regulator with 2.5μA Quiescent Current and Integrated Diodes |
| Seiten / Seite | 24 / 8 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| Dateiformat / Größe | PDF / 479 Kb |
| Dokumentensprache | Englisch |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Catch Diode Leakage. Power Good Threshold
Modelllinie für dieses Datenblatt
- LT3973EDD#PBF LT3973EDD#TRPBF LT3973EDD-3.3#PBF LT3973EDD-3.3#TRPBF LT3973EDD-5#PBF LT3973EDD-5#TRPBF LT3973EMSE#PBF LT3973EMSE#TRPBF LT3973EMSE-3.3#PBF LT3973EMSE-3.3#TRPBF LT3973EMSE-5#PBF LT3973EMSE-5#TRPBF LT3973HDD#PBF LT3973HDD#TRPBF LT3973HDD-3.3#PBF LT3973HDD-3.3#TRPBF LT3973HDD-5#PBF LT3973HDD-5#TRPBF LT3973HMSE#PBF LT3973HMSE#TRPBF LT3973HMSE-3.3#PBF LT3973HMSE-3.3#TRPBF LT3973HMSE-5#PBF LT3973HMSE-5#TRPBF LT3973IDD#PBF LT3973IDD#TRPBF LT3973IDD-3.3#PBF LT3973IDD-3.3#TRPBF LT3973IDD-5#PBF LT3973IDD-5#TRPBF LT3973IMSE#PBF LT3973IMSE#TRPBF LT3973IMSE-3.3#PBF LT3973IMSE-3.3#TRPBF LT3973IMSE-5#PBF LT3973IMSE-5#TRPBF
Textversion des Dokuments
LT3973/LT3973-3.3/LT3973-5
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Catch Diode Leakage Power Good Threshold EN/UVLO Threshold
250 92 1.245 VR = 12V EN/UVLO RISING 200 91 1.220 150 90 1.195 100 THRESHOLD (%) 89 CATCH DIODE LEAKAGE (µA) THRESHOLD VOLTAGE (V) 1.170 50 0 88 1.145 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3973 G28 3973 G29 3973 G30
Transient Load Response; Load Transient Load Response; Load Current is Stepped from 50mA Current is Stepped from 250mA (Burst Mode Operation) to 300mA to 500mA
V V OUT OUT 100mV/DIV 100mV/DIV I I L L 200mA/DIV 200mA/DIV 50µs/DIV 3973 G31 50µs/DIV 3973 G32 FRONT PAGE APPLICATION FRONT PAGE APPLICATION VIN = 12V VIN = 12V VOUT = 5V VOUT = 5V
Switching Waveforms, Switching Waveforms, Full Burst Mode Operation Frequency Continuous Operation
VSW VSW 5V/DIV 5V/DIV IL IL 200mA/DIV 200mA/DIV V V OUT OUT 10mV/DIV 5mV/DIV 5µs/DIV 3973 G33 1µs/DIV 3973 G34 FRONT PAGE APPLICATION FRONT PAGE APPLICATION VIN = 12V VIN = 12V VOUT = 5V VOUT = 5V ILOAD = 15mA ILOAD = 750mA f = 600kHz f = 600kHz 3973fb 8 For more information www.linear.com/LT3973 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 TA = 25°C, unless otherwise noted. Catch Diode Leakage Power Good Threshold EN/UVLO Threshold
250 92 1.245 VR = 12V EN/UVLO RISING 200 91 1.220 150 90 1.195 100 THRESHOLD (%) 89 CATCH DIODE LEAKAGE (µA) THRESHOLD VOLTAGE (V) 1.170 50 0 88 1.145 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3973 G28 3973 G29 3973 G30
Transient Load Response; Load Transient Load Response; Load Current is Stepped from 50mA Current is Stepped from 250mA (Burst Mode Operation) to 300mA to 500mA
V V OUT OUT 100mV/DIV 100mV/DIV I I L L 200mA/DIV 200mA/DIV 50µs/DIV 3973 G31 50µs/DIV 3973 G32 FRONT PAGE APPLICATION FRONT PAGE APPLICATION VIN = 12V VIN = 12V VOUT = 5V VOUT = 5V
Switching Waveforms, Switching Waveforms, Full Burst Mode Operation Frequency Continuous Operation
VSW VSW 5V/DIV 5V/DIV IL IL 200mA/DIV 200mA/DIV V V OUT OUT 10mV/DIV 5mV/DIV 5µs/DIV 3973 G33 1µs/DIV 3973 G34 FRONT PAGE APPLICATION FRONT PAGE APPLICATION VIN = 12V VIN = 12V VOUT = 5V VOUT = 5V ILOAD = 15mA ILOAD = 750mA f = 600kHz f = 600kHz 3973fb 8 For more information www.linear.com/LT3973 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