XC6224
Series
150mA High Speed LDO Voltage Regulator with ON/OFF Switch
ETR0340-004
■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 (C
L
) 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 C
L
to be discharged via the internal switch, and as a result the V
OUT
pin
quickly returns to the V
SS
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
●Wireless
LAN
●Terrestrial
digital TV tuners
■FEATURES
: 150mA
: 1.2V½3.6V
: ±1.5％ (V
OUT
=1.25V½3.0V)
: ±20mV (V
OUT
= 0.8V½1.20V)
Low Power Consumption
: 33μA (TYP.)
Stand-by Current
: 0.1μA
High Ripple Rejection
: 70dB@1kHz
Dropout Voltage
: 210mV＠150mA (V
OUT
=2.8V)
Operating Temperature Range
: -40℃½+85℃
Protection Circuits
: Current Limiter
Short Circuit Protection
ON/OFF Control
: Active High
C
L
Auto Discharge Function
Output Capacitor
: Low ESR Capacitor
Packages
: USPN-4B02
SSOT-24
SOT-25
Environmentally Friendly
: EU RoHS Compliant, Pb Free
Maximum Output Current
Operating Voltage Range
High Accuracy
■TYPICAL
APPLICATION CIRCUIT
■TYPICAL
PERFORMANCE
CHARACTERISTICS
XC6224x181
I
OUT
= 1mA ⇔ 150mA, tr=tf=0.5μs,
V
IN
= 2.80V, Ta=25℃, C
IN
=C
L
=0.47μF
500
450
Output Current: I
OUT
[mA]
400
350
300
250
200
150
100
50
0
1.95
1.90
1.80
1.75
1.70
1.65
1.60
1.55
1.50
1.45
Output Voltage: V
OUT
[V]
1.85
Output Voltage
Output Current
Time [10us/div]
1/26
XC6224
Series
■BLOCK
DIAGRAMS
(1) XC6224Axxxxx
(2) XC6224Bxxxxx
VIN
CFB
CurrentLimit
+
Error
Amp
-
ON/OFF
Control
each
circuit
Voltage
Reference
VOUT
VIN
CFB
CurrentLimit
VOUT
R1
Rdischg
R1
Rdischg
R2
CE
VSS
CE
ON/OFF
Control
+
Error
Amp
-
each
circuit
Voltage
Reference
R2
CE
CE
VSS
■ABSOLUTE
MAXIMUM RATINGS
PARAMETER
Input Voltage
Output Current
Output Voltage
CE Input Voltage
USPN-4B02
Power Dissipation
SSOT24
SOT-25
Operating Temperature Range
Storage Temperature Range
Topr
Tstg
Pd
SYMBOL
V
IN
I
OUT
V
OUT
V
CE
RATINGS
V
SS
-0.3½+4.6
180
(*1)
V
SS
-0.3½V
IN
+0.3
V
SS
-0.3½4.6
100
550 (PCB mounted)
(*2)
150
500 (PCB mounted)
(*2)
250
600 (PCB mounted)
(*2)
-40½+85
-55½+125
UNITS
V
mA
V
V
mW
℃
℃
*1: Please use within the range of I
OUT
≦Pd／（V
IN
－V
OUT
）
*2: This is a reference data taken by using the test board.
Please refer to page 20∼22 for details.
3/26
XC6224
Series
■ELECTRICAL
CHARACTERISTICS
●XC6224Axxxxx
PARAMETER
SYMBOL
V
OUT(E)
（
*3
）
Ta=25℃
CONDITIONS
V
OUT
（
T
）
≧1.25V
V
CE
=V
IN,
I
OUT
=10mA
V
OUT
（
T
）
≦1.2V
V
CE
=V
IN
, I
OUT
=10mA
MIN.
V
OUT(T)
×0.985
-20mV
150
-
(*7)
(*2)
TYP.
V
OUT(T)
(*2)
MAX.
