Datasheet LTC1624 (Analog Devices) - 3
| Manufacturer | Analog Devices |
| Description | High Efficiency SO-8 N-Channel Switching Regulator Controller |
| Pages / Page | 28 / 3 — TYPICAL PERFORMANCE CHARACTERISTICS. Efficiency vs Load Current. … |
| File Format / Size | PDF / 413 Kb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Efficiency vs Load Current. Efficiency vs Input Voltage. VOUT = 3.3V. VOUT = 5V
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LTC1624
W U TYPICAL PERFORMANCE CHARACTERISTICS Efficiency vs Load Current Efficiency vs Input Voltage Efficiency vs Load Current VOUT = 3.3V VOUT = 3.3V VOUT = 5V
100 100 100 V V OUT = 3.3V OUT = 3.3V VOUT = 5V R R SENSE = 0.033Ω SENSE = 0.033Ω V 95 VIN = 5V 95 95 IN = 10V RSENSE = 0.033Ω 90 VIN = 10V 90 90 ILOAD = 1A 85 85 85 ILOAD = 0.1A EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 80 80 80 75 75 75 70 70 70 0.001 0.01 0.1 1 10 0 5 10 15 20 25 30 0.001 0.01 0.1 1 10 LOAD CURRENT (A) INPUT VOLTAGE (V) LOAD CURRENT (A) 1624 G07 1624 G08 1624 G09
Efficiency vs Input Voltage V Input Supply Current vs IN – VOUT Dropout Voltage VOUT = 5V vs Load Current Input Voltage
100 0.7 700 VOUT = 5V RSENSE = 0.033Ω VFB = 1.21V RSENSE = 0.033Ω 0.6 VOUT DROP OF 5% 600 95 SLEEP MODE ILOAD = 1A 0.5 µA) 500 90 (V) 0.4 400 OUT 85 – V 0.3 300 ILOAD = 0.1A INV EFFICIENCY (%) 80 0.2 SUPPLY CURRENT ( 200 75 0.1 100 SHUTDOWN 70 0 0 0 5 10 15 20 25 30 0 0.5 1.0 1.5 2.0 2.5 3.0 0 5 10 15 20 25 30 35 INPUT VOLTAGE (V) LOAD CURRENT (A) INPUT VOLTAGE (V) 1624 G10 1624 G11 1624 G05
Boost Line Regulation Boost Load Regulation Boost Voltage vs Temperature
6 6 6.0 I V LOAD = 1mA IN = 15V 5 5 5.5 VIN = 5V 4 4 3 3 5.0 2 2 BOOST VOLTAGE (V) BOOST VOLTAGE (V) BOOST VOLTAGE (V) 4.5 1 I 1 BOOST = 1mA VSW = 0V VSW = 0V 0 0 4.0 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 –40 –15 10 35 60 85 110 135 INPUT VOLTAGE (V) BOOST LOAD CURRENT (mA) TEMPERATURE (°C) 1624 G04 1624 G06 1624 G15 3
W U TYPICAL PERFORMANCE CHARACTERISTICS Efficiency vs Load Current Efficiency vs Input Voltage Efficiency vs Load Current VOUT = 3.3V VOUT = 3.3V VOUT = 5V
100 100 100 V V OUT = 3.3V OUT = 3.3V VOUT = 5V R R SENSE = 0.033Ω SENSE = 0.033Ω V 95 VIN = 5V 95 95 IN = 10V RSENSE = 0.033Ω 90 VIN = 10V 90 90 ILOAD = 1A 85 85 85 ILOAD = 0.1A EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 80 80 80 75 75 75 70 70 70 0.001 0.01 0.1 1 10 0 5 10 15 20 25 30 0.001 0.01 0.1 1 10 LOAD CURRENT (A) INPUT VOLTAGE (V) LOAD CURRENT (A) 1624 G07 1624 G08 1624 G09
Efficiency vs Input Voltage V Input Supply Current vs IN – VOUT Dropout Voltage VOUT = 5V vs Load Current Input Voltage
100 0.7 700 VOUT = 5V RSENSE = 0.033Ω VFB = 1.21V RSENSE = 0.033Ω 0.6 VOUT DROP OF 5% 600 95 SLEEP MODE ILOAD = 1A 0.5 µA) 500 90 (V) 0.4 400 OUT 85 – V 0.3 300 ILOAD = 0.1A INV EFFICIENCY (%) 80 0.2 SUPPLY CURRENT ( 200 75 0.1 100 SHUTDOWN 70 0 0 0 5 10 15 20 25 30 0 0.5 1.0 1.5 2.0 2.5 3.0 0 5 10 15 20 25 30 35 INPUT VOLTAGE (V) LOAD CURRENT (A) INPUT VOLTAGE (V) 1624 G10 1624 G11 1624 G05
Boost Line Regulation Boost Load Regulation Boost Voltage vs Temperature
6 6 6.0 I V LOAD = 1mA IN = 15V 5 5 5.5 VIN = 5V 4 4 3 3 5.0 2 2 BOOST VOLTAGE (V) BOOST VOLTAGE (V) BOOST VOLTAGE (V) 4.5 1 I 1 BOOST = 1mA VSW = 0V VSW = 0V 0 0 4.0 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 –40 –15 10 35 60 85 110 135 INPUT VOLTAGE (V) BOOST LOAD CURRENT (mA) TEMPERATURE (°C) 1624 G04 1624 G06 1624 G15 3
