XC6223 Datasheet, PDF (1/36 Pages) Torex Semiconductor – Built-in Inrush Current Protection, 300mA High Speed LDO Voltage Regulator

XC6223 Series
ETR0339-005
Built-in Inrush Current Protection, 300mA High Speed LDO Voltage Regulator
■GENERAL DESCRIPTION
The XC6223 series is a high speed LDO regulator that features high accurate, low noise, high ripple rejection, low dropout
and low power consumption. The series consists of a voltage reference, an error amplifier, a driver transistor, a current limiter, a
phase compensation circuit, a thermal shutdown circuit and an inrush current protection circuit.
The CE function enables the circuit to be in stand-by mode by inputting low level signal. In the stand-by mode, the series
enables the electric charge at the output capacitor CL to be discharged via the internal switch, and as a result the VOUT pin
quickly returns to the VSS level. The output stabilization capacitor CL is also compatible with low ESR ceramic capacitors.
The output voltage is selectable in 0.05V increments within the range of 1.2V to 4.0V which fixed by laser trimming
technologies. The over current protection circuit and the thermal shutdown circuit are built-in. These two protection circuits
will operate when the output current reaches current limit level or the junction temperature reaches temperature limit level.
■APPLICATIONS
●Digital still cameras
●Cell phones
●Portable games
●Camera modules
●IC recorders
●Portable media players
●Bluetooth
●Wireless LAN
●Terrestrial digital TV tuners
●Cordless phones
■FEATURES
Maximum Output Current
Input Voltage Range
Output Voltages
Dropout Voltage
Low Power Consumption
Stand-by Current
High Ripple Rejection
Protection Circuits
Low ESR Capacitors
CE Function
Small Packages
Environmentally Friendly
: 300mA
: 1.6～5.5V
: 2.0～4.0V （Accuracy ±1%）
1.2～1.95V （Accuracy ±20mV）
0.05V increments
: 200mVï¼ I_OUT=300mA (V_OUT=3.0V)
: 100μA
: 0.1μA
: 80dBï¼ f=1kHz
: Current Limit（400mA）
Short Circuit Protection
Over Heat Protection
Inrush Current Protection
: C_IN =1.0μF, C_L=1.0μF
: Active High
C_L High Speed Discharge
: USPQ-4B03
USP-4
SSOT-24
SOT-25
SOT-89-5
: EU RoHS Compliant, Pb Free
■TYPICAL APPLICATION CIRCUIT
■ TYPICAL PERFORMANCE
CHARACTERISTICS
2.60
XC6223x251
tr = tf = 0.5μs, Ta = 25℃, I_OUT = 1⇔150mA
V_IN = 3.5V, C_IN = 1μF (ceramic), C_L = 1μF (ceramic)
400
2.55
350
2.50
300
Output Voltage
2.45
250
2.40
200
2.35
150
2.30
Output Current
100
2.25
50
2.20
0
Time [20μs/div]
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