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SP6205ER-2.5 Datasheet(PDF) 3 Page - Sipex Corporation |
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SP6205ER-2.5 Datasheet(HTML) 3 Page - Sipex Corporation |
3 / 14 page 3 Date: 05/25/04 SP6203/6205 Low Noise, 300 and 500mA CMOS LDO Regulators © Copyright 2004 Sipex Corporation ELECTRICAL CHARACTERISTIC NOTES Note 1: Maximum power dissipation can be calculated using the formula: PD = (TJ(max) - TA) / θ θθ θ θJA, where TJ(max) is the junction temperature, TA is the ambient temperature and θJA is the junction-to-ambient thermal resistance. θJC is 6ºC/W for this package. Exceeding the maximum allowable power dissipation will result in excessive die temperature and thermal shutdown protection. For 5 Pin SOT-23 θJA is 191 °C/W and 59°C/W for the 8 Pin DFN. A part mounted on a PC board will deliver improved thermal perfformance based on copper surface area. Note 2: Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range. Note 3: Regulation is measured at constant junction temperature using low duty cycle pulse testing. Changes in output voltage due to heating effects are covered by the thermal regulation specification. Note 4: Dropout-voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value measured at 1V differential. Note 5: Ground pin current is the regulator quiescent current. The total current drawn from the supply is the sum of the load current plus the ground pin current. Note 6: Output noise voltage is defined within a certain bandwidth, namely 10Hz < BW < 100kHz. An external bypass cap (10nF) from reference output (BYP pin) to ground significantly reduces noise at output. Note 7: Thermal regulation is defined as the change in output voltage at a time “t” after a change in power dissipation is applied, excluding load and line regulation effects. Specifications are for a 300mA load pulse at VIN = 6V for t = 1ms. Note 8: The wake-up time (TWU) is defined as the time it takes for the output to start rising after enable is brought high. Note 9: The total turn-on time is called the settling time (TS), which is defined as the condition when both the output and the bypass node are within 2% of their fully enabled values when released from shutdown. Note 10: For output voltage versions requiring VIN to be lower than 4V, timing (TON & TOFF) increases slightly. (optional) Cbyp VOUT BYP EN VIN GND bandgap reference thermal shutdown & current limit 1.25V R2 R1 ADJ VOUT EN VIN GND bandgap reference thermal shutdown & current limit 1.25V Low Noise Fixed Regulator - 5 Pin Low Noise Adjustable Regulator - 5 Pin FUNCTIONAL DIAGRAM |
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