LTM8001 e lecTrical characTerisTics The l denotes the specifications which apply over the full operatingtemperature range, otherwise specifications are at TA = 25°C. RUN = 3V unless otherwise noted (Note 3). PARAMETERCONDITIONSMINTYPMAXUNITSBuck Regulator Minimum VIN0 Input Voltage l 6 V VOUT0 Output DC Voltage 0A < IOUT ≤ 3A, RFB0 Open 1.2 V 0A < IOUT ≤ 3A; RFB0 = 536Ω 24 V VOUT0 Output DC Current 6V < VIN0 < 36V, VOUT = 3.3V 0 5 A Quiescent Current Into VIN0 RUN = 0V 0.1 1 µA No Load 26 40 mA VOUT0 Line Regulation 6V < VIN0 < 36V, IOUT = 1A ±0.5 % VOUT0 Load Regulation VIN0 = 24V, 0A < IOUT < 5A ±1.2 % VOUT0 RMS Voltage Ripple VIN0 = 24V, IOUT = 5A 10 mV Switching Frequency RT = 39.2k 1000 kHz RT = 200k 200 kHz Voltage at FB0 Pin l 1.15 1.19 1.21 V Internal FBO Resistor 10 kΩ RUN Pin Current RUN = 1.45V 5.5 µA RUN Threshold Voltage (Falling) 1.49 1.61 V RUN Threshold Voltage (Rising) 1.63 1.75 V ILIM Control Range 0 1.5 V ILIM Pin Current 100 nA ILIM Current Limit Accuracy ILIM = 1.5V 5.1 6.4 A ILIM = 0.75V 2.5 3.4 A VREF Voltage 0.5mA Load 1.9 2 2.1 V SS Pin Current 11 µA SYNC Input Low Threshold fSYNC = 500kHz 0.8 V SYNC Input High Threshold fSYNC = 500kHz 1.2 V SYNC Input Current SYNC = 0V –0.1 µA SYNC = 2V 0.1 µA LDO Array SET1-5 Pin Current BIAS123 = BIAS45 = 2V, SETx = 0V, IOUT1-5 = 1mA 9.85 10 10.15 µA l 9.80 10 10.20 µA VOUTx – SETx Offset Voltage BIAS123 = BIAS45 = 2V, SETx = 0V, IOUT1-5 = 1mA –4 4 mV l –6.5 6.5 mV Line Regulation for SET Current 1V < VOUT0 = VIN45 < 22V, IOUTx = 1mA (Note 4) l 11 nA Line Regulation for VOUT1-5 1V < VOUT0 = VIN45 < 22V, IOUTx = 1mA (Note 4) 0.25 mV Load Regulation for SETx Current IOUT1-5 = 1mA to 1.1A 25 nA Load Regulation for VOUT1-5 IOUT1-5 = 1mA to 1.1A 34 mV l 52 mV Minimum Load Current for VOUT1-5 (Note 4) VOUT0 = VIN45 = BIAS123 = BIAS45 = 10V l 500 µA VOUT0 = VIN45 = BIAS123 = BIAS45 = 22V l 1 mA BIAS123, BIAS45 Dropout Voltage IOUT1-5 = 100mA 1.2 V IOUT1-5 = 1.1A l 1.6 V VOUT0 to VOUT1-3 and VIN45 to VOUT4-5 Dropout IOUT1-5 = 100mA 100 mV Voltage IOUT1-5 = 1.1A l 500 mV 8001fd For more information www.linear.com/LTM8001 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Package Photo Revision History Typical Application Related Parts