XC6401 Series
ETR0309_005
Dual LDO Regulators, Low ESR Cap. Compatible
■GENERAL DESCRIPTION
The XC6401 series are highly accurate, Dual, low noise, CMOS LDO voltage regulators. Performance features of the series
includes low output noise, high ripple rejection ratio, low dropout and very fast turn-on times.
The XC6401 includes a reference voltage source, error amplifiers, driver transistors, current limiters and phase
compensators internally. The XC6401’s current limiters' foldback circuit also operates as a short protect for the output current
limiter. The output voltage for each regulator is set independently by laser trimming. Voltages are selectable in 50mV steps
within a range of 0.8V to 5.0V. The XC6401 series is also fully compatible with low ESR ceramic capacitors, reducing cost
and improving output stability.
This high level of output stability is maintained even during frequent load fluctuations, due to the excellent transient response
performance and high PSRR achieved across a broad range of frequencies. The EN function allows the output of each
regulator to be turned off independently, resulting in greatly reduced power consumption. The XC6401 series is available in
the SOT-26W or USP-6B, USP-6C ‘chip-scale’ package.
■APPLICATIONS
■FEATURES
●Mobile Phones
●Cordless phones and
radio communication equipment
●Portable games
●Cameras, Video recorders
●Portable Audio Equipment
●PDAs
Maximum Output Current
: More than 150mA (300mA limit)
Dropout Voltage
: 100mV @100mA
Operating Voltage Range
: 1.5V ~ 6.0V
Output Voltage Range
: 0.8V~5.0V (50mV increments)
Highly Accurate
: ±2% (VOUT>1.5V)
: ±30mV (VOUT≦1.5V)
Low Power Consumption
: 25μA (TYP.)
Standby Current
: Less than 0.1μA (TYP.)
High Ripple Rejection
: 70dB @1kHz
Operating Temperature Range : -40℃ ~ +85℃
Low ESR Capacitor Compatible : Ceramic capacitor
Low Output Noise
Ultra Small Packages
: SOT-26W,USP-6B,USP-6C
■TYPICAL APPLICATION CIRCUITS ■TYPICAL PERFORMANCE
CHARACTERISTICS
●SOT-26W
VOUT1
2
VIN
VSS
5
3
EN2
VOUT2
4
6
1
●Interactive Load Transient Response
EN1
CL1
1uF
CIN
1uF
CL2
1uF
●USP-6
CIN
1uF
1
EN2 VOUT2
6
2
VIN VOUT1
5
3
EN1 VSS
4
CL1
1uF
CL2
1uF
1/24
XC6401 Series
■PIN CONFIGURATION
VOUT1
VSS
6
6
1
EN1
VOUT2
5
4
3
2
VIN
EN2
SOT-26W
(TOP VIEW)
USP-6B / 6C
(BOTTOM VIEW)
*The dissipation pad for the USP-6B/C packages
should be solder-plated in recommended 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 pin.
■PIN ASSIGNMENT
PIN NUMBER
SOT-26W
USP-6B/C
1
3
2
2
3
1
4
6
5
4
6
5
PIN NAME
FUNCTION
EN1
VIN
EN2
VOUT2
VSS
VOUT1
ON/OFF Control 1
Power Input
ON/OFF Control 2
Output 2
Ground
Output 1
■PRODUCT CLASSIFICATION
●Selection Guide
The following options for the Regulator 1, 2, the EN pin logic, internal pull-up / down are available.
●Ordering Information
XC6401①②③④⑤⑥
DESIGNATOR
DESCRIPTION
①
Regulator1,
EN type
②
Regulator2,
EN type
③④
Output Voltage
⑤
Packaging Types
SYMBOL
E
F
G
H
E
F
G
H
01~
M
⑥
2/24
Device Orientation
DESCRIPTION
: High Active with pull-down resistor
: High Active with no pull-down resistor
: Low Active with pull-up resistor
: Low Active with no pull-up resistor
: High Active with pull-down resistor
: High Active with no pull-down resistor
: Low Active with pull-up resistor
: Low Active with no pull-up resistor
: Internally set sequential number relating output voltage of
each regulators
Regulator 1 Output Voltage Range: 0.8 ~ 5.0 V (50mV increments)
Regulator 2 Output Voltage Range: 0.8 ~ 5.0 V (50mV increments)
: SOT-26W
D
: USP-6B
E
: USP-6C
R
L
: Embossed tape, standard feed
: Embossed tape, reverse feed
XC6401
Series
■ABSOLUTE MAXIMUM RATINGS
PARAMETER
Input Voltage
Output Current
Output Voltage
EN Pin Voltage
SOT-26W
Power Dissipation
USP-6B
USP-6C
Operating Temperature Range
Storage Temperature Range
Ta = 25℃
SYMBOL
RATINGS
UNITS
VIN
IOUT1 + IOUT2
VOUT
VEN
6.5
700
VSS -0.3 ~ VIN +0.3
VSS -0.3 ~ 6.5
250
100
100
-40 ~ +85
-55 ~ +125
V
mA
V
V
Pd
Topr
Tstg
mW
℃
℃
* Sum of IOUT1 and IOUT2.
