SNVSAX8 Data sheet

SNVSAX8A April 2018 – June 2025 LM3478Q-Q1

PRODUCTION DATA

5.6 Typical Characteristics

Unless otherwise specified, V_IN = 12V, T_J = 25°C.

Figure 5-1 I_Q vs Input Voltage (Shutdown)

Figure 5-3 I_Supply vs V_IN (Switching)

Figure 5-5 Frequency vs Temperature

Figure 5-7 Current Sense Threshold vs Input Voltage

Figure 5-9 Efficiency vs Load Current (3.3-V Input and 12-V Output)

Figure 5-11 Efficiency vs Load Current (9-V Input and 12-V Output)

Figure 5-13 Error Amplifier Gain

Figure 5-15 COMP Pin Source Current vs Temperature

Figure 5-17 Compensation Ramp vs Compensation Resistor

Figure 5-19 Duty Cycle vs Current Sense Voltage

Figure 5-2 I_Supply vs Input Voltage (Non-Switching)

Figure 5-4 Switching Frequency vs R_FA

Figure 5-6 Drive Voltage vs Input Voltage

Figure 5-8 COMP Pin Voltage vs Load Current

Figure 5-10 Efficiency vs Load Current (5-V Input and 12-V Output)

Figure 5-12 Efficiency vs Load Current (3.3-V Input and 5-V Output)

Figure 5-14 Error Amplifier Phase

Figure 5-16 Short Circuit Sense Voltage vs Input Voltage

Figure 5-18 Shutdown Threshold Hysteresis vs Temperature