yanglupu LV.8 2 2008-04-04 18:48 不是一个意思,Q C是指LDO工作但不带负载时的电流.Stand-by的状况,是指把LDO旁路掉,能过电平的切换不让它工作,此时一般电流很小.0 回复
Quiescent current vs. input voltage and switching frequency. Iq [mA] 36 Co = 1nF, Tj = 25°C 30 DC = 100% 24 1MHz 18 500KHz 300KHz 12 100KHz 6 0 8 10 12 14 16 18 20 22 Vcc [V] Figure 7. Reference voltage vs. load current. Vref [V] 5.1 Figure 4. Q...
May I know what is SN75176B quiescent and shutdown/standby current at no load? This is to compare ISL8485's 500uA low quiescent current stated inside datasheet. Best regards, Gim Song
Miniature DC/DC step-down regulator features ultra-low noise and quiescent current standby mode
Figure 3. Efficiency vs load current for a new constant frequency monolithic regulator.LTC1771 Controller for Output Loads to 5AThe LTC1771 is a step-down controller that drives an external P-channel MOSFET for output loads up to 5A. Its low quiescent current and flexibl...
The LT8410/-1 high efficiency boost converter is ideal for these systems, requiring only 8.5μA of quiescent current in standby mode. The device integrates high value (12.4M/0.4M) output feedback resistors, significantly reducing input current when the output is in regulation with no lo...
Schematic of a DMOS unity-gain buffer This large-signal, high-power buffer must be capable of handling extremely high current and voltage levels while maintaining acceptably low harmonic distortion and good behaviour over frequency response; moreover, an accurate control of quiescent current is ...
Figure 1. L5991 - Quiescent current vs. input voltage. (X = 7.6V and Y= 8.4V for L5991A) 0 4 8 1 2 1 6 2 0 2 4 0 5 0 1 0 0 1 5 0 2 0 0 2 5 0 3 0 0 3 5 0 V c c [ V ] I q [ µ A ] V 1 4 = Vr e f T j = 2 5 °C X Y Figure 2. L5991...
In addition, UCC25640x operates in a low power mode during burst mode with a very low quiescent current and biased optocoupler operation with low current. UCC25640x monitors the half-bridge switch node to determine the required dead-time for the gate signals. In this way the dead-time is ...
(max) • THD+N at 1kHz at continuous average output power of 2 x 20W into 8Ω: 0.009% (typ) • Standby current: 4.2mA (typ) DESCRIPTION The LM1876 is a stereo audio amplifier capable of delivering typically 20W per channel of continuous average output power into a 4Ω or 8Ω ...