IKSEMI高压三端稳压器IL2576HV-12D2T-P-奥伟斯 - 图文 

6.5 Electrical Characteristics: 3.3 V

Specifications are for TJ = 25°C (unless otherwise noted). TEST CONDITIONS SYSTEM PARAMETERS TEST CIRCUIT Figure 26 and Figure 32(1) Output Voltage PARAMETER MIN TYP MAX UNIT 3.234 3.3 3.366 VIN = 12 V, ILOAD = 0.5 A Circuit of Figure 26 and Figure 32 6 V ≤ VIN ≤ 40 V, 0.5 A ≤ ILOAD ≤ 3 A Figure 32 6 V ≤ VIN ≤ 60 V, 0.5 A ≤ ILOAD ≤ 3 A Figure 32 VIN = 12 V, ILOAD = 3 A Circuit of Figure 26 and Circuit of Figure 26 and V Output Voltage: LM2576 TJ = 25°C Applies over full operating 3.168 3.135 3.3 3.432 3.465 V V OUT Output Voltage: LM2576HV temperature range TJ = 25°C Applies over full operating 3.168 3.135 3.3 3.45 3.482 V η Efficiency temperature range 75% （1）外部元件（例如钳位二极管，电感器，输入和输出电容器）会影响开关稳压器系统的性能。 如图26和图32所示使用LM2576 / LM2576HV时，系统性能如电气特性：所有输出电压版本中所示。

6.6 Electrical Characteristics: 5 V

Specifications are for TJ = 25°C for the Figure 26 and Figure 32 (unless otherwise noted). TEST CONDITIONS SYSTEM PARAMETERS TEST CIRCUIT Figure 26 and Figure 32(1) VIN = 12 V, ILOAD = 0.5 A VOUT Output Voltage Circuit of Figure 26 and Figure 32 VOUT PARAMETER MIN TYP MAX UNIT 4.9 4.8 5 5 5.1 5.2 5.25 V V Output Voltage LM2576 0.5 A ≤ ILOAD ≤ 3 A, 8 V ≤ VIN ≤ 40 V VOUT Circuit of Figure 26 and Figure 32 0.5 A ≤ ILOAD ≤ 3 A, 8 V ≤ VIN ≤ 60 V TJ = 25°C Applies over full operating temperature range TJ = 25°C Applies over full operating temperature range 4.75 4.8 5.225 Output Voltage LM2576HV Efficiency 5 4.75 5.275 V η Circuit of Figure 26 and Figure 32 VIN = 12 V, ILOAD = 3 A 77% （1）外部元件（例如钳位二极管，电感器，输入和输出电容器）会影响开关稳压器系统的性能。 如图26和图32所示使用LM2576 / LM2576HV时，系统性能如电气特性：所有输出电压版本中所示。

6.7 Electrical Characteristics: 12 V

Specifications are for TJ = 25°C (unless otherwise noted). TEST CONDITIONS SYSTEM PARAMETERS TEST CIRCUIT Figure 26 and Figure 32(1) VIN = 25 V, ILOAD = 0.5 A VOUT Output Voltage Circuit of Figure 26 and Figure 32 PARAMETER MIN TYP MAX UNIT 11.76 12 12.24 V V VOUT Output Voltage LM2576 0.5 A ≤ ILOAD ≤ 3 A, 15 V ≤ VIN ≤ 40 V Circuit of Figure 26 and Figure 32 and 0.5 A ≤ ILOAD ≤ 3 A, 15 V ≤ VIN ≤ 60 V TJ = 25°C Applies over full operating temperature range TJ = 25°C Applies over full operating temperature range 11.52 12 12.48 12.6 11.4 11.52 11.4 VOUT Output Voltage LM2576HV 12 88% 12.54 12.66 V η Efficiency Circuit of Figure 26 and Figure 32 VIN = 15 V, ILOAD = 3 A (1) 外部元件（例如钳位二极管，电感器，输入和输出电容器）会影响开关稳压器系统的性能。 如图26和图32所示使用LM2576 /

LM2576HV时，系统性能如电气特性：所有输出电压版本中所示。

6.8 Electrical Characteristics: 15 V

PARAMETER over operating free-air temperature range (unless otherwise noted). TEST CONDITIONS SYSTEM PARAMETERS TEST CIRCUIT Figure 26 and Figure 32(1) VIN = 25 V, ILOAD = 0.5 A VOUT Output Voltage Circuit of Figure 26 and Figure 32 VOUT MIN TYP MAX UNIT 14.7 14.4 15 15 15.3 15.6 15.75 V V Output Voltage LM2576 0.5 A ≤ ILOAD ≤ 3 A, 18 V ≤ VIN ≤ 40 V Circuit of Figure 26 and Figure 32 0.5 A ≤ ILOAD ≤ 3 A, 18 V ≤ VIN ≤ 60 V TJ = 25°C Applies over full operating temperature range TJ = 25°C Applies over full operating temperature range 14.25 14.4 15.68 VOUT Output Voltage LM2576HV Efficiency 15 14.25 15.83 V η Circuit of Figure 26 and Figure 32 VIN = 18 V, ILOAD = 3 A 88% （1）外部元件（例如钳位二极管，电感器，输入和输出电容器）会影响开关稳压器系统的性能。 如图26和图32所示使用LM2576 / LM2576HV时，系统性能如电气特性：所有输出电压版本中所示。