** Pd=(VIN-VOUT1)xIOUT1+(VIN-VOUT2)xIOUT2
■ELECTRICAL CHARACTERISTICS
XC6401FFxx
Regulator 1, Regulator 2
Ta=25℃
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
CIRCUIT
Output Voltage (*3)
VOUT (E)
VIN=VOUT (T) + 1.0V IOUT=30mA
0.98
VOUT(T)
1.02
V
1
Maximum Output Current
IOUTMAX
VIN=VOUT (T) + 1.0V
150
-
-
mA
1
Load Regulation
△VOUT
1mA≦IOUT≦100mA
-
15
60
mV
1
Vdif1
IOUT=30mA
E-1
mV
Vdif2
IOUT=100mA
VIN=VEN=VOUT (T) + 1.0V,
IOUT=0mA
E-2
mV
Dropout Voltage
Supply Current
ISS
Standby Current
ISTB
VIN=VOUT (T) + 1.0V, VEN=VSS
△VOUT
VOUT(T)+1.0V≦VIN≦6.0V
Line Regulation (*7)
△VIN
・
VOUT
Input Voltage
VIN
Output Voltage
△VOUT
Temperature Characteristics △Topr ･ VOUT
VEN=VIN, IOUT=30mA
IOUT=30mA
1
-
25
45
μA
2
-
0.01
0.10
μA
3
-
0.01
0.20
%/V
1
1.5
-
6.0
V
-
-
±100
-
ppm/℃
1
-
70
-
dB
5
-
300
-
mA
1
-
30
-
mA
1
Ripple Rejection Rate(*8)
PSRR
Current Limiter
Ilim
-40℃≦Topr≦85℃
VIN=[VOUT(T)+1.0]VDC+0.5Vp-pAC
IOUT=30mA, f=1kHz
VIN=VOUT (T) + 1.0V, VEN=VIN
Short-Circuit Current
Ishort
VIN=VOUT (T) + 1.0V, VEN=VIN
EN "High" Voltage
VENH
1.30
-
6.0
V
4
EN "Low" Voltage
VENL
-
-
0.25
V
4
EN "High" Current
IENH
VIN=VEN=VOUT (T) + 1.0V
-0.10
-
0.10
μA
4
EN "Low" Current
IENL
VIN= VOUT (T) + 1.0V, VEN=VSS
-0.10
-
0.10
μA
4
NOTE
*1: VOUT(T)=Specified output voltage
*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: If VOUT (T)≦1.45V, MIN VOUT (T) - 30mV, MAX VOUT (T) + 30mV
(*6)
(*5)
*4: Vdif={VIN1 -VOUT1 }
*5: VOUT1=A voltage equal to 98% of the output voltage whenever an amply stabilized IOUT {VOUT(T)+1.0V} is input.
*6: VIN1=the input voltage when VOUT1 appears as input voltage is gradually decreased.
*7: When VOUT(T)>4.5V, 5.5V<VIN<6.0V
*8: When VOUT(T)>4.8V, VIN=5.75VDC+0.5Vp-pAC
*9: Unless otherwise stated, VIN=VOUT(T)+1.0V
3/24
XC6401 Series
■ELECTRICAL CHARACTERISTICS (Continued)
●Dropout Voltage
SETTING OUTPUT VOLTAGE
DETECT VOLTAGE
(V)
VOUT
(V)
VOUT(T)
0.80
0.85
0.90
0.95
1.00
1.05
1.10
1.15
1.20
1.25
1.30
1.35
1.40
1.45
1.50
1.55
1.60
1.65
1.70
1.75
1.80
1.85
1.90
1.95
2.00
2.05
2.10
2.15
2.20
2.25
2.30
2.35
2.40
2.45
2.50
2.55
2.60
2.65
2.70
2.75
2.80
2.85
2.90
2.95
4/24
MIN.
0.770
0.820
0.870
0.920
0.970
1.020
1.070
1.120
1.170
1.220
1.270
1.320
1.370
1.420
1.470
1.519
1.568
1.617
1.666
1.715
1.764
1.813
1.862
1.911
1.960
2.009
2.058
2.107
2.156
2.205
2.254
2.303
2.352
2.401
2.450
2.499
2.548
2.597
2.646
2.695
2.744
2.793
2.842
2.891
MAX.
0.830
0.880
0.930
0.980
1.030
1.080
1.130
1.180
1.230
1.280
1.330
1.380
1.430
1.480
1.530
1.581
1.632
1.683
1.734
1.785
1.836
1.887
1.938
1.989
2.040
2.091
2.142
2.193
2.244
2.295
2.346
2.397
2.448
2.499
2.550
2.601
2.652
2.703
2.754
2.805
2.856
2.907
2.958
3.009
E-1
DROPOUT VOLTAGE 1
(mV)
Vdif 1
TYP.
MAX.
E-2
DROPOUT VOLTAGE 2
(mV)
Vdif 2
TYP.
MAX.
