XC6503 Series
ETR03046-009b
CL Capacitor-Less 500mA Low Power Consumption High Speed LDO Regulator
■GENERAL DESCRIPTION
The XC6503 series is a 500mA high speed CMOS LDO regulator that can provide stable output voltages even without a load
capacitor CL. The devices are available in fixed output voltage from 1.2V to 5.0V in 0.05V increments
The CL 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 CL 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 VOUT quickly returns to the VSS level.
■FEATURES
■APPLICATIONS
●Smart phones / Mobile phones
●Portable game consoles
●Modules (wireless, camera, etc.)
●Bluetooth modules
●Digital TV tuner modules
Maximum Output Current
:
500mA
Input Voltage Range
:
1.7V ~ 6.0V
Output Voltage Range
:
1.2V ~ 5.0V (0.05V increments)
Output Accuracy
:
±1.0% (2.0V ~ 5.0V)
Temperature Stability
:
±30ppm/℃
Dropout Voltage
:
190mV@VOUT=2.8V, IOUT =300mA
Low Power Consumption
:
15μA (TYP.), 0.1μA (in standby)
High PSRR
:
55dB@1kHz, VOUT=2.8V
Protection Current
:
Current Limiter (630mA TYP.)
±20mV (1.2V ~ 1.95V)
Short-circuit Protection
Thermal Shutdown
CL Capacitor-Less
:
Internal Phase Compensation
Operating Ambient Temperature
:
-40℃ ~ 85℃
Packages
:
USP-4, SOT-25, SOT-89-5 (XC6503A-D)
Environmentally Friendly
:
SOT-89 (XC6503P)
EU RoHS Compliant, Pb Free
■TYPICAL PERFORMANCE
CHARACTERISTICS
■TYPICAL APPLICATION CIRCUIT
X C6 5 0 3 x2 8 1 xx
5
CIN:0.1μF(ceramic)
VSS
CE
VOUT
300
CL:0.1μF(ceramic)
2
250
3
4
NC
SOT-25
(TOP VIEW)
CE
3
2
VIN
4
1
VSS
VOUT
VIN=3.8V, tr=tf=5μs, IOUT=10⇔150mA, Ta=25℃
CL =0.1μF(ceramic)
without CL
3.4
3.1
OutputVoltage
200
2.8
2.5
150
OutputCurrent
100
2.2
50
1.9
0
1.6
OutputVoltage : VOUT (V)
1
OutputCurrent : I OUT (mA)
VIN
CL:0.1μF(ceramic)
CIN:0.1μF(ceramic)
USP-4
(TOP VIEW)
Time : 40μs/div
1/22
XC6503 Series
■BLOCK DIAGRAMS
XC6503 A Series
XC6503 B Series
VOUT
VIN
VOUT
VIN
CFB
Current Limit
& TSD
R1
+
Error
Amp
-
CE
ON/OFF
Control
CFB
Current Limit
& TSD
each
circuit
RDCHG
+
Error
Amp
-
R2
Voltage
Reference
CE
ON/OFF
Control
each
circuit
R1
R2
Voltage
Reference
/CE
VSS
VSS
XC6503 C Series
XC6503 D Series
VIN
VOUT
VIN
VOUT
CFB
Current Limit
& TSD
R1
+
Error
Amp
-
CE
ON/OFF
Control
CFB
Current Limit
& TSD
+
Error
Amp
-
R2
CE
Voltage
Reference
VSS
each
circuit
ON/OFF
Control
Voltage
Reference
each
circuit
XC6503 P Series
VIN
VOUT
CFB
Current Limit
& TSD
R1
+
Error
Amp
-
R2
Voltage
Reference
VSS
* Diodes inside the circuits are ESD protection diodes and parasitic diodes.
2/22
R1
RDCHG
R2
/CE
VSS
XC6503
Series
■PRODUCT CLASSIFICATION
1) Ordering Information
XC6503①②③④⑤⑥-⑦(*1)
DESIGNATOR
ITEM
SYMBOL
DESCRIPTION
A
B
①
C
Type of Regulator
Selection Guide
D
P
②③
Output Voltage
12~50
ex.) ②=2, ③=8 → 2.8V
0.1V increments
1
④
±0.02V (1.2~1.9V), ±1% (2.0~5.0V)
ex.) 1.80V → ②=1, ③=8、④=1
Output Accuracy
0.05V increments
A
±0.02V(1.25~1.95V), ±1%(2.05~4.95V)
ex.) 1.85V → ②=1, ③=8、④=A
⑤⑥-⑦(*1)
Packages (Order Unit)
GR-G
USP-4 (3,000pcs/Reel) *A/B/C/D Type
MR-G
SOT-25 (3,000pcs/Reel) *A/B/C/D Type
PR-G
(*1)
SOT-89 (1,000pcs/Reel) * P Type
SOT-89-5 (1,000pcs/Reel) *A/B/C/D Type
The “-G” suffix denotes Halogen and Antimony free as well as being fully EU RoHS compliant.
2) Selection Guide
TYPE
CURRENT
LIMITTER
SHORT
PROTECTION
THERMAL
SHUTDOWN
PROTECTION
CE Pull-down
RESISTOR
CL
DISCHARGE
CE PIN
A
B
C
D
P
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Yes
Yes
No
No
Yes
No
Yes
No
Yes
Yes
Yes
Yes
No
3/22
XC6503 Series
■PIN CONFIGURATION
VOUT
V IN
2
5
4
VSS
2
VOUT
5
VSS 2
3 CE
VOUT 1
4 VIN
1
VIN
USP-4
NC
4
2
VSS
3
CE
1
2
3
NC
VSS
CE
SOT-25
(BOTTOM VIEW)
(TOP VIEW)
1
2
3
VOUT
VSS
VIN
SOT-89-5
SOT-89
(TOP VIEW)
(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 VSS (No. 2) pin.