6.9 Electrical Characteristics: Adjustable Output Voltage

over operating free-air temperature range (unless otherwise noted). TEST CONDITIONS SYSTEM PARAMETERS TEST CIRCUIT Figure 26 and Figure 32(1) VIN = 12 V, ILOAD = 0.5 A VOUT Feedback voltage VOUT = 5 V, Circuit of Figure 26 and Figure 32 PARAMETER MIN TYP MAX UNIT 1.193 1.217 1.18 1.23 1.243 V VOUT Feedback Voltage LM2576 0.5 A ≤ ILOAD ≤ 3 A, 8 V ≤ VIN ≤ 40 V VOUT = 5 V, Circuit of VOUT Figure 26 and Figure 32 Feedback Voltage LM2576HV Efficiency 0.5 A ≤ ILOAD ≤ 3 A, 8 V ≤ VIN ≤ 60 V TJ = 25°C Applies over full operating temperature range TJ = 25°C Applies over full operating temperature range 1.23 1.267 1.28 V 1.193 1.18 1.23 1.273 1.286 V VOUT = 5 V, Circuit of η Figure 26 and Figure 32 VIN = 12 V, ILOAD = 3 A, VOUT = 5 V 77% (1) External components such as the catch diode, inductor, input and output capacitors can affect switching regulator system performance.

When the LM2576/LM2576HV is used as shown in Figure 26 and Figure 32, system performance is as shown in Electrical Characteristics: All Output Voltage Versions.

6.10 Electrical Characteristics: All Output Voltage Versions

over operating free-air temperature range (unless otherwise noted) TEST CONDITIONS SYSTEM PARAMETERS TEST CIRCUIT Figure 26 and Figure 32(2) PARAMETER MIN TYP(1) MAX UNIT 100 Ib Feedback Bias Current VOUT = 5 V (Adjustable Version Only) TJ = 25°C Applies over full operating temperature range 50 nA 500 fO Oscillator Frequency(3) TJ = 25°C 47 42 52 58 63 kHz Applies over full operating temperature range (1) 除非另有说明，否则所有规定的限值均在室温（25°C）下进行。 所有室温限制均经过100％生产测试。 使用标准统计质量控制

（SQC）方法，通过相关性指定了极端温度下的所有限制。 (2)

(3) 外部元件（例如钳位二极管，电感器，输入和输出电容器）会影响开关稳压器系统的性能。 如图26和图32所示使用LM2576 /

LM2576HV时，系统性能如电气特性：所有输出电压版本中所示。 (4)

(5) 在输出短路或过载的情况下，振荡器频率降低至大约11 kHz，这会导致调节后的输出电压从标称输出电压下降大约40％。 这种自我

保护功能通过将最小占空比从5％降低到大约2％，降低了IC的平均功耗。

Electrical Characteristics: All Output Voltage Versions (continued)

over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP(1) 1.4 MAX UNIT 1.8 2 V VSAT Saturation Voltage IOUT = 3 A (4) TJ = 25°C Applies over full operating DC I Max Duty Cycle (ON)(5) Current Limit(4)(3) temperature range 93% 4.2 98% 5.8 CL C TJ = 25° 6.9 7.5 IL I Q Applies over full operating temperature range Output = 0 V Output Leakage Current Output = ?1 V (6)(7) Output = ?1 V 3.5 2 A mA mA μA 7.5 5 50 30 10 Quiescent Current(6) ISTBY Standby Quiescent Current ON /OFF Pin = 5 V (OFF) 200 ON /OFF CONTROL TEST CIRCUIT Figure 26 and Figure 32 TJ = 25°C Applies over full operating 2.2 2.4 1.4 VIH VOUT = 0 V V ON /OFF Pin V Logic Input Level VOUT = Nominal Output temperature range TJ = 25°C Applies over full operating IL Voltage 1.2 1 0.8 V I IH temperature range 12 0 30 10 μA μA IIL ON /OFF Pin Input ON /OFF Pin = 5 V (OFF) Current ON /OFF Pin = 0 V (ON) （4）输出引脚拉电流。 没有二极管，电感器或电容器连接到输出。 （5）反馈引脚已从输出端移出并连接到0V。

（6）反馈引脚已从输出端移除，并针对可调，3.3V和5V版本连接至+12 V，对于12V和15V版本连接至+25 V，以强制输出晶体管截止。 （7）VIN = 40 V（对于高压版本为60 V）。

6.11 Typical Characteristics

(Circuit of Figure 26 and Figure 32)

Figure 1. Normalized Output Voltage Figure 2. Line Regulation

Figure 3. Dropout Voltage Figure 4. Current Limit

Figure 5. Quiescent Current Figure 6. Standby Quiescent Current

Typical Characteristics (continued)

(Circuit of Figure 26 and Figure 32) Figure 11. Quiescent Current versus Duty Cycle

Figure 12. Feedback Voltage versus Duty Cycle

Figure 7. Oscillator Frequency

Figure 8. Switch Saturation Voltage

Figure 10. Minimum Operating Voltage

Figure 9. Efficiency