Figure 14. 250mA Low Quiescent Current CMOS LDO DESCRIPTION TS9011 is a positive voltage regulator developed utilizing CMOS technology featured very low power consumption, low dropout voltage and high output voltage accuracy. 5 - Quiescent Current vs. The device is stable with a ceramic capacitor on the output. Quiescent current vs. supply voltage Figure 11. To test the quiescent current profile, I used the FastLog functionality to record the current profile. Supply Voltage *2 VCC 4.37 45.0 V Startup Voltage *3 VCC 3.0 - V Output Current IOUT 0 200 mA BD750L2EFJ/FP/FP3-C Parameter Symbol Min Max Unit Supply Voltage 5.8*2 VCC 45.0 V Startup 3.0Voltage *3 VCC - V Output Current IOUT 0 200 mA *2 For output voltage, refer to the dropout voltage corresponding to the output current. It seems to bottom out around 15V, but this is the current and not the power. Shutdown Current vs. Supply Voltage Figure 8. A 1µF or greater can be used as an output capacitor. Current, quiescent 6 10 mA Power Dissipation, quiescent 200V supply 1.2 2 W Parameter Test Conditions Min Typ Max Units Resistance, AC, junction to case F>60 Hz 1 °C/W Resistance, DC, junction to case F<60 Hz 1.25 °C/W Resistance, junction to air Full temperature range 13 °C/W Temperature Range, case Meet full range specs -40 +85 °C Input Voltage VOUT = 1.2V IOUT = 100µA COUT = 0.47µF. Quiescent Current vs. to the output current. When compared to a low quiescent current Voltage Regulator the benefits are even more evident and this will be especially useful for applications like Water and Gas Meters where long battery life has to be guaranteed by the designer. where Is+ is the current into the + supply terminal, Is- is the current out of the - supply terminal, Iq is the quiescent current specified in the datasheet, and Iout is the current flowing out of the output. ELECTRICAL CHARACTERISTICS (Refer to the Test Circuit, VS = ±18V, Tamb = 25°C, f = 1 kHz; un- less otherwise specified) Symbol Parameter Test Condition Min. The quiescent current of the converter seems to hover around 0.3mA with a slight dependence on voltage. The lower the output current is, the more quiescent current can impact the conversion efficiency. The total current drawn from the supply is the sum of the load current plus the ground pin current. • Short circuit current limit: This is the current drawn when the output voltage is … Dropout Voltage Part Number Package There have been a lot of questions raised on the difference between quiescent and shutdown current. Typ. 7 - Off Supply Current vs. The MCP1700 is capable of delivering 250 mA with Thermal shutdown (Output voltage vs. Note 6. Key LDO Performance Parameters 1. INPUT VOLTAGE (V) Ground Pin Current vs. Efficiency vs. Output Current (VOUT = 0.9 V, VIN = 3.6 V) Figure 10. Iddq testing uses the principle that in a correctly operating quiescent CMOS digital circuit , there is no static current path between the power supply and ground, except for a … Quiescent current vs. input voltage of the ADP160 LDO. They can be confused from time to time. This directly impacts the transistor-based regulator’s quiescent current. It is defined by I Q = IIN - IOUT under no load condition (IOUT = 0mA). Built in low on-resistor provides low dropout voltage and large output current. Figure 3. It offers very low quiescent current and extends battery-life of Standby attenuation vs. Vpin9 Figure 12. current while consuming only 1.6 µA of quiescent current (typical). 14-SOP . Impact of Quiescent Current When a power supply is in standby mode, power consumption is defined by quiescent current (I Q), which refers to a circuit’s quiet state, when it isn’t driving any load and its inputs aren’t cycling. Supply voltage rejection vs. frequency Figure 13. The voltage supply is 5.3V, common voltage at 2.5V. 6 - Reverse Blocking Current vs. Ultra Low Quiescent Current LDO Regulator BD7xxL5FP-C ... Total supply current vs. Load Figure 22. The key feature of this device is its quiescent current, which is just 1.4 µA at maximum output current. Temperature Fig. There is no load, no input signal and the output is linked on the negative input for each opamp. On the datasheet page 5, the typical quiescent current is 2.8mA per amplifier for Vs=5V On my circuit, I measured the quiescent current = 3.48mA with Vs=5.3V. Fig. Both quiescent current and dropout voltage contribute to the efficiency curve and an LDO. Efficiency vs. Output Current (VOUT = 1.8 V, VIN = 3.6 V) Figure 9. The high-current and low-output voltage-drop feature makes this device suitable for the PDP sustain pulse driver, motor driver, switching mode power supply, and high-power DC-DC converter applications. Quiescent Current vs. Shutdown Current There have been a lot of questions raised on the difference between quiescent and shutdown current. Input Voltage Fig. By comparison, the MOSFET pass element uses voltage driven on the isolated gate to make its quiescent current significantly lower than the transistor-based regulator. The input operating range is specified from 2.3V to 6.0V, making it an ideal choice for two and three primary cell battery-powered applications, as well as single cell Li-Ion-powered applications. Ordering Information. Quiescent Current vs. Shutdown Current. current with an input voltage range from 1.5 V to 5.5 V and a typical dropout voltage of 112 mV. Quiescent Current and Power vs Voltage. Quiescent, or ground current, is the difference between input and output currents. Unit VS Supply Voltage Range ±4.5 ±25 V Id Quiescent Drain Current VS = ±4.5V VS = ±25V 30 55 50 Power dissipation vs. output power (RL= 4 Ω) TDA7296 Typical characteristics DS0179 - Rev 11 page 9/23. So, for example, if Iq = 1mA and Iout = 3mA, then Is+ = 4mA and Is- = 1mA; if Iq = 1mA and Iout = -3mA then Is+ = 1mA and Is- = 4mA. The quiescent current of the ADP160 LDO is nearly constant as the input voltage varies between 2 V and 5.5 V, as shown in Figure 3. high-speed, low quiescent current, and tiny SOT23 packag-ing enable use in a variety of applications. Regulation is measured at constant junction temperature by using a 20ms current pulse. This is the current that electronic equipment draws when it is off but has some standby power supplying the sense circuits such as the PS On power in a computer power supply. Temperature Figure 7. Quiescent current, while nominal, can also substantially impact a system’s power transfer efficiency during light Quiescent current is only 60µA, which permits connecting the power supply to either side of Input common-mode and power-supply voltages are inde-pendent and can range from 2.7V to 40V for the INA139 and 2.7V to 60V for the INA169. The current consumed in the state is commonly called Iddq for Idd (quiescent) and hence the name. Quiescent Current 0.5μA Output Current 200mA 50mA PFM Switching Current 330mA 180mA ON Resistance P-Ch 0.5 (typ) Max. • Output capacitor range: This is the specified output capacitance the regulator is expected to accommodate without going unstable for a given load current range. Micrel, Inc. MIC5232 June 2012 2 M9999-061812-C … Ground current (I GND) is the difference between the input and output currents, and necessarily includes the quiescent current. The input current drawn by a power supply when shut down by a control input (remote inhibit) or under no load. high input supply voltages. Mute attenuation vs…
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