XC6503
Series
■GENERAL
DESCRIPTION
ETR0346-009
C
L
Capacitor-Less 500mA Low Power Consumption High Speed LDO Regulator
The XC6503 series is a 500mA high speed CMOS LDO regulator that can provide stable output voltages even without a load
capacitor C
L
. The devices are available in fixed output voltage from 1.2V to 5.0V in 0.05V increments
The C
L
capacitor-less is possible because phase compensation is carried out internally unlike other LDOs where it is done
externally. It results in saving board design space. The current limit fold-back circuit and thermal shutdown circuit work as
protection circuit. The XC6503P is a 3-Terminal regulator and the XC6503A/B/C/D has a chip enable function, which enables
the entire circuit to be turned off by a low level input signal to the CE pin.
When a C
L
capacitor is used, the IC can discharge the electric charge stored at the output capacitor through the internal
switch while in standby state, and as a result the V
OUT
quickly returns to the V
SS
level.
■APPLICATIONS
●Smart
phones / Mobile phones
●Portable
game consoles
●Modules
(wireless, camera, etc.)
●Bluetooth
modules
●Digital
TV tuner modules
■FEATURES
Maximum Output Current
Input Voltage Range
Output Voltage Range
Output Accuracy
Temperature Stability
Dropout Voltage
Low Power Consumption
High PSRR
Protection Current
:
:
:
:
:
:
:
:
:
500mA
1.7V
½
6.0V
1.2V
½
5.0V (0.05V increments)
±1.0% (2.0V½5.0V)
±20mV (1.2V½1.95V)
±30ppm/℃
190mV＠V
OUT
=2.8V, I
OUT
=300mA
15μ (TYP.), 0.1μ (in standby)
A
A
55dB＠1kHz, V
OUT
=2.8V
Current Limiter (630mA TYP.）
Short-circuit Protection
Thermal Shutdown
C
L
Capacitor-Less
Operating Ambient Temperature
Packages
Environmentally Friendly
:
:
:
:
Internal Phase Compensation
-40℃½+85℃
USP-4, SOT-25, SOT-89-5 (XC6503A-D)
SOT-89 (XC6503P)
EU RoHS Compliant, Pb Free
■TYPICAL
APPLICATION CIRCUIT
■TYPICAL
PERFORMANCE
CHARACTERISTICS
V
IN
C
IN
:0.1μF(ceramic)
V
SS
1
5
V
OUT
CL:0.1μF(ceramic)
2
CE
3
4
NC
SOT-25
(TOP VIEW)
CE
3
2
V
SS
V
OUT
CL:0.1μF(ceramic)
V
IN
4
1
C
IN
:0.1μF(ceramic)
USP-4
(TOP VIEW)
1/22
XC6503
Series
■PRODUCT
CLASSIFICATION
1) Ordering Information
XC6503①②③④⑤⑥-⑦
(
*1
)
DESIGNATOR
ITEM
SYMBOL
A
B
DESCRIPTION
①
Type of Regulator
C
D
P
Selection Guide
②③
Output Voltage
12½50
1
ex.)
②=2, ③=8
→ 2.8V
0.1V increments
±0.02V (1.2½1.9V)、±1% (2.0½5.0V)
ex.) 1.80V
→
②=1、③=8、④=1
0.05V increments
④
Output Accuracy
A
GR-G
±0.02V(1.25½1.95V)、±1%(2.05½4.95V)
ex.) 1.85V
→
②=1、③=8、④=A
USP-4 (3,000pcs/Reel)
*A/B/C/D Type
SOT-25 (3,000pcs/Reel)
*A/B/C/D Type
SOT-89 (1,000pcs/Reel)
* P Type
SOT-89-5 (1,000pcs/Reel)
*A/B/C/D Type
⑤⑥-⑦
(*1)
Packages (Order Unit)
MR-G
PR-G
(*1)
The “-G” suffix denotes Halogen and Antimony free as well as being fully EU RoHS compliant.
2)
Selection Guide
TYPE
A
B
C
D
P
CURRENT
LIMITTER
Yes
Yes
Yes
Yes
Yes
SHORT
PROTECTION
Yes
Yes
Yes
Yes
Yes
THERMAL
SHUTDOWN
PROTECTION
Yes
Yes
Yes
Yes
Yes
CE Pull-down
RESISTOR
No
No
Yes
Yes
No
C
L
DISCHARGE
No
Yes
No
Yes
No
CE PIN
Yes
Yes
Yes
Yes
No
3/22
XC6503
Series
■PIN
CONFIGURATION
V
OUT
5
V
OUT
5
NC
4
V
IN
2
4
V
SS
2
V
SS
2
V
OUT
1
3 CE
4 V
IN
1
V
IN
2
V
SS
3
CE
1
NC
2
V
SS
3
CE
1
V
OUT
2
V
SS
3
V
IN
USP-4
(BOTTOM VIEW)
SOT-25
(TOP VIEW)
SOT-89-5
(TOP VIEW)
SOT-89
(TOP VIEW)
*The dissipation pad for the USP-4 package 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
USP-4
4
1
2
3
-
SOT-25
1
5
2
3
4
SOT89-5
4
5
2
3
1
SOT-89
3
1
2
-
-
PIN NAME
V
IN
V
OUT
V
SS
CE
NC
FUNCTIONS
Power Input
Output
Ground
ON/OFF Control
No Connection
■PIN
FUNCTION ASSIGNMENT
XC6503 Series (A/B Type)
PIN NAME
LOGIC
L
CE
H
OPEN
IC OPERATION
Operation OFF
Operation ON
Unstable
XC6503 Series (C/D Type)
PIN NAME
LOGIC
L
CE
H
OPEN
IC OPERATION
Operation OFF
Operation ON
Operation OFF
* Please avoid the state of OPEN, and connect CE pin to any arbitrary voltage.
4/22
XC6503
Series
■ABSOLUTE
MAXIMUM RATINGS
PARAMETER
Input Voltage
Output Current
Output Voltage
CE Input Voltage
USP-4
SOT-25
Power Dissipation
SOT-89
Pd
SYMBOL
V
IN
I
OUT
V
OUT
V
CE
RATINGS
V
SS
-0.3½V
SS
+6.5
850
(*1)
V
SS
-0.3½V
IN
+0.3≦V
SS
+6.5
V
SS
-0.3½V
SS
+6.5
120
1000(40mm x 40mm Standard)
(*2)
250
600(40mm x 40mm Standard)
(*2)
500
1000(40mm x 40mm Standard)
(*2)
500
1300(40mm x 40mm Standard)
(*2)
1750(JESD51-7 board)
(*2)
-40½+85
-55½+125
Ta=25℃
UNITS
V
mA
V
V
mW
SOT-89-5
Operating Ambient Temperature
Storage Temperature
(*1)
(*2)
Topr
Tstg
℃
℃
Pd＞（V
IN
-V
OUT
）×I
OUT
The power dissipation figure shown is PCB mounted and is for reference only
The mounting condition is please refer to PACKAGING INFORMATION.
5/22
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