XC6222
Series
700mA High Speed LDO Regulator with Reverse Current Protection
ETR0344-005
■GENERAL
DESCRIPTION
The XC6222 series is a highly accurate, low noise, high ripple rejection, low dropout, and low power consumption high speed
CMOS voltage regulator. The series consists of a voltage reference, an error amplifier, a driver transistor, a current limiter, a
thermal protection circuit, a reverse current protection circuit and a phase compensation circuit.
The CE function enables the entire circuit to be placed in a stand-by state by inputting a low level signal to the CE pin. In this
stand-by mode, the electric charge at the output capacitor (C
L
) will be discharged by the internal auto-discharge switch, and as
a result the V
OUT
pin will quickly return to the V
SS
level.
Over-current protection and thermal protection circuits are integrated. The protection circuit starts to operate when either output
current reaches the current limit level or junction temperature reaches the temperature limit. With the reverse current
protection function, the reverse current flow is prohibited when V
OUT
voltage is higher than V
IN
voltage.
The protection diode of IC is not necessary.
■APPLICATIONS
●
●
●
●
●
●
USB Products
CD/DVD/HDD drives
Mobile phones
Portable game consoles
Camera modules
Electronic dictionaries
■FEATURES
Maximum Output Current
Dropout Voltage
Operating Voltage Range
Output Voltages
Accuracy
Low Power Consumption
High Ripple Rejection
Operating Temperature
Low ESR Capacitor
Chip Enable(CE)
Packages
Environmentally Friendly
: 700mA
: 120mV @I
OUT
=300mA(V
OUT
=3.0V)
: 1.7V ~ 6.0V
: 0.8V~5.0V (0.05V increments)
: +1% (V
OUT
＞2.0V)
+0.02V (V
OUT
≦2.0V)
: 100μA (V
OUT
=3.0V)
: 65dB @ 1kHz
: -40℃~+85℃
: Ceramic capacitor
: Active High,C
L
discharge
Standby Current below 0.1μA
: USP-6C, SOT-25, SOT-89-5
: EU RoHS Compliant, Pb Free
■TYPICAL
APPLICATION CIRCUIT
■TYPICAL
PERFORMANCE
CHARACTERISTICS
●
Load Transient Response
●負荷過渡応答特性例
XC6222x151
tr=tf=5μs,V
IN
=2.5V, Ta=25℃
V
OUT
=10→300mA, C
IN
=1.0μF(ceramic), C
L
=6.8μF(ceramic)
1.6
Output Voltage：V
OUT
(V)
1000
Output Voltage
1.5
1.4
1.3
1.2
1.1
800
600
Output Current
400
200
0
Time：100μs/div
*C
L
：
2.2μF or higher (V
OUT
=2.5½5.0V)
4.7μF or higher (V
OUT
=2.1½2.45V)
6.8μF or higher (V
OUT
=0.8½2.05V)
Output Current：I
OUT
(mA)
1/26
XC6222
Series
■PIN
CONFIGURATION
*The dissipation pad for the USP-6C package should be solder-plated in recommended mount
pattern and metal masking so as to enhance mounting strength and heat release.
to be connected to other pins, it should be connected to the V
SS
(No. 5) pin.
If the pad needs
■PIN
ASSIGNMENT
PIN NUMBER
USP-6C
SOT-25
SOT-89-5
1
3
2,4
5
6
1
5
4
2
3
4
5
3
2
1
PIN NAME
V
IN
V
OUT
NC
V
SS
CE
FUNCTIONS
Power Input
Output
No connection
Ground
ON/OFF Control
■PRODUCT
CLASSIFICATION
●Ordering
Information
XC6222①②③④⑤⑥-⑦
(
*
1)
DESIGNATOR
DESCRIPTION
SYMBOL
A
B
C
D
(The Recommended Type)
DESCRIPTION
without CE Pull-down resistor, without C
L
discharge
without CE Pull-down resistor , with C
L
discharge
with CE Pull-down resistor, without C
L
discharge
with CE Pull-down resistor, with C
L
discharge
e.g. 2.8V
→
②=2, ③=8
Output Voltage Range : 0.8½5.0 V (0.05V increments)
nd
Output voltage {x.x0v} (the 2 decimal place is “0”)
Accuracy±1% (V
OUT
＞2.0V),
±0.02V(V
OUT
≦2.0V)
Output voltage {x.x5v} (the 2
nd
decimal place is “5”)
Accuracy±1% (V
OUT
＞2.0V),
±0.02V(V
OUT
≦2.0V)
USP-6C
SOT-25
SOT-89-5
①
Type of CE
②③
Output Voltage
Output Voltage
Accuracy
08½50
1
B
ER-G
MR-G
PR-G
④
⑤⑥-⑦
Packages
Taping Type
(*2)
(*1)
The “-G” suffix indicates that the products are Halogen and Antimony free as well as being fully RoHS compliant.