300
700
400
800
200
600
350
700
100
500
270
600
80
400
240
500
65
300
200
400
60
200
180
300
55
100
165
250
50
75
150
200
45
65
140
180
40
60
120
170
35
55
110
160
XC6401
Series
■DROPOUT VOLTAGE CHART (Continued)
●Dropout Voltage (Continued)
SETTING OUTPUT VOLTAGE
DETECT VOLTAGE
(V)
VOUT
(V)
VOUT(T)
3.00
3.05
3.10
3.15
3.20
3.25
3.30
3.35
3.40
3.45
3.50
3.55
3.60
3.65
3.70
3.75
3.80
3.85
3.90
3.95
4.00
4.05
4.10
4.15
4.20
4.25
4.30
4.35
4.40
4.45
4.50
4.55
4.60
4.65
4.70
4.75
4.80
4.85
4.90
4.95
5.00
MIN.
2.940
2.989
3.038
3.087
3.136
3.185
3.234
3.283
3.332
3.381
3.430
3.479
3.528
3.577
3.626
3.675
3.724
3.773
3.822
3.871
3.920
3.969
4.018
4.067
4.116
4.165
4.214
4.263
4.312
4.361
4.410
4.459
4.508
4.557
4.606
4.655
4.704
4.753
4.802
4.851
4.900
MAX.
3.060
3.111
3.162
3.213
3.264
3.315
3.366
3.417
3.468
3.519
3.570
3.621
3.672
3.723
3.774
3.825
3.876
3.927
3.978
4.029
4.080
4.131
4.182
4.233
4.284
4.335
4.386
4.437
4.488
4.539
4.590
4.641
4.692
4.743
4.794
4.845
4.896
4.947
4.998
5.049
5.100
E-1
DROPOUT VOLTAGE 1
(mV)
Vdif 1
TYP.
MAX.
30
45
E-2
DROPOUT VOLTAGE 2
(mV)
Vdif 2
TYP.
MAX.
100
150
5/24
XC6401 Series
■OPERATIONAL EXPLANATION
＜Output Voltage Control＞
The voltage divided by resistors R1 & R2 is compared with the internal reference voltage by the error amplifier. The
P-channel MOSFETs, which are connected to the VOUT1 and VOUT2 pins, are then driven by the subsequent output
signal. The output voltages at the VOUT1 and VOUT2 pins are controlled and stabilized by a system of negative
feedback. The current limit circuit and short protect circuit operate in relation to the level of output current. Further, the
IC's internal circuitry can be shutdown via the EN pin's signal.
EN1
ON/OFF
Control
+
Error
Amp1
Current
Limit
V OUT1
VR1
each
circuit
R11
R12
VIN
V SS
+
Error
Amp2
Current
Limit
V OUT2
VR2
each
circuit
R21
Voltage
Reference
EN2
ON/OFF
Control
R22
＜Low ESR Capacitors＞
With the XC6401 series, a stable output voltage is achievable even if used with low ESR capacitors as a phase
compensation circuit is built-in. In order to ensure the effectiveness of the phase compensation, we suggest that output
capacitors (CL1, CL2) is connected as close as possible to the output pins (VOUT1 and VOUT2) and the VSS pin.
Please use an output capacitor with a capacitance value of at least 1μF. Also, please connect an input capacitor (CIN) of
1μF between the VIN pin and the VSS pin in order to ensure a stable power input.
＜Current Limiter, Short-Circuit Protection＞
The XC6401 series includes a combination of a fixed current limiter circuit & a foldback circuit which aid the operations of
the current limiter and circuit protection. When the load current reaches the current limit level, the fixed current limiter
circuit operates and output voltage drops. As a result of this drop in output voltage, the foldback circuit operates, output
voltage drops further and output current decreases. When the output pin is shorted, a current of about 30mA flows.
＜EN Pins＞
The IC's internal circuitry can be shutdown via the signal from the EN1 and EN2 pins with the XC6401 series. In
shutdown mode, output at the VOUT1 and VOUT2 pins will be pulled down to the VSS level via R11 & R12 and R21 & R22.
The operational logic of the IC's EN1 and EN2 pins are selectable (please refer to the selection guide). Note that as the
standard XC6401FF type's regulator 1 and 2 are both ' High Active/No Pull Down', operations will become unstable with
the EN1 or EN2 pins open. Although the EN1 and EN2 pins are equal to an inverter input with CMOS hysteresis, with
either the pull-up or pull-down options, the EN1 and EN2 pins input current will increase when the IC is in operation.
We suggest that you use this IC with either a VIN voltage or a VSS voltage input at the EN1 and EN2 pins. If this IC is
used with the correct specifications for the EN1 and EN2 pins, the operational logic is fixed and the IC will operate
normally. However, supply current may increase as a result of through current in the IC's internal circuitry.
■NOTES ON USE
1. Please use this IC within the stated absolute maximum ratings.
The IC is liable to malfunction should the ratings be exceeded.
2. Where wiring impedance is high, operations may become unstable due to noise and/or phase lag
depending on output current. Please keep the resistance low between VIN and VSS wiring in particular.
