LM1501BGR-ADJ

5A, 300KHz, Step-Down Switching Regulator LM1501BG FEATURES        TO-263-5L PKG 3.3V, 5V, 12V, and adjustable output versions Adjustable version output voltage range Guaranteed 5A output load current Input voltage range up to 40V 300KHz fixed frequency internal oscillator Excellent line and load regulation Thermal shutdown and current limit protection TO-220-5L PKG APPLICATION  Simple high-efficiency step-down regulator  On-card switching regulators  Positive to negative converter ORDERING INFORMATION Device Package LM1501BGR-X.X TO-263-5L LM1501BGT-X.X TO-220-5L X.X = Output Voltage = 3.3, 5.0, 12, ADJ DESCRIPTION The LM1501BG series of regulators are monolithic integrated circuits that provide all the active functions for a step-down switching regulator, capable of driving a 5A 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. Requiring a minimum number of external components, these regulators are simple to use and they include internal frequency compensation and a fixed-frequency oscillator. The LM1501BG series operates at a switching frequency of 300kHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Other features include a guaranteed ±4% tolerance on output voltage under specified input voltage and output load conditions, and ± 15% on the oscillator frequency. External shutdown is included, featuring typically 80uA standby current. Self-protection features include a two stage frequency reducing current limit for output switch and an over temperature shutdown for complete protection under fault conditions. ABSOLUTE MAXIMUM RATINGS (Note 1) CHARACTERISTIC SYMBOL VALUE UNIT Maximum Input Supply Voltage VIN_MAX 45 V ON/OFF Pin Input Voltage VON/OFF -0.3  V  +25 V Feedback Pin Voltage VFB -0.3  V  +25 V Output Voltage to Ground (Steady State) VOUT -1 V PD Internally limited W TSTG -65 to +150 o 150 o Power Dissipation Storage Temperature Range Operating Temperature Range Aug. 2018 – R1.0 TJ -1- C C HTC 5A, 300KHz, Step-Down Switching Regulator LM1501BG RECOMMENDED OPERATING CONDITIONS CHARACTERISTIC Supply Voltage Load Current Junction Temperature SYMBOL MIN. MAX. UNIT VIN - 40 V ILOAD - 5 A TJ -40 125 ℃ ORDERING INFORMATION VOUT ADJ 3.3V 5.0V 12V PACKAGE ORDER NO. DESCRIPTION STATUS TO-263-5L LM1501BGR-ADJ 5A, 300KHz Active TO-220-5L LM1501BGT-ADJ 5A, 300KHz Active TO-263-5L LM1501BGR-3.3 5A, 300KHz Contact Us TO-220-5L LM1501BGT-3.3 5A, 300KHz Contact Us TO-263-5L LM1501BGR-5.0 5A, 300KHz Contact Us TO-220-5L LM1501BGT-5.0 5A, 300KHz Contact Us TO-263-5L LM1501BGR-12 5A, 300KHz Contact Us TO-220-5L LM1501BGT-12 5A, 300KHz Contact Us LM 1501BG Output Voltage Package Type : ADJ / 3.3V / 5.0V /12V R : TO-263-5L T : TO-220-5L Root Name Product Code Aug. 2018 – R1.0 -2- HTC 5A, 300KHz, Step-Down Switching Regulator LM1501BG PIN CONFIGURATION TO-263-5L TO-220-5L PIN DESCRIPTION TO-263-5L / TO-220-5L PKG PIN NO. NAME FUNCTION 1 VIN Operating Input Voltage 2 OUTPUT Switching Output Voltage 3 GND Ground 4 FB Output Voltage Feedback Control 5 ON/OFF ON/OFF Shutdown TYPICAL APPLICATION - Fixed Output Voltage Version LM1501BG Input Voltage VIN L1 Output Voltage OUTPUT Feed back ON/OFF GND CIN COUT D1 - Adjustable Output Voltage Version LM1501BG Input Voltage VIN L1 Output Voltage OUTPUT R1 ON/OFF CIN GND CFB (Option) Feed back COUT D1 R2 Aug. 2018 – R1.0 -3- HTC 5A, 300KHz, Step-Down Switching Regulator LM1501BG ELECTRICAL CHARACTERISTICS Specification with standard type face are for TJ=25℃, and those with boldface type apply over full Operating Temperature Range. Unless otherwise specified, VIN=12V for the 3.3V, 5V, and Adjustable version and VIN=24V for the 12V version. ILOAD=500mA CHARACTERISTIC SYMBOL MIN. TYP. MAX. (Note 3) (Note 