XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! Low Power Consumption
! Maximum Output Current
! Dropout Voltage
: 35µA (TYP.)
! Operating Voltage Range
! VR Output Voltage Range
: 1.5V ~ 6.0V
! APPLICATIONS
"
"
"
"
"
"
: more than 700mA (800mA limit)
: 50mV @ 100mA
: 100mV @ 200mA
!
October 20, 2003 Ver. 2
: 0.8V ~ 5.0V
VD Output Voltage Range
: 0.8V ~ 5.0V
Low ESR capacitor compatible
! GENERAL DESCRIPTION
CD-ROM, CD-R / RW drive
DVD drive
HDD drive
Cameras, Video recorders
Portable AV equipment
Battery powered equipment
! FEATURES
Maximum Output Current
The XC6402 series are precise, low noise, high current, positive voltage
low dropout regulators with built-in voltage detector. They are fabricated
using Torex’s CMOS process. The series features a voltage reference,
an error amplifier, a current limiter, a voltage detector and a phase
compensation circuit plus a driver transistor.
The output voltage of the LDO and detect voltage of the detector is
selectable in 50mV increments within the range of 0.8V to 5.0V.
With a low ON resistance driver transistor built-in, batteries can be used
until input-output voltage differential is minimal and can accordingly be
used for a longer time.
The series is also compatible with low ESR ceramic capacitors which
give added output stability.
The series provides options to the user to select from a variety of circuit
features, such as detector monitoring, detector output logic, EN pin input
logic, and internal pull-up / down resistance (semi-custom).
The IC's internal regulator circuit can be placed in stand-by mode via the
EN function (XC6402C series). In the stand-by mode, power
consumption is greatly reduced.
The XC6402F series offers the option of a delay on the detector output:
the delay time can be controlled by the use of an external capacitor.
: more than 700mA (800mA limit)
(1.6V<VROUT(T)<5.0V)
Dropout Voltage
: 50mV @IOUT=100mA
Maximum Operating Voltage
: 1.5V ~ 6.0V
VR Output Voltage Range
: 0.8V ~ 5.0V (50mV step)
VD Output Voltage Range
: 0.8V ~ 5.0V (50mV step)
When monitoring VIN : more than 1.5V
Highly Accurate
: ± 2%
Low Power Consumption
: 35µA (TYP.)
High Ripple Rejection
: 60dB (@1kHz)
Operational Ambient Temperature:
: - 40 ~ 85OC
Low ESR Capacitor Compatible
: Ceramic capacitor
Ultra Small Packages
: SOT-25 (SOT-23-5)
: SOT-89-5
: USP-6B
* VD: Voltage Detector
! TYPICAL APPLICATIONS CIRCUITS
! TYPICAL PERFORMANCE CHARACTERISTICS
# XC6402C Series
# Dropout Voltage vs. VR Output Current
XC6402 Series (VR : 3.0V)
CIN
1uF
1
VIN
5
2
VSS
3
VROUT
VDOUT 4
EN
Rpull-up
220K
0.9
Dropout Voltage Vdif (V)
# XC6402F Series
1
VIN
2
VSS
3
VROUT
VDOUT 4
EN
5
- 40OC
- 25OC
- 85OC
0.8
CL
1uF
CIN
1uF
CIN=1uF(ceramic), CL=1.0uF(ceramic)
1.0
0.7
0.6
0.5
0.4
0.3
0.2
Rpull-up
220K
0.1
0.0
0
100
200
300
400
500
600
700
VR Output Current IROUT (mA)
CL
1uF
Semiconductor Ltd.
Data Sheet
1
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! PIN CONFIGURATION
VROUT
EN / Cd
VDOUT
5
4
1
VIN
2
VSS
VDOUT
4
5
3
1
EN / Cd
2
VIN
VSS
1
6 VDOUT
NC
2
VIN
3
5 VROUT
4 VSS
3
VROUT
SOT-89-5 (TOP VIEW)
SOT-25 (TOP VIEW)
EN / Cd
USP-6B (TOP VIEW)
! PIN ASSIGNMENT
PIN NUMBER
PIN NAME
FUNCTION
3
VIN
Power Input
4
VSS
Ground
3
5
VROUT
VR Output
4
4
6
VDOUT
VD Output
3
5
1
EN
VR ON/OFF Control (C Series)
3
5
1
Cd
Delay Capacitor Connection ( F Series)
-
-
2
NC
No Connection
SOT-25
SOT-89-5
USP-6B
1
1
2
2
5
! SELECTION GUIDE
1. EN Input Logic, Internal Pull-up / down as option
SERIES
CE INPUT LOGIC
XC6402 * A ~ D
Active High with pull-down resistance
XC6402 * E ~ K
Active High with no pull-down resistance
XC6402 * L ~ P
Active Low with pull-up resistance
XC6402 * R ~ U
Active Low with no pull-up resistance
* : C series
2. VD Sense as option
SERIES
VD SENSE PIN
XC6402 * A, B, E, F, L, M, R, S, V, X
VIN
XC6402 * C, D, H, K, N, P, T, U, Y, Z
VROUT
* : C and F series
3. VD Output Logic as option
SERIES
VD OUTPUT LOGIC
XC6402 * A, C, E, H, L, N, R, T, V, Y
Detect L
XC6402 * B, D, F, K, M, P, S, U, X, Z
Detect H
* : C and F series
Semiconductor Ltd.
Data Sheet
2
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! ORDERING INFORMATION
XC6402 123456
PIN NUMBER
FUNCTION
PIN NUMBER
Denotes Optional Functions :
FUNCTION
Denotes Packaging Types:
C : EN Function
1
M : SOT-25 (SOT-23-5)
5
F : Cd Pin
P : SOT-89-5
D : USP-6B
Denotes Types :
2
Denotes Taping Direction:
As in the chart below.
Internally set sequential number relating to output
voltage and detect voltage.
3
4
6
R: Embossed tape, Standard feed
VR Setting Output Voltage Range : 0.8V ~ 5.0V
L : Embossed tape, Reverse feed
Detect Voltage Setting Range : 0.8V ~ 5.0V
50mV increments are available
PIN NUMBER : 2 Types
2
EN FUNCTION
EN LOGIC
PULL UP/DOWN
RESISTANCE
VD SENSE PIN
VD OUTPUT LOGIC
A
Functional
Active High
Pull-down Function
VIN
Detect L
Detect H
B
Functional
Active High
Pull-down Function
VIN
C
Functional
Active High
Pull-down Function
VROUT
Detect L
D
Functional
Active High
Pull-down Function
VROUT
Detect H
E
Functional
Active High
Nonfunctional
VIN
Detect L
Detect H
F
Functional
Active High
Nonfunctional
VIN
H
Functional
Active High
Nonfunctional
VROUT
Detect L
K
Functional
Active High
Nonfunctional
VROUT
Detect H
L
Functional
Active Low
Pull-up Function
VIN
Detect L
M
Functional
Active Low
Pull-up Function
VIN
Detect H
N
Functional
Active Low
Pull-up Function
VROUT
Detect L
P
Functional
Active Low
Pull-up Function
VROUT
Detect H
R
Functional
Active Low
Nonfunctional
VIN
Detect L
S
Functional
Active Low
Nonfunctional
VIN
Detect H
T
Functional
Active Low
Nonfunctional
VROUT
Detect L
U
Functional
Active Low
Nonfunctional
VROUT
Detect H
V
Nonfunctional
-
-
VIN
Detect L
X
Nonfunctional
-
-
VIN
Detect H
Y
Nonfunctional
-
-
VROUT
Detect L
Z
Nonfunctional
-
-
VROUT
Detect H
PIN NUMBER 1
C Series
F Series
Semiconductor Ltd.
Data Sheet
3
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! PACKAGING INFORMATION
# SOT-25 (SOT-23-5)
# SOT-89-5
# USP-6B
2.0 + 0.15
(0.45) 0.5+0.1
2
3
5
4
O
45
A'
45 O
6
(0.27)
1
(0.27)
( 0.45)
1
AAA
AAA
1.8+0.15
A
(0.27)
(0.05)
O
(0.45) (0.45)
O
+0.01
(0.05) -0.005
0.005+0.002
45
(0.65)+0.15
-0.05
(0.125)
45 O
1
6
1
1
1.0+0.1
0.25+0.1
1
.