3. Please wire the input capacitor (CIN) and the output capacitors (CL1, CL2) as close to the IC as possible.
6/24
XC6401
Series
■TEST CIRCUITS
Circuit ①
CIN, CL1, CL2 : 1μF(ceramic)
V IN
EN1
V
VOUT1
CIN
A
CL1
IOUT1
V
RL1
EN2
VOUT2
VSS
EN1/EN2 :
High Active = EN=VIN
Low Active = EN=VSS
A
CL2
IOUT2
V
RL2
Circuit ②
EN1/EN2 :
1. High Active with pull-down resistor built-in
VR1 Supply Current ISS1=I1 (Note:EN1=ON, EN2=OFF)
VR2 Supply Current ISS2=I1 (Note:EN1=OFF, EN2=ON)
2. High Active with no pull-down resistor built-in
VR1 Supply Active Current ISS1=I1
(Note:EN1=ON, EN2=OFF)
VR2 Supply Current ISS2=I1 (Note:EN1=OFF, EN2=ON)
3. Low Active with pull-up resistor built-in
VR1 Supply Current ISS1=I1+I2
(Note:EN1=ON, EN2=OFF)
VR2 Supply Current ISS2=I1+I3
(Note:EN1=OFF, EN2=ON)
4. Low Active with no pull-up resistor built-in
VR1 Supply Current ISS1=I1 (Note:EN1=ON, EN2=OFF)
VR2 Supply Current ISS2=I1 (Note:EN1=OFF, EN2=ON)
Circuit ③
EN1/EN2:
High Active = EN= VSS
Low Active = EN= VIN
7/24
XC6401 Series
■TEST CIRCUITS (Continued)
Circuit ④
Circuit ⑤
EN1/EN2 :
High Active = EN=VIN
Low Active = EN=VSS
8/24
XC6401
Series
■TYPICAL PERFORMANCE CHARACTERISTICS
(1) Output Voltage vs. Output Current
XC6401 (0.8V)
VIN=1.8V
CIN=1uF (ceramics), CL=1uF (ceramics)
1.0
0.8
Topr = 85OC
= 25OC
= - 40OC
0.6
0.4
0.2
VIN=4.0V
CIN=1uF (ceramics), CL=1uF (ceramics)
1.0
Output Voltage VOUT (V)
Output Voltage VOUT (V)
XC6401(0.8V)
0.8
VIN =
=
=
=
0.6
0.4
0.2
0.0
0.0
0
50
100 150 200 250 300
Output Current IOUT (mA)
0
350
50
XC6401(2.85V)
350
VIN=4.0V
CIN=1uF (ceramics), CL=1uF (ceramics)
4.0
3.5
3.5
Output Voltage VOUT (V)
Output Voltage VOUT (V)
100 150 200 250 300
Output Current IOUT (mA)
XC6401(2.85V)
VIN=3.85V
CIN=1uF (ceramics), CL=1uF (ceramics)
4.0
3.0
2.5
Topr = 85OC
= 25OC
= - 40OC
2.0
1.5
1.0
0.5
3.0
2.5
VIN = 6.0V
= 4.0V
= 3.15V
2.0
1.5
1.0
0.5
0.0
0.0
0
50
100
150
200
250
300
350
0
50
Output Current IOUT (mA)
150
200
250
300
350
XC6401(3.0V)
VIN=4.0V
CIN=1uF (ceramics), CL=1uF (ceramics)
4.0
100
Output Current IOUT (mA)
XC6401(3.0V)
VIN=4.0V
CIN=1uF (ceramics), CL=1uF (ceramics)
4.0
3.5
3.5
3.0
2.5
Output Voltage VOUT (V)
Output Voltage VOUT (V)
6.0V
1.8V
1.8V
1.5V
Topr = 85OC
= 25OC
= - 40OC
2.0
1.5
1.0
0.5
3.0
VIN = 6.0V
= 4.0V
= 3..3V
2.5
2.0
1.5
1.0
0.5
0.0
0.0
0
50
100
150
200
250
Output Current IOUT (mA)
300
350
0
50
100 150 200 250 300
Output Current IOUT (mA)
350
9/24
XC6401 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(1) Output Voltage vs. Output Current (Continued)
XC6401(5.0V)
XC6401(5.0V)
VIN=6.0V
CIN=1uF (ceramics), CL=1uF (ceramics)
6.0
6.0
5.0
4.0
Output Voltage VOUT (V)
5.0
Output Voltage VOUT (V)
VIN=4.0V
CIN=1uF (ceramics), CL=1uF (ceramics)
Topr = 85OC
= 25OC
= - 40OC
3.0
2.0
1.0
0.0
4.0
VIN = 6.0V
= 5.3V
3.0
2.0
1.0
0.0
0
50
100 150 200 250 300
Output Current IOUT (mA)
350
0
50
100
150
200
250
300
350
Output Current IOUT (mA)
(2) Output Voltage vs. Input Voltage
XC6401(0.8V)
1.2
1.1
IOUT =
0mA
= 30mA
= 100mA
1.0
0.9
0.8
0.7
Topr = 25OC
CIN=1uF (ceramics), CL=1uF (ceramics)
0.90
Output Voltage VOUT (V)
Output Voltage VOUT (V)
XC6401(0.8V)
Topr = 25OC
CIN=1uF (ceramics), CL=1uF (ceramics)
0.6
0.5
0.85
0.80
IOUT =
0mA
= 30mA
= 100mA
0.75
0.70
0.65
0.5
1.0
1.5
2.0
2.5
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
Input Voltage VIN (V)
Input Voltage VIN (V)
XC6401(2.85V)
2.85
2.65
2.45
IOUT =
0mA
= 30mA
= 100mA
2.25
2.05
2.35
2.90
2.85
IOUT =
0mA
= 30mA
= 100mA
2.80
2.75
2.70
2.85
Input Voltage VIN (V)
10/24
Topr = 25OC
CIN=1uF (ceramics), CL=1uF (ceramics)
2.95
Output Voltage VOUT (V)
Output Voltage VOUT (V)
3.05
XC6401(2.85V)
Topr = 25OC
CIN=1uF (ceramics), CL=1uF (ceramics)
3.35
3.0
3.5
4.0
4.5
5.0
Input Voltage VIN (V)
5.5
6.0
XC6401
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(2) Output Voltage vs. Input Voltage (Continued)
XC6401(3.0V)
XC6401(3.0V)
Topr = 25OC
CIN=1uF (ceramics), CL=1uF (ceramics)
3.0
2.8
IOUT =
0mA
= 30mA
= 100mA
2.6
3.10
Output Voltage VOUT (V)
Output Voltage VOUT (V)
3.2
2.4
Topr = 25OC
CIN=1uF (ceramics), CL=1uF (ceramics)
3.05
3.00
IOUT =
0mA
= 30mA
= 100mA
2.95
2.90
2.85
2.2
2.5
3.0
3.5
3.5
4.0
4.5
XC6401(5.0V)
6.0
4.8
IOUT =
0mA
= 30mA
= 100mA
4.4
Topr = 25OC
CIN=1uF (ceramics), CL=1uF (ceramics)
5.10
Output Voltage VOUT (V)
Output Voltage VOUT (V)
5.0
4.6
5.5
XC6401(5.0V)
Topr = 25OC
CIN=1uF (ceramics), CL=1uF (ceramics)
5.2
5.0
Input Voltage VIN (V)
Input Voltage VIN (V)
4.2
5.05
5.00
IOUT =
0mA
= 30mA
= 100mA
4.95
4.90
4.85
4.5
5.0
5.5
5.5
6.0
Input Voltage VIN (V)
Input Voltage VIN (V)
(3) Dropout Voltage vs. Output Current
XC6401(2.85V)
XC6401(0.8V)
CIN=1uF (ceramics), CL=1uF (ceramics)
1.0
Dropout Voltage Vdif (V)
Dropout Voltage Vdif (V)
Topr = 85OC
= 25OC
= - 40OC
0.8
0.6
0.4
0.2
0.0
CIN=1uF (ceramics), CL=1uF (ceramics)
0.5
0.4
Topr = 85OC
= 25OC
= - 40OC
0.3
0.2
0.1
0.0
0
50
100
150
Output Current IOUT (mA)
200
0
50
100
150
200
Output Current IOUT (mA)
11/24
XC6401 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(3) Dropout Voltage vs. Output Current (Continued)
XC6401(3.0V)
CIN=1uF (ceramics), CL=1uF (ceramics)
0.5
Topr = 85OC
= 25OC
= - 40OC
0.4
CIN=1uF (ceramics), CL=1uF (ceramics)
0.5
Dropout Voltage Vdif (V)
Dropout Voltage Vdif (V)
XC6401(5.0V)
0.3
0.2
0.1
0.4
Topr = 85OC
= 25OC
= - 40OC
0.3
0.2
0.1
0.0
0.0
0
50
100
150
0
200
50
100
150
200
Output Current IOUT (mA)
Output Current IOUT (mA)
(4) Supply Current vs. Input Voltage
XC6401(0.8V)
XC6401(2.85V)
100
100
Supply Current ISS (uA)
Supply Current ISS (uA)
Topr = 85OC
= 25OC
= - 40OC
80
60
40
20
Topr = 85OC
= 25OC
= - 40OC
80
60
40
20
0
0
0
1
2
3
4
5
0
6
1
Input Voltage VIN (V)
XC6401(3.0V)
4
5
6
5
6
100
Supply Current ISS (uA)
Topr = 85OC
= 25OC
= - 40OC
80
Supply Current ISS (uA)
3
XC6401(5.0V)
100
60
40
20
80
60
Topr = 85OC
= 25OC
= - 40OC
40
20
0
0
0
12/24
2
Intput Voltage VIN (V)
1
2
3
4
Input Voltage VIN (V)
5
6
0
1
2
3
4
Input Voltage VIN (V)
XC6401
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(5) Output Voltage vs. Ambient Temperature
XC6401(0.8V)
0.82
0.80
IOUT =
0mA
= 10mA
= 30mA
= 100mA
0.78
VIN = 4.0V
CIN=1uF (ceramics), CL=1uF (ceramics)
2.95
Output Voltage VOUT (V)
0.84
Output Voltage VOUT (V)
XC6401(2.85V)
VIN = 1.8V
CIN=1uF (ceramics), CL=1uF (ceramics)
0.76
2.90
2.85
IOUT =
0mA
= 10mA
= 30mA
= 100mA
2.80
2.75
-50
-25
0
25
50
75
100
-50
Ambient Temperature Topr (OC)
-25
XC6401(3.0V)
IOUT =
0mA
= 10mA
= 30mA
= 100mA
2.95
2.90
-50
-25
0
25
50
50
75
100
75
VIN = 5.0V
