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LM2574N-3.3 Fiches technique(PDF) 3 Page - ON Semiconductor |
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LM2574N-3.3 Fiches technique(HTML) 3 Page - ON Semiconductor |
3 / 26 page LM2574, NCV2574 www.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 Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended Operating Ranges limits may affect device reliability. SYSTEM PARAMETERS ([Note 1] Test Circuit Figure 16) 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, Vin = 30 V for the 15 V version. ILoad = 100 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). Characteristic Symbol Min Typ Max Unit LM2574−3.3 ([Note 1] Test Circuit Figure 16) Output Voltage (Vin = 12 V, ILoad = 100 mA, TJ = 25°C) Vout 3.234 3.3 3.366 V Output Voltage (4.75 V ≤ Vin ≤ 40 V, 0.1 A ≤ ILoad ≤ 0.5 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 = 0.5 A) η − 72 − % LM2574−5 ([Note 1] Test Circuit Figure 16) Output Voltage (Vin = 12 V, ILoad = 100 mA, TJ = 25°C) Vout 4.9 5.0 5.1 V Output Voltage (7.0 V ≤ Vin ≤ 40 V, 0.1 A ≤ ILoad ≤ 0.5 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 = 0.5 A) η − 77 − % LM2574−12 ([Note 1] Test Circuit Figure 16) Output Voltage (Vin = 25 V, ILoad = 100 mA, TJ = 25°C) Vout 11.76 10 12.24 V Output Voltage (15 V ≤ Vin ≤ 40 V, 0.1 A ≤ ILoad ≤ 0.5 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 = 0.5 A) η − 88 − % LM2574−15 ([Note 1] Test Circuit Figure 16) Output Voltage (Vin = 30 V, ILoad = 100 mA, TJ = 25°C) Vout 14.7 15 15.3 V Output Voltage (18 V < Vin < 40 V, 0.1 A < ILoad < 0.5 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 = 0.5 A) η − 88 − % LM2574 ADJUSTABLE VERSION ([Note 1] Test Circuit Figure 16) Feedback Voltage Vin = 12 V, ILoad = 100 mA, Vout = 5.0 V, TJ = 25°C VFB 1.217 1.23 1.243 V Feedback Voltage 7.0 V ≤ Vin ≤ 40 V, 0.1 A ≤ ILoad ≤ 0.5 A, Vout = 5.0 V VFBT V TJ = 25°C 1.193 1.23 1.267 TJ = −40 to +125°C 1.18 1.28 Efficiency (Vin = 12 V, ILoad = 0.5 A, Vout = 5.0 V) η − 77 − % Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions. 1. External components such as the catch diode, inductor, input and output capacitors can affect the switching regulator system performance. When the LM2574 is used as shown in the Figure 16 test circuit, the system performance will be as shown in the system parameters section of the Electrical Characteristics. 2. Tested junction temperature range for the LM2574, NCV2574: Tlow = −40°C Thigh = +125°C. |
Numéro de pièce similaire - LM2574N-3.3 |
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Description similaire - LM2574N-3.3 |
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