■PIN ASSIGNMENT
PIN NUMBER
PIN NAME
FUNCTIONS
3
VIN
Power Input
1
VOUT
Output
2
2
VSS
Ground
3
-
CE
ON/OFF Control
1
-
NC
No Connection
USP-4
SOT-25
SOT89-5
SOT-89
4
1
4
1
5
5
2
2
3
3
-
4
■PIN FUNCTION ASSIGNMENT
XC6503 Series (A/B Type)
PIN NAME
CE
LOGIC
IC OPERATION
L
Operation OFF
H
Operation ON
OPEN
Unstable
LOGIC
IC OPERATION
L
Operation OFF
H
Operation ON
OPEN
Operation OFF
XC6503 Series (C/D Type)
PIN NAME
CE
* 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
SYMBOL
VIN
IOUT
VOUT
VCE
USP-4
SOT-25
Power Dissipation
SOT-89
Pd
SOT-89-5
Operating Ambient Temperature
Storage Temperature
Topr
Tstg
RATINGS
VSS - 0.3 ~ VSS + 6.5
850 (*1)
VSS - 0.3 ~ VIN + 0.3≦VSS + 6.5
VSS-0.3 ~ VSS+ 6.5
120 (IC only)
1000(40mm x 40mm Standard) (*2)
250 (IC only)
600(40mm x 40mm Standard) (*2)
500 (IC only)
1000(40mm x 40mm Standard) (*2)
500 (IC only)
1300(40mm x 40mm Standard) (*2)
1750(JESD51-7 board) (*2)
-40 ~ 85
-55 ~ 125
(*1)
Pd>(VIN-VOUT)×IOUT
(*2)
The power dissipation figure shown is PCB mounted and is for reference only
Ta=25℃
UNITS
V
mA
V
V
mW
℃
℃
Please refer to PACKAGING INFORMATION for the mounting condition.
5/22
XC6503 Series
■ELECTRICAL CHARACTERISTICS
●XC6503 A/B/C/D Type
Ta=25℃
PARAMETER
Output Voltage
Maximum Output
Current
SYMBOL
VOUT(E) (*2)
CONDITIONS
2.0V>VOUT(T)
(*3)
MIN.
, VCE=VIN, IOUT=10mA
2.0V≦VOUT(T), VCE=VIN, IOUT=10mA
IOUTMAX
VCE=VIN
-0.02
TYP.
(*4)
×0.99 (*4)
VOUT(T)
500
-
VCE=VIN, 0.1mA≦IOUT≦300mA
-
20
VCE=VIN , IOUT=300mA
-
MAX.
UNITS
CIRCUITS
V
①
-
mA
①
50
mV
①
mV
①
+0.02
(*4)
×1.01 (*4)
Load Regulation
ΔVOUT
Dropout Voltage (*5)
Vdif
Supply Current
ISS
VIN=VCE=6.0V, IOUT=0mA
-
15
30
μA
②
Stand-by Current
ISTB
VIN=6.0V, VCE=VSS
-
0.01
0.1
μA
②
%/V
①
Line Regulation
Input Voltage
Output Voltage
Temperature
Characteristics
ΔVOUT/
(ΔVIN・VOUT)
VOUT(T)+0.5V≦VIN≦6.0V,
VIN
ΔVOUT/
VCE=VIN, IOUT=30mA
-40℃≦Topr≦85℃
E-2(*9)
-
VCE=VIN, IOUT=30mA
(ΔTopr・VOUT)
E-1(*8)
1.7
-
6.0
V
①
-
±30
-
ppm/℃
①
-
55
-
dB
③
510
630
750
mA
①
-
120
210
mA
①
VOUT(T)≦4.75V
VIN={VOUT(T)+1.0}VDC+0.5Vp-pAC
Power Supply
Rejection Ratio
PSRR
VCE=VIN, IOUT=30mA, f=1kHz
VOUT(T)≧4.80V
VIN=5.75VDC+0.5Vp-pAC
VCE=VIN, IOUT=30mA, f=1kHz
Current Limit
ILIM
VCE=VIN
VCE=VIN
Short-circuit Current
ISHORT
CE High Level Voltage
VCEH
1.0
-
6.0
V
①
CE Low Level Voltage
VCEL
VSS
-
0.3
V
①
A/B type
-0.1
-
0.1
C/D type
3.5
6
10
μA
①
Short VOUT to VSS level
CE High Level
Current
ICEH
VIN=VCE=6.0V
CE Low Level Current
ICEL
VCE=VSS
-0.1
-
0.1
μA
①
VIN=6.0V, VOUT=5.0V, VCE=VSS
300
430
500
Ω
①
CL Discharge
Resistance(*10)
Thermal Shutdown
Detect Temperature
Thermal Shutdown
Release
Temperature
Thermal Shutdown
Hysteresis Width
RDCHG
TTSD
Junction Temperature
-
150
-
℃
-
TTSR
Junction Temperature
-
125
-
℃
-
THYS
TTSD-TTSR
-
25
-
℃
-
NOTE:
(*1)
Unless otherwise stated regarding input voltage conditions, VIN=VOUT(T)(*3)+1.0V.
(*2)
VOUT(E): Effective output voltage
(i.e. the output voltage when “VOUT(T)+1.0V” is provided at the VIN pin while maintaining a certain IOUT value.)
(*3)
VOUT(T): Nominal output voltage
(*4)
Characteristics of the actual VOUT(E) by setting output voltage is shown in the voltage chart.
(*5)
Vdif=VIN1(*7)-VOUT1(*6)
(*6)
VOUT1 is a voltage equal to 98% of the output voltage whenever an amply stabilized IOUT {VOUT(T)+1.0V} is input
(*7)
VIN1 is an input voltage when VOUT1 appears at the VOUT pin while the input voltage is gradually decreased.
(*8)
E-1:DROPOUT VOLTAGE (Refer to Voltage Chart.)
(*9)
E-2:LINE REGULATION (Refer to Voltage Chart.)
(*10)
This function is built in the XC6503B/D series only.
The XC6503A/C series discharges by only R1+ R2 resistors as shown in the block diagrams.