CIN=1uF (ceramics), CL=1uF (ceramics)
5.20
Output Voltage VOUT (V)
Output Voltage VOUT (V)
3.05
3.00
25
XC6401(5.0V)
VIN = 4.0V
CIN=1uF (ceramics), CL=1uF (ceramics)
3.10
0
Ambient Temperature Topr (OC)
5.10
5.00
IOUT =
0mA
= 10mA
= 30mA
= 100mA
4.90
4.80
100
-50
Ambient Temperature Topr (OC)
-25
0
25
50
75
100
Ambient Temperature Topr (OC)
(6) Supply Current vs. Ambient Temperature
XC6401(2.85V)
XC6401(0.8V)
VIN = 3.85V
30
28
28
Supply Current IDD ( μA)
Supply Current IDD ( μA)
VIN = 1.8V
30
26
24
22
20
26
24
22
20
-50
-25
0
25
50
75
Ambient Temperature Topr (OC)
100
-50
-25
0
25
50
75
Ambient Temperature Topr (OC)
100
13/24
XC6401 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(6) Supply Current vs. Ambient Temperature (Continued)
XC6401(3.0V)
XC6401(5.0V)
VIN = 6.0V
30
30
28
28
Supply Current IDD ( μA)
Supply Current IDD ( μA)
VIN = 4.0V
26
24
22
20
24
22
20
-50
-25
0
25
50
75
Ambient Temperature Topr (OC)
14/24
26
100
-50
-25
0
25
50
75
Ambient Temperature Topr (OC)
100
XC6401
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(7) Input Transient Response
XC6401(0.8V)
Input Voltage
3
0.95
2
0.85
1
0.80
0
Output Voltage
0.75
-1
0.70
0.90
XC6401(2.85V)
4
3.05
3
3.00
2
0
Output Voltage
0.75
-1
0.70
-2
2.95
Input Voltage
2.90
2
Output Voltage
2.80
6
3.05
5
3.00
4
2
1
2.75
0
Time (40usec/div)
1
0
XC6401(2.85V)
Output Voltage
2.80
4
Time (200usec/div)
3
2.85
Input Voltage
2.85
Output Voltage VOUT (V)
2.95
5
2.75
Input Voltage VIN (V)
Output Voltage VOUT (V)
3.00
6
3
XC6401(2.85V)
tr=tf=5use
CL=1uF (ceramics), IOUT=30mA
tr=tf=5use
CL=1uF (ceramics), IOUT=100uA
2.90
Time (40usec/div)
3.05
-2
Time (40usec/div)
1
0.80
-1
Input Voltage VIN (V)
0.85
0
0.70
Output Voltage VOUT (V)
Input Voltage
1
0.75
Input Voltage VIN (V)
Output Voltage VOUT (V)
0.90
2
Output Voltage
-2
0.95
Input Voltage
0.80
XC6401(0.8V)
1.00
4
3
0.85
Time (200usec/div)
tr=tf=5use
CL=1uF (ceramics), IOUT=100mA
tr=tf=5use
CL=1uF (ceramics), IOUT=30mA
2.95
tr=tf=5use
CL=1uF (ceramics), IOUT=100mA
5
Input Voltage
2.90
4
3
2.85
2.80
6
2
Output Voltage
2.75
Input Voltage VIN (V)
0.90
1.00
Output Voltage VOUT (V)
Output Voltage VOUT (V)
0.95
4
Input Voltage VIN (V)
1.00
tr=tf=5use
CL=1uF (ceramics), IOUT=100uA
Input Voltage VIN (V)
XC6401(0.8V)
1
0
Time (40usec/div)
15/24
XC6401 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(7) Input Transient Response (Continued)
XC6401(3.0V)
3.15
4
3.05
3
3.00
2
Output Voltage
2.95
2.90
3.10
4
3.05
3
3.00
2
Output Voltage
1
2.95
0
2.90
5.20
5
5.15
4
3.05
3
3.00
2
Output Voltage
2.95
2.90
5.10
4.95
0
4.90
Input Voltage
5.05
16/24
tr=tf=5use
CL=1uF (ceramics), IOUT=100mA
8
7
5.15
7
6
3
2
Time (40usec/div)
2
5.20
4
4.90
3
8
Output Voltage
4.95
4
XC6401(5.0V)
5
5.00
5
Time (200usec/div)
Output Voltage VOUT (V)
5.10
6
Output Voltage
1
Input Voltage VIN (V)
Output Voltage VOUT (V)
5.15
Input Voltage
5.00
XC6401(5.0V)
tr=tf=5use
CL=1uF (ceramics), IOUT=30mA
8
7
5.05
Time (40usec/div)
5.20
tr=tf=5use
CL=1uF (ceramics), IOUT=100uA
Input Voltage VIN (V)
Input Voltage
6
Output Voltage VOUT (V)
3.10
0
XC6401(5.0V)
Input Voltage VIN (V)
Output Voltage VOUT (V)
3.15
1
Time (40usec/div)
XC6401(3.0V)
3.20
5
Input Voltage
Time (200usec/div)
tr=tf=5use
