XC6223
Series
■GENERAL
DESCRIPTION
ETR0339-005
Built-in Inrush Current Protection, 300mA High Speed LDO Voltage Regulator
The XC6223 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, a
phase compensation circuit, a thermal shutdown circuit and an inrush current protection circuit.
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 output stabilization capacitor C
L
is also compatible with low ESR ceramic capacitors.
The output voltage is selectable in 0.05V increments within the range of 1.2V to 4.0V which fixed by laser trimming
technologies. The over current protection circuit and the thermal shutdown circuit are built-in. These two protection circuits
will operate when the output current reaches current limit level or the junction temperature reaches temperature limit level.
■APPLICATIONS
●Digital
still cameras
●Cell
phones
●Portable
games
●Camera
modules
●IC
recorders
●Portable
media players
●Bluetooth
●Wireless
LAN
●Terrestrial
digital TV tuners
●Cordless
phones
■FEATURES
Maximum Output Current
Input Voltage Range
Output Voltages
: 300mA
: 1.6½5.5V
: 2.0½4.0V
（Accuracy
±1%）
1.2½1.95V
（Accuracy
±20mV）
0.05V increments
: 200mV＠I
OUT
=300mA (V
OUT
=3.0V)
: 100μA
: 0.1μA
: 80dB＠f=1kHz
: Current Limit（400mA）
Short Circuit Protection
Over Heat Protection
Inrush Current Protection
: C
IN
=1.0μF, C
L
=1.0μF
: Active High
C
L
High Speed Discharge
: USPQ-4B03
USP-4
SSOT-24
SOT-25
SOT-89-5
: EU RoHS Compliant, Pb Free
Dropout Voltage
Low Power Consumption
Stand-by Current
High Ripple Rejection
Protection Circuits
Low ESR Capacitors
CE Function
Small Packages
Environmentally Friendly
■TYPICAL
APPLICATION CIRCUIT
■
TYPICAL PERFORMANCE
CHARACTERISTICS
tr = tf = 0.5μs, Ta = 25℃, I
OUT
= 1⇔150mA
V
IN
= 3.5V, C
IN
= 1μF (ceramic), C
L
= 1μF (ceramic)
XC6223x251
2.60
Output Voltage: V
OUT
[V]
2.55
2.50
2.45
2.40
2.35
2.30
2.25
2.20
Time [20μs/div]
Output Current
Output Voltage
400
300
250
200
150
100
50
0
Output Current Iout[mA]
350
1/36
XC6223
Series
■PIN
CONFIGURATION
*The dissipation pad for the USPQ-4B03,USP-4 packages should be solder-plated in reference mount pattern and metal masking so as to
enhance mounting strength and heat release. If the pad needs to be connected to other pins, it should be connected to the V
SS
(No. 2) pin.
■PIN
ASSIGNMENT
PIN NUMBER
USPQ-4B03
4
1
2
3
-
USP-4
4
1
2
3
-
SSOT-24
4
3
2
1
-
SOT-25
1
5
2
3
4
SOT-89-5
4
5
2
3
1
PIN NAME
V
IN
V
OUT
V
SS
CE
NC
FUNCTIONS
Power Input
Output
Ground
ON/OFF Control
No Connection
■PIN
FUNCTION ASSIGNMENT
CE Ethics Condition
H
L
OPEN
IC Operation State
ON/OFF
Operation ON
Operation
OFF(Stand-by)
*
* Undefined state in XC6223 A/B/E/F. On the other hand, Operation OFF states in XC6223C/D/G/H because that an internal
pull-down resister maintains the CE pin voltage to be low.
2/36
XC6223
Series
■ABSOLUTE
MAXIMUM RATINGS
PARAMETER
Input Voltage
Output Current
Output Voltage
CE Input Voltage
USPQ-4B03
USP-4
Power Dissipation
SSOT-24
SOT-25
SOT-89-5
Operating Temperature Range
Storage Temperature Range
(*1) : I
OUT
≦Pd
/ (V
IN
-V
OUT
)
(*2) : The power dissipation figure shown is PCB mounted.
Please refer to page 26½29 for details.
SYMBOL
V
IN
I
OUT
V
OUT
V
CE
RATINGS
V
SS
-0.3½+7.0
500
(*1)
V
SS
-0.3½V
IN
+0.3
V
SS
-0.3½+7.0
100
(*2)
550 (PCB mounted)
120
(*2)
1000 (PCB mounted)
150
500 (PCB mounted)
(*2)
250
(*2)
600 (PCB mounted)
500
1300 (PCB mounted)
(*2)
-40½+85
-55½+125
UNITS
V
mA
V
V
Pd
mW
Topr
Tstg
℃
℃
5/36
PCB设计
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