The device orientation is fixed in its embossed tape pocket.
For reverse orientation, please contact your local Torex sales office or representative.
(Standard orientation:
⑤R-⑦,
Reverse orientation:
⑤L-⑦)
(*2)
2/26
XC6222
Series
■BLOCK
DIAGRAMS
* Diodes inside the circuits are ESD protection diodes and parasitic diodes.
■ABSOLUTE
MAXIMUM RATINGS
Ta=25℃
PARAMETER
Input Voltage
Output Current
Output Voltage
CE Input Voltage
USP-6C
Power Dissipation
SOT-25
SOT-89-5
Operating Temperature Range
Storage Temperature Range
*1.
*2.
SYMBOL
V
IN
I
OUT
V
OUT
V
CE
RATINGS
-0.3½+6.5
1400
(*1)
V
SS
-0.3½+6.5
V
SS
-0.3½+6.5
120
1000
（PCB
mounted）
(*2)
250
(*2)
600
（PCB
mounted）
500
(*2)
1300
（PCB
mounted）
-40½+85
-55½+125
UNITS
V
mA
V
V
Pd
mW
Topr
Tstg
℃
℃
Please use within the range of Pd > {(V
IN
-V
OUT
) × I
OUT
}
The power dissipation figure shown is PCB mounted.
Please refer to page 22 to 24 for details.
3/26
XC6222
Series
■ELECTRICAL
CHARACTERISTICS
●XC6222
Series
PARAMETER
Output Voltage
SYMBOL
V
OUT(E)
(*2)
Output Current
Load Regulation
Dropout Voltage
(*5)
Supply Current
Stand-by Current
I
OUTMAX
ΔV
OUT
V
dif
I
SS
I
STBY
Line Regulation
ΔV
OUT
/
(ΔV
IN
・V
OUT
)
CONDITIONS
V
OUT(T)
＞2.0V
V
CE
=V
IN
, I
OUT
=10mA
V
OUT
≦2.0V
V
CE
=V
IN
, I
OUT
=10mA
V
CE
=V
IN
, V
IN
=V
OUT(T)
+1.0V
V
OUT(T)
≧1.5V
V
CE
=V
IN
, V
IN
=2.5V
V
OUT(T)
＜1.5V
V
CE
=V
IN
, 0.1mA≦I
OUT
≦300mA
I
OUT
=300mA, V
CE
=V
IN
V
IN
=V
CE
=V
OUT(T)
+1.0V、
I
OUT
=0mA
V
IN
=6.0V, V
CE
=V
SS
V
OUT(T)
+0.5V≦V
IN
≦6.0V
：V
OUT(T)
≧1.0V
V
CE
=V
IN
, I
OUT
=30mA
1.5V≦V
IN
≦6.0V
：V
OUT(T)
≦0.95V
V
CE
=V
IN
, I
OUT
=30mA
V
CE
=V
IN
, I
OUT
=30mA
-40℃≦Ta≦85℃
V
OUT(T)
≧1.0V
V
IN
=½V
OUT(T)
+1.0½V
DC
+0.5Vp-p
AC
V
CE
=V
IN
、I
OUT
=30mA、f=1kHz
V
OUT(T)
＜1.0V
V
IN
=2.0V
DC
+0.5Vp-p
AC
V
CE
=V
IN
, I
OUT
=30mA, f=1kHz
V
CE
=V
IN
, V
IN
=V
OUT(T)
+1.0V
V
OUT(T)
≧1.5V
V
CE
=V
IN
, V
IN
=2.5V
V
OUT(T)
＜1.5V
V
CE
=V
IN
Short V
OUT
to V
SS
level
MIN.
