LM2596HVGR-12

60V, 3A, 150kHz, Step-down Switching Regulator FEATURES LM2596HV SOP-8PP PKG  3.3V, 5V, 12V and Adjustable output versions  Adjustable version output voltage range, 1.23V to 57V  ±4% max over line and load condition           Available in TO-220, TO-263 and SOP-8PP Guaranteed 3A output load current Input voltage range up to 60V Requires only 4 external components Excellent line and load regulation specifications 150kHz fixed frequency internal oscillator Low power standby mode, ISTB typically 30uA High efficiency Thermal shutdown and current limit protection Output short protection by reduction of frequency by 3 times TO-263 PKG TO-220 PKG ORDERING INFORMATION Device LM2596HVGDP-ADJ LM2596HVGDP-X.X LM2596HVGR-ADJ LM2596HVGR-X.X LM2596HVGT-ADJ LM2596HVGT-X.X X.X = Output Voltage = 3.3, 5.0, 12 APPLICATION  Simple high-efficiency step-down (buck) regulator  Efficient pre-regulator for linear regulators  On-card switching regulators Package SOP-8PP TO-263 5L TO-220 5L DESCRIPTION The LM2596HV series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 3A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V, and an adjustable output version. Available in a standard 5-lead TO-220 package and a 5-lead TO-263 surface mount package. External shutdown is included, featuring typically 30 μA standby current. The output switch includes cycle-bycycle current limiting, as well as thermal shutdown, and protection from output short for full protection under fault conditions. Absolute Maximum Ratings (Note 1) CHARACTERISTIC Supply Voltage ON/OFF Pin Input Voltage SYMBOL MIN. MAX. UNIT VIN - 63 V VON/OFF -0.3 60 (or VIN) V FB pin voltage VFB -0.3 25 (or VIN) V Output voltage to GND VOUT -1 Storage Temperature Range TSTG -65 150 ℃ Maximum Junction Temperature Range TJ,MAX - 150 ℃ Feb. 2020 – R1.1 -1- V HTC 60V, 3A, 150kHz, Step-down Switching Regulator LM2596HV Operating Ratings CHARACTERISTIC Supply Voltage Load Current Temperature Range SYMBOL MIN. MAX. UNIT VIN 4.5 60 V ILOAD - 3.0 A TJ -40 125 ℃ Ordering Information VOUT ADJ 3.3V 5.0V 12V Package Order No. Description Supplied As Status SOP-8PP-8L LM2596HVGDP-ADJ 3A, 150kHz, Adjustable Reel Active TO-263-5L LM2596HVGR-ADJ 3A, 150kHz, Adjustable Reel Active TO-220-5L LM2596HVGT-ADJ 3A, 150kHz, Adjustable Tube Active SOP-8PP-8L LM2596HVGDP-3.3 3A, 150kHz, Fixed Reel Contact us TO-263-5L LM2596HVGR-3.3 3A, 150kHz, Fixed Reel Active TO-220-5L LM2596HVGT-3.3 3A, 150kHz, Fixed Tube Contact us SOP-8PP-8L LM2596HVGDP-5.0 3A, 150kHz, Fixed Reel Active TO-263-5L LM2596HVGR-5.0 3A, 150kHz, Fixed Reel Active TO-220-5L LM2596HVGT-5.0 3A, 150kHz, Fixed Tube Active SOP-8PP-8L LM2596HVGDP-12 3A, 150kHz, Fixed Reel Contact us TO-263-5L LM2596HVGR-12 3A, 150kHz, Fixed Reel Active TO-220-5L LM2596HVGT-12 3A, 150kHz, Fixed Tube Active Feb. 2020 – R1.1 -2- HTC 60V, 3A, 150kHz, Step-down Switching Regulator LM2596HV PIN CONFIGURATION VIN 1. VOUT 2. FB/ADJ 3. On/Off 4. 