6/22
XC6503
Series
■ELECTRICAL CHARACTERISTICS (Continued)
●XC6503P Type
Ta=25℃
PARAMETER
SYMBOL
Output Voltage
VOUT(E) (*2)
Maximum Output
Current
Load Regulation
ΔVOUT
Vdif
Line Regulation
Input Voltage
Output Voltage
Temperature
Characteristics
2.0V>VOUT(T)(*3), IOUT=10mA
2.0V≦VOUT(T), IOUT=10mA
IOUTMAX
Dropout Voltage (*5)
Supply Current
CONDITIONS
ISS
ΔVOUT/
(ΔVIN・VOUT)
ΔVOUT/
-0.02 (*4)
×0.99
(*4)
TYP.
VOUT(T)
500
-
0.1mA≦IOUT≦300mA
-
20
IOUT=300mA
-
VIN= 6.0V, IOUT=0mA
-
VOUT(T)+0.5V≦VIN≦6.0V, IOUT=30mA
-
VIN
(ΔTopr・VOUT)
MIN.
IOUT=30mA
-40℃≦Topr≦85℃
MAX.
UNITS
CIRCUITS
V
①
-
mA
①
50
mV
①
mV
①
μA
②
%/V
①
+0.02 (*4)
×1.01 (*4)
E-1(*8)
15
30
E-2(*9)
1.7
-
6.0
V
①
-
±30
-
ppm/℃
①
-
55
-
dB
③
VOUT(T)≦4.75V
VIN={VOUT(T)+1.0}VDC+0.5Vp-pAC
Power Supply
Rejection Ratio
PSRR
IOUT=30mA, f=1kHz
VOUT(T)≧4.80V
VIN=5.75VDC+0.5Vp-pAC
IOUT=30mA, f=1kHz
Current Limit
ILIM
510
630
750
mA
①
Short-circuit Current
ISHORT
Short VOUT to VSS level
-
120
210
mA
①
TTSD
Junction Temperature
-
150
-
℃
-
TTSR
Junction Temperature
-
125
-
℃
-
THYS
TTSD-TTSR
-
25
-
℃
-
Thermal Shutdown
Detect Temperature
Thermal Shutdown
Release
Temperature
Thermal Shutdown
Hysteresis Width
NOTE:
(*1)
Unless otherwise stated regarding input voltage conditions, VIN=VOUT(T)(*3)+1.0V.
(*2)
VOUT(E): Effective output voltage
(i.e. the output voltage when “VOUT(T)+1.0V” is provided at the VIN pin while maintaining a certain IOUT value.)
(*3)
VOUT(T): Nominal output voltage
(*4)
Characteristics of the actual VOUT(E) by setting output voltage is shown in the voltage chart.
(*5)
Vdif=VIN1(*7)-VOUT1(*6)
(*6)
VOUT1 is a voltage equal to 98% of the output voltage whenever an amply stabilized IOUT {VOUT(T)+1.0V} is input
(*7)
VIN1 is an input voltage when VOUT1 appears at the VOUT pin while the input voltage is gradually decreased.
(*8)
E-1:DROPOUT VOLTAGE (Refer to Voltage Chart.)
(*9)
E-2:LINE REGULATION (Refer to Voltage Chart.)
7/22
XC6503 Series
■ELECTRICAL CHARACTERISTICS (Continued)
●Voltage Chart
Ta=25℃
E-0
E-1
E-2
E-0
E-1
E-2
NOMINAL
OUTPUT
DROPOUT
LINE
NOMINAL
OUTPUT
DROPOUT
LINE
VOLTAGE
VOLTAGE
VOLTAGE
REGULATION
VOLTAGE
VOLTAGE
VOLTAGE
REGULATION
(V)
(V)
(mV)
(%/V)
(V)
(V)
(mV)
VOUT(T)
VOUT(E)
ΔVOUT/
Vdif
(ΔVIN・VOUT)
VOUT(T)
VOUT(E)
(%/V)
ΔVOUT/
Vdif
(ΔVIN・VOUT)
MIN.
MAX.
TYP.
MAX.
TYP.
MAX.
MIN.
MAX.
TYP.
MAX.
TYP.
MAX.
1.200
1.1800
1.2200
555
660
0.1
0.25
3.150
3.1185
3.1815
190
250
0.1
0.2
1.250
1.2300
1.2700
↑
↑
↑
↑
3.200
3.1680
3.2320
170
230
↑
↑
1.300
1.2800
1.3200
↑
↑
↑
0.2
3.250
3.2175
3.2825
↑
↑
↑
↑
1.350
1.3300
1.3700
↑
↑
↑
↑
3.300
3.2670
3.3330
↑
↑
↑
↑
1.400
1.3800
1.4200
440
560
↑
↑
3.350
3.3165
3.3835
↑
↑
↑
↑
1.450
1.4300
1.4700
↑
↑
↑
↑
3.400
3.3660
3.4340
↑
↑
↑
↑
1.500
1.4800
1.5200
↑
↑
↑
↑
3.450
3.4155
3.4845
↑
↑
↑
↑
1.550
1.5300
1.5700
↑
↑
↑
↑
3.500
3.4650
3.5350
↑
↑
↑
↑
1.600
1.5800
1.6200
360
450
↑
↑
3.550
3.5145
3.5855
↑
↑
↑
↑
1.650
1.6300
1.6700
↑
↑
↑
↑
3.600
3.5640
3.6360
155
210
↑
↑
1.700
1.6800
1.7200
↑
↑
↑
↑
3.650
3.6135
3.6865
↑
↑
↑
↑
1.750
1.7300
1.7700
↑
↑
↑
↑
3.700
3.6630
3.7370
↑
↑
↑
↑
1.800
1.7800
1.8200
300
390
↑
↑
3.750
3.7125
3.7875
↑
↑
↑
↑
1.850
1.8300
1.8700
↑
↑
↑
↑
3.800
3.7620
3.8380
↑
↑
↑
↑
1.900
1.8800
1.9200
↑
↑
↑
↑
3.850
3.8115
3.8885
↑
↑
↑
↑
1.950
1.9300
1.9700
↑
↑
↑
↑
3.900
3.8610
3.9390
↑
↑
↑
↑
2.000
1.9800
2.0200
265
330
↑
↑
3.950
3.9105
3.9895
↑
↑
↑
↑
2.050
2.0295
2.0705
↑
↑
↑
↑
4.000
3.9600
4.0400
↑
↑
↑
↑
2.100
2.0790
2.1210
↑
↑
↑
↑
4.050
4.0095
4.0905
↑
↑
↑
↑
2.150
2.1285
2.1715
↑
↑
↑
↑
4.100
4.0590
4.1410
↑
↑
↑
↑
2.200
2.1780
2.2220
240
310
↑
↑
4.150
4.1085
4.1915
↑
↑
↑
↑
2.250
2.2275
2.2725
↑
↑
↑
↑
4.200
4.1580
4.2420
140
195
↑
↑
2.300
2.2770
2.3230
↑
↑
↑
↑
4.250
4.2075
4.2925
↑
↑
↑
↑
2.350
2.3265
2.3735
↑
↑
↑
↑
4.300
4.2570
4.3430
↑
↑
↑
↑
2.400
2.3760
2.4240
↑
↑
↑
↑
4.350
4.3065
4.3935
↑
↑
↑
↑
2.450
2.4255
2.4745
↑
↑
↑
↑
4.400
4.3560
4.4440
↑
↑
↑
↑
2.500
2.4750
2.5250
210
270
↑
↑
4.450
4.4055
4.4945
↑
↑
↑
↑
2.550
2.5245
2.5755
↑
↑
↑
↑
4.500
4.4550
4.5450
↑
↑
↑
↑
2.600
2.5740
2.6260
↑
↑
↑
↑
4.550
4.5045
4.5955
↑
↑
↑
↑
2.650
2.6235
2.6765
↑
↑
↑
↑
4.600
4.5540
4.6460
↑
↑
↑
↑
