Datasheet LTC7150S, LTC7150S-4 (Analog Devices) - 5

LTC7150S/LTC7150S-4
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VIN = 12V, VOUT = 1.2V, unless otherwise noted. Efficiency vs Load Current 500kHz Efficiency vs Load Current 1MHz Efficiency vs Load Current 2MHz
100 100 100 PVIN = 12V, SVIN = 5V PVIN = 12V, SVIN = 5V PVIN = 12V, SVIN = 5V L = 0.33µH (DCR = 0.37mΩ) L = 0.25µH (DCR = 0.37mΩ) L = 0.15µH (DCR = 0.37mΩ) 95 95 95 90 90 90 85 85 85 EFFICIENCY (%) EFFICIENCY (%) 80 80 EFFICIENCY (%) 80 V 75 OUT = 1.0V 75 VOUT = 1.0V 75 VOUT = 1.0V VOUT = 1.2V VOUT = 1.2V VOUT = 1.2V VOUT = 1.5V VOUT = 1.5V VOUT = 1.5V 70 70 70 0 4 8 12 16 20 0 4 8 12 16 20 0 4 8 12 16 20 IOUT (A) IOUT (A) IOUT (A) 7150S G01 7150S G02 7150S G03
Transient Response, DCM Transient Response, CCM Load Regulation vs Load Current
1.00 VOUT = 1.2V VOUT VOUT 0.75 AC–COUPLED AC–COUPLED 50mV/DIV 50mV/DIV 0.50 0.25 0 IL IL 10A/DIV 10A/DIV –0.25 NORMALIZED (%) –0.50 20µs/DIV 7150S G04 20µs/DIV 7150S G05 –0.75 VIN = 12V, VOUT = 1.2V V I IN = 12V, VOUT = 1.2V OUT = 1.5A to 15A, L = 0.15µH, fSW = 1MHz I –1.00 R OUT = 1.5A TO 15A, L = 0.15µH, fSW = 1MHz ITH = 10kΩ, CITH = 1.0nF, CITHP = 100pF R 0 4 8 12 16 20 R ITH = 20kΩ, CITH = 220pF, CITHP = 22pF FB1 = 10kΩ, RFB2 = 10kΩ R IOUT (A) C FB1 = 10kΩ, RFB2 = 10kΩ OUT = 2 × 100uF + 2 × 330µF C 7150S G06 OUT = 2 × 100µF + 2 × 330µF
RDS(ON) RDS vs Temperature Output Tracking Shutdown Current vs V ON vs Temperature IN
12 40 10 VTRACK/SS 500mV/DIV 30 8 VOUT Ω) 1V/DIV (m 6 (uA) 20 IL I Q R DS(ON) 10A/DIV 4 10 2 7150S G08 BOT FET 200µs/DIV TOP FET VIN = 12V, ROUT = 0.1Ω 0 RFB1 = 10kΩ, RFB2 = 10kΩ 0 –50 –25 0 25 50 75 100 125 150 V 0 5 10 15 20 TRACK = 0V to 1V TEMPERATURE (°C) VIN (V) 7150S G07 7150S G09 Rev. B For more information www.analog.com 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Typical Applications Package Photo Revision History Typical Application Related Parts