XC6219 Series
High Speed LDO Regulators, Low ESR Cap. Compatible, ON/OFF Switch
October 4, 2004 V5
ꢀCMOS Low Power Consumption
ꢀAPPLICATIONS
ꢁMobile phones
ꢀDropout Voltage
60mV @ 30mA
200mV @ 100mA
ꢁCordless phones and radio communication equipment
ꢁPortable games
ꢁCameras, video cameras
ꢁReference voltage sources
ꢁBattery powered equipment
ꢀOutput Current
150mA (VOUT<1.75V)
240mA (VOUT>1.8V)
(300mA limit)
ꢀHighly Accurate
+ 2%
(+30mV when VOUT>1.5V)
0.9V to 5.0V (50mV increments)
ꢀOutput Voltage Range
ꢀLow ESR Ceramic Capacitor Compatible
ꢀGENERAL DESCRIPTION
ꢀFEATURES
The XC6219 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 XC6219 series
is ideal for today’s cutting edge mobile phone.
Maximum Output Current
150mA (VOUT<1.75V)
240mA (VOUT>1.8V)
(300mA limit (TYP))
200mV (IOUT=100mA)
2.0V ~ 6.0V
0.9V ~ 5.0V (50mV steps)
+ 2% (VOUT>1.5V)
+30mV (VOUT<1.5V)
25µA (TYP.)
Dropout Voltage
Internally the XC6219 includes a reference voltage source, error
amplifiers, driver transistors, current limiters and phase
compensators. The XC6219’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 XC6219 series is also fully compatible with low
ESR ceramic capacitors, reducing cost and improving output stability.
Operating Voltage Range
Output Voltage Range
Highly Accurate
Low Power Consumption
Standby Current
High Ripple Rejection
Operating Temperature Range
Less than 0.1µA (TYP.)
65dB (10kHz)
O
O
- 40 C to 85 C
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.
The CE function allows the output of regulator to be turned off,
resulting in greatly reduced power consumption.
Low ESR Ceramic Compatible
Ultra Small Packages
Ceramic Capacitor
SOT-25 (SOT-23-5)
SOT-89
USP-6B
The XC6219 series is available in the SOT-25 (SOT-23-5), SOT-89
or USP-6B ‘chip-scale’ package. Measuring only 2.0mm x 1.8mm
the USP-6B is perfect for applications where PCB area is critical.
ꢀTYPICAL APPLICATION CIRCUIT
ꢀTYPICAL PERFORMANCE CHARACTERISTICS
ꢁRipple Rejection Rate
XC6219x302
VIN=3.0V, DC+1Vp-pAC
IOUT=50mA, CL=1uF (ceramics)
100
90
80
70
60
50
40
30
20
10
0
VOUT
NC
VIN
VSS
CE
1
2
5
4
CL
µ
1 F
3
CIN
µ
1 F
SOT-25 (SOT-23-5)
0.01
0.1
1
10
100
Ripple Frequency f (kHz)
Data Sheet
1
R000026