Datasheet LT1300 - 3
| Beschreibung | Micropower High Efficiency 3.3/5V Step-Up DC/DC Converter |
| Seiten / Seite | 8 / 3 — TYPICAL PERFORMANCE CHARACTERISTICS. Total Quiescent Current. Efficiency. … |
| Dateiformat / Größe | PDF / 230 Kb |
| Dokumentensprache | Englisch |
TYPICAL PERFORMANCE CHARACTERISTICS. Total Quiescent Current. Efficiency. No-Load Battery Current. in Shutdown
Textversion des Dokuments
LT1300
W U TYPICAL PERFORMANCE CHARACTERISTICS Total Quiescent Current Efficiency No-Load Battery Current in Shutdown
88 170 80 VOUT = 3.3V 86 L = 10µH 165 V 70 84 OUT = 5V 160 82 60 V 155 (µA) IN = 3V 80 VIN = 2.5V 50 150 SENSE 78 VIN = 2V 145 + I 40 76 VOUT = 3.3V VIN 140 74 EFFICIENCY (%) + I 30 72 INPUT CURRENT (µA) 135 I SHDN 20 70 130 10 68 125 66 120 0 1 10 100 1000 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 0 1 2 3 4 5 6 7 8 LOAD CURRENT (mA) INPUT VOLTAGE (V) INPUT VOLTAGE (V) LT1300 G1 LT1300 G2 LT1300 G3
Maximum Output Current Shutdown Pin Bias Current V vs Input Voltage CESAT vs ISW
20 250 700 T VOUT = 5V, 18 A = 25°C 225 I 600 LIM FLOATING 16 200 L = 22µH 14 175 500 COILCRAFT 12 150 DO3316-223 L = 10µH (mV) 400 10 125 COILCRAFT DO1608-103 CESAT 8 300 V 100 6 75 200 OUTPUT CURRENT (mA) SHUTDOWN CURRENT (µA) 4 50 100 2 25 0 0 0 0 1 2 3 4 5 6 7 8 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.5 2 2.5 3 3.5 4 4.5 SHUTDOWN VOLTAGE (V) SWITCH CURRENT (A) INPUT VOLTAGE (V) LT1300 G4 LT1300 G5 LT1300 G6
Maximum Output Current Transient Response vs Input Voltage VIN = 2V, VOUT = 5V Startup Response
900 VOUT = 3.3V VOUT 800 ILIM FLOATING 100mV/DIV VOUT AC COUPLED 700 1V/DIV 600 L = 10µH 200mA ILOAD VSHDN 500 0 10V/DIV 400 200 300 µs/DIV 500µs/DIV LT1300 G8 LT1300 G9 LOAD CURRENT (mA) VOUT = 5V 200 RLOAD = 20Ω 100 0 1.5 2 2.5 3 3.5 INPUT VOLTAGE (V) LT1300 G7 3
W U TYPICAL PERFORMANCE CHARACTERISTICS Total Quiescent Current Efficiency No-Load Battery Current in Shutdown
88 170 80 VOUT = 3.3V 86 L = 10µH 165 V 70 84 OUT = 5V 160 82 60 V 155 (µA) IN = 3V 80 VIN = 2.5V 50 150 SENSE 78 VIN = 2V 145 + I 40 76 VOUT = 3.3V VIN 140 74 EFFICIENCY (%) + I 30 72 INPUT CURRENT (µA) 135 I SHDN 20 70 130 10 68 125 66 120 0 1 10 100 1000 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 0 1 2 3 4 5 6 7 8 LOAD CURRENT (mA) INPUT VOLTAGE (V) INPUT VOLTAGE (V) LT1300 G1 LT1300 G2 LT1300 G3
Maximum Output Current Shutdown Pin Bias Current V vs Input Voltage CESAT vs ISW
20 250 700 T VOUT = 5V, 18 A = 25°C 225 I 600 LIM FLOATING 16 200 L = 22µH 14 175 500 COILCRAFT 12 150 DO3316-223 L = 10µH (mV) 400 10 125 COILCRAFT DO1608-103 CESAT 8 300 V 100 6 75 200 OUTPUT CURRENT (mA) SHUTDOWN CURRENT (µA) 4 50 100 2 25 0 0 0 0 1 2 3 4 5 6 7 8 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.5 2 2.5 3 3.5 4 4.5 SHUTDOWN VOLTAGE (V) SWITCH CURRENT (A) INPUT VOLTAGE (V) LT1300 G4 LT1300 G5 LT1300 G6
Maximum Output Current Transient Response vs Input Voltage VIN = 2V, VOUT = 5V Startup Response
900 VOUT = 3.3V VOUT 800 ILIM FLOATING 100mV/DIV VOUT AC COUPLED 700 1V/DIV 600 L = 10µH 200mA ILOAD VSHDN 500 0 10V/DIV 400 200 300 µs/DIV 500µs/DIV LT1300 G8 LT1300 G9 LOAD CURRENT (mA) VOUT = 5V 200 RLOAD = 20Ω 100 0 1.5 2 2.5 3 3.5 INPUT VOLTAGE (V) LT1300 G7 3