Datasheet LTC3411A (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | 1.25A, 4MHz, Synchronous Step-Down DC/DC Converter |
| Pages / Page | 22 / 5 — Typical perForMance characTerisTics. TA = 25°C, VIN = 3.6V, fO = 1MHz, … |
| File Format / Size | PDF / 1.5 Mb |
| Document Language | English |
Typical perForMance characTerisTics. TA = 25°C, VIN = 3.6V, fO = 1MHz, unless. otherwise noted. Frequency Variation vs VIN
Model Line for this Datasheet
Text Version of Document
LTC3411A
Typical perForMance characTerisTics TA = 25°C, VIN = 3.6V, fO = 1MHz, unless otherwise noted. Frequency Variation vs VIN RDS(ON) vs Input Voltage RDS(ON) vs Temperature
6 0.25 0.30 4 0.20 0.25 2 TION (%) 0.20 0.15 0 (Ω) (Ω) ARIA 0.15 –2 R DS(ON) 0.10 R DS(ON) 0.10 –4 FREQUENCY V 0.05 –6 MAIN SWITCH 0.05 MAIN SWITCH SYNCHRONOUS SWITCH SYNCHRONOUS SWITCH –8 0.0 0.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 –50 –25 0 25 50 75 100 125 VIN (V) INPUT VOLTAGE (V) TEMPERATURE (°C) 3411A G10 3411A G11 3411A G12
Dynamic Supply Current vs Input Dynamic Supply Current vs Voltage Temperature Switch Leakage vs Input Voltage
100 100 2500 10 FORCED CONTINUOUS 10 FORCED CONTINUOUS 2000 MAIN SWITCH 1 1 1500 Y CURRENT (mA) PULSE SKIP Y CURRENT (mA) PULSE SKIP 0.1 Burst Mode 0.1 Burst Mode 1000 OPERATION OPERATION SWITCH LEAKAGE (pA) SYNCHRONOUS SWITCH 0.01 0.01 500 DYNAMIC SUPPL VOUT = 1.8V DYNAMIC SUPPL VOUT = 1.8V ILOAD = 0A ILOAD = 0A 0.001 0.001 0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 –50 –25 0 25 50 75 100 125 0 1 2 3 4 5 6 VIN (V) TEMPERATURE (°C) INPUT VOLTAGE(V) 3411A G13 3411A G14 3411A G15
Switch Leakage vs Temperature Burst Mode Operation Pulse Skippng Mode
600 SW SW 500 2V/DIV 2V/DIV 400 VOUT VOUT 50mV/DIV 50mV/DIV 300 AC COUPLED AC COUPLED IL IL 200 200mA/DIV 200mA/DIV SWITCH LEAKAGE (nA) MAIN SWITCH SYNCHRONOUS SWITCH 100 3411A G17 4µs/DIV 3411A G18 4µs/DIV VIN = 3.6V VIN = 3.6V 0 VOUT = 1.8V VOUT = 1.8V –50 –25 0 25 50 75 100 125 ILOAD = 50mA ILOAD = 5mA TEMPERATURE (°C) 3411A G16 3411afd For more information www.linear.com/LTC3411A 5 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 Revision History Typical Application Related Parts
Typical perForMance characTerisTics TA = 25°C, VIN = 3.6V, fO = 1MHz, unless otherwise noted. Frequency Variation vs VIN RDS(ON) vs Input Voltage RDS(ON) vs Temperature
6 0.25 0.30 4 0.20 0.25 2 TION (%) 0.20 0.15 0 (Ω) (Ω) ARIA 0.15 –2 R DS(ON) 0.10 R DS(ON) 0.10 –4 FREQUENCY V 0.05 –6 MAIN SWITCH 0.05 MAIN SWITCH SYNCHRONOUS SWITCH SYNCHRONOUS SWITCH –8 0.0 0.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 –50 –25 0 25 50 75 100 125 VIN (V) INPUT VOLTAGE (V) TEMPERATURE (°C) 3411A G10 3411A G11 3411A G12
Dynamic Supply Current vs Input Dynamic Supply Current vs Voltage Temperature Switch Leakage vs Input Voltage
100 100 2500 10 FORCED CONTINUOUS 10 FORCED CONTINUOUS 2000 MAIN SWITCH 1 1 1500 Y CURRENT (mA) PULSE SKIP Y CURRENT (mA) PULSE SKIP 0.1 Burst Mode 0.1 Burst Mode 1000 OPERATION OPERATION SWITCH LEAKAGE (pA) SYNCHRONOUS SWITCH 0.01 0.01 500 DYNAMIC SUPPL VOUT = 1.8V DYNAMIC SUPPL VOUT = 1.8V ILOAD = 0A ILOAD = 0A 0.001 0.001 0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 –50 –25 0 25 50 75 100 125 0 1 2 3 4 5 6 VIN (V) TEMPERATURE (°C) INPUT VOLTAGE(V) 3411A G13 3411A G14 3411A G15
Switch Leakage vs Temperature Burst Mode Operation Pulse Skippng Mode
600 SW SW 500 2V/DIV 2V/DIV 400 VOUT VOUT 50mV/DIV 50mV/DIV 300 AC COUPLED AC COUPLED IL IL 200 200mA/DIV 200mA/DIV SWITCH LEAKAGE (nA) MAIN SWITCH SYNCHRONOUS SWITCH 100 3411A G17 4µs/DIV 3411A G18 4µs/DIV VIN = 3.6V VIN = 3.6V 0 VOUT = 1.8V VOUT = 1.8V –50 –25 0 25 50 75 100 125 ILOAD = 50mA ILOAD = 5mA TEMPERATURE (°C) 3411A G16 3411afd For more information www.linear.com/LTC3411A 5 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 Revision History Typical Application Related Parts