CL=1uF (ceramics), IOUT=100mA
6
Input Voltage VIN (V)
Input Voltage
5
tr=tf=5use
CL=1uF (ceramics), IOUT=30mA
5.10
Input Voltage
5.05
6
5
5.00
4
Output Voltage
4.95
3
4.90
2
Time (40usec/div)
Input Voltage VIN (V)
3.10
3.20
Input Voltage VIN (V)
Output Voltage VOUT (V)
3.15
6
Input Voltage VIN (V)
3.20
XC6401(3.0V)
tr=tf=5use
CL=1uF (ceramics), IOUT=100uA
XC6401
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(8) Load Transient Response
0.80
250
0.90
200
0.80
Output Voltage
0.70
150
0.60
100
Output Current
50m A
50
VIN=1.8V, tr=tf=5use
CIN=CL=1uF (ceramics)
200
Output Voltage
0.70
0.60
150
100m A
Output Current
50
10m A
0
0.40
0
Time (40usec/div)
Time (40usec/div)
XC6401(2.85V)
250
2.95
200
2.85
Output Voltage
2.75
150
2.65
100
Output Current
2.55
50
Output Voltage VOUT (V)
Output Voltage VOUT (V)
2.85
XC6401(2.85V)
Output Current IOUT (mA)
VIN=4.0V, tr=tf=5use
CIN=CL=1uF (ceramics)
VIN=4.0V, tr=tf=5use
CIN=CL=1uF (ceramics)
200
Output Voltage
2.75
100
Output Current
2.55
50
10m A
2.45
0
2.45
0
Time (40usec/div)
Time (40usec/div)
XC6401(3.0V)
250
3.10
200
3.00
Output Voltage
2.90
150
2.80
100
2.70
Output Current
50
10m A
Output Voltage VOUT (V)
Output Voltage VOUT (V)
3.00
XC6401(3.0V)
Output Current IOUT (mA)
VIN=4.0V, tr=tf=5use
CIN=CL=1uF (ceramics)
50m A
150
100m A
2.65
10m A
3.10
250
Output Current IOUT (mA)
0.40
50m A
100
0.50
10m A
2.95
250
VIN=4.0V, tr=tf=5use
CIN=CL=1uF (ceramics)
250
200
Output Voltage
2.90
150
100m A
2.80
100
Output Current
2.70
50
Output Current IOUT (mA)
0.50
Output Voltage VOUT (V)
Output Voltage VOUT (V)
0.90
XC6401(0.8V)
Output Current IOUT (mA)
VIN=1.8V, tr=tf=5use
CIN=CL=1uF (ceramics)
Output Current IOUT (mA)
XC6401(0.8V)
10m A
2.60
0
Time (40usec/div)
2.60
0
Time (40usec/div)
17/24
XC6401 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(8) Load Transient Response (Continued)
XC6401(5.0V)
5.00
250
5.10
200
5.00
Output Voltage
4.90
150
4.80
100
Output Current
4.70
50m A
50
Output Voltage VOUT (V)
Output Voltage VOUT (V)
5.10
Output Current IOUT (mA)
VIN=6.0V, tr=tf=5use
CIN=CL=1uF (ceramics)
250
200
Output Voltage
4.90
4.80
150
100m A
100
Output Current
4.70
50
10m A
10m A
4.60
0
Time (40usec/div)
18/24
VIN=6.0V, tr=tf=5use
CIN=CL=1uF (ceramics)
4.60
0
Time (40usec/div)
Output Current IOUT (mA)
XC6401(5.0V)
XC6401
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(9) Ripple Rejection Rate
XC6401(0.8V)
80
Ripple Rejection Rate RR (dB)
80
Ripple Rejection Rate RR (dB)
XC6401(2.85V)
VIN=1.8V DC+0.5Vp-pAC
IOUT=30mA, CL=1uF (ceramics)
60
40
20
0
0.01
0.1
1
10
60
40
20
0
0.01
100
VIN=3.85V DC+0.5Vp-pAC
IOUT=30mA, CL=1uF (ceramics)
Ripple Frequency f (kHz)
0.1
XC6401(3.0V)
Ripple Rejection Rate RR (dB)
Ripple Rejection Rate RR (dB)
80
60
40
20
0
0.01
0.1
1
10
100
XC6401(5.0V)
VIN=4.0V DC+0.5Vp-pAC
IOUT=30mA, CL=1uF (ceramics)
80
1
Ripple Frequency f (kHz)
10
60
40
20
0
0.01
100
Ripple Frequency f (kHz)
VIN=5.75V DC+0.5Vp-pAC
IOUT=30mA, CL=1uF (ceramics)
0.1
1
10
100
Ripple Frequency f (kHz)
(10) Cross Talk
XC6401 (VR1:3.0V, VR2:2.85V)
VIN=4.0V, CIN= CL=1uF (ceramics)
3.1
500
3.0
400
2.9
300
VR2 Output Voltage (2.85V)
2.8
100m A
200
VR1 Output Current
2.7
100
Output Current 1 IOUT (mA)
Output Voltage VOUT (V)
VR1 Output Voltage (3.0V)
