Datasheet LT1573 (Analog Devices) - 3
| Hersteller | Analog Devices |
| Beschreibung | Low Dropout PNP Regulator Driver |
| Seiten / Seite | 16 / 3 — ELECTRICAL CHARACTERISTICS The. denotes specifications that apply over … |
| Dateiformat / Größe | PDF / 183 Kb |
| Dokumentensprache | Englisch |
ELECTRICAL CHARACTERISTICS The. denotes specifications that apply over the full operating temperature
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LT1573
ELECTRICAL CHARACTERISTICS The
●
denotes specifications that apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. VIN = 5V, VDRIVE = 3V, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS
LATCH Pin Latch-Off Threshold Voltage ● 0.8 1.4 2.2 V LATCH Pin Charging Current 7 µA LATCH Pin Latching Current 0.65 mA VIN – VOUT Differential Threshold for Latch Disable ● 0.4 0.7 1.0 V Input Quiescent Current VIN = 7V ● 1.7 3.5 mA Minimum Input Voltage for Bias Operation ● 2.8 V
Note 1:
Absolute Maximum Ratings are those values beyond which the life not apply for all possible combinations of input voltage, drive voltage and of the device may be impaired. drive current. When operating at maximum drive current, the drive voltage
Note 2:
Operating conditions are limited by maximum junction range must be limited. When operating at maximum input and drive temperature. The regulated feedback or output voltage specification will voltage, the drive current must be limited.
W U TYPICAL PERFOR A CE CHARACTERISTICS LT1573 Feedback Pin Voltage LT1573-3.3V Output Voltage LT1573-2.8V Output Voltage vs Temperature vs Temperature vs Temperature
1.290 3.40 2.90 1.285 3.38 2.88 1.280 3.36 2.86 1.275 3.34 2.84 1.270 3.32 2.82 1.265 3.30 2.80 1.260 3.28 2.78 1.255 OUTPUT VOLTAGE (V) 3.26 OUTPUT VOLTAGE (V) 2.76 FEEDBACK PIN VOLTAGE (V) 1.250 3.24 2.74 1.245 3.22 2.72 1.240 3.20 2.70 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 1573 G01 1573 G02 1573 G03
LT1573-2.5V Output Voltage Feedback Pin Bias Current Quiescent Current vs Temperature vs Temperature vs Temperature
2.60 2.5 3.0 2.58 2.5 2.56 A) 2.0 µ 2.54 2.0 2.52 1.5 2.50 1.5 2.48 1.0 1.0 OUTPUT VOLTAGE (V) 2.46 QUIESCENT CURRENT (mA) 2.44 FEEDBACK PIN CURRENT ( 0.5 0.5 2.42 2.40 0 0 –50 –25 0 25 50 75 100 125 –50 100 125 –50 –25 0 25 50 75 150 –25 0 25 50 75 100 125 150 TEMPERATURE ( TEMPERATURE ( °C) TEMPERATURE ( °C) °C) 1573 G04 1573 G06 1573 G05 sn1573 1573fas 3
ELECTRICAL CHARACTERISTICS The
●
denotes specifications that apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. VIN = 5V, VDRIVE = 3V, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS
LATCH Pin Latch-Off Threshold Voltage ● 0.8 1.4 2.2 V LATCH Pin Charging Current 7 µA LATCH Pin Latching Current 0.65 mA VIN – VOUT Differential Threshold for Latch Disable ● 0.4 0.7 1.0 V Input Quiescent Current VIN = 7V ● 1.7 3.5 mA Minimum Input Voltage for Bias Operation ● 2.8 V
Note 1:
Absolute Maximum Ratings are those values beyond which the life not apply for all possible combinations of input voltage, drive voltage and of the device may be impaired. drive current. When operating at maximum drive current, the drive voltage
Note 2:
Operating conditions are limited by maximum junction range must be limited. When operating at maximum input and drive temperature. The regulated feedback or output voltage specification will voltage, the drive current must be limited.
W U TYPICAL PERFOR A CE CHARACTERISTICS LT1573 Feedback Pin Voltage LT1573-3.3V Output Voltage LT1573-2.8V Output Voltage vs Temperature vs Temperature vs Temperature
1.290 3.40 2.90 1.285 3.38 2.88 1.280 3.36 2.86 1.275 3.34 2.84 1.270 3.32 2.82 1.265 3.30 2.80 1.260 3.28 2.78 1.255 OUTPUT VOLTAGE (V) 3.26 OUTPUT VOLTAGE (V) 2.76 FEEDBACK PIN VOLTAGE (V) 1.250 3.24 2.74 1.245 3.22 2.72 1.240 3.20 2.70 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 1573 G01 1573 G02 1573 G03
LT1573-2.5V Output Voltage Feedback Pin Bias Current Quiescent Current vs Temperature vs Temperature vs Temperature
2.60 2.5 3.0 2.58 2.5 2.56 A) 2.0 µ 2.54 2.0 2.52 1.5 2.50 1.5 2.48 1.0 1.0 OUTPUT VOLTAGE (V) 2.46 QUIESCENT CURRENT (mA) 2.44 FEEDBACK PIN CURRENT ( 0.5 0.5 2.42 2.40 0 0 –50 –25 0 25 50 75 100 125 –50 100 125 –50 –25 0 25 50 75 150 –25 0 25 50 75 100 125 150 TEMPERATURE ( TEMPERATURE ( °C) TEMPERATURE ( °C) °C) 1573 G04 1573 G06 1573 G05 sn1573 1573fas 3