米6体育平台手机版

ZHCSRY0M april 2000 – may 2023 LM2676

PRODUCTION DATA

6.10 Typical Characteristics

Figure 6-1 Normalized Output Voltage

Figure 6-3 Efficiency versus Input Voltage

Figure 6-5 Switch Current Limit

Figure 6-7 Standby Quiescent Current

Figure 6-9 ON/ OFF Pin Current (Sourcing)

Figure 6-11 Feedback Pin Bias Current

Discontinuous Mode Switching Waveforms V_IN = 20 V, V_OUT = 5 V, I_LOAD = 500 mA L = 10 µH, C_OUT = 400 µF, C_OUTESR = 13 mΩ
A: V_SW Pin Voltage, 10 V/div.
B: Inductor Current, 1 A/div
C: Output Ripple Voltage, 20 mV/div AC-Coupled

Figure 6-13 Horizontal Time Base: 1 µs/div

Load Transient Response for Discontinuous Mode V_IN = 20 V, V_OUT = 5 V, L = 10 µH, C_OUT = 400 µF, C_OUTESR = 13 mΩ
A: Output Voltage, 100 mV/div, AC-Coupled
B: Load Current: 200-mA to 3-A Load Pulse

Figure 6-15 Horizontal Time Base: 200 µs/div

Figure 6-2 Line Regulation

Figure 6-4 Efficiency versus I_LOAD

Figure 6-6 Operating Quiescent Current

Figure 6-8 ON/OFF Threshold Voltage

Figure 6-10 Switching Frequency

Continuous Mode Switching Waveforms V_IN = 20 V, V_OUT = 5 V, I_LOAD = 3 A L = 33 µH, C_OUT = 200 µF, C_OUTESR = 26 mΩ
A: V_SW Pin Voltage, 10 V/div.
B: Inductor Current, 1 A/div
C: Output Ripple Voltage, 20 mV/div AC-Coupled

Figure 6-12 Horizontal Time Base: 1 µs/div

Load Transient Response for Continuous Mode V_IN = 20 V, V_OUT = 5 V L = 33 µH, C_OUT = 200 µF, C_OUTESR = 26 mΩ
A: Output Voltage, 100 mV//div, AC-Coupled.
B: Load Current: 500-mA to 3-A Load Pulse

Figure 6-14 Horizontal Time Base: 100 µs/div