2) (Note 3) TEST CONDITION UNIT SYSTEM PARAMETERS (Note 4) Efficiency LM1501BG-ADJ VIN=12V, ILOAD=5A 80 LM1501BG-3.3 VIN=12V, ILOAD=5A 70 LM1501BG-5.0 VIN=12V, ILOAD=5A 75 LM1501BG-12 VIN=18V, ILOAD=5A 85  % LM1501BG-3.3 Output Voltage VOUT LM1501BG-5.0 LM1501BG-12 Feedback Voltage VFB 5.5V ≤ VIN ≤ 40V 3.168 0.2A ≤ ILOAD ≤ 5A 3.135 8V ≤ VIN ≤ 40V 4.800 0.2A ≤ ILOAD ≤ 5A 4.750 15V ≤ VIN ≤ 40V 11.520 0.2A ≤ ILOAD ≤ 5A 11.400 5.2V ≤ VIN ≤ 40V 1.193 0.2A ≤ ILOAD ≤ 5A LM1501BG-ADJ VOUT programmed for 3V 3.3 3.432 3.465 5.0 5.200 V 5.250 12 12.480 12.600 1.267 1.23 1.180 V 1.280 DEVICE PARAMETERS 15 Feedback Bias Current IFB 50 Adjustable Version Only, VFB=1.3V nA 100 255 Oscillator Frequency FO 300 kHz 235 365 1.65 Saturation Voltage VSAT 345 (Note 5) 1.85 IOUT=5A (Note 6, 7) V 2.00 Max Duty Cycle (ON) Max Duty Cycle (ON) DC Min Duty Cycle (OFF) (Note 7) 100 ILOAD ≥ 4A 50 (Note 8) 0 % Current Limit ICL Peak Current (Note 6, 7) 6.9 A Thermal Shutdown Temperature TSD (Note 10) 185 ℃ Output Leakage Current IL Output=0V (Note 6, 8) Quiescent Current IQ Shutdown Current ISHUTDOWN 50 A Output=-1V (Note 9) 10 30 mA (Note 8) 5 10 mA 80 200 A ON/OFF pin = 5V(OFF) (Note 9) 250 Aug. 2018 – R1.0 -4- HTC 5A, 300KHz, Step-Down Switching Regulator LM1501BG ON/OFF CONTROL 1.3 ON/OFF Pin Logic Input VIH Low (Regulator ON) VIL High (Regulator OFF) ON/OFF Pin Logic Input IH VLOGIC = 2.5V (regulator OFF) 5 15 current IL VLOGIC = 0.5V (regulator ON) 0.02 5 Threshold voltage 0.6 V 2.0 uA Note 1. Absolute Maximum Rating indicate limits beyond which damage to the device may occur. Operating Ratings indicate condition 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: Typical numbers are at 25℃ and represent the most likely norm. Note 3: All limits guaranteed at room temperature (standard type face) and at temperature extremes (bold type face). Note 4: External components such as the schottky diode, inductor, input and output capacitors, and voltage programming resistors can affect switching regulator system performance. When the LM1501BG is used as shown in the typical circuit, system performance will be as shown in system parameters section of Electrical Characteristics. Note 5: The switching frequency is reduced when the second stage current limit is activated. The amount of reduction is determined by the severity of current over-load. Note 6: No diode, inductor or capacitor connected to output pin. Note 7: Feedback pin removed from output and connected to 0V to force the output transistor switch ON. Note 8: Feedback pin removed from output and connected to 12V for the 3.3V, 5V, and the ADJ version, and 15V for the 12V version, to force the output transistor switch OFF. Note 9: VIN = 40V. Note 10: Guaranteed by design, not tested. Aug. 2018 – R1.0 -5- HTC 5A, 300KHz, Step-Down Switching Regulator LM1501BG TYPICAL OPERATING CHARACTERISTIC Efficiency vs. IOUT Efficiency vs. IOUT VOUT vs. IOUT VOUT vs. IOUT IQ vs. VIN Aug. 2018 – R1.0 IQ vs. VIN -6- HTC 5A, 300KHz, Step-Down Switching Regulator VSAT vs. IOUT Aug. 2018 – R1.0 LM1501BG VSAT vs. IOUT -7- HTC 5A, 300KHz, Step-Down Switching Regulator LM1501BG 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 LM1501BG Input Voltage VIN L1 Output Voltage OUTPUT Feed back ON/OFF GND CIN COUT D1 [Figure 1] - Adjustable Output Voltage Version LM1501BG Input Voltage VIN L1 Output Voltage OUTPUT R1 ON/OFF CIN GND CFB (Option) Feed back COUT D1 R2 [Figure 2] * VOUT = VFB (1 + Aug. 2018 – R1.0 R1 ) , Where VFB = 1.23V R2 -8- HTC 5A, 300KHz, Step-Down Switching Regulator LM1501BG REVISION NOTICE The description in this datasheet can be revised without any notice to describe its electrical characteristics properly. Aug. 2018 – R1.0 -9- HTC