2.700
2.6730
2.7270
↑
↑
↑
↑
4.650
4.6035
4.6965
↑
↑
↑
↑
2.750
2.7225
2.7775
↑
↑
↑
↑
4.700
4.6530
4.7470
↑
↑
↑
↑
2.800
2.7720
2.8280
190
250
↑
↑
4.750
4.7025
4.7975
↑
↑
↑
↑
2.850
2.8215
2.8785
↑
↑
↑
↑
4.800
4.7520
4.8480
↑
↑
↑
↑
2.900
2.8710
2.9290
↑
↑
↑
↑
4.850
4.8015
4.8985
↑
↑
↑
↑
2.950
2.9205
2.9795
↑
↑
↑
↑
4.900
4.8510
4.9490
↑
↑
↑
↑
3.000
2.9700
3.0300
↑
↑
↑
↑
4.950
4.9005
4.9995
↑
↑
↑
↑
3.050
3.0195
3.0805
↑
↑
↑
↑
5.000
4.9500
5.0500
↑
↑
↑
↑
3.100
3.0690
3.1310
↑
↑
↑
↑
8/22
XC6503
Series
■TEST CIRCUITS
●Circuit ①
●測定回路①
CIN=0.1μF
(ceramic)
VIN
V
A
CE
V
●Circuit ②
IOUT
A
VOUT
V
VSS
●測定回路②
A
VIN
V
CE
VOUT
VSS
●Circuit ③
●測定回路③
VIN
V
CE
IOUT
A
VOUT
VSS
V
* For the XC6503P series, CE pin is connected to the VIN internally.
9/22
XC6503 Series
■ OPERATIONAL EXPLANATION
The voltage divided by resistors R1 and R2 is compared with the internal reference voltage by the error amplifier. The P-channel
MOSFET which is connected to the VOUT pin is then driven by the subsequent output signal. The output voltage at the VOUT pin is
controlled and stabilized by a system of negative feedback. The current limit circuit and short circuit protection operate in relation
to the level of output current and heat dissipation. Current limit circuit and short protection circuit operate with output current and
thermal shutdown circuit will operate with heating. Further, the IC’s internal circuitry can be shutdown via the CE pin signal.
VOUT
VIN
CFB
Current Limit
& TSD
+
Error
Amp
-
CE
ON/OFF
Control
Voltage
Reference
R1
RDCHG
R2
/CE
each
circuit
XC6503 Series D Type
VSS
XC6503D Series
XC6503 B/D can quickly discharge the electric charge at the output capacitor (CL), when a low signal to the CE pin, which enables
a whole IC circuit put into OFF state, is inputted via the N-channel transistor located between the VOUT pin and the VSS pin (cf.
BLOCK DIAGRAM). The CL discharge resistance is set to 430Ω when VIN is 6.0V (TYP.) and VOUT is 5.0V (TYP.). Moreover,
discharge time of the output capacitor (CL) is set by the CL auto-discharge resistance (RDCHG) and the output capacitor (CL). By
setting time constant of a CL auto-discharge resistance value (RDCHG) and an output capacitor value (CL) as τ(τ=C x R), the
output voltage after discharge via the N-channel transistor is calculated by the following formula.
V = VOUT x e –t/τ, or t=τln (VOUT(E) / V)
( V : Output voltage after discharge, VOUT(E) : Initial Output voltage, t: Discharge time,
τ: CL auto-discharge resistance RDCHG×CL Output capacitance
The protection circuit operates as a combination of an output current limiter and fold-back short circuit protection. When load
current reaches the current limit level, the output voltage drops. As a result, the load current starts to reduce with showing foldback curve. The output current finally falls at the level of 120mA when the VOUT pin is short-circuited.
When the junction temperature of the built-in driver transistor reaches the temperature limit, the thermal shutdown circuit operates
and the driver transistor will be set to OFF. The IC resumes its operation when the thermal shutdown function is released and the
IC’s operation is automatically restored because the junction temperature drops to the level of the thermal shutdown release
voltage.
The IC's internal circuitry can be shutdown via the signal from the CE pin with the XC6503 A/B/C/D series. In shutdown mode,
output at the VOUT pin will be pulled down to the VSS level via R1, R2 and CL auto-discharge resistance RDCHG. Please note the
XC6503P does not have the CE pin.
The XC6503 C/D has a pulled down resistor at the CE pin in order to avoid an unstable operation with the CE pin open (the CE
pin is left open, operation will be stopped). However, the CE pin input current will increase slightly through the pulled down resistor
when operating. If the correct output voltage is applied to the CE pin, the logic is fixed and the IC will operate normally. However,
if the medium voltage is input, supply current may increase as a result of an internal through current.
10/22
XC6503
Series
■ NOTES ON USE
1. For temporary, transitional voltage drop or voltage rising phenomenon, the IC is liable to malfunction should the ratings be
exceeded.
2.
The XC6503 series operates even if without attaching an output capacitor. However, when wiring impedance is high,
operations may become unstable due to noise and/or phase lag depending on output current. Please wire the input capacitor
(CIN) and the output capacitor (CL) as close to the IC as possible.
3.
The XC6503 installs fold-back current limit circuits. When start-up, this fold-back load curve affects its start-up characteristics.
The XC6503 having output current under 2.4V and Load Resistance (RLOAD) ≧ 4.8Ω may not happen to start-up with the
load conditions below. In these cases, sequence control should be taken for connecting a load after the start-up execution.
Start-up Condition : Load Resistance RLOAD ≧ 4.8Ω
CIN=CL =0.1μF(ceramic),VIN=VOUT+1V
3.2
XC6503x281
OutputVoltage : VOUT (V)
2.8
2.4
Start-up defect area which
it may happen.
2.0
●CONDITION
Output Voltage
Load Resistance
Output Current
1.2V
≧4.8Ω
≦250mA
1.5V
≧4.8Ω
≦312mA
1.8V
≧4.8Ω
≦375mA
1.6
XC6503x121
1.2
0.8
0.4
0.0
0
100
200
300
400
500
600
700
OutputCurrent : I OUT (mA)
4.
Torex places an importance on improving our products and its reliability.
However, by any possibility, we would request user fail-safe design and post-aging treatment on system or equipment.
11/22
XC6503 Series
■TYPICAL PERFORMANCE CHARACTERISTICS
(1) OutputVoltage v.s. OutputCurrent
XC6503x121xx
XC6503x121xx
1.6
1.2
Ta=-40℃
Ta=25℃
Ta=85℃
1.0
0.8
0.6
0.4
0.2
3.6
VIN=1.7V
1.4
OutputVoltage : VOUT (V)
3.2
VIN=2.2V
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.0
0
100
200
300
400
500
600
700
100
200
300
400
500
OutputCurrent : IOUT (mA)
XC6503x281xx
XC6503x281xx
VIN=3.8V
OutputVoltage : VOUT (V)
2.4
Ta=-40℃
Ta=25℃
Ta=85℃
2.0
1.6
1.2
0.8
0.4
Ta=25℃
100
200
300
400
500
600
VIN=3.8V
2.8
2.4
2.0
1.6
1.2
0.8
700
1.2
0.8
0
1
0
1
0
100
6.0
0.0
0
1.6
700
0.4
0.0
2.0
VIN=3.3V
3.2
2.8
600
3.6
3.2
2.4
0.0
0
OutputCurrent : IOUT (mA)
3.6
2.8
0.4
OutputVoltage : VOUT (V)
OutputVoltage : VOUT (V)
1.4
OutputVoltage : VOUT (V)
Ta=25℃
1.6
OutputVoltage : VOUT (V)
VIN=2.2V
5.0
4.0
3.0
2.0
1.0
0.0
0
100
200
OutputCurrent : IOUT (mA)
300
400
500
600
700
OutputCurrent : IOUT (mA)
(2) OutputVoltage v.s. InputVoltage
XC6503x121xx
XC6503x121xx
IOUT=30mA
1.6
900
800
1.2
1.0
0.8
0.6
0.4
Ta=85℃
Ta=25℃
0.2
1.22
1.20
1.18
1.16
1.14
Ta=85℃
Ta=25℃
1.12
Ta=-40℃
DropoutVoltage : Vdif (mV)
1.24
OutputVoltage : VOUT (V)
OutputVoltage : VOUT (V)
1.4
0
1
2
3
4
InputVoltage : VIN (V)
5
6
700
600
500
400
300
200
100
Ta=-40℃
1.10
0.0
12/22
IOUT=30mA
1.26
0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
InputVoltage : VIN (V)
5.0
5.5
6.0
XC6503
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(2) OutputVoltage v.s. InputVoltage
XC6503x281xx
XC6503x281xx
IOUT=30mA
3.6
3.2
900
800
2.8
2.4
2.0
1.6
1.2
0.8
Ta=85℃
0.4
Ta=-40℃
Ta=25℃
2.82
2.80
2.78
2.76
2.74
Ta=85℃
Ta=25℃
2.72
0.0
DropoutVoltage : Vdif (mV)
2.84
OutputVoltage : VOUT (V)
OutputVoltage : VOUT (V)
IOUT=30mA
2.86
1
2
3
4
5
6
600
500
400
300
200
100
Ta=-40℃
2.70
0
700
0
3.0
3.5
4.0
4.5
5.0
InputVoltage : VIN (V)
InputVoltage : VIN (V)
XC6503x501xx
XC6503x501xx
5.5
6.0
0
100
(4) SupplyCurrent v.s
IOUT=30mA
IOUT=30mA
5.06
40
36
4.0
3.0
2.0
Ta=85℃
Ta=25℃
1.0
5.02
5.00
4.98
4.96
4.94
Ta=85℃
Ta=25℃
4.92
Ta=-40℃
0.0
SupplyCurrent : ISS (μA)
5.04
5.0
OutputVoltage : VOUT (V)
OutputVoltage : VOUT (V)
6.0
1
2
3
4
5
6
28
24
20
16
12
8
4
Ta=-40℃
4.90
0
32
0
5.2
5.4
InputVoltage : VIN (V)
5.6
5.8
6.0
0
1
0
1
InputVoltage : VIN (V)
(3) DropoutVoltage v.s. OutputCurrent
XC6503x121xx
XC6503x281xx
900
DropoutVoltage : Vdif (mV)
800
Ta=25℃
700
Ta=-40℃
600
* Below is the forbidden
area due to the minimum
operating voltage.
500
400
300
200
DropoutVoltage : Vdif (mV)
Ta=85℃
800
700
Ta=-40℃
500
400
300
200
100
0
0
100
200
300
OutputCurrent : IOUT (mA)
400
500
36
Ta=25℃
600
100
0
40
Ta=85℃
SupplyCurrent : ISS (μA)
900
32
28
24
20
16
12
8
4
0
0
100
200
300
400
500
OutputCurrent : IOUT (mA)
13/22
XC6503 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(3) DropoutVoltage v.s. OutputCurrent
XC6503x501xx
1.26
900
Ta=85℃
Ta=25℃
700
1.24
OutputVoltage : VOUT (V)
DropoutVoltage : Vdif (mV)
800
Ta=-40℃
600
500
400
300
200
1.22
1.20
1.18
1.16
100
0
0
100
200
300
400
1.14
-50
500
-25
OutputCurrent : IOUT (mA)
(4) SupplyCurrent v.s. InputVoltage
XC6503x281xx
40
5.20
36
36
5.15
32
32
28
24
20
16
12
8
Ta=85℃
Ta=25℃
4
28
24
20
16
12
Ta=85℃
8
Ta=25℃
4
Ta=-40℃
0
OutputVoltage : VOUT (V)
40
SupplyCurrent : ISS (μA)
SupplyCurrent : ISS (μA)
XC6503x121xx
5.10
5.05
5.00
4.95
4.90
4.85
Ta=-40℃
0
0
1
2
3
4
5
6
InputVoltage : VIN (V)
0
1
2
3
4
5
4.80
-50
6
InputVoltage : VIN (V)
40
4
36
3
32
InputVoltage : VIN (V)
SupplyCurrent : ISS (μA)
XC6503x501xx
28
24
20
16
12
Ta=85℃
8
1
0
-1
-2
Ta=25℃
4
-3
Ta=-40℃
0
-4
0
1
2
3
4
InputVoltage : VIN (V)
14/22
2
5
6
-25
XC6503
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(5) OutputVoltage v.s. AmbientTemperature
XC6503x121xx
XC6503x281xx
VIN=2.2V
VIN=3.8V
2.95
IOUT=10mA
IOUT=30mA
IOUT=300mA
1.22
1.20
1.18
1.16
1.14
-50
-25
0
25
50
75
6
IOUT=30mA
2.90
OutputVoltage : VOUT (V)
OutputVoltage : VOUT (V)
1.24
8
IOUT=10mA
IOUT=300mA
InputVoltage : VIN (V)
1.26
2.85
2.80
2.75
2.70
2.65
-50
100
AmbientTemperature : Ta (℃)
4
2
0
-2
-4
-6
-8
-25
0
25
50
75
100
AmbientTemperature : Ta (℃)
XC6503x501xx
VIN=6.0V
5.20
IOUT=10mA
5.15
IOUT=300mA
5.10
5.05
5.00
4.95
400
200
0
-200
4.90
-400
4.85
4.80
-50
tr=
600
IOUT=30mA
Rush Current : IRUSH (mA)
OutputVoltage : VOUT (V)
800
-600
-800
-25
0
25
50
75
100
AmbientTemperature : Ta (℃)
(6) Rising Respose Time
XC6503x121xx
1
0
2.0
OutputVoltage
1.6
-1
1.2
-2
0.8
-3
0.4
-4
0.0
Time : 40μs/div
4.2
4
InputVoltage
2.8
2.4
VIN=0V→3.8V
tr=5μs, Without CL, IOUT=30mA, Ta=25℃
4
3
3.5
OutputVoltage
2
2.8
0
2.1
-2
1.4
-4
0.7
-6
0.0
CE Voltage : VCE (V)
2
6
OutputVoltage : VOUT (V)
InputVoltage
3.2
InputVoltage : VIN (V)
InputVoltage : VIN (V)
3
XC6503x281xx
OutputVoltage : VOUT (V)
4
VIN=0V→2.2V
tr=5μs, Without CL, IOUT=30mA, Ta=25℃
2
1
0
-1
-2
-3
-4
Time : 40μs/div
15/22
VC
XC6503 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(6) Rising Respose Time
XC6503x501xx
VIN=0V→6.0V
tr=5μs, Without CL, IOUT=30mA, Ta=25℃
8
8.0
8
7.0
6
VC
4
OutputVoltage
6.0
CE Voltage : VCE (V)
InputVoltage : VIN (V)
6
OutputVoltage : VOUT (V)
InputVoltage
4
2
5.0
0
4.0
-2
3.0
-4
2.0
-6
1.0
-6
-8
0.0
-8
2
0
-2
-4
Time : 40μs/div
(7) Rush Current
XC6503x281xx
600
7
600
400
6
200
5
RushCurrent
0
4
InputVoltage
-200
3
OutputVoltage
-400
-600
-800
2
VIN=0V→3.8V
tr=5μs, CL=22μF(ceramic), IOUT=30mA, Ta=25℃
RushCurrent
8
7
400
6
200
5
0
4
InputVoltage
-200
3
OutputVoltage
-400
1
-600
0
-800
Time : 40μs/div
2
4
tr=5μ
3
InputVoltage : VIN (V)
800
Rush Current : IRUSH (mA)
8
Voltage : VIN (V), VOUT (V)
Rush Current : IRUSH (mA)
800
VIN=0V→3.8V
tr=5μs, CL=0.1μF(ceramic), IOUT=30mA, Ta=25℃
Voltage : VIN (V), VOUT (V)
XC6503x281xx
2
1
0
-1
1
0
-2
Time : 40μs/div
(8) CE Rising Respose Time
XC6503x121xx
1
2.0
OutputVoltage
1.6
-1
1.2
-2
0.8
-3
0.4
-4
0.0
Time : 40μs/div
16/22
6
4
OutputVoltage
3.5
4
InputVoltage : VIN (V)
2.4
4.2
CE Voltage
2.8
2
0
6
VIN=3.8V, Ta=25℃
VCE=0V→3.8V, tr=5μs, Without CL, IOUT=30mA
OutputVoltage : VOUT (V)
CE Voltage
3.2
CE Voltage : VCE (V)
CE Voltage : VCE (V)
3
XC6503x281xx
OutputVoltage : VOUT (V)
4
VIN=2.2V, Ta=25℃
VCE=0V→2.2V, tr=5μs, Without CL, IOUT=30mA
2
2.8
0
2.1
-2
1.4
-4
0.7
-4
-6
0.0
-6
Time : 40μs/div
2
0
-2
tr=5μ
XC6503
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(8) CE Rising Respose Time
XC6503x501xx
8
VIN=6V, Ta=25℃
VCE=0V→6.0V, tr=5μs, Without CL, IOUT=30mA
8.0
tr=5
8
7.0
4
6.0
InputVoltage : VIN (V)
OutputVoltage
2
7
