XC6211 Series
High Speed LDO Regulator
Low ESR Cap. Compatible, On / Off Switch
Preliminary
July 4, 2003 Ver. 3
Low Power Consumption
: 25 µA (TYP)
Applications
Mobile phones
Dropout Voltage
: 60mV (IOUT=30mA)
200mV (IOUT=100mA)
: 150 mA (VOUT < 1.7V)
240 mA ( VOUT ≥ 1.8V)
(300mA limit)
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Cordless phones and radio communication equipment
Portable games
Output Current
Cameras, Video recorders
Reference Voltage Source
Battery Powered Equipment
Highly Accurate
: ±2% (±30mV when VOUT=1.5V)
: 0.9V ~ 5.0 V (50mV Step)
Output Voltage Range
Low ESR capacitor compatible
General Description
Features
The XC6211 series are highly accurate, low noise, CMOS LDO
Voltage Regulators. Offering low output noise, high ripple rejection
ratio, low dropout and very fast turn-on times, the XC6211 series
is ideal for today’s cutting edge mobile phone.
Maximum Output Current
: 150 mA (VOUT < 1.7V)
240 mA ( VOUT ≥ 1.8V)
(300mA limit)
Internally the XC6211 includes a reference voltage source, error
amplifiers, driver transistors, current limiters and phase
compensators. The XC6211’s current limiters' foldback circuit also
operates as a short protect for the output current limiter and the
output pin.
The output voltage is set by laser trimming. Voltages are
selectable in 50mV steps within a range of 0.9V to 5.0V. The
XC6211 series is also fully compatible with low ESR ceramic
capacitors, reducing cost and improving output stability. This
high level of output stability is maintained even during frequent
load fluctuations, due to the excellent transient response
performance and high PSRR achieved across a broad range of
frequencies.
Dropout Voltage
: 200mV (IOUT=100mA)
: 2.0V ~ 6.0V
Operating Voltage Range
Output Voltage Range
Highly Accurate
: 0.9V ~ 5.0V (50mV Step)
: ±2% (VOUT>1.5V)
: ±30mV (VOUT≤1.5V)
: 25 µA (TYP.)
Low Power Consumption
Standby Current
: Less than 0.1µA (TYP.)
: 65dB (10kHz)
High Ripple Rejection
O
O
Operating Temperature Range
Low ESR Capacitor Compatible
Ultra Small Packages
: -40 C ~ +85 C
: Ceramic capacitor
: SOT-23-5
The CE function allows the output of regulator to be turned off,
resulting in greatly reduced power consumption.
The XC6211 series is available in the SOT-23-5 package.
Typical Applications
CE
VIN
1
2
3
5
4
VSS
NC VOUT
CIN
1µF
CL
1µF
1