00.1+0.03
5
1
1.6+0.15
4
2
0.5+0.1 0.5+0.1
3
1
0.2+0.05
5-0.2+0.05
0.7+0.03
0.25+0.1
Semiconductor Ltd.
Data Sheet
4
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! BLOCK DIAGRAM
Optional:
Active HIGH with Pull-down R
Active HIGH with no Pull-down R
Active LOW with Pull-up R
Active LOW with no Pull-up R
VIN
EN
Optional:
ON / OFF
Control
VIN SENSE
VROUT SENSE
Current
Limit
VR Circuit
VROUT
Error Amp.
R1
CFB
R2
Voltage
Reference
VDOUT
R3
R4
Comp. VD
Optional:
VSS
Detect H
Detect L
XC6402C Series
VIN
Optional:
Rdelay
VIN SENSE
VROUT SENSE
Current
Limit
Cd
Optional:
Error Amp.
CFB
Detect H
Detect L
Voltage
Reference
VROUT
R1
R2
VDOUT
R3
R4
Comp. VD
VSS
XC6402F Series
Semiconductor Ltd.
Data Sheet
5
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATINGS
Input Voltage
VR Output Current
VR Output Voltage
VD Output Current
VD Output Voltage
VEN / Cd Pin Voltage
VIN
IROUT
VROUT
IDOUT
VDOUT
VEN / Cd
6.5
800
VSS -0.3 ~ VIN +0.3
50
VSS -0.3 ~ 6.5
VSS -0.3 ~ VIN + 0.3
250
500
100
- 40 ~ + 85
- 55 ~ + 125
SOT-25
SOT-89-5
USP-6B
Operating Temperature Range
Storage Temperature Range
Continuous
Power Dissipation
Pd
Topr
Tstg
Ta=25OC
UNITS
V
mA
V
mA
V
V
mW
O
C
C
O
! ELECTRICAL CHARACTERISTICS
Ta=25OC
XC6402C Series
PARAMETER
SYMBOL
CONDITIONS
VR Output Voltage (note 2, 3)
VROUT(E)
VIN=VROUT(T)+1.0V, IROUT=30mA
VR Maximum Output Current
[VROUT(E)>1.6V]
IROUTMAX
VIN=VROUT(T)+1.0V
VEN=ON(VIN or VSS)
700
-
VR Maximum Output Current
[VROUT(E)<1.6V]
IROUTMAX
VIN=VROUT(T)+1.0V
VEN=ON(VIN or VSS)
500
VR Load Regulation
∆VROUT
1mA<IROUT<100mA
-
x 0.98
(-30mV)
TYP
UNITS
CIRCUIT
V
1
-
mA
1
-
-
mA
1
60
mV
1
mV
1
VROUT(T)
MAX
x 1.02
(+30mV)
Vdif1
IROUT=30mA
15
E-1 (page 8 ~9)
Vdif2
IROUT=100mA
E-2 (page 8 ~9)
Supply Current
(CA/CB/CC/CD type)
IDD
VEN=VIN=VROUT(T)+1.0V,
IROUT=0mA
E-3 (page 8 ~9)
µA
2
Supply Current
(CL/CM/CN/CP type)
IDD
VEN=VROUT(T)+1.0V, VIN=VSS,
IROUT=0mA
E-3 (page 8 ~9)
µA
2
Supply Current
(CE/CF/CH/CK type)
IDD
VEN=VIN=VROUT(T)+1.0V,
IROUT=0mA
-
35
70
µA
2
Supply Current
(CR/CS/CT/CU type)
IDD
VEN=VROUT(T)+1.0V, VIN=VSS,
IROUT=0mA
-
35
70
µA
2
-
0.01
0.20
%/V
1
1.5
-
6.0
V
-
-
±100
-
ppm / OC
1
-
60
-
dB
3
VR Dropout Voltage (note 4)
VOLTAGE REGULATOR (VROUT=1.8V)
MIN
VR Line Regulation
∆VROUT
VROUT(T)+1.0V<VIN<6.0V
∆VIN ⋅ VROUT
VEN=ON(VIN or VSS), IROUT=30mA
Input Voltage
VIN
VR Output Voltage
Temperature Characteristics
∆VROUT
IROUT=30mA
∆Topr ⋅ VROUT
-40OC<Topr<85OC
VIN=[VROUT(T)+1.0]VDC+0.5Vp-pAC
VR Ripple Rejection Rate
PSRR
When VROUT(T) > 4.75V
! VIN=5.75V+0.5Vp-pAC
IROUT=30mA, f=1kHz
VR Current Limiter
[VROUT(E)>1.6V]
IRlim
VIN=VROUT(T)+1.0V
VEN=ON(VIN or VSS)
700
800
-
mA
1
VR Current Limiter
[VROUT(E)<1.6V]
IRlim
VIN=VROUT(T)+1.0V
VEN=ON(VIN or VSS)
-
800
-
mA
1
Short-Circuit Current
IRshort
VIN=VROUT(T)+1.0V
VEN=ON(VIN or VSS)
-
30
-
mA
1
Semiconductor Ltd.