OutputVoltage : VOUT (V)
CE Voltage : VCE (V)
CE Voltage
6
5.0
0
4.0
-2
3.0
-4
2.0
-6
1.0
-8
0.0
6
5
4
3
2
Time : 40μs/div
(9) Line transient response
XC6503x121xx
XC6503x121xx
2.4
4
3
2.1
2
1.8
2.4
300
3
2.1
250
2
1.8
-1
0.9
0.6
-2
0.6
0
4.0
300
3.7
250
XC6503x281xx
XC6503x281xx
2
4.0
6
3.7
4
3.4
0
3.1
OutputVoltage
-2
2.8
-4
-6
Time : 100μs/div
100
0.9
Time : 100μs/div
InputVoltage
150
1.2
InputVoltage : VIN (V)
4
200
0
Time : 100μs/div
VIN=3.8V⇔4.8V
tr=5μs, CL=0.1μF(ceramic), IOUT=30mA, Ta=25℃
OutputCurrent : IOUT (mA)
-2
1.5
OutputVoltage
VIN=3.8V⇔4.8V
tr=5μs, Without CL, IOUT=30mA, Ta=25℃
InputVoltage
2
3.4
0
3.1
OutputVoltage
-2
2.8
2.5
-4
2.5
2.2
-6
2.2
OutputCurrent : IOUT (mA)
-1
1
OutputVoltage : VOUT (V)
1.2
InputVoltage : VIN (V)
OutputVoltage : VOUT (V)
0
6
InputVoltage : VIN (V)
1.5
OutputVoltage
VIN
InputVoltage
OutputVoltage : VOUT (V)
InputVoltage : VIN (V)
InputVoltage
1
VIN=2.2V⇔3.2V
tr=5μs, Without CL, IOUT=30mA, Ta=25℃
OutputVoltage : VOUT (V)
4
VIN=2.2V⇔3.2V
tr=5μs, CL=0.1μF(ceramic), IOUT=30mA, Ta=25℃
50
200
150
100
50
0
Time : 100μs/div
17/22
VIN
XC6503 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(9) Line transient response
7
6
5.6
5
5.3
4
5.0
OutputVoltage
3
4.7
2
4.4
VIN=5.5V⇔6.0V
tr=5μs, Without CL, IOUT=30mA, Ta=25℃
6.2
300
5.9
250
InputVoltage
6
5.6
5
5.3
4
5.0
OutputVoltage
OutputCurrent : IOUT (mA)
5.9
InputVoltage
InputVoltage : VIN (V)
InputVoltage : VIN (V)
7
6.2
8
OutputVoltage : VOUT (V)
8
XC6503x501xx
OutputVoltage : VOUT (V)
XC6503x501xx
VIN=5.5V⇔6.0V
tr=5μs, CL=0.1uF(ceramic), IOUT=30mA, Ta=25℃
200
150
100
3
4.7
2
4.4
0
1.8
80
Time : 100μs/div
VIN
50
Time : 100μs/div
(10) Load transient response
OutputVoltage
1.2
150
0.9
0.6
OutputCurrent
50
0.3
0
0.0
250
100
0.6
50
0.3
0
0.0
50
40
30
20
10
0
2.2
OutputCurrent
50
1.9
0
1.6
CL=0.1μF(ceramic)
without CL
3.4
10
100
3.1
OutputVoltage
200
2.8
150
2.5
OutputCurrent
100
2.2
50
1.9
0
1.6
Time : 40μs/div
10
100
80
Ripple Rejection Ratio : PSRR (dB)
2.5
VIN=3.8V, tr=tf=5μs, IOUT=10⇔150mA, Ta=25℃
OutputVoltage : VOUT (V)
150
250
OutputCurrent : IOUT (mA)
3.1
2.8
18/22
300
3.4
OutputVoltage
Time : 100μs/div
60
XC6503x281xx
200
100
0.9
OutputCurrent
70
Time : 40μs/div
OutputVoltage : VOUT (V)
OutputCurrent : IOUT (mA)
250
CL=0.1μF(ceramic)
without CL
1.2
150
XC6503x281xx
300
1.5
OutputVoltage
200
Time : 100μs/div
VIN=3.8V, tr=tf=5μs, IOUT=0.1⇔50mA, Ta=25℃
CL=0.1μF(ceramic)
without CL
Ripple Rejection Ratio : PSRR (dB)
1.5
200
100
300
1.8
OutputCurrent : IOUT (mA)
OutputCurrent : IOUT (mA)
250
CL=0.1μF(ceramic)
without CL
OutputVoltage : VOUT (V)
300
XC6503x121xx
VIN=2.2V, tr=tf=5μs, IOUT=10⇔150mA, Ta=25℃
OutputVoltage : VOUT (V)
XC6503x121xx
VIN=2.2V, tr=tf=5μs, IOUT=0.1⇔50mA, Ta=25℃
70
60
50
40
30
20
10
0
XC6503
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(10) Load transient response
5.3
OutputVoltage
200
5.0
150
4.7
100
4.4
OutputCurrent
50
4.1
0
3.8
250
OutputCurrent : IOUT (mA)
250
300
5.6
CL=0.1μF(ceramic)
without CL
OutputVoltage : VOUT (V)
300
OutputCurrent : IOUT (mA)
XC6503x501xx
VIN=6.0V, tr=tf=5μs, IOUT=10⇔150mA, Ta=25℃
5.6
CL=0.1μF(ceramic)
without CL
5.3
OutputVoltage
200
5.0
150
4.7
OutputCurrent
100
4.4
50
4.1
0
3.8
Time : 100μs/div
OutputVoltage : VOUT (V)
XC6503x501xx
VIN=6.0V, tr=tf=5μs, IOUT=0.1⇔50mA, Ta=25℃
Time : 40μs/div
(11) Ripple Rejection Ratio
XC6503x121xx
VIN=2.2V+0.5VP-PAC, IOUT=30mA, Ta=25℃
80
CL=0.1μF(ceramic)
Without CL
70
60
50
40
30
20
10
0
VIN=3.8V+0.5VP-PAC, IOUT=30mA, Ta=25℃
80
Ripple Rejection Ratio : PSRR (dB)
Ripple Rejection Ratio : PSRR (dB)
XC6503x281xx
CL=0.1μF(ceramic)
Without CL
70
60
50
40
30
20
10
0
10
100
1k
10k
Ripple Frequency : f (Hz)
100k
10
100
1k
10k
Ripple Frequency : f (Hz)
100k
XC6503x501xx
VIN=5.75V+0.5VP-PAC, IOUT=30mA, Ta=25℃
Ripple Rejection Ratio : PSRR (dB)
80
CL=0.1μF(ceramic)
Without CL
70
60
50
40
30
20
10
0
10
100
1k
10k
Ripple Frequency : f (Hz)
100k
19/22
XC6503 Series
■PACKAGING INFORMATION
