XC6224Series
ETR0340-004
150mA High Speed LDO Voltage Regulator with ON/OFF Switch
■GENERAL DESCRIPTION
The XC6224 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,
and a phase compensation circuit.
This IC is suitable for a local power supply placed in adjacent to the system logic LSI or others, because of low input voltage
operation, using an ultra small package USPN-4B02 (0.75mm x 0.95mm) and stable operation with a small phase
compensation capacitor (CL) 0.47μF.
Also, this IC has fast transient response and high ripple rejection (70dB @ 1kHz).
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 over current protection circuit is integrated and operates when the output current reaches current limit level.
■APPLICATIONS
●Cell phones
●Digital still cameras
●Portable electronic devices
●Portable media players
●Bluetooth
■FEATURES
Maximum Output Current
Operating Voltage Range
High Accuracy
: 150mA
: 1.2V~3.6V
: ±1.5% (VOUT =1.25V~3.0V)
: ±20mV (VOUT = 0.8V~1.20V)
: 33μA (TYP.)
Low Power Consumption
Stand-by Current
: 0.1μA
High Ripple Rejection
Dropout Voltage
Operating Temperature Range: -40℃~+85℃
: 70dB@1kHz
: 210mV@150mA (VOUT=2.8V)
●Wireless LAN
●Terrestrial digital TV tuners
Protection Circuits
ON/OFF Control
: Current Limiter
Short Circuit Protection
: Active High
CL Auto Discharge Function
: Low ESR Capacitor
: USPN-4B02
Output Capacitor
Packages
SSOT-24
SOT-25
Environmentally Friendly
: EU RoHS Compliant, Pb Free
■TYPICAL APPLICATION CIRCUIT
■TYPICAL PERFORMANCE
CHARACTERISTICS
XC6224x181
IOUT = 1mA ⇔ 150mA, tr=tf=0.5μs,
VIN = 2.80V, Ta=25℃, CIN=CL=0.47μF
500
450
400
350
300
250
200
150
100
50
1.95
1.90
1.85
1.80
1.75
1.70
1.65
1.60
1.55
1.50
1.45
Output Voltage
Output Current
0
Time [10us/div]
1/26