Datasheet LT8653S (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | Dual Channel 2A, 42V, Synchronous Step-Down Silent Switcher 2 with 6.2μA Quiescent Current |
| Pages / Page | 30 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS. 5V Output Voltage. 3.3V Output … |
| File Format / Size | PDF / 2.2 Mb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. 5V Output Voltage. 3.3V Output Voltage. 1.8V Output Voltage. No Load Supply Current with
Text Version of Document
LT8653S
TYPICAL PERFORMANCE CHARACTERISTICS 5V Output Voltage 3.3V Output Voltage 1.8V Output Voltage
5.100 3.360 1.840 5.080 3.345 1.830 5.060 3.330 1.820 5.040 TAGE (V) 5.020 3.315 TAGE (V) 1.810 TAGE (V) 5.000 3.300 1.800 4.980 3.285 1.790 4.960 REFERENCE VOL REFERENCE VOL 3.270 REFERENCE VOL 1.780 4.940 4.920 3.255 1.770 4.900 3.240 1.760 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 8653S G10 8653S G11 8653S G12
No Load Supply Current with No Load Supply Current with Internal Compensation External Compensation No Load Supply Current
16 160 120 VOUT1 = 5V, VOUT2 = 3.3V VOUT1 = 5V, VOUT2 = 3.3V VIN = 12V SYNC = 0V, BIAS = V 14 OUT1 SYNC = 0V 140 VOUT1 = 5V, VOUT2 = 3.3V BOTH CHANNELS IN REGULATION BOTH CHANNELS IN REGULATION 100 D0/D1 = OPEN/OPEN INTERNAL COMPENSATION 12 EXTERNAL COMPENSATION 120 VBIAS = VOUT1, SYNC = 0V BOTH CHANNELS IN REGULATION 80 10 100 INTERNAL COMPENSATION EXTERNAL COMPENSATION 8 80 60 6 60 40 INPUT CURRENT (µA) INPUT CURRENT (µA) INPUT CURRENT (µA) 4 40 20 2 INTERNAL FB DIVIDER (D0 = D1 = OPEN) 20 BIAS = VOUT1 EXTERNAL FB DIVIDER (D0 = D1 = 0V) BIAS = FLOAT 0 0 0 5 10 15 20 25 30 35 40 5 10 15 20 25 30 35 40 –55 –25 5 35 65 95 125 155 INPUT VOLTAGE (V) INPUT VOLTAGE (V) TEMPERATURE (°C) 8653S G13 8653S G14 8653S G15
Top FET Current Limit T Top FET Current Limit T
7 7 30% DC 6 6 5 5 4 4 3 3 CURRENT LIMIT (A) 2 CURRENT LIMIT (A) 2 1 1 0 0 0 0.2 0.4 0.6 0.8 1 –55 –25 5 35 65 95 125 155 DUTY CYCLE TEMPERATURE (°C) 8653S G16 8653S G17 Rev. 0 For more information www.analog.com 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS 5V Output Voltage 3.3V Output Voltage 1.8V Output Voltage
5.100 3.360 1.840 5.080 3.345 1.830 5.060 3.330 1.820 5.040 TAGE (V) 5.020 3.315 TAGE (V) 1.810 TAGE (V) 5.000 3.300 1.800 4.980 3.285 1.790 4.960 REFERENCE VOL REFERENCE VOL 3.270 REFERENCE VOL 1.780 4.940 4.920 3.255 1.770 4.900 3.240 1.760 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 8653S G10 8653S G11 8653S G12
No Load Supply Current with No Load Supply Current with Internal Compensation External Compensation No Load Supply Current
16 160 120 VOUT1 = 5V, VOUT2 = 3.3V VOUT1 = 5V, VOUT2 = 3.3V VIN = 12V SYNC = 0V, BIAS = V 14 OUT1 SYNC = 0V 140 VOUT1 = 5V, VOUT2 = 3.3V BOTH CHANNELS IN REGULATION BOTH CHANNELS IN REGULATION 100 D0/D1 = OPEN/OPEN INTERNAL COMPENSATION 12 EXTERNAL COMPENSATION 120 VBIAS = VOUT1, SYNC = 0V BOTH CHANNELS IN REGULATION 80 10 100 INTERNAL COMPENSATION EXTERNAL COMPENSATION 8 80 60 6 60 40 INPUT CURRENT (µA) INPUT CURRENT (µA) INPUT CURRENT (µA) 4 40 20 2 INTERNAL FB DIVIDER (D0 = D1 = OPEN) 20 BIAS = VOUT1 EXTERNAL FB DIVIDER (D0 = D1 = 0V) BIAS = FLOAT 0 0 0 5 10 15 20 25 30 35 40 5 10 15 20 25 30 35 40 –55 –25 5 35 65 95 125 155 INPUT VOLTAGE (V) INPUT VOLTAGE (V) TEMPERATURE (°C) 8653S G13 8653S G14 8653S G15
Top FET Current Limit T Top FET Current Limit T
7 7 30% DC 6 6 5 5 4 4 3 3 CURRENT LIMIT (A) 2 CURRENT LIMIT (A) 2 1 1 0 0 0 0.2 0.4 0.6 0.8 1 –55 –25 5 35 65 95 125 155 DUTY CYCLE TEMPERATURE (°C) 8653S G16 8653S G17 Rev. 0 For more information www.analog.com 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts
