XC6423
Series
ETR03068-002
Ultra Small 300mA Dual High Speed LDO Regulator with Inrush Current Prevention
■GENERAL DESCRIPTION
The XC6423 series is an ultra small CMOS dual LDO regulator, with 300mA output current capability. The series features high
accuracy of 1% output voltages, high ripple rejection and low dropout voltage.
The series is available in LGA-6A01 (1.2mm × 1.2mm × h0.4mm) which features ultra small and high heat dissipation. The
series is suited for high density board installation.
Each regulator can be turned off independently to be in stand-by mode by controlling EN pin. In this state, the electric
charge at the output capacitor (CL) is discharged via the internal auto-discharge switch, and as a result the VOUT voltage quickly
returns to the VSS level.
The output stabilization capacitor (CL) is also compatible with low ESR ceramic capacitors.
The high level of output stability is maintained even during frequent load fluctuations, due to the excellent transient response
performance.
Over current protection circuit and over heat protection circuit are integrated, these circuits start working when output current
reaches current limit or junction temperature reaches temperature limit.
The two regulators are completely isolated so that a cross talk during load fluctuations is minimized.
■APPLICATIONS
● Smart phones / Mobile phones
● Wireless LAN
● Mobile devices / terminals
● Modules ( wireless, cameras, etc. )
■FEATURES
Output Current
Input Voltage Range
Output Voltage Range
High Accuracy
:
:
:
:
Dropout Voltage
Low Power Consumption
Stand-by Current
Ripple Rejection
EN Pin Function
:
:
:
:
:
Protection Circuit
:
Low ESR Capacitor
Operating Ambient Temperature
Package
Environmentally Friendly
:
:
:
:
300mA
1.6V∼5.5V
1.2V∼3.6V 0.05V increments
±1% (VOUT≧2.00V)
±20mV (VOUT≦1.95V)
95mV@IOUT=150mA (VOUT=3.0V)
90μA / ch (TYP.)
Less than 0.1μA
75dB@1kHz
Active High
CL Auto Discharge
Current Limit 450mA (TYP.)
Short-circuit Current 125mA (TYP.)
Inrush Current Prevention
Thermal Shutdown
Ceramic Capacitor Compatible 1μF
-40℃∼+85℃
LGA-6A01
EU RoHS Compliant, Pb Free
■TYPICAL APPLICATION CIRCUITS ■TYPICAL PERFORMANCE
CHARACTERISTICS
XC6423(VOUT=2.5V)
CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
Dropout Voltage : Vdiff(mV)
500
85℃
400
25℃
-40℃
300
200
100
0
0
50
100
150
200
250
300
Output Current : I OUT(mA)
1/24
XC6423
Series
■BLOCK DIAGRAM
XC6423 Series, AB Type
* Diodes inside the circuits are ESD protection diodes and parasitic diodes.
2/24
XC6423
Series
■PRODUCT CLASSIFICATION
●Ordering Information
XC6423①②③④⑤⑥-⑦
DESIGNATOR
ITEM
SYMBOL
①②
Type
AB
Output Voltage
01∼
See the chart below
Package (Order Unit)
1R-G
LGA-6A01 (5,000/Reel)
③④
⑤⑥-⑦
(*1)
(*1)
DESCRIPTION
Includes EN Pull-down, CL Auto-discharge,
Thermal Shutdown and Inrush Current Prevention
The “-G” suffix denotes Halogen and Antimony free as well as being fully EU RoHS compliant.
Standard Voltage
③④
VR1 (V)
VR2 (V)
PRODUCT NUMBER
32
1.8
2.8
XC6423AB321R-G
Output Voltage Options
DESIGNATOR ③④
③④
VR1 (V)
VR2 (V)
③④
VR1 (V)
VR2 (V)
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
1.20
1.20
1.20
1.20
1.20
1.20
1.50
1.50
1.50
1.50
1.50
1.50
1.80
1.80
2.85
1.80
1.80
3.00
1.80
2.50
2.50
2.50
3.30
2.50
2.50
2.85
2.85
3.00
1.20
1.30
1.50
1.80
2.80
1.20
1.50
2.50
2.85
3.00
3.30
1.50
1.80
2.50
2.85
3.00
3.30
1.80
2.50
2.85
2.85
3.00
1.80
3.30
2.50
2.80
2.85
1.50
3.00
3.30
3.00
3.30
3.00
1.80
2.80
2.80
2.80
2.80
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
2.80
2.80
1.20
3.60
1.20
3.30
3.00
3.30
1.30
2.60
3.10
1.50
2.60
3.40
2.85
3.30
1.80
3.10
1.50
3.30
3.00
3.30
3.60
3.30
3.10
3.10
3.10
3.00
3.00
1.80
1.80
1.70
3.00
3.30
3.60
1.20
2.80
2.00
3.30
3.30
1.50
2.80
3.30
2.60
3.30
3.40
2.60
1.80
1.20
3.10
3.10
2.80
2.80
3.00
3.60
3.10
3.00
2.90
2.50
2.90
2.50
1.90
1.85
1.70
For other output voltage combinations, please contact your local Torex sales office or representative.
3/24
XC6423
Series
■PIN CONFIGURATION
■PIN ASSIGNMENT
PIN NUMBER
PIN NAME
FUNCTIONS
1
VOUT2
Output 2
2
VOUT1
Output 1
LGA-6A01
3
VSS
Ground
4
EN1
ON/OFF Control 1
5
VIN
Power Supply Input
6
EN2
ON/OFF Control 2
■FUNCTION CHART
XC6423 Series, AB Type
PIN NAME
SIGNAL
STATUS
L
Stand-by
H
Active
OPEN
Stand-by*
EN
H=High Level , L=Low Level
* When the EN pin is left open, an internal pull-down resister maintains the EN pin voltage to be low.
■ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATINGS
UNITS
Input Voltage
VIN
-0.3∼+7.0
V
Output Current
Output Voltage1
Output Voltage2
EN Input Voltage1
EN Input Voltage2
Power Dissipation
LGA-6A01
IOUT1+IOUT2
VOUT1, VOUT2
1100
mA
-0.3∼VIN+0.3 or +7.0
VEN1, VEN2
Pd
(*1)
(*2)
-0.3∼+7.0
650 (PCB mounted)
V
V
（*3）
mW
Operating Ambient Temperature
Topr
-40∼+85
℃
Storage Temperature
Tstg
-55∼+125
℃
All voltages are described based on the VSS.
(*1)
Please use within the range of Pd > {(VIN-VOUT1)×IOUT1 + (VIN-VOUT2)×IOUT2}
(*2)
The maximum rating corresponds to the lowest value between VIN+0.3 or +7.0.
(*3)
This is a reference data taken by using the test board.
4/24
XC6423
Series
■ELECTRICAL CHARACTERISTICS
●XC6423 Series
Ta=25℃
Regulator1, Regulator2 (*6)
PARAMETER
SYMBOL
CONDITIONS
VOUT≧2.0V, IOUT=10mA
Output Voltage
VOUT(E)
MIN.
VOUT(T)×0.99
TYP.
(*2)
VOUT(T)
“E-0”
(*1)
VOUT＜2.0V, IOUT=10mA
VOUT(T)ｰ 0.02
(*2)
Maximum Output Current
IOUTMAX
-
Load Regulation
ΔVOUT
Dropout Voltage
Vdif
(*4)
UNITS
CIRCUIT
V
①
mA
①
(*2)
VOUT(T)×1.01
(*3)
VOUT(T)
“E-0”
MAX.
(*2)
(*2)
(*2)
VOUT(T)+0.02
(*3)
300
-
0.1mA≦IOUT≦300mA
-
17
IOUT=300mA
-
37
“E-1”
(*5)
mV
①
mV
①
Supply Current
IDD
IOUT=0mA
-
90
190
μA
②
Stand-by Current
ISTB
VEN=VSS
-
0.01
0.10
μA
②
-
0.02
0.10
%/V
①
1.6
-
5.5
V
①
-
±100
-
ppm /℃
①
-
75
-
dB
③
310
450
-
mA
①
-
125
-
mA
①
VOUT(T)≦2.0V, IOUT =30mA
Line Regulation
ΔVOUT/
(ΔVIN・VOUT)
2.5V≦VIN≦5.5V
VOUT(T)≧2.05V, IOUT =30mA
VOUT(T)+0.5V≦VIN≦5.5V
Input Voltage
Output Voltage
Temperature Characteristics
(R&D Value)
Power Supply
Rejection Ratio
VIN
ΔVOUT/
(ΔTopr・VOUT)
IOUT=10mA,
-40℃≦Topr≦85℃
VIN={VOUT(T)+1.0}+0.5Vp-pAC
PSRR
VEN=VOUT(T)+1.0V
IOUT=30mA, f=1kHz
Current Limit
ILIM
Short-circuit Current
ISHORT
VOUT=VSS
EN "H" Level Voltage
VENH
-
0.9
-
5.5
V
①
EN "L" Level Voltage
VENL
-
VSS
-
0.3
V
①
EN "H" Level Current
IENH
VEN=VIN=5.5V
2.9
6.0
9.5
μA
①
EN "L" Level Current
IENL
VEN=VSS
-0.1
-
0.1
μA
①
-
230
-
Ω
①
CL Auto-discharge
Resistance
Inrush Current
Thermal Shutdown
Detect Temperature
Thermal Shutdown
Release Temperature
Thermal Shutdown
Hysteresis Width
RDCHG
VIN =5.5V, VEN=VSS,
VOUT =2.0V
IRUSH
VIN=5.5V, VCE=0→5.5V
-
150
-
mA
②
TTSD
Junction Temperature
-
150
-
℃
①
TTSR
Junction Temperature
-
125
-
℃
①
TTSD−TTSR
Junction Temperature
-
25
-
℃
①
NOTE:
Unless otherwise stated, VIN=VOUT(T)+1.0V, VEN=VIN
(*1)
VOUT(E) is Effective output voltage
(*2)
VOUT(T) is Nominal output voltage
E-0: OUTPUT VOLTAGE (Refer to the Voltage Chart)
(*3)
(*4)
Vdif={VIN1-VOUT1}
VIN1 is the input voltage when VOUT1 appears at the VOUT pin while input voltage is gradually decreased.
VOUT1 is the voltage equal to 98% of the normal output voltage when amply stabilized VOUT(T) +1.0V is input at the VIN pin.
(*5)
E-1: DROPOUT VOLTAGE (Refer to the Voltage Chart)
(*6)
E-1: When each channel is measured, the other channel is turned off (VEN=VSS)
5/24
XC6423
Series
■ELECTRICAL CHARACTERISTICS (Continued)
Regulator 1, Regulator 2
Voltage Chart
Ta=25℃
E-0
NOMINAL
OUTPUT
VOLTAGE
OUTPUT
DROPOUT
VOLTAGE
VOLTAGE
(V)
(mV)
VOUT(E)
Vdif
(V)
6/24
E-1
VOUT(T)
MIN.
MAX.
