XC6503 Datasheet, PDF (1/26 Pages) Torex Semiconductor – CL Capacitor-Less 500mA Low Power Consumption High Speed LDO Regulator

XC6503 Series
ETR0346-008
C_L Capacitor-Less 500mA Low Power Consumption High Speed LDO Regulator
■GENERAL DESCRIPTION
The XC6503 series is a 500mA high speed CMOS LDO regulator that can provide stable output voltages even without a load
capacitor C_L. The devices are available in fixed output voltage from 1.2V to 5.0V in 0.05V increments
The C_L capacitor-less is possible because phase compensation is carried out internally unlike other LDOs where it is done
externally. It results in saving board design space. The current limit fold-back circuit and thermal shutdown circuit work as
protection circuit. The XC6503P is a 3-Terminal regulator and the XC6503D has a chip enable function, which enables the
entire circuit to be turned off by a low level input signal to the CE pin.
When a C_L capacitor is used, the IC can discharge the electric charge stored at the output capacitor through the internal switch
while in standby state, and as a result the V_OUT quickly returns to the V_SS level.
■APPLICATIONS
●Smart phones / Mobile phones
●Portable game consoles
●Modules (wireless, cameras,etc.)
●Bluetooth modules
●Digital TV tuner modules
■TYPICAL APPLICATION CIRCUIT
■FEATURES
Maximum Output Current :
Input Voltage Range
:
Output Voltage Range
:
Output Accuracy
:
Temperature Stability
:
Dropout Voltage
:
Low Power Consumption :
High PSRR
:
Protection Current
:
C_L Capacitor-Less
:
Operating Ambient Temperature :
Packages
:
Environmentally Friendly :
500mA
1.7V ～ 6.0V
1.2V ～ 5.0V (0.05V increments)
±1.0% (2.0V～5.0V)
±20mV (1.2V～1.95V)
±30ppm/℃
190mVï¼ V_OUT=2.8V, I_OUT =300mA
15μA (TYP.), 0.1μA (in standby)
55dBï¼ 1kHz, V_OUT=2.8V
Current Limiter （630mA TYP.）
Short-circuit Protection
Thermal Shutdown
Internal Phase Compensation
-40℃～+85℃
USP-4, SOT-25, SOT-89-5 (XC6503D)
SOT-89 (XC6503P)
EU RoHS Compliant, Pb Free
■TYPICAL PERFORMANCE
CHARACTERISTICS
300
250
X C6 5 0 3 x2 8 1 xx
V_IN=3.8V, tr=tf=5μs, I_OUT=10⇔150mA, Ta=25℃
3.4
　　　　　　　　　C_L=0.1μF(ceramic)
　　　　　　　　　without C_L
3.1
OutputVoltage
200
2.8
150
2.5
OutputCurrent
100
2.2
50
1.9
0
1.6
Time : 40μs/div
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