For the latest package information go to, www.torexsemi.com/technical-support/packages
PACKAGE
OUTLINE / LAND PATTERN
THERMAL CHARACTERISTICS
SOT-25
SOT-25 PKG
SOT-25 Power Dissipation
SOT-89
SOT-89 PKG
SOT-89 Power Dissipation
SOT-89-5
SOT-89-5 PKG
SOT-89-5 Power Dissipation
USP-4
USP-4 PKG
USP-4 Power Dissipation
20/22
XC6503
Series
■MARKING RULE
●SOT-25(Under dot), SOT-89, SOT-89-5, USP-4
① represents product series.
MARK
PRODUCT SERIES
1
XC6503******-G
② represents type of regulators.
MARK
OUTPUT VOLTAGE
OUTPUT VOLTAGE
0.1V INCREMENTS
0.05V INCREMENTS
VOLTAGE=
VOLTAGE=
VOLTAGE=
VOLTAGE=
1.2~4.1V
4.2~5.0V
1.25~4.15V
4.25~4.95V
PRODUCT SERIES
PACKAGE
XC6503A*****-G
SOT-25/SOT-89-5/USP-4
0
1
2
3
XC6503P*****-G
SOT-89
4
5
6
7
XC6503B*****-G
SOT-25/SOT-89-5/USP-4
8
9
A
B
XC6503C*****-G
SOT-25/SOT-89-5/USP-4
C
D
E
F
XC6503D*****-G
SOT-25/SOT-89-5/USP-4
③ represents output voltage.
MARK
OUTPUT VOLTAGE (V)
MARK
OUTPUT VOLTAGE (V)
0
1
1.20
1.30
4.20
4.30
1.25
1.35
4.25
4.35
F
H
2.70
2.80
-
2.75
2.85
-
2
1.40
4.40
1.45
4.45
K
2.90
-
2.95
-
3
1.50
4.50
1.55
4.55
L
3.00
-
3.05
-
4
1.60
4.60
1.65
4.65
M
3.10
-
3.15
-
5
1.70
4.70
1.75
4.75
N
3.20
-
3.25
-
6
1.80
4.80
1.85
4.85
P
3.30
-
3.35
-
7
1.90
4.90
1.95
4.95
R
3.40
-
3.45
-
8
2.00
5.00
2.05
-
S
3.50
-
3.55
-
9
2.10
-
2.15
-
T
3.60
-
3.65
-
A
2.20
-
2.25
-
U
3.70
-
3.75
-
B
2.30
-
2.35
-
V
3.80
-
3.85
-
C
2.40
-
2.45
-
X
3.90
-
3.95
-
D
2.50
-
2.55
-
Y
4.00
-
4.05
-
E
2.60
-
2.65
-
Z
4.10
-
4.15
-
④⑤ represents production lot number
01 to 09, 0A to 0Z, 11 to 9Z, A1 to A9, AA to AZ, B1 to ZZ repeated. (G, I, J, O, Q, W excluded)
* No character inversion used.
●SOT-25(Under dot)
●SOT-89-5
●USP-4
●SOT-89
Enlarge
21/22
XC6503 Series
1.
The product and product specifications contained herein are subject to change without notice to
improve performance characteristics. Consult us, or our representatives before use, to confirm that
the information in this datasheet is up to date.
2.
The information in this datasheet is intended to illustrate the operation and characteristics of our
products. We neither make warranties or representations with respect to the accuracy or
completeness of the information contained in this datasheet nor grant any license to any intellectual
property rights of ours or any third party concerning with the information in this datasheet.
3.
Applicable export control laws and regulations should be complied and the procedures required by
such laws and regulations should also be followed, when the product or any information contained in
this datasheet is exported.
4.
The product is neither intended nor warranted for use in equipment of systems which require
extremely high levels of quality and/or reliability and/or a malfunction or failure which may cause loss
of human life, bodily injury, serious property damage including but not limited to devices or equipment
used in 1) nuclear facilities, 2) aerospace industry, 3) medical facilities, 4) automobile industry and
other transportation industry and 5) safety devices and safety equipment to control combustions and
explosions. Do not use the product for the above use unless agreed by us in writing in advance.
5.
Although we make continuous efforts to improve the quality and reliability of our products;
nevertheless Semiconductors are likely to fail with a certain probability. So in order to prevent personal
injury and/or property damage resulting from such failure, customers are required to incorporate
adequate safety measures in their designs, such as system fail safes, redundancy and fire prevention
features.
6.
Our products are not designed to be Radiation-resistant.
7.
Please use the product listed in this datasheet within the specified ranges.
8.
We assume no responsibility for damage or loss due to abnormal use.
9.
All rights reserved. No part of this datasheet may be copied or reproduced unless agreed by Torex
Semiconductor Ltd in writing in advance.
TOREX SEMICONDUCTOR LTD.
22/22