1.20
1.1800
1.2200
1.25
1.2300
1.2700
1.30
1.2800
1.3200
1.35
1.3300
1.40
NOMINAL
OUTPUT
VOLTAGE
E-0
E-1
OUTPUT
DROPOUT
VOLTAGE
VOLTAGE
(V)
(mV)
VOUT(E)
Vdif
(V)
TYP.
MAX.
VOUT(T)
MIN.
MAX.
550
650
2.50
2.4750
2.5250
2.55
2.5245
2.5755
2.60
2.5740
2.6260
1.3700
2.65
2.6235
2.6765
1.3800
1.4200
2.70
2.6730
2.7270
1.45
1.4300
1.4700
2.75
2.7225
2.7775
1.50
1.4800
1.5200
2.80
2.7720
2.8280
1.55
1.5300
1.5700
2.85
2.8215
2.8785
1.60
1.5800
1.6200
2.90
2.8710
2.9290
1.65
1.6300
1.6700
2.95
2.9205
2.9795
1.70
1.6800
1.7200
3.00
2.9700
3.0300
1.75
1.7300
1.7700
3.05
3.0195
3.0805
1.80
1.7800
1.8200
3.10
3.0690
3.1310
1.85
1.8300
1.8700
3.15
3.1185
3.1815
1.90
1.8800
1.9200
3.20
3.1680
3.2320
1.95
1.9300
1.9700
3.25
3.2175
3.2825
2.00
1.9800
2.0200
3.30
3.2670
3.3330
2.05
2.0295
2.0705
3.35
3.3165
3.3835
2.10
2.0790
2.1210
3.40
3.3660
3.4340
2.15
2.1285
2.1715
3.45
3.4155
3.4845
2.20
2.1780
2.2220
3.50
3.4650
3.5350
2.25
2.2275
2.2725
3.55
3.5145
3.5855
2.30
2.2770
2.3230
3.60
3.5640
3.6360
2.35
2.3265
2.3735
2.40
2.3760
2.4240
2.45
2.4255
2.4745
480
430
350
300
270
575
520
420
360
325
TYP.
MAX.
220
270
190
240
XC6423
Series
■TEST CIRCUITS
CIN=1.0μＦ, CL=1.0μＦ
Circuit ①
VIN
A
EN1
VOUT1
IOUT1
CL =1uF
(ceramic)
CIN =1uF
(ceramic)
A
V
V
IOUT2
V
A
V
EN2
A
VOUT2
VSS
V
CL=1uF
(ceramic)
Circuit ②
Circuit ③
7/24
XC6423
Series
■OPERATIONAL EXPLANATION
The voltage divided by resistors Rx1 & Rx2 is compared with the internal reference voltage by the error amplifier. The P-ch MOSFET which
is connected to the Output pin (VOUT) is then driven by the subsequent control signal.
and stabilized by a system of negative feedback.
The output voltage at the Output pin (VOUT) is controlled
The current limit circuit, short circuit protection and thermal protection operate in relation to
the level of output voltage, output current and heat dissipation.
XC6423 Series, AB Type
<Low ESR Capacitor>
The XC6423 series needs an output capacitor (CL) for phase compensation.
In order to ensure the stable phase compensation, please
place an output capacitor (CL) of 1.0μF or bigger at the VOUT pin and VSS pin as close as possible.
For a stable power input, please connect an
input capacitor (CIN) of 1.0μF between VIN pin and VSS pin.
<Current Limiter, Short-Circuit Protection>
The XC6423 series has current limiter and droop shape of fold-back circuit.
When the load current reaches the current limit, the droop current
limiter circuit operates and the output voltage drops with keeping the load current.
After that, the output voltage drops to a certain level, the
fold-back circuit operates and the output current goes to decrease with a degree of output voltage decreasing.
The output current finally falls at
the level of 125mA when the output pin is short-circuited.
<EN Pin>
The IC's internal circuitry can be shutdown via the signal from the EN pin.
The XC6423 series has a pull-down resistor at the EN pin inside.
current is generated into the EN pin.
8/24
Even the EN pin is left open, the EN pin is fixed as Low level. However, inflow
XC6423
Series
■OPERATIONAL EXPLANATION (Continued)
<CL Auto-Discharge Function>
The N-ch transistor located between the VOUT pin and the VSS pin and the CL discharge resistance is set to 270Ω (TYP.) when VIN is 5.5V (TYP.)
and VOUT is 2.0V (TYP.).
This N-ch transistor can quickly discharge the electric charge at the output capacitor (CL), when a low signal is inputted to the EN pin. Moreover,
discharge time of the output capacitor (CL) is set by the CL auto-discharge resistance (RDCHG) and the output capacitance (CL).
By setting time constant of a CL auto-discharge resistance (RDCHG) and an output capacitance (CL) as τ(τ= CL x RDCHG), the output voltage
after discharge via the N-ch transistor is calculated by the following formula.
V= VOUT(E) ×e
-t/τ
V: Output voltage after discharge
VOUT(E): Output voltage
t: Discharge time
τ= RDCHG×CL
CL: Output capacitance
RDCHG: CL auto-discharge resistance
or discharge time is calculated by the next formula.
t =τln (VOUT( E ) / V)
<Thermal Shutdown>
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.
<Inrush Current Prevention>
The inrush current prevention circuit is built in the XC6423 series.
When the IC starts to operate, the prevention circuit limits the inrush current as less than 150mA (TYP.) from input pin (VIN) to output pin (VOUT)
for charging output capacitor (CL).
9/24
XC6423
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. Where wiring impedance is high, operations may become unstable due to the noise and/or phase lag depending on output current.
Please strengthen VIN and VSS wiring in particular.
3. Please wire the input capacitor (CIN) and the output capacitor (CL) as close to the IC as possible.
4. Torex places an importance on improving our products and its reliability.
We request that users incorporate fail-safe designs and post-aging prevention treatment when using Torex products in their systems.
10/24
XC6423
Series
■TYPICAL PERFORMANCE CHARACTERISTICS
(1) Output Voltage vs. Output Current
XC6423(VOUT=1.2V)
XC6423(VOUT=1.2V)
Ta=25℃
CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
1.4
1.4
1.2
1.2
1.0
Ta=85℃
0.8
Ta=25℃
0.6
Ta=-40℃
0.4
0.2
Output Voltage : VOUT (V)
Output Voltage : VOUT (V)
VIN=2.2V, CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
0.0
1.0
VIN=1.6V
VIN=2.2V
0.8
VIN=2.7V
0.6
VIN=5.5V
0.4
0.2
0.0
0
50 100 150 200 250 300 350 400 450 500
Output Current : IOUT (mA)
0
XC6423(VOUT=1.8V)
50 100 150 200 250 300 350 400 450 500
Output Current : IOUT (mA)
XC6423(VOUT=1.8V)
Ta=25℃
CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
2.0
2.0
1.8
1.8
1.6
1.4
Ta=85℃
1.2
Ta=25℃
1.0
Ta=-40℃
0.8
0.6
0.4
Output Voltage : VOUT (V)
Output Voltage : VOUT (V)
VIN=2.8V, CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
1.6
1.4
VIN=1.9V
1.2
VIN=2.3V
1.0
VIN=3.3V
0.8
VIN=5.5V
VIN=2.8V
0.6
0.4
0.2
0.2
0.0
0.0
0
0
50 100 150 200 250 300 350 400 450 500
Output Current : IOUT (mA)
XC6423(VOUT=2.5V)
XC6423(VOUT=2.5V)
VIN=3.5V, CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
Ta=25℃
1.5
Ta=-40℃
1.0
0.5
Output Voltage : VOUT (V)
Output Voltage : VOUT (V)
Ta=85℃
2.0
Ta=25℃
CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
3.0
3.0
2.5
50 100 150 200 250 300 350 400 450 500
Output Current : IOUT (mA)
2.5
VIN=2.6V
2.0
VIN=3V
VIN=3.5V
1.5
VIN=4V
VIN=5.5V
1.0
0.5
0.0
0.0
0
50 100 150 200 250 300 350 400 450 500
Output Current : IOUT (mA)
0
50 100 150 200 250 300 350 400 450 500
Output Current : IOUT (mA)
11/24
XC6423
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(1) Output Voltage vs. Output Current (Continued)
XC6423(VOUT=3.6V)
XC6423(VOUT=3.6V)
Ta=25℃
CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
4.0
4.0
3.6
3.6
Output Voltage : VOUT (V)
Output Voltage : VOUT (V)
VIN=4.6V, CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
3.2
2.8
Ta=85℃
2.4
Ta=25℃
2.0
Ta=-40℃
1.6
1.2
0.8
3.2
VIN=3.7V
2.8
VIN=4.1V
2.4
VIN=4.6V
2.0
VIN=5.1V
1.6
VIN=5.5V
1.2
0.8
0.4
0.4
0.0
0.0
0
0
50 100 150 200 250 300 350 400 450 500
Output Current : IOUT (mA)
50 100 150 200 250 300 350 400 450 500
Output Current : IOUT (mA)
(2) Output Voltage vs. Input Voltage
XC6423(VOUT=1.2V)
XC6423(VOUT=1.2V)
Ta=25℃
CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
Ta=25℃
CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
1.30
1.2
Output Voltage : VOUT (V)
Output Voltage : VOUT (V)
1.4
1.0
0.8
0.6
IOUT=1mA
0.4
IOUT=10mA
IOUT=30mA
0.2
1.25
1.20
1.15
IOUT=1mA
IOUT=10mA
1.10
IOUT=30mA
IOUT=100mA
IOUT=100mA
0.0
1.05
0.0
1.0
2.0
3.0
4.0
Input Voltage : VIN (V)
5.0
6.0
2.0
2.5
XC6423(VOUT=1.8V)
1.90
Output Voltage : VOUT (V)
Output Voltage : VOUT (V)
1.5
1.0
IOUT=1mA
IOUT=10mA
IOUT=30mA
IOUT=100mA
0.0
12/24
1.0
5.5
Ta=25℃
CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
2.0
0.0
5.0
XC6423(VOUT=1.8V)
Ta=25℃
CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
0.5
3.0
3.5
4.0
4.5
Input Voltage : VIN (V)
2.0
3.0
4.0
Input Voltage : VIN (V)
5.0
6.0
1.85
1.80
1.75
IOUT=1mA
IOUT=10mA
IOUT=30mA
1.70
IOUT=100mA
1.65
2.0
2.5
3.0
3.5
4.0
4.5
Input Voltage : VIN (V)
5.0
5.5
XC6423
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(2) Output Voltage vs. Input Voltage (Continued)
XC6423(VOUT=2.5V)
XC6423(VOUT=2.5V)
Ta=25℃
CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
2.60
Output Voltage : VOUT (V)
Output Voltage : VOUT (V)
3.0
2.5
2.0
1.5
1.0
IOUT=1mA
IOUT=10mA
IOUT=30mA
0.5
IOUT=100mA
Ta=25℃
CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
0.0
2.55
2.50
2.45
IOUT=1mA
IOUT=10mA
IOUT=30mA
2.40
IOUT=100mA
2.35
0.0
1.0
2.0
3.0
4.0
Input Voltage : VIN (V)
5.0
6.0
3.0
3.5
XC6423(VOUT=3.6V)
Output Voltage : VOUT (V)
Output Voltage : VOUT (V)
3.5
3.0
2.5
2.0
IOUT=1mA
IOUT=10mA
IOUT=30mA
0.5
Ta=25℃
CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
3.70
4.0
1.0
5.5
XC6423(VOUT=3.6V)
Ta=25℃
CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
1.5
4.0
4.5
5.0
Input Voltage : VIN (V)
3.65
3.60
3.55
IOUT=1mA
IOUT=10mA
3.50
IOUT=30mA
IOUT=100mA
IOUT=100mA
0.0
3.45
0.0
1.0
2.0
3.0
4.0
Input Voltage : VIN (V)
5.0
6.0
4
4.5
5
Input Voltage : VIN (V)
5.5
(3) Dropout Voltage vs. Output Current
XC6423(VOUT=1.2)
800
700
600
500
※ Below the minimum operating Voltage
400
300
Ta=85℃
200
Ta=25℃
Ta=-40℃
100
CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
500
Dropout Voltage : Vdif (mV)
Dropout Voltage : Vdif (mV)
XC6423(VOUT=1.8V)
CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
400
300
200
Ta=85℃
100
Ta=25℃
Ta=-40℃
0
0
0
50
100
150
200
250
Output Current : IOUT(mA)
300
0
50
100
150
200
250
Output Current : IOUT(mA)
300
13/24
XC6423
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(3) Dropout Voltage vs. Output Current (Continued)
XC6423(VOUT=2.5V)
XC6423(VOUT=3.6V)
CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
500
Ta=85℃
400
Dropout Voltage : Vdif (mV)
Dropout Voltage : Vdif (mV)
500
Ta=25℃
Ta=-40℃
300
200
100
Ta=85℃
400
Ta=25℃
Ta=-40℃
300
200
100
0
0
0
50
100
150
200
250
300
0
50
Output Current : IOUT(mA)
100
150
200
250
300
Output Curent : IOUT(mA)
(4) Supply Current vs. Input Voltage
XC6423(VOUT=1.2V)
CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
150
CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
150
125
Supply Current : IDD (μA)
Supply Current : IDD (μA)
XC6423(VOUT=1.8V)
100
75
50
Ta=85℃
25
Ta=25℃
125
100
75
50
Ta=85℃
25
Ta=25℃
Ta=-40℃
Ta=-40℃
0
0
0
1
2
3
4
Input Voltage : VIN (V)
5
0
6
1
CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
100
75
50
Ta=85℃
Ta=25℃
125
100
75
50
Ta=85℃
25
Ta=25℃
Ta=-40℃
Ta=-40℃
0
0
0
14/24
6
CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
150
Supply Current : IDD (μA)
Supply Current : IDD (μA)
125
25
5
XC6423(VOUT=3.6V)
XC6423(VOUT=2.5V)
150
2
3
4
Input Voltage : VIN (V)
1
2
3
4
Input Voltage : VIN (V)
5
6
0
1
2
3
4
Input Voltage : VIN (V)
5
6
XC6423
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(5) Output Voltage vs. Ambient Temperature
XC6423(VOUT=1.2V)
XC6423(VOUT=1.8V)
VIN=2.2V, CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
VIN=2.8V, CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
1.30
1.90
IOUT=1mA
IOUT=10mA
1.25
Output Voltage : VOUT (V)
Output Voltage : VOUT (V)
IOUT=1mA
IOUT=30mA
IOUT=100mA
1.20
1.15
1.10
-50
-25
0
25
50
75
Ambient Temperature : Ta (℃)
IOUT=30mA
IOUT=100mA
1.80
1.75
1.70
-50
100
IOUT=10mA
1.85
-25
0
25
50
75
Ambient Temperature : Ta (℃)
100
XC6423(VOUT=3.6V)
XC6423(VOUT=2.5V)
VIN=4.6V, CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
VIN=3.5V, CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
3.70
2.60
IOUT=1mA
Output Voltage : VOUT (V)
Output Voltage : VOUT (V)
IOUT=1mA
IOUT=10mA
2.55
IOUT=30mA
IOUT=100mA
2.50
2.45
2.40
-50
-25
0
25
50
75
Ambient Temperature : Ta (℃)
IOUT=10mA
3.65
IOUT=100mA
3.60
3.55
3.50
-50
100
XC6423
VIN=VOUT+1.0V, CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
CIN=1.0μF(ceramic), CL=1.0μF(ceramic)
1.2
EN Threshold Voltage : VEN (V)
Supply Current : IDD (μA)
130
120
110
100
90
60
50
-50
100
XC6423
140
70
-25
0
25
50
75
Ambient Temperature : Ta (℃)
(7) EN Threshold
vs.vs.
Ambient
Temperature
(7) EN
ThresholdVoltage
Voltage
Ambient
Temperature
(6) Supply Current vs. Ambient Temperature
80
IOUT=30mA
VOUT=1.2V
VOUT=1.8V
VOUT=2.5V
VOUT=3.6V
-25
0
25
50
75
Ambient Temperature : Ta (℃)
100
1.0
0.8
0.6
0.4
EN"H"LEVEL
0.2
0.0
-50
EN"L"LEVEL
-25
0
25
50
75
Ambient Temperature : Ta (℃)
100
15/24
XC6423
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(8) Rising Response Time
XC6423(VOUT=1.8V)
VIN=VEN=0→2.2V, tr=5μs, Ta=25℃
CIN=0.1μF(ceramic), CL=1.0μF(ceramic)
VIN=VEN=0→2.8V, tr=5μs, Ta=25℃
CIN=0.1μF(ceramic), CL=1.0μF(ceramic)
2.0
2.0
1.0
0.0
2.5
1.5
Output Voltage
1.0
-1.0
IOUT=0.1mA
IOUT=1mA
-2.0
IOUT=30mA
0.5
1.0
Input Voltage
2.0
1.5
0.0
1.0
-1.0
IOUT=0.1mA
IOUT=1mA
-2.0
IOUT=30mA
0.5
IOUT=100mA
0.0
0.0
-3.0
Time (40μs/div)
Time (40μs/div)
XC6423(VOUT=2.5V)
XC6423(VOUT=3.6V)
VIN=VEN=0→3.5V, tr=5μs, Ta=25℃
CIN=0.1μF(ceramic), CL=1.0μF(ceramic)
VIN=VEN=0→4.6V, tr=5μs, Ta=25℃
CIN=0.1μF(ceramic), CL=1.0μF(ceramic)
6.0
6.0
6.0
4.0
5.0
4.0
Input Voltage
5.0
2.0
Output Voltage
4.0
Input Voltage
4.0
2.0
0.0
3.0
Output Voltage
2.0
-2.0
IOUT=0.1mA
IOUT=1mA
-4.0
IOUT=30mA
1.0
Input Voltage : VIN (V)
6.0
Output Voltage : VOUT (V)
Input Voltage : VIN (V)
2.5
Output Voltage
IOUT=100mA
-3.0
3.0
3.0
0.0
-2.0
IOUT=0.1mA
IOUT=1mA
-4.0
IOUT=30mA
1.0
IOUT=100mA
IOUT=100mA
0.0
-6.0
2.0
Output Voltage : VOUT (V)
Input Voltage
3.0
Input Voltage : VIN (V)
Input Voltage : VIN (V)
2.0
3.0
Output Voltage : VOUT (V)
3.0
Output Voltage : VOUT (V)
XC6423(VOUT=1.2V)
0.0
-6.0
Time (40μs/div)
Time (40μs/div)
(9) Input Transient Response
XC6423(VOUT=1.2V)
XC6423(VOUT=1.8V)
1.40
4.8
2.2
1.30
1.2
1.25
Output Voltage
1.20
0.2
IOUT=0.1mA
IOUT=1mA
1.15
Input Voltage : VIN (V)
1.35
Output Voltage : VOUT (V)
Input Voltage : VIN (V)
3.2
3.8
1.95
2.8
1.90
IOUT=100mA
Time (100μs/div)
16/24
1.10
1.85
1.8
Output Voltage
1.80
0.8
IOUT=0.1mA
-0.2
IOUT=30mA
-1.8
2.00
Input Voltage
Input Voltage
-0.8
VIN=2.8⇔3.8V, tr=tf=5μs, Ta=25℃
CIN=0.1μF(ceramic), CL=1.0μF(ceramic)
-1.2
IOUT=1mA
IOUT=30mA
IOUT=100mA
Time (100μs/div)
1.75
1.70
Output Voltage : VOUT (V)
4.2
VIN=2.2⇔3.2V, tr=tf=5μs, Ta=25℃
CIN=0.1μF(ceramic), CL=1.0μF(ceramic)
XC6423
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(9) Input Transient Response (Continued)
XC6423(VOUT=2.5V)
2.70
6.5
2.65
3.5
2.60
2.55
2.5
Output Voltage
2.50
1.5
IOUT=0.1mA
IOUT=1mA
IOUT=30mA
IOUT=100mA
-0.5
2.45
Input Voltage : VIN (V)
4.5
0.5
3.80
Input Voltage
Output Voltage : VOUT (V)
Input Voltage : VIN (V)
Input Voltage
VIN=4.6⇔5.5V, tr=tf=5μs, Ta=25℃
CIN=0.1μF(ceramic), CL=1.0μF(ceramic)
5.5
3.75
4.5
3.70
3.65
3.5
Output Voltage
3.60
2.5
IOUT=0.1mA
IOUT=1mA
1.5
2.40
IOUT=30mA
IOUT=100mA
0.5
Time (100μs/div)
3.55
Output Voltage : VOUT (V)
5.5
XC6423(VOUT=3.6V)
VIN=3.5⇔4.5V, tr=tf=5μs, Ta=25℃
CIN=0.1μF(ceramic), CL=1.0μF(ceramic)
3.50
Time (100μs/div)
(10) Load Transient Response
XC6423(VOUT=1.2V)
XC6423(VOUT=1.8V)
IOUT=1⇔100mA, tr=tf=0.5μs, Ta=25℃
VIN=2.2V, CIN=CL=1.0μF(ceramic)
1.85
500
1.25
200
1.10
Output Current
100mA
1mA
400
1.75
300
Output Current
100mA
1.65
0
1.60
Time (20μs/div)
Time (20μs/div)
XC6423(VOUT=2.5V)
XC6423(VOUT=3.6V)
IOUT=1⇔100mA, tr=tf=0.5μs, Ta=25℃
VIN=3.5V, CIN=CL=1.0μF(ceramic)
3.65
500
300
2.40
200
Output Current
100mA
1mA
Time (20μs/div)
100
0
Output Voltage : VOUT (V)
2.45
Output Current : IOUT (mA)
400
2.30
IOUT=1⇔100mA, tr=tf=0.5μs, Ta=25℃
VIN=4.6V, CIN=CL=1.0μF(ceramic)
500
Output Voltage
2.50
2.35
100
1mA
0
Output Voltage
Output Voltage : VOUT (V)
200
1.70
3.60
400
3.55
300
200
3.50
Output Current
100mA
3.45
1mA
3.40
100
Output Current : IOUT (mA)
2.55
100
1.80
Output Current : IOUT (mA)
300
Output Voltage : VOUT (V)
1.15
Output Current : IOUT (mA)
Output Voltage : VOUT (V)
400
1.00
500
Output Voltage
Output Voltage
1.20
1.05
IOUT=1⇔100mA, tr=tf=0.5μs, Ta=25℃
VIN=2.8V, CIN=CL=1.0μF(ceramic)
0
Time (20μs/div)
17/24
XC6423
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(11) EN Rising Response Time
XC6423(VOUT=1.2V)
XC6423(VOUT=1.8V)
VEN=0→2.2V, tr=5μs, Ta=25℃
VIN=2.2V, CIN=CL=1.0μF(ceramic)
3.0
3.0
3.0
2.5
2.0
VEN=0→2.8V, tr=5μs, Ta=25℃
VIN=2.8V, CIN=CL=1.0μF(ceramic)
3.0
1.5
Output Voltage
1.0
-1.0
IOUT=0.1mA
IOUT=1mA
-2.0
0.5
IOUT=30mA
Output Voltage
1.0
1.5
0.0
-1.0
IOUT=1mA
-2.0
0.0
0.0
-3.0
Time (40μs/div)
Time (40μs/div)
XC6423(VOUT=2.5V)
XC6423(VOUT=3.6V)
5.0
4.0
EN Input Voltage
5.0
2.0
Output Voltage
4.0
4.0
2.0
0.0
3.0
Output Voltage
-2.0
2.0
IOUT=0.1mA
IOUT=1mA
-4.0
1.0
IOUT=30mA
6.0
6.0
EN Input Voltage : VEN (V)
EN Input Voltage
VEN=0→4.6V, tr=5μs, Ta=25℃
VIN=4.6V, CIN=CL=1.0μF(ceramic)
6.0
Output Voltage : VOUT (V)
VEN=0→3.5V, tr=5μs, Ta=25℃
VIN=3.5V, CIN=CL=1.0μF(ceramic)
4.0
0.5
IOUT=30mA
IOUT=100mA
-3.0
6.0
1.0
IOUT=0.1mA
IOUT=100mA
EN Input Voltage : VEN (V)
2.0
3.0
0.0
-2.0
2.0
IOUT=0.1mA
IOUT=1mA
-4.0
1.0
IOUT=30mA
IOUT=100mA
IOUT=100mA
0.0
-6.0
0.0
-6.0
Time (40μs/div)
Time (40μs/div)
(12) Power Supply Rejection Ratio
XC6423(VOUT=1.2V)
XC6423(VOUT=1.8V)
Ta=25℃
VIN=3.0V+0.5Vp-pAC, CL=1.0μF(ceramic)
Ta=25℃
VIN=3.0V+0.5Vp-pAC, CL=1.0μF(ceramic)
100
Power Supply Rejection Ratio
: PSRR (dB)
Power Supply Rejection Ratio
: PSRR (dB)
100
80
60
40
IOUT=0.1mA
IOUT=1mA
20
IOUT=30mA
IOUT=100mA
0
60
40
IOUT=0.1mA
IOUT=1mA
20
IOUT=30mA
IOUT=100mA
0
0.1
18/24
80
1
10
100
Frequency : f (kHz)
1000
0.1
1
10
100
Frequency : f (kHz)
1000
Output Voltage : VOUT (V)
0.0
2.5
Output Voltage : VOUT (V)
2.0
1.0
EN Input Voltage : VEN (V)
EN Input Voltage
Output Voltage : VOUT (V)
EN Input Voltage : VEN (V)
EN Input Voltage
2.0
XC6423
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(12) Power Supply Rejection Ratio (Continued)
XC6423(VOUT=2.5V)
XC6423(VOUT=3.6V)
Ta=25℃
VIN=3.5V+0.5Vp-pAC, CL=1.0μF(ceramic)
Ta=25℃
VIN=4.6V+0.5Vp-pAC, CL=1.0μF(ceramic)
100
Power Supply Rejection Ratio
: PSRR (dB)
Power Supply Rejection Ratio
: PSRR (dB)
100
80
60
40
IOUT=0.1mA
IOUT=1mA
20
IOUT=30mA
IOUT=100mA
80
60
40
IOUT=0.1mA
IOUT=1mA
20
IOUT=30mA
IOUT=100mA
0
0
0.1
1
10
100
Frequency : f (kHz)
0.1
1000
1
10
100
Frequency : f (kHz)
1000
(13) Inrush Current Response
XC6423(VOUT=1.8V)
300
Output Voltage
250
0.0
200
-1.0
150
100
-2.0
-3.0
Rush Current
-4.0
-1.0
150
-3.0
0
-4.0
500
5.0
450
4.0
3.0
2.0
350
1.0
300
0.0
250
-1.0
200
-2.0
150
Rush Current
100
-4.0
50
-5.0
0
Time (20μs/div)
100
50
0
XC6423(VOUT=3.6V)
400
-3.0
Rush Current
Time (10μs/div)
3.0
Output Voltage
250
200
-2.0
Voltage (V)
EN Input Voltage
300
0.0
50
Rush Current : IRUSH (mA)
Voltage (V)
4.0
400
350
Output Voltage
1.0
XC6423(VOUT=2.5V)
5.0
EN Input Voltage
2.0
Time (10μs/div)
VEN=0V→VIN, tr=5μs, Ta=25℃
VIN=3.5V, CIN=CL=1.0μF(ceramic)
VEN=0V→VIN, tr=5μs, Ta=25℃
VIN=2.8V, CIN=CL=1.0μF(ceramic)
2.0
1.0
VEN=0V→VIN, tr=5μs, Ta=25℃
VIN=4.6V, CIN=CL=1.0μF(ceramic)
EN Input Voltage
Output Voltage
500
450
400
350
300
0.0
250
-1.0
-2.0
200
150
-3.0
-4.0
Rush Current
100
50
Rush Current : IRUSH (mA)
Voltage (V)
2.0
1.0
3.0
350
EN Input Voltage
Voltage (V)
3.0
4.0
400
Rush Current : IRUSH (mA)
4.0
VEN=0V→VIN, tr=5μs, Ta=25℃
VIN=2.2V, CIN=CL=1.0μF(ceramic)
Rush Current : IRUSH (mA)
XC6423(VOUT=1.2V)
0
-5.0
Time (20μs/div)
19/24
XC6423
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(14) Cross Talk
XC6423(VOUT1=1.8V, VOUT2=1.8V)
