Datasheet LTC3670 (Analog Devices) - 5
| Hersteller | Analog Devices |
| Beschreibung | Monolithic 400mA Buck Regulator with Dual 150mA LDOs in 3mm × 2mm DFN |
| Seiten / Seite | 14 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C unless otherwise noted). … |
| Revision | A |
| Dateiformat / Größe | PDF / 401 Kb |
| Dokumentensprache | Englisch |
TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C unless otherwise noted). PMOS Switch Maximum Peak. PGOOD Threshold at Any
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LTC3670
TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C unless otherwise noted) PMOS Switch Maximum Peak PGOOD Threshold at Any Current vs Temperature Buck PMOS On-Resistance Feedback Pin
900 1000 V 100 IN = 5.5V 800 900 99 V 800 130°C 90°C 700 IN = 4.2V 98 VIN = 3.6V 700 600 25°C 97 VIN = 2.5V ANCE (mΩ) 600 96 500 TION POINT (%) 500 –45°C 95 400 400 94 90°C 300 300 93 130°C 200 PMOS ON-RESIST 200 92 PMOS MAXIMUM PEAK CURRENT (mA) 100 100 FRACTION OF REGULA 91 –45°C 25°C 0 0 90 –50 –30 –10 10 30 50 70 90 110 130 2.5 3 3.5 4 4.5 5 5.5 2.5 3 3.5 4 4.5 5 5.5 TEMPERATURE (˚C) VIN (V) VIN (V) 3670 G1O 3670 G11 3670 G12
PGOOD Pin Pull-Down Resistance Front Page Application Efficiency Vin (V)
80 100 PGOOD PIN SINKING 2mA FRONT PAGE APPLICATION CIRCUIT 70 95 WITH ONLY THE BUCK ENABLED. INDUCTOR: COILCRAFT EPL2014-472ML ANCE (Ω) 60 90 VOUT = 1.2V VIN = 2.5V 50 130°C 85 90°C 40 25°C 80 VIN = 3.6V 30 EFFICIENCY (%) 75 V 20 –45°C 70 IN = 5.5V 10 65 PGOOD PIN PULL-DOWN RESIST 0 60 2.5 3 3.5 4 4.5 5 5.5 1 10 100 1000 VIN (V) LOAD CURRENT (mA) 3670 G13 3670 G14 Rev A For more information www.analog.com 5 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C unless otherwise noted) PMOS Switch Maximum Peak PGOOD Threshold at Any Current vs Temperature Buck PMOS On-Resistance Feedback Pin
900 1000 V 100 IN = 5.5V 800 900 99 V 800 130°C 90°C 700 IN = 4.2V 98 VIN = 3.6V 700 600 25°C 97 VIN = 2.5V ANCE (mΩ) 600 96 500 TION POINT (%) 500 –45°C 95 400 400 94 90°C 300 300 93 130°C 200 PMOS ON-RESIST 200 92 PMOS MAXIMUM PEAK CURRENT (mA) 100 100 FRACTION OF REGULA 91 –45°C 25°C 0 0 90 –50 –30 –10 10 30 50 70 90 110 130 2.5 3 3.5 4 4.5 5 5.5 2.5 3 3.5 4 4.5 5 5.5 TEMPERATURE (˚C) VIN (V) VIN (V) 3670 G1O 3670 G11 3670 G12
PGOOD Pin Pull-Down Resistance Front Page Application Efficiency Vin (V)
80 100 PGOOD PIN SINKING 2mA FRONT PAGE APPLICATION CIRCUIT 70 95 WITH ONLY THE BUCK ENABLED. INDUCTOR: COILCRAFT EPL2014-472ML ANCE (Ω) 60 90 VOUT = 1.2V VIN = 2.5V 50 130°C 85 90°C 40 25°C 80 VIN = 3.6V 30 EFFICIENCY (%) 75 V 20 –45°C 70 IN = 5.5V 10 65 PGOOD PIN PULL-DOWN RESIST 0 60 2.5 3 3.5 4 4.5 5 5.5 1 10 100 1000 VIN (V) LOAD CURRENT (mA) 3670 G13 3670 G14 Rev A For more information www.analog.com 5 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Typical Application Related Parts