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LM2576D2T-005G 데이터시트(PDF) 3 Page - ON Semiconductor |
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LM2576D2T-005G 데이터시트(HTML) 3 Page - ON Semiconductor |
3 / 28 page LM2576 http://onsemi.com 3 OPERATING RATINGS (Operating Ratings indicate conditions for which the device is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics.) Rating Symbol Value Unit Operating Junction Temperature Range TJ −40 to +125 °C Supply Voltage Vin 40 V SYSTEM PARAMETERS (Note 1 Test Circuit Figure 15) ELECTRICAL CHARACTERISTICS (Unless otherwise specified, Vin = 12 V for the 3.3 V, 5.0 V, and Adjustable version, Vin = 25 V for the 12 V version, and Vin = 30 V for the 15 V version. ILoad = 500 mA. For typical values TJ = 25°C, for min/max values TJ is the operating junction temperature range that applies Note 2, unless otherwise noted.) Characteristics Symbol Min Typ Max Unit LM2576−3.3 (Note 1 Test Circuit Figure 15) Output Voltage (Vin = 12 V, ILoad = 0.5 A, TJ = 25°C) Vout 3.234 3.3 3.366 V Output Voltage (6.0 V ≤ Vin ≤ 40 V, 0.5 A ≤ ILoad ≤ 3.0 A) Vout V TJ = 25°C 3.168 3.3 3.432 TJ = −40 to +125°C 3.135 − 3.465 Efficiency (Vin = 12 V, ILoad = 3.0 A) η − 75 − % LM2576−5 (Note 1 Test Circuit Figure 15) Output Voltage (Vin = 12 V, ILoad = 0.5 A, TJ = 25°C) Vout 4.9 5.0 5.1 V Output Voltage (8.0 V ≤ Vin ≤ 40 V, 0.5 A ≤ ILoad ≤ 3.0 A) Vout V TJ = 25°C 4.8 5.0 5.2 TJ = −40 to +125°C 4.75 − 5.25 Efficiency (Vin = 12 V, ILoad = 3.0 A) η − 77 − % LM2576−12 (Note 1 Test Circuit Figure 15) Output Voltage (Vin = 25 V, ILoad = 0.5 A, TJ = 25°C) Vout 11.76 12 12.24 V Output Voltage (15 V ≤ Vin ≤ 40 V, 0.5 A ≤ ILoad ≤ 3.0 A) Vout V TJ = 25°C 11.52 12 12.48 TJ = −40 to +125°C 11.4 − 12.6 Efficiency (Vin = 15 V, ILoad = 3.0 A) η − 88 − % LM2576−15 (Note 1 Test Circuit Figure 15) Output Voltage (Vin = 30 V, ILoad = 0.5 A, TJ = 25°C) Vout 14.7 15 15.3 V Output Voltage (18 V ≤ Vin ≤ 40 V, 0.5 A ≤ ILoad ≤ 3.0 A) Vout V TJ = 25°C 14.4 15 15.6 TJ = −40 to +125°C 14.25 − 15.75 Efficiency (Vin = 18 V, ILoad = 3.0 A) η − 88 − % LM2576 ADJUSTABLE VERSION (Note 1 Test Circuit Figure 15) Feedback Voltage (Vin = 12 V, ILoad = 0.5 A, Vout = 5.0 V, TJ = 25°C) Vout 1.217 1.23 1.243 V Feedback Voltage (8.0 V ≤ Vin ≤ 40 V, 0.5 A ≤ ILoad ≤ 3.0 A, Vout = 5.0 V) Vout V TJ = 25°C 1.193 1.23 1.267 TJ = −40 to +125°C 1.18 − 1.28 Efficiency (Vin = 12 V, ILoad = 3.0 A, Vout = 5.0 V) η − 77 − % 1. External components such as the catch diode, inductor, input and output capacitors can affect switching regulator system performance. When the LM2576 is used as shown in the Figure 15 test circuit, system performance will be as shown in system parameters section. 2. Tested junction temperature range for the LM2576: Tlow = −40°C Thigh = +125°C |
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