XC6222
Series
700mA High Speed LDO Regulator
ETR0344-007
■GENERAL
DESCRIPTION
The XC6222 series is a highly accurate, low noise, high ripple rejection, low dropout, and low power consumption high speed
voltage regulator. The series consists of a voltage reference, an error amplifier, a driver transistor, a current limiter, a thermal
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 VOUT pin will quickly return to the VSS 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.
■APPLICATIONS
●
●
●
●
●
●
USB Products
CD/DVD/HDD drives
Mobile phones
Portable game consoles
Camera modules
Electronic dictionaries
■FEATURES
: 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)
Low Power Consumption
: 100μA
High Ripple Rejection
: 65dB @ 1kHz
Low ESR Capacitor
: Ceramic capacitor
Chip Enable (CE)
: Active High, C
L
discharge
Standby Current below 0.1μA
Operating Ambient Temperature
: -40℃~+85℃
Packages
: USP-6C, SOT-25, SOT-89-5
: EU RoHS Compliant, Pb Free
Environmentally Friendly
Maximum Output Current
Dropout Voltage
Operating Voltage Range
Output Voltage
Accuracy
■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)
1/27
XC6222
Series
■BLOCK
DIAGRAMS
* Diodes inside the circuits are ESD protection diodes and parasitic diodes.
■PRODUCT
CLASSIFICATION
●Ordering
Information
XC6222①②③④⑤⑥-⑦
DESIGNATOR
ITEM
SYMBOL
A
B
C
D
(The Recommended Type)
08½50
1
B
ER-G
MR-G
PR-G
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 (3,000/Reel)
SOT-25 (3,000/Reel)
SOT-89-5 (1,000/Reel)
①
Type of CE
②③
Output Voltage
Output Voltage
Accuracy
④
⑤⑥-⑦
(*1)
Packages
(Order Unit)
(*1)
The “-G” suffix denotes Halogen and Antimony free as well as being fully RoHS compliant.
2/27
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
■ABSOLUTE
MAXIMUM RATINGS
PARAMETER
Input Voltage
Output Current
Output Voltage
CE Input Voltage
USP-6C
Power Dissipation
SOT-25
SOT-89-5
Operating Ambient Temperature
Storage Temperature
*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
1300
（PCB
mounted）
(*2)
-40½+85
-55½+125
Please refer to page 23 to 25 for details.
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.
3/27
XC6222
Series
■ELECTRICAL
CHARACTERISTICS
●XC6222
Series
PARAMETER
Output Voltage
SYMBOL
V
OUT(E)
(*2)
Ta=25℃
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
CIRCUIT
①
-0.02
(*3)
+0.02
(*3)
Output Current
Load Regulation
Dropout Voltage
(*5)
Supply Current
Stand-by Current
I
OUTMAX
ΔV
OUT
V
dif
I
SS
I
STBY
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
Line Regulation
ΔV
OUT
/
(ΔV
IN
・V
OUT
)
-
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
Power Supply
Rejection Ratio
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 Curren
(*6)
V
OUT
Pin Sink Current
(*7)
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
(*8)
Junction Temperature
Junction Temperature
V
IN
=6.0V, V
OUT
=4.0V, V
CE
=V
SS
XC6222B/D Series
(*9)
-0.1
17.7
-0.1
-
-
-
-
-
370
Thermal Shutdown
Detect Temperature
Thermal Shutdown
Release Temperature
C
L
Discharge
Resistance
(* 9)
T
TSD
T
TSR
R
DCHG
4/27
XC6222
Series
■ELECTRICAL
CHARACTERISTICS (Continued)
NOTE:
* 1: Unless otherwise stated, input voltage is V
IN
=V
OUT(T)
＋1.0V.
* 2: V
OUT (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 V
OUT(T)
＋1.0V
is supplied to the V
IN
pin while maintaining a certain I
OUT
.
* 3: The relation between V
OU T (E)
and V
OUT (T)
is shown in the voltage chart E-0 and E-1.
* 4: V
OUT (T)
is nominal output voltage
* 5: Vdif = {V
IN1
-V
OUT1
}
V
OUT1
equals 98% of the output voltage when amply stabilized V
OUT (T)
+1.0V are supplied to the V
IN
pin.
V
IN1
is the input voltage when V
OUT1
appears at the V
OUT
pin while input voltage is gradually decreased.
* 6: Reverse current (I
REV
) flows from V
OUT
to V
IN
.
* 7: V
OUT
pin sink current (I
REVS
) flows from V
OUT
to V
SS
.
* 8: 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
.
* 9: For the XC6222B/D series only.
The XC6222A/C series discharges via two resistors R1 and R2 shown in the block diagram.
5/27
PCB设计