5. ON/OFF 4. FB/ADJ 3. GND 2. VOUT 1. VIN 8. GND 7. GND 6. GND 5. GND Exposed PAD SOP-8PP 5. ON/OFF 4. FB/ADJ 3. GND 2. VOUT 1. VIN TO-263-5L TO-220-5L PIN DESCRIPTION TO-263 / TO-220 5 LEAD SOP-8PP 8 LEAD Pin No. Pin No. Name Function Name Function 1 VIN Input Supply 1 VIN Input Supply 2 VOUT Output Voltage 2 VOUT Output Voltage 3 GND Ground 3 FB / ADJ Output Voltage Feedback or Output Adjust 4 FB / ADJ Output Voltage Feedback or Output Adjust 4 ON/OFF ON/OFF Shutdown GND Ground ON/OFF 5/6/7/8 Shutdown * Exposed Pad of SOP8-PP package should be externally connected to GND. 5 ON/OFF TYPICAL APPLICATION - Fixed Output Voltage Version LM2596HV Input Voltage VIN C1 0.1uF Output Voltage Feed back ON/OFF CIN 100uF L1 OUTPUT GND COUT 1000uF C2 0.1uF D1 - Adjustable Output Voltage Version LM2596HV Input Voltage VIN L1 Output Voltage OUTPUT R2 ON/OFF CIN 100uF C1 0.1uF GND Feed back D1 C2 0.1uF CFF (Option) COUT 1000uF R1 Feb. 2020 – R1.1 -3- HTC 60V, 3A, 150kHz, Step-down Switching Regulator LM2596HV ELECTRICAL CHARACTERISTICS Unless specified otherwise, VIN = 12V for the 3.3V, 5V and adjustable versions, ILOAD = 0.5A, VIN = 18V for 12V version. The boldface type denotes the specifications, which apply over full operating temperature range TJ = -40 to +125°C. PARAMETER SYMBOL SYSTEM PARAMETERS Feedback Voltage TEST CONDITION MIN. TYP. MAX. UNIT (Note 3) VFB LM2596HV-ADJ LM2596HV-3.3 Output Voltage (Note 2) VO LM2596HV-5.0 LM2596HV-12 8V ≤ VIN ≤ 60V, 1.193 0.2A ≤ ILOAD ≤ 3A 1.180 5.5V ≤ VIN ≤ 60V, 3.185 V 1.285 3.432 3.30 0.2A ≤ ILOAD≤ 3A 3.152 8V ≤ VIN ≤ 60V, 4.825 V 3.465 5.20 5.00 0.2A ≤ ILOAD ≤ 3A 4.775 15V ≤ VIN ≤ 60V, 11.58 0.2A ≤ ILOAD ≤ 3A 1.273 1.230 V 5.25 12.48 12.00 11.46 V 12.60 Line Regulation Line Reg 8 ≤ VIN ≤ 60V, ILOAD = 0.2A 0.3 % Load Regulation Load Reg 10mA ≤ ILOAD ≤ 3A, VIN = 12V 0.3 % 79 % LM2596HV-ADJ Efficiency η VIN =12V, ILOAD =3A, VOUT = 5V LM2596HV-3.3 VIN =12V, ILOAD =3A 77 % LM2596HV-5.0 VIN =12V, ILOAD =3A 79 % LM2596HV-12 VIN =15V, ILOAD =3A 83 % DEVICE PARAMETERS Quiescent Current Feedback Bias Current Shutdown Supply Current Oscillator Frequency Oscillator Frequency of short Circuit Protect VFB=12V force driver off IFB VFB=1.3V (Adjustable version only) ISTB VON/OFF=5V, VIN=60V FOSC FSCP Max. duty Cycle DC(MAX.) Min. duty Cycle DC(MIN.) Feb. 2020 – R1.1 (Note 6) IQ 5 -250 -70 150 120 When VOUT < 40% from nominal, (Note 5) VFB=12V force driver off (VFB=15V, For 12V Version) -4- 168 180 50 (Note 8) VFB=0V force driver on 220 280 133 mA nA -450 30 (Note 8) IOUT=CL 8 uA KHz KHz 100 % 0 HTC 60V, 3A, 150kHz, Step-down Switching Regulator Current Limit Saturation Voltage Output Leakage Current Output Leakage Current ON/OFF Input Threshold ON/OFF Input Current Thermal Shutdown Temperature CL VSAT IL IL1 Peak Current. No outside circuit. VFB=0V (Note 4, 8) 4.1 5.3 3.8 (Note 4) (Note 6, 7) VOUT=-1V. No outside circuit. VFB=12V 1.50 1.70 VOUT=0V. No outside circuit. VFB=12V 6.7 7.0 1.35 IOUT=3A. No outside circuit. VFB=0V LM2596HV (Note 6, 7) VTH A V -300 -50 uA -30 -3 mA 0.6 1.3 2.0 V IH VON/OFF=2.5V -5 -0.1 5 uA IL VON/OFF=0.5V -1 -0.01 1 uA TSD TJ 160 ℃ Note 1. Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. 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. Note 2, All limits guaranteed at room temperature (standard type face) and at temperature extremes (bold type face). Note 3, External components such as the schottky diode, inductor, input and output capacitors can affect switching regulator system performance. When the 2596HV is used as shown in the Figure 2 test circuit, system performance will be as shown in system parameters section of Electrical Characteristics. Note 4. Output pin sourcing current. No diode, inductor or capacitor connected to output. Note 5. Feedback pin removed from output and connected to 0V. Note 6. Feedback pin removed from output and connected to +12V for the Adjustable, 3.3V, and 5V, versions, and +25V for the 12V and 15V versions, to force the output transistor OFF. Note 7. VIN =60V. Note 8. The oscillator frequency reduces to approximately 50KHz in the event of an output short or an overload which causes the regulated output voltage to drop approximately 40% from the nominal output voltage. This self protections feature lowers the average power dissipation of the IC by lowering the minimum duty cycle from 5% down to approximately 2%. Feb. 2020 – R1.1 -5- HTC 60V, 3A, 150kHz, Step-down Switching Regulator LM2596HV TYPICAL OPERATING CHARACTERISTIC Efficiency vs. IOUT Line Regulation vs. VIN Load Regulation vs. IOUT VOUT vs. TJ FOSC vs. TJ Feb. 2020 – R1.1 VSAT vs. IOUT -6- HTC 60V, 3A, 150kHz, Step-down Switching Regulator IQ vs. VIN Feb. 2020 – R1.1 LM2596HV ISTB vs. VIN -7- HTC 60V, 3A, 150kHz, Step-down Switching Regulator LM2596HV APPLICATION INFORMATION As in any switching regulator, layout is very important. Rapidly switching currents associated with wiring inductance generate voltage transients which can cause problems. For minimal inductance and ground loops, the length of the wires should be kept as short as possible. Single-point grounding or ground plane construction should be used for best results. Keep the feedback wiring away from the inductor flux - Fixed Output Voltage Version LM2596HV Input Voltage VIN Output Voltage Feed back ON/OFF CIN 100uF L1 OUTPUT C1 0.1uF GND COUT 1000uF C2 0.1uF D1 [Figure 1] - Adjustable Output Voltage Version LM2596HV Input Voltage VIN L1 Output Voltage OUTPUT R2 ON/OFF CIN 100uF C1 0.1uF GND Feed back D1 C2 0.1uF CFF (Option) COUT 1000uF R1 [Figure 2] * VOUT = VFB(1 + R2 ) R1 where VFB = 1.23V, R1 between 1KΩ and 5KΩ. Feb. 2020 – R1.1 -8- HTC 60V, 3A, 150kHz, Step-down Switching Regulator LM2596HV REVISION NOTICE The description in this data sheet can be revised without any notice to describe its electrical characteristics properly. Feb. 2020 – R1.1 -9- HTC