V
OUT(T)
×1.015
+20mV
-
20
(*7)
(*2)
UNITS
CURCUITS
Output Voltage
V
OUT(T)
(*2)
V
①
Maximum Output
Current
Load Regulation
Dropout Voltage
(*4)
I
OUTMAX
ΔV
OUT
Vdif
I
DD
I
STBY
V
CE
=V
IN
V
CE
=V
IN
0.1mA≦I
OUT
≦150mA
I
OUT
=150mA
V
CE
=V
IN,
V
IN
=V
OUT(E)
×0.98
V
CE
=V
IN,
I
OUT
=0mA
V
CE
=V
SS
V
OUT
（
T
）
≧1.10V
V
OUT(T)
+0.5V≦V
IN
≦3.6V
(*3)
-
5
E-1
mA
mV
mV
①
①
①
②
②
Supply Current
Stand-by Current
-
33
0.01
77
0.4
μA
μA
Line Regulation
ΔV
OUT
/
（ΔV
IN
・V
OUT
）
V
CE
=V
IN
, I
OUT
=10mA
V
OUT
（
T
）
≦1.05V
1.6V≦V
IN
≦3.6V
V
CE
=V
IN
, I
OUT
=10mA
(*2)
-
0.04
0.37
%/V
①
(*2)
Input Voltage
Output Voltage
Temperature
Characteristics
V
IN
ΔV
OUT
/
（ΔTa・V
OUT
）
V
CE
=V
IN,
I
OUT
=30mA
-40℃≦Ta≦85℃
V
CE
=V
IN
・When
0.80V≦V
OUT
（
T
）
≦2.60V,
V
IN
=3.0V＋0.5Vp-pAC
・2.65V≦V
OUT
（
T
）
≦3.00V
V
IN
=3.3V+0.25Vp-pAC
(*2)
I
OUT
=30mA, f=1kHz
V
CE
=V
IN
V
CE
=V
IN,
V
OUT
is connected to V
SS
(*1)
1.2
-
-
±100
3.6
-
V
ppm/℃
①
①
Ripple Rejection Rate
PSRR
-
70
-
dB
③
Current Limit
Short Current
CE High Level Voltage
CE Low Level Voltage
CE High Level
Current
CE High Level
Current
C
L
Discharge
Resistance
I
LIM
I
SHORT
V
CEH
V
CEL
I
CEH
I
CEL
R
DCHG
150
-
1.0
-
250
35
-
-
0
0
450
-
-
3.6
0.3
0.1
0.1
-
mA
mA
V
V
μA
μA
Ω
①
①
④
④
④
④
①
V
CE
=V
IN
A Type
V
CE
=V
SS
V
IN
=3.6V
,
V
CE
=V
SS
-0.1
-0.1
-
NOTE:
*1: Unless otherwise specified, input voltage conditions are;
0.80V≦V
OUT(T)
≦2.60V ：
{V
IN
=V
OUT(T)
+1.0V}
2.65V≦V
OUT(T)
≦2.80V ：
{V
IN
=3.3V}
2.85V≦V
OUT(T)
≦3.00V ：
{V
IN
=3.5V}
*2: V
OUT(T)
: Nominal output voltage
*3: V
OUT(E)
: Effective output voltage
This output voltages are measured at the constant current when the input voltages are stable as Note 1.
{*5}
{*6}
*4: Vdif＝{V
IN1
－V
OUT1
}
*5: V
IN1
=The input voltage when V
OUT1
appears as input voltage is gradually decreased.
*6: V
OUT1
=A voltage equal to 98% of the output voltage whenever an amply stabilized I
OUT
{V
OUT(T)
+1.0V} is input
*7: V
OUT(T)
±20mV is the specification value of output voltage where V
OUT(T)
≦1.20V
4/26
XC6224
Series
■ELECTRICAL
CHARACTERISTICS (Continued)
●XC6224Bxxxxx
PARAMETER
SYMBOL
V
OUT(E)
（
*3
）
Ta=25℃
CONDITIONS
V
OUT
（
T
）
≧1.25V
V
CE
=V
IN
, I
OUT
=10mA
V
OUT
（
T
）
≦1.2V,
V
IN
=2.5V
V
CE
=V
IN
, I
OUT
=10mA
(*1)
MIN.
