Datasheet XC9267 (Torex) - 6
| Manufacturer | Torex |
| Description | 36V Operation 0.6A Synchronous Step-Down DC/DC Converters |
| Pages / Page | 30 / 6 — XC9267. Series |
| File Format / Size | PDF / 1.7 Mb |
| Document Language | English |
XC9267. Series
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XC9267 Series
■ELECTRICAL CHARACTERISTICS XC9267series Ta=25℃ PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT CIRCUIT VFB=0.739V→0.761V, FB Voltage VFBE VFB Voltage when Lx pin voltage 0.739 0.750 0.761 V ② changes from"H" level to "L" level Setting Output VOUTSET - 1 - 25 V - Voltage Range (*1) Operating Input VIN - 3 - 36 V - Voltage Range (*1) VEN/SS=12V,VIN:2.8V→2.6V,VFB=0V UVLO Detect Voltage VUVLOD VIN Voltage which Lx pin voltage 2.6 2.7 2.8 V ② holding "H" level VEN/SS=12V,VIN:2.7V→2.9V,VFB=0V UVLO Release Voltage VUVLOR VIN Voltage which Lx pin voltage 2.7 2.8 2.9 V ② holding "L" level XC9267B75C - 180 350 Quiescent Current Iq VFB=0.825V μA ④ XC9267B75D - 290 500 Stand-by Current ISTBY VIN=12V, VEN/SS=VFB=0V - 1.65 2.50 μA ④ Connected to XC9267B75C 1.098 1.200 1.302 external Oscillation Frequency fOSC MHz ① components, XC9267B75D 2.013 2.200 2.387 IOUT=200mA Minimum On Time tONMIN Connected to external components - 85 (*2) - ns ① Minimum Duty Cycle DMIN VFB=0.825V - - 0 % ② Maximum Duty Cycle DMAX VFB=0.675V 100 - - % ② Lx SW "H" On Resistance RLxH VFB=0.675V, ILx=200mA - 1.20 1.38 Ω ⑤ 0.60 Lx SW "L" On Resistance RLxL - - Ω ⑤ (*2) Highside Current Limit (*3) ILIMH VFB=VFBE×0.98 1.00 1.30 - A ⑤ Internal Soft-Start Time tSS1 VFB=0.675V 1.6 2.0 2.4 ms ② VFB=0.675V External Soft-Start Time tSS2 21 26 33 ms ③ RSS=430KΩ, CSS=0.47μF VFB=0.712V→0.638V, RPG:100kΩ pull-up to 5V PG detect voltage (*4) VPGDET 0.638 0.675 0.712 V ⑤ VFB Voltage when PG pin voltage changes from"H" level to "L" level PG Output voltage (*4) VPG VFB=0.6V, IPG=1mA - - 0.3 V ② Connected to external components, Efficiency (*5) EFFI - 88 - % ① VIN=12V, VOUT=5V, IOUT=300mA FB Voltage ΔVFB/ Temperature (ΔT -40℃≦Topr≦105℃ - ±100 - ppm/℃ ② opr・VFBE) Characteristics Test Condition: Unless otherwise stated, VIN=12V, VEN/SS=12V, VPG:OPEN (*4) Peripheral parts connection conditions： L=6.8μH,R =680kΩ,R =120kΩ,C =10μF×2parallel, C =2.2μF FB1 FB2 FB=18pF,CL IN (*1) Please use within the range of V ≧ OUT/VIN tONMIN[ns]×fOSC[MHz]×10-3 (*2) Design reference value. This parameter is provided only for reference. (*3) Current limit denotes the level of detection at peak of coil current. (*4) For the USP-6C Package only. (*5) EFFI = {(output voltage) x (output current)} / {(input voltage) x (input current)} x 100 6/30
■ELECTRICAL CHARACTERISTICS XC9267series Ta=25℃ PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT CIRCUIT VFB=0.739V→0.761V, FB Voltage VFBE VFB Voltage when Lx pin voltage 0.739 0.750 0.761 V ② changes from"H" level to "L" level Setting Output VOUTSET - 1 - 25 V - Voltage Range (*1) Operating Input VIN - 3 - 36 V - Voltage Range (*1) VEN/SS=12V,VIN:2.8V→2.6V,VFB=0V UVLO Detect Voltage VUVLOD VIN Voltage which Lx pin voltage 2.6 2.7 2.8 V ② holding "H" level VEN/SS=12V,VIN:2.7V→2.9V,VFB=0V UVLO Release Voltage VUVLOR VIN Voltage which Lx pin voltage 2.7 2.8 2.9 V ② holding "L" level XC9267B75C - 180 350 Quiescent Current Iq VFB=0.825V μA ④ XC9267B75D - 290 500 Stand-by Current ISTBY VIN=12V, VEN/SS=VFB=0V - 1.65 2.50 μA ④ Connected to XC9267B75C 1.098 1.200 1.302 external Oscillation Frequency fOSC MHz ① components, XC9267B75D 2.013 2.200 2.387 IOUT=200mA Minimum On Time tONMIN Connected to external components - 85 (*2) - ns ① Minimum Duty Cycle DMIN VFB=0.825V - - 0 % ② Maximum Duty Cycle DMAX VFB=0.675V 100 - - % ② Lx SW "H" On Resistance RLxH VFB=0.675V, ILx=200mA - 1.20 1.38 Ω ⑤ 0.60 Lx SW "L" On Resistance RLxL - - Ω ⑤ (*2) Highside Current Limit (*3) ILIMH VFB=VFBE×0.98 1.00 1.30 - A ⑤ Internal Soft-Start Time tSS1 VFB=0.675V 1.6 2.0 2.4 ms ② VFB=0.675V External Soft-Start Time tSS2 21 26 33 ms ③ RSS=430KΩ, CSS=0.47μF VFB=0.712V→0.638V, RPG:100kΩ pull-up to 5V PG detect voltage (*4) VPGDET 0.638 0.675 0.712 V ⑤ VFB Voltage when PG pin voltage changes from"H" level to "L" level PG Output voltage (*4) VPG VFB=0.6V, IPG=1mA - - 0.3 V ② Connected to external components, Efficiency (*5) EFFI - 88 - % ① VIN=12V, VOUT=5V, IOUT=300mA FB Voltage ΔVFB/ Temperature (ΔT -40℃≦Topr≦105℃ - ±100 - ppm/℃ ② opr・VFBE) Characteristics Test Condition: Unless otherwise stated, VIN=12V, VEN/SS=12V, VPG:OPEN (*4) Peripheral parts connection conditions： L=6.8μH,R =680kΩ,R =120kΩ,C =10μF×2parallel, C =2.2μF FB1 FB2 FB=18pF,CL IN (*1) Please use within the range of V ≧ OUT/VIN tONMIN[ns]×fOSC[MHz]×10-3 (*2) Design reference value. This parameter is provided only for reference. (*3) Current limit denotes the level of detection at peak of coil current. (*4) For the USP-6C Package only. (*5) EFFI = {(output voltage) x (output current)} / {(input voltage) x (input current)} x 100 6/30