Data Sheet
6
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! ELECTRICAL CHARACTERISTICS (Continued)
Ta=25OC
XC6402C Series
PARAMETER
SYMBOL
VD Detect Voltage (note 7, 8)
VDF (E)
VD Hysteresis Range (note 7)
VHYS
CONDITIONS
MIN
x 0.98
TYP
VDF (T)
MAX
UNITS
x 1.02
(-30mV)
VDF (E)
VDF (E)
(+30mV)
VDF (E)
x 0.02
x 0.05
x 0.08
VIN = 1.5V
-
5.0
14.0
VIN = 2.0V
-
5.5
14.5
VIN = 3.0V
-
6.0
15.0
VIN = 4.0V
-
6.5
15.5
VIN = 5.0V
-
7.0
16.0
VIN = 6.0V
-
7.5
17.0
VIN = 1.5V
1.5
3.0
-
VIN = 2.0V
1.8
3.5
-
VIN = 3.0V
1.8
3.7
-
VIN = 4.0V
1.9
3.8
-
VIN = 5.0V
1.9
3.9
-
VIN = 6.0V
2.0
4.0
-
-40OC<Topr<85OC
-
±100
-
V
CIRCUIT
4
V
4
µA
2
mA
5
ppm / OC
4
VOLTAGE DETECTOR
VEN = OFF (VIN or VSS)
VD Supply Current
VDOUT = 0.5V
VD Output Current
(note 9)
SWITCH
IDDVD
IDOUT
∆VDF /
VD Detect Voltage
Temperature Characteristics
∆Topr ⋅ VDF
EN "High" Level Voltage
VEN H
1.60
-
VIN
V
1
EN "Low" Level Voltage
VEN L
-
-
0.25
V
1
EN "High" Level Current
(CA/CB/CC/CD type)
IEN H
-0.10
-
E-4
(page 8~9)
µA
1
EN "High" Level Current
(CE/CF/CH/CK/CL/CM/CN/
CP/CR/CS/CT/CU type)
IEN H
-0.10
-
0.10
µA
1
EN "High" Level Current
(CL/CM/CN/CP type)
IEN L
VIN=VROUT(T)+1.0V, VEN=VSS
E-5
(page 8~9)
-
0.10
µA
1
EN "High" Level Current
(CA/CB/CC/CD/CE/CF/CH/
CK/CR/CS/CT/CU type)
IEN L
VIN=VROUT(T)+1.0V, VEN=VSS
-0.10
-
0.10
µA
1
VEN=VIN=VROUT(T)+1.0V
(NOTE 1) Unless otherwise stated, VIN=VROUT(T)+1.0V
(NOTE 2) VROUT(T)=Specified VR Output Voltage
(NOTE 3) VROUT(E)=Actual VR Output Voltage.
(i.e. the VR output voltage when "VROUT(T)+1.0V" is provided at the VIN pin while maintaining a certain IROUT value).
Vdif={VIN1(NOTE6)-VROUT1(NOTE5)}
A voltage equal to 98% of the VR Output Voltage whenever a stabilized VROUT1=IROUT{VROUT(T)+1.0V} is input.
VIN1=The Input Voltage when VOUT1, which appears as Input Voltage is gradually decreased.
VDF (T) : Specified Detect Voltage value
VDF (E) : Actual Detect Voltage value.