V
OUT(T)
×0.985
-20mV
150
-
(*7)
(*2)
TYP.
V
OUT
(T)
V
OUT
(T)
-
5
(*2)
MAX.
V
OUT(T)
×1.015
+20mV
-
20
(*7)
(*2)
UNITS
CURCUITS
Output Voltage
V
(*2)
①
Maximum Output
Current
Load Regulation
Dropout Voltage
(*4)
I
OUTMAX
ΔV
OUT
V
CE
=V
IN
V
CE
=V
IN
mA
mV
①
①
(*1)
0.1mA≦I
OUT
≦150mA
I
OUT
=150mA,
V
CE
=V
IN
V
IN
=V
OUT(E)
×0.98
(*3)
Vdif
E-1
(*1)
mV
①
Supply Current
Stand-by Current
I
DD
I
STBY
V
CE
=V
IN
I
OUT
=0mA
V
CE
=V
SS
V
OUT
（
T
）
≧1.10V
V
OUT(T)
+0.5V≦V
IN
≦3.6V
-
-
33
0.01
77
0.4
μA
μA
②
②
Line Regulation
ΔV
OUT
/
（ΔV
IN
・V
OUT
）
V
CE
=V
IN
、I
OUT
=10mA
V
OUT
（
T
）
≦1.05V
1.6V≦V
IN
≦3.6V
V
CE
=V
IN
、I
OUT
=10mA
(*2)
-
0.04
0.37
%/V
①
(*2)
Input Voltage
Output Voltage
Temperature
Characteristics
V
IN
ΔV
OUT
/
（ΔTa・V
OUT
）
V
CE
=V
IN,
I
OUT
=30mA
-40℃≦Ta≦85℃
V
CE
=V
IN
・When
0.80V≦V
OUT
（
T
）
≦2.60V
V
IN
=3.0V＋0.5Vp-pAC
・2.65V≦V
OUT
（
T
）
≦3.00V
V
IN
=3.3V+0.25Vp-pAC
I
OUT
=30mA、f=1kHz
(*2)
V
CE
=V
IN
V
CE
=V
IN,
V
OUT
is connected to V
SS
(*1)
1.2
-
-
±100
3.6
-
V
ppm/
℃
①
①
Ripple Rejection Rate
PSRR
-
70
-
dB
③
Current Limit
Short Current
CE High Level
Voltage
CE Low Level Voltage
CE High Level
Current
CE High Level
Current
C
L
Discharge
Resistance
I
LIM
I
SHORT
V
CEH
V
CEL
I
CEH
I
CEL
R
DCHG
150
-
1.0
-
250
35
-
-
5.5
0
450
-
-
3.6
0.3
13.0
0.1
-
mA
mA
V
V
μA
μA
Ω
①
①
④
④
④
④
①
V
CE
=V
IN
B Type
V
CE
=V
SS
V
IN
=3.6V
,
V
CE
=V
SS
-
-0.1
-
NOTE:
*1: Unless otherwise specified, input voltage conditions are;
0.80V≦V
OUT(T)
≦2.60V ：
{V
IN
=V
OUT(T)
+1.0V}
2.65V≦V
OUT(T)
≦2.80V ：
{V
IN
=3.3V}
2.85V≦V
OUT(T)
≦3.00V ：
{V
IN
=3.5V}
*2: V
OUT(T)
: Nominal output voltage
*3: V
OUT(E)
: Effective output voltage
This output voltages are measured at the constant current when the input voltages are stable as Note 1.
{*5}
{*6}
*4: Vdif＝{V
IN1
－V
OUT1
}
*5: V
IN1
=The input voltage when V
OUT1
appears as input voltage is gradually decreased.
*6: V
OUT1
=A voltage equal to 98% of the output voltage whenever an amply stabilized I
OUT
{V
OUT(T)
+1.0V} is input
*7: V
OUT(T)
±20mV is the specification value of output voltage where V
OUT(T)
≦1.20V.
5/26
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