10m A
2.6
0
Time (40usec/div)
19/24
XC6401 Series
■PACKAGING INFORMATION
●SOT-26W
●USP-6B
20/24
XC6401
Series
■PACKAGING INFORMATION (Continued)
●USP-6C
21/24
XC6401 Series
■PACKAGING INFORMATION (Continued)
●USP-6B Recommended Pattern Layout
●USP-6B Recommended Metal Mask Design
●USP-6C Recommended Pattern Layout
●USP-6C Recommended Metal Mask Design
22/24
XC6401
Series
■MARKING RULE
①Represents product series
●SOT-26W
6
①
5
②
MARK
PRODUCT SERIES
1
XC6401xxxxMx
4
③ ④
②③Represents internally set sequential number
ex.)
1
2
3
SOT-26W
②
MARK
③
INTERNALLY SET SEQUENTIAL
NUMBER
PRODUCT SERIES
(TOP VIEW)
C
C
0
1
2
0
1
8
C2
C0
01
18
XC6401EED5
XC6401EED6
XC6401FF36
XC6401FF37
④Represents production lot number
0 to 9, A to Z reverse character 0 to 9, A to A repeated (G, I, J, O, Q, W excepted).
①Represents product series
●USP-6B,
USP-6C
MARK
PRODUCT SERIES
1
XC6401xxxxxx
②Represents type of VR1 regulator
USP-6B
(TOP VIEW)
3
① ② ③
2
④ ⑤ ⑥
1
USP-6C
(TOP VIEW)
6
5
4
MARK
OPTIONAL FUNCTIONS
PRODUCT SERIES
B
E
F
Z
H
K
L
M
N
EN1: High Active with no pull-down resistor
EN1: High Active with pull-down resistor, High speed
EN1: High Active with no pull-down resistor, High speed
EN1: Low Active with pull-up resistor, High speed
EN1: Low Active with no pull-up resistor, High speed
EN1: High Active with pull-down resistor, Low power consumption
EN1: High Active with no pull-down resistor, Low power consumption
EN1: Low Active with pull-up resistor, Low power consumption
EN1: Low Active with no pull-up resistor, Low power consumption
XC6401Bxxxxx
XC6401Exxxxx
XC6401Fxxxxx
XC6401Gxxxxx
XC6401Hxxxxx
XC6401Kxxxxx
XC6401Lxxxxx
XC6401Mxxxxx
XC6401Nxxxxx
③Represents type of VR2 regulator
MARK
B
E
F
Z
H
K
L
M
N
OPTIONAL FUNCTIONS
PRODUCT SERIES
EN1: High Active with no pull-down resistor
XC6401xBxxxx
EN1: High Active with pull-down resistor, High speed
XC6401xExxxx
EN1: High Active with no pull-down resistor, High speed
XC6401xFxxxx
EN1: Low Active with pull-up resistor, High speed
XC6401xGxxxx
EN1: Low Active with no pull-up resistor, High speed
XC6401xHxxxx
EN1: High Active with pull-down resistor, Low power consumption
XC6401xKxxxx
EN1: High Active with no pull-down resistor, Low power consumption XC6401xLxxxx
EN1: Low Active with pull-up resistor, Low power consumption
XC6401xMxxxx
EN1: Low Active with no pull-up resistor, Low power consumption
XC6401xNxxxx
④⑤Represents VR output voltage (serial number ex.)
MARK
④
0
0
⑤
1
2
OUTPUT VOLTAGE
VR1 (V)
VR2 (V)
2.85
2.10
2.85
2.85
PRODUCT SERIES
XC6401xx01xx
XC6401xx02xx
⑥Represents production lot number
0 to 9, A to Z repeated (G, I, J, O, Q, W excepted)
Note: No character inversion used
23/24
XC6401 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 catalog 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 catalog.
3. Please ensure suitable shipping controls (including fail-safe designs and aging
protection) are in force for equipment employing products listed in this catalog.
4. The products in this catalog 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 catalog 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 catalog may be copied or reproduced without the
prior permission of Torex Semiconductor Ltd.
24/24