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XC6501P401MR Datasheet(PDF) 1 Page - Torex Semiconductor |
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XC6501P401MR Datasheet(HTML) 1 Page - Torex Semiconductor |
1 / 21 page 1/21 XC6501 Output Capacitor-Less, Low Power Consumption, High Speed LDO Regulator ■GENERAL DESCRIPTION The XC6501 series is a 6.0V high speed, low noise CMOS LDO regulator that can provide stable output voltages within a range of 1.2V to 5.0V (0.05V increments) even without a load capacitor CL. This is possible because phase compensation is carried out internally unlike other LDOs where it is done externally. The series consists of a reference voltage source, driver transistor, error amplifier, current limit circuit, and phase compensation circuit. The CE function enables the circuit to be put into stand-by mode by inputting a low level signal to the CE pin thereby reducing current consumption from an already low 13μA (in operation) to less than 0.1μA. In the stand-by mode, if a CL cap is used, the electric charge stored at CL can be discharged via the internal auto-discharge switch and as a result, the VOUT pin quickly returns to the VSS level. The current limit fold-back circuit operates as a short circuit protection and a current limiter function for the output pin. ■ APPLICATIONS ● Mobile phones (RF, Digital cash, I/O etc.) ● Portable games ● Camera modules ● Wireless LAN modules ● LCD modules ● Bluetooth ● Digital-TV tuners ■TYPICAL APPLICATION CIRCUIT ■ FEATURES Operating Voltage Range : 1.4~6.0V Output Voltage Range : 2.0~5.0V(Accuracy:±1%) 1.2~1.95V(Accuracy:±0.02V) Dropout Voltage : 150mV@IOUT=100mA, VOUT=2.8V Low Power Supply : 13μA@VOUT=2.8V Stand-by Current : Less than 0.1μA Ripple Rejection : 50dB@f=1kHz,VOUT=2.8V Protection Circuits : Current limit (300mA, TYP.) : Short circuit protection Output capacitor is not required : Internal phase compensation CL High Speed Auto Discharge Packages USP-3, USP-4 SSOT-24, SOT-25 ■TYPICAL PERFORMANCE CHARACTERISTICS XC6501 Series 2.0 2.2 2.4 2.6 2.8 3.0 3.2 Time (40μs/div) 0 50 100 150 200 250 300 C L=1.0μF Output Current C L無し Ta=25℃,tr=tf=5μs CIN=0.1μF (ceramic) XC6501 Series 2.0 2.2 2.4 2.6 2.8 3.0 3.2 Time (40μs/div) 0 50 100 150 200 250 300 C L=1.0μF Output Current C L無し Ta=25℃,tr=tf=5μs CIN=0.1μF (ceramic) Without CL ETR0337-003 |
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