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CS5253B-1GDP5 Folha de dados(PDF) 3 Page - ON Semiconductor |
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CS5253B-1GDP5 Folha de dados(HTML) 3 Page - ON Semiconductor |
3 / 10 page CS5253B−1 http://onsemi.com 3 ELECTRICAL CHARACTERISTICS (continued) (0 °C ≤ TA ≤ 70°C; 0°C ≤ TJ ≤ 150°C; VSENSE = VOUT and VADJ = 0 V; unless otherwise specified.) Characteristic Test Conditions Min Typ Max Unit VCONTROL Dropout Voltage (Minimum VCONTROL − VOUT) (Note 5) VPOWER = 2.05 V, IOUT = 100 mA VPOWER = 2.05 V, IOUT = 1.0 A VPOWER = 2.05 V, IOUT = 3.0 A − − − 0.90 1.00 1.05 1.15 1.15 1.30 V V V VPOWER Dropout Voltage (Minimum VPOWER − VOUT) (Note 5) VCONTROL = 2.75 V, IOUT = 100 mA VCONTROL = 2.75 V, IOUT = 1.0 A VCONTROL = 2.75 V, IOUT = 3.0 A − − − 0.05 0.15 0.40 0.15 0.25 0.60 V V V RMS Output Noise Freq = 10 Hz to 10 kHz, TA = 25°C − 0.003 − %VOUT Temperature Stability − 0.5 − − % Thermal Shutdown (Note 6) − 150 180 210 °C Thermal Shutdown Hysteresis − − 25 − °C VCONTROL Supply Only Output Current VCONTROL = 13 V, VPOWER Not Connected, VADJ = VOUT = VSENSE = 0 V − − 50 mA VPOWER Supply Only Output Current VPOWER = 6.0 V, VCONTROL Not Connected, VADJ = VOUT = VSENSE = 0 V − 0.1 1.0 mA 5. Dropout is defined as either the minimum control voltage (VCONTROL) or minimum power voltage (VPOWER) to output voltage differential required to maintain 1.0% regulation at a particular load current. 6. This parameter is guaranteed by design, but not parametrically tested in production. However, a 100% thermal shutdown functional test is performed on each part. PACKAGE PIN DESCRIPTION Package Pin # Pin Symbol Function 1 VSENSE This Kelvin sense pin allows for remote sensing of the output voltage at the load for improved regulation. It is internally connected to the positive input of the voltage sensing error amplifier. 2 Adjust This pin is connected to the low side of the internally trimmed 1.0% bandgap reference voltage and carries a bias current of about 50 mA. A resistor divider from Adjust to VOUT and from Adjust to ground sets the output voltage. Also, transient response can be improved by adding a small bypass capacitor from this pin to ground. 3 VOUT This pin is connected to the emitter of the power pass transistor and provides a regulated voltage capable of sourcing 3.0 A of current. 4 VCONTRO L This is the supply voltage for the regulator control circuitry. For the device to regulate, this voltage should be be- tween 0.9 V and 1.3 V (depending on the output current) greater than the output voltage. The control pin current will be about 1.0% of the output current. 5 VPOWER This is the power input voltage. This pin is physically connected to the collector of the power pass transistor. For the device to regulate, this voltage should be between 0.1 V and 0.6 V greater than the output voltage depending on the output current. The output load current of 3.0 A is supplied through this pin. Figure 2. Block Diagram − + + − BIAS and TSD VREF EA IA VOUT VSENSE Adjust VPOWER VCONTROL |
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