XC6423(VOUT1=3.6V, VOUT2=3.6V)
IOUT1=30mA, IOUT2=1mA⇔150mA, tr=tf=0.5μs, Ta=25℃
VIN=4.6V, CIN=CL1=CL2=1.0μF(ceramic)
Output Voltage(VR1 : 30mA)
1.80
1.75
300
Output Current
（VR2 : 1mA⇔150mA)
1.70
200
100
1.65
0
Time (100μs/div)
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400
Output Voltage(VR1) : VOUT (V)
1.85
3.70
500
Output
Current(VR2)
: IOUT
Output
Current
(VR2): IOUT
(mA)
(mA)
Output Voltage(VR1) : VOUT (V)
1.90
3.65
500
Output Voltage(VR1 : 30mA)
3.60
3.55
400
300
Output Current
（VR2 : 1mA⇔150mA)
3.50
200
100
3.45
0
Time (100μs/div)
Output
Current(VR2)
: IOUT
Output
Current
(VR2): IOUT
(mA)
(mA)
IOUT1=30mA, IOUT2=1mA⇔150mA, tr=tf=0.5μs, Ta=25℃
VIN=2.8V, CIN=CL1=CL2=1.0μF(ceramic)
XC6423
Series
■PACKAGING INFORMATION
●LGA-6A01 (unit:mm)
1.2±0.05
1pin INDENT
:レジスト
RESIST LAYER
LEAD TERMINAL
:リード端子
0.45±0.05
0.45±0.05
0.20±0.05
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XC6423
Series
● LGA-6A01 Power Dissipation
Power dissipation data for the LGA-6A01 is shown in this page.
The value of power dissipation varies with the mount board conditions.
Please use this data as the reference data taken in the following condition.
1. Measurement Condition
Condition
: Mount on a board
Ambient
: Natural convection
Soldering
: Lead (Pb) free
Board Dimensions : 40mm×40mm (1600mm2 in one side)
st
Metal Area
: 1 Metal Layer about 50%
2nd Inner Metal Layer about 50%
3rd Inner Metal Layer about 50%
4th Metal Layer about 50%
Each heat sink back metal is connected to
the Inner layers respectively.
Material
: Glass Epoxy (FR-4)
Thickness
: 1.0 mm
Through-hole
: 4 x 0.4 Diameter
2. Power Dissipation vs. Ambient Temperature Board Mount
Evaluation Board (Unit: mm)
Board Mount (Tjmax=125℃)
Ambient Temperature (℃)
25
85
Power Dissipation Pd (mW)
650
260
Thermal Resistance (℃/W）
153.85
Power
Dissipation: Pd (mW)
許容損失Pd（mW）
Pd-Ta特性グラフ
Pd vs. Ta
700
600
500
400
300
200
100
0
25
22/24
45
65
85
周囲温度Ta（℃）
Ambient
Temperature: Ta (℃)
105
125
XC6423
Series
■MARKING RULE
LGA-6A01
① represents product series
MARK
1
PRODUCT SERIES
XC6423******-G
①
6
2
④
②
5
3
⑤
③
4
1
②,③ represents output voltage
MARK
②
0
③
1
PRODUCT SERIES
XC6423**01**-G
④,⑤ represents production lot number
01∼09, 0A∼0Z, 11∼9Z, A1∼A9, AA∼AZ, B1∼ZZ in order.
(G, I, J, O, Q, W excluded)
* No character inversion used.
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XC6423
Series
1. The products 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. We assume no responsibility for any infringement of patents, patent rights, or other
rights arising from the use of any information and circuitry in this datasheet.
3. Please ensure suitable shipping controls (including fail-safe designs and aging
protection) are in force for equipment employing products listed in this datasheet.
4. The products in this datasheet are not developed, designed, or approved for use with
such equipment whose failure of malfunction can be reasonably expected to directly
endanger the life of, or cause significant injury to, the user.
(e.g. Atomic energy; aerospace; transport; combustion and associated safety
equipment thereof.)
5. Please use the products listed in this datasheet within the specified ranges.
Should you wish to use the products under conditions exceeding the specifications,
please consult us or our representatives.
6. We assume no responsibility for damage or loss due to abnormal use.
7. All rights reserved. No part of this datasheet may be copied or reproduced without the
prior permission of TOREX SEMICONDUCTOR LTD.
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