XC9265Series Ultra Low Power Synchronous Step-Down PFM DC,DC Converter
●GENERAL DESCRIPTION:
■XC9265 series are Ultra Low Power synchronous-rectification type PFM step down DC/DC converters with a built-in 0.4Ω(TYP.) Pch driver and 0.4Ω (TYP.) Nch synchronous switching transistor, designed to allow the use of ceramic capacitor.
■PFM control enables a low quiescent current, making these products ideal for battery operated devices that require high efficiency and long battery life.
■Only inductor, C-IN and CL capacitors are needed as external parts to make a step down DC/DC circuit.
■Operation voltage range is from 2.0V to 6.0V. This product has fixed output voltage from 1.0V to 4.0V(accuracy: ±2.0%) in increments of 0.05V.
■During stand-by, all circuits are shutdown to reduce consumption to as low as 0.1μA(TYP.) or less.
■With the built-in UVLO (Under Voltage Lock Out) function, the internal P-channel MOS driver transistor is forced OFF when inputvoltage gets lower than UVLO detection voltage. Besides, XC9265 series has UVLO release voltage of 1.8V (Typ.).
■The product with CL discharge function can discharge CL capacitor during stand-by mode due to the internal resistance by turning on the internal switch between V-OUT -GND. This enables output voltage restored to GND level fast.
●FEATURES:
■Input Voltage Range : 2.0V~6.0V
■Output Voltage Setting : 1.0V~4.0V (±2.0%, 0.05V step increments)
■Output Current :
▲200mA(XC9265A/C)
▲50mA(XC9265B/D)
■Driver Transistor :
▲0.4Ω (Pch Driver Tr)
▲0.4Ω (Nch Synchronous rectifier Switch Tr)
■Supply Current : 0.50μA @ V-OUT(T)=1.8V (TYP.)
■Control Method : PFM control
■High Speed Transient : 50mV (V-IN=3.6V, V-OUT=1.8V, I-OUT=10μA→50mA)
■PFM Switching Current : 330mA(XC9265A/C), 180mA(XC9265B/D)
■Function :
▲Short Protection
▲C-L Discharge(XC9265C/ D)
▲UVLO
▲Ceramic Capacitor Compatible
■Operation Ambient Temperature : -40～+85℃
■Package : SOT-25, USP-6EL
■Environmentally Friendly : EU RoHS compliant, Pb Free
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[ Wearable Devices ][ Smart meters ][ Bluetooth units ][ Energy Harvest devices ][ Back up power supply circuits ][ Portable game consoles ] |
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Datasheet |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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2017/11/22 |
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ETR05053-004 |
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1.4 MB |
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