Datasheet LTC3445 (Analog Devices) - 7
| Hersteller | Analog Devices |
| Beschreibung | I²C Controllable Buck Regulator with Two LDOs in a 4mm × 4mm QFN |
| Seiten / Seite | 24 / 7 — TYPICAL PERFOR A CE CHARACTERISTICS. LDO Reference Voltage. vs … |
| Dateiformat / Größe | PDF / 486 Kb |
| Dokumentensprache | Englisch |
TYPICAL PERFOR A CE CHARACTERISTICS. LDO Reference Voltage. vs Temperature. vs Load Current. LDO Output Voltage vs VCC2
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LTC3445
W U TYPICAL PERFOR A CE CHARACTERISTICS LDO Reference Voltage LDO Reference Voltage vs Temperature vs Load Current LDO Output Voltage vs VCC2
0.604 0.608 1.202 0.602 1.201 0.606 0.600 1.200 0mA 0.604 0.598 1.199 10mA 0.596 0.602 VCC2 = 2.5V 1.198 V 50mA CC2 = 5.5V 0.594 1.197 0.600 0.592 LDO OUTPUT VOLTAGE (V) 1.196 LDO REFERENCE VOLTAGE (V) LDO REFERENCE VOLTAGE (V) 0.598 0.590 1.195 0.498 0.596 1.194 –50 –25 0 25 50 75 100 125 150 0 10 20 30 40 50 60 70 80 2.5 3.1 3.7 4.3 4.9 5.5 TEMPERATURE (°C) LOAD CURRENT (mA) VCC2 (V) 3445 G22 3445 G23 3445 G24
LDO Output Voltage LDO Output Voltage vs Load Current vs Load Current
2.590 1.204 2.588 1.202 2.586 2.584 1.200 2.582 VCC2 = 5.5V VCC2 = 5.5V 1.198 2.580 VCC2 = 3.6V VCC2 = 2.5V 2.578 LDO OUTPUT VOLTAGE (V) LDO OUTPUT VOLTAGE (V) 1.196 2.576 2.574 1.194 0 10 20 30 40 50 60 70 80 0 10 20 30 40 50 60 LOAD CURRENT (mA) LOAD CURRENT (mA) 3445 G25 3445 G26
LDO Dropout Voltage vs Load Current LDO Load Step (10mA to 40mA)
200 –50°C 25°C 150°C 160 LDO OUTPUT 20mV/DIV 120 LOAD CURRENT 80 20mA/DIV LDO DROPOUT VOLTAGE (mV) 40 40µs/DIV 3445 G29 0 0 10 20 30 40 50 LOAD CURRENT (mA) 3445 G28 3445fa 7
W U TYPICAL PERFOR A CE CHARACTERISTICS LDO Reference Voltage LDO Reference Voltage vs Temperature vs Load Current LDO Output Voltage vs VCC2
0.604 0.608 1.202 0.602 1.201 0.606 0.600 1.200 0mA 0.604 0.598 1.199 10mA 0.596 0.602 VCC2 = 2.5V 1.198 V 50mA CC2 = 5.5V 0.594 1.197 0.600 0.592 LDO OUTPUT VOLTAGE (V) 1.196 LDO REFERENCE VOLTAGE (V) LDO REFERENCE VOLTAGE (V) 0.598 0.590 1.195 0.498 0.596 1.194 –50 –25 0 25 50 75 100 125 150 0 10 20 30 40 50 60 70 80 2.5 3.1 3.7 4.3 4.9 5.5 TEMPERATURE (°C) LOAD CURRENT (mA) VCC2 (V) 3445 G22 3445 G23 3445 G24
LDO Output Voltage LDO Output Voltage vs Load Current vs Load Current
2.590 1.204 2.588 1.202 2.586 2.584 1.200 2.582 VCC2 = 5.5V VCC2 = 5.5V 1.198 2.580 VCC2 = 3.6V VCC2 = 2.5V 2.578 LDO OUTPUT VOLTAGE (V) LDO OUTPUT VOLTAGE (V) 1.196 2.576 2.574 1.194 0 10 20 30 40 50 60 70 80 0 10 20 30 40 50 60 LOAD CURRENT (mA) LOAD CURRENT (mA) 3445 G25 3445 G26
LDO Dropout Voltage vs Load Current LDO Load Step (10mA to 40mA)
200 –50°C 25°C 150°C 160 LDO OUTPUT 20mV/DIV 120 LOAD CURRENT 80 20mA/DIV LDO DROPOUT VOLTAGE (mV) 40 40µs/DIV 3445 G29 0 0 10 20 30 40 50 LOAD CURRENT (mA) 3445 G28 3445fa 7