Datasheet LT3682 (Analog Devices) - 6
| Hersteller | Analog Devices |
| Beschreibung | 1A Micropower Step-Down Switching Regulator |
| Seiten / Seite | 24 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| Dateiformat / Größe | PDF / 265 Kb |
| Dokumentensprache | Englisch |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. RUN/SS Pin Current. Boost Diode Forward Voltage
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LT3682
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. RUN/SS Pin Current Boost Diode Forward Voltage Error Amplifi er Output Current
12 1.4 60 50 10 1.2 40 30 1 8 (V) 20 V f 0.8 10 6 0 0.6 10 4 PIN CURRENT (μA) 20 BOOST DIODE 0.4 V C RUN/SS PIN CURRENT (μA) 30 2 40 0.2 50 0 0 60 0 5 10 15 20 25 30 35 40 0 0.25 0.5 0.75 1 200 100 0 100 200 RUN/SS PIN VOLTAGE (V) BOOST DIODE CURRENT (A) FB PIN ERROR VOLTAGE (mV) 3682 G19 3682 G20 3682 G21
Minimum Input Voltage Minimum Input Voltage Maximum VIN for Full Frequency
5 6.5 40 35 4.5 6 30 4 5.5 TA = 85˚C 25 TAGE (V) TAGE (V) (V) 3.5 INV 20 5 TA = 25˚C 3 INPUT VOL INPUT VOL 15 VOUT = 3.3V 4.5 2.5 V V L = 10μH OUT = 3.3V OUT = 5V 10 L = 10μH L = 10μH f = 800kHz f = 800kHz f = 800kHz SYNC = 3.3V 2 4 5 1 10 100 1000 1 10 100 1000 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 LOAD CURRENT (mA) LOAD CURRENT (mA) LOAD CURRENT(A) 3682 G23 3682 G24 3682 G22
Maximum VIN for Full Frequency Maximum VIN for Full Frequency VC Voltages
40 40 2.5 35 35 TA = 25˚C 2 30 30 CURRENT LIMIT CLAMP TA = 85˚C 1.5 25 TA = 85˚C 25 (V) (V) IN IN TAGE (V) V 20 V 20 VOL 1 T C A = 25˚C V SWITCHING THRESHOLD 15 15 VOUT = 5V VOUT = 5V L = 10μH L = 4.7μH 0.5 10 10 f = 800kHz f = 2MHz SYNC = 5V SYNC =5V 5 5 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 50 25 0 25 50 75 100 125 LOAD CURRENT(A) LOAD CURRENT(A) TEMPERATURE(°C) 3682 G25 3682 G26 3682 G27 3682f 6
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. RUN/SS Pin Current Boost Diode Forward Voltage Error Amplifi er Output Current
12 1.4 60 50 10 1.2 40 30 1 8 (V) 20 V f 0.8 10 6 0 0.6 10 4 PIN CURRENT (μA) 20 BOOST DIODE 0.4 V C RUN/SS PIN CURRENT (μA) 30 2 40 0.2 50 0 0 60 0 5 10 15 20 25 30 35 40 0 0.25 0.5 0.75 1 200 100 0 100 200 RUN/SS PIN VOLTAGE (V) BOOST DIODE CURRENT (A) FB PIN ERROR VOLTAGE (mV) 3682 G19 3682 G20 3682 G21
Minimum Input Voltage Minimum Input Voltage Maximum VIN for Full Frequency
5 6.5 40 35 4.5 6 30 4 5.5 TA = 85˚C 25 TAGE (V) TAGE (V) (V) 3.5 INV 20 5 TA = 25˚C 3 INPUT VOL INPUT VOL 15 VOUT = 3.3V 4.5 2.5 V V L = 10μH OUT = 3.3V OUT = 5V 10 L = 10μH L = 10μH f = 800kHz f = 800kHz f = 800kHz SYNC = 3.3V 2 4 5 1 10 100 1000 1 10 100 1000 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 LOAD CURRENT (mA) LOAD CURRENT (mA) LOAD CURRENT(A) 3682 G23 3682 G24 3682 G22
Maximum VIN for Full Frequency Maximum VIN for Full Frequency VC Voltages
40 40 2.5 35 35 TA = 25˚C 2 30 30 CURRENT LIMIT CLAMP TA = 85˚C 1.5 25 TA = 85˚C 25 (V) (V) IN IN TAGE (V) V 20 V 20 VOL 1 T C A = 25˚C V SWITCHING THRESHOLD 15 15 VOUT = 5V VOUT = 5V L = 10μH L = 4.7μH 0.5 10 10 f = 800kHz f = 2MHz SYNC = 5V SYNC =5V 5 5 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 50 25 0 25 50 75 100 125 LOAD CURRENT(A) LOAD CURRENT(A) TEMPERATURE(°C) 3682 G25 3682 G26 3682 G27 3682f 6