×0.99
(*3)
TYP.
V
OUT(T)
(*4)
MAX.
×1.01
(*3)
UNITS
V
Ta=25℃
CIRCUIT
①
-0.02
(*3)
+0.02
(*3)
700
-
-
mA
mV
mV
μA
μA
①
①
①
②
②
see the Voltage Chart E-1
see the Voltage Chart E-2
-
-
100
0.01
220
0.1
-
0.01
0.1
%/V
①
Input Voltage
Output Voltage
Temperature
Characteristics
V
IN
ΔV
OUT
/
(ΔTa
・V
OUT
)
1.7
-
-
±100
6.0
-
V
ppm/℃
①
①
Ripple Rejection Rate
PSRR
-
65
-
dB
③
Limit Current
I
LIM
720
950
-
mA
①
Short Current
CE High Level Voltage
CE Low Level Voltage
CE High Level Current
CE High Level Voltage
Reverse Current
V
OUT
Pin Sink Current
(*9)
I
SHORT
V
CEH
V
CEL
I
CEH
I
CEL
I
REV
I
REVS
-
1.2
-
55
-
-
-
24
-
0.01
95
2.8
150
125
530
-
6.0
0.3
0.1
36.9
0.1
1.5
215
5.3
-
-
690
mA
V
V
μA
μA
μA
μA
μA
μA
℃
℃
Ω
①
①
①
①
①
①
①
①
①
①
①
①
V
CE
=V
IN
=6.0V, XC6222A/B series
V
CE
=V
IN
=6.0V, XC6222C/D series
V
CE
=V
SS
V
IN
=0V, V
OUT
=V
OUT(T)
, V
CE
= V
IN
or V
SS
V
IN
=V
CE
=5.0V, V
OUT
=6.0V
V
IN
=5.0V, V
CE
=V
SS
, V
OUT
=6.0V,
XC6222A/C Series
(*10)
Junction Temperature
Junction Temperature
V
IN
=6.0V, V
OUT
=4.0V, V
CE
=V
SS
XC6222B/D Series
(*1
１
)
-0.1
17.7
-0.1
-
-
-
-
-
370
Thermal Shutdown
Detect Temperature
Thermal Shutdown
Release Temperature
C
L
Discharge
Resistance
(* 11)
T
TSD
T
TSR
R
DCHG
4/26
XC6222
Series
■ELECTRICAL
CHARACTERISTICS (Continued)
NOTE:
* 1: Unless otherwise stated, input voltage is VIN=VOUT(T)＋1.0V.
* 2: VOUT (E) is effective output voltage (Refer to the voltage chart E-0 and E-1)
It is defined as output voltages when an amply stabilized VOUT (T)
＋1.0V
is supplied to the VIN pin while maintaining a certain
IOUT .
* 3: The relation between VOU T (E) and VOUT (T) is shown in the voltage chart E-0 and E-1.
* 4: VOUT (T) is nominal output voltage
(*7)
(*6)
* 5: Vdif = {VIN1 -VOUT1 }
* 6: VOUT1 equals 98% of the output voltage when amply stabilized VOUT (T) +1.0V are supplied to the V
IN
pin.
* 7: VIN1 is the input voltage when VOUT1 appears at the V
OUT
pin while input voltage is gradually decreased.
* 8: Reverse current (I
REV
) flows from V
OUT
to V
IN
.
* 9: V
OUT
pin sink current (I
REVS
) flows from V
OUT
to V
SS
.
*10: For the XC6222A/C series only.
when CE pin is low.
In the XC6222B/D series, the current flows from the V
OUT
pin to the V
SS
pin via the internal switch
Please also note when the XC6222A/C series
Please do not connect another power supply to the V
OUT
pin.
connects external power supply to the V
OUT
pin, please use it within the range from V
OUT(E)
(actual output voltage value)or more to
6.0V or less. When the voltage less than V
OUT(E)
is applied to the V
OUT
pin by adding a power supply or battery, a low level signal
should be input to the CE pin for chip disable in order to protect a reverse current at V
IN
< V
OUT
.
*11: For the XC6222B/D series only.
The XC6222A/C series discharges via two resistors R1 and R2 shown in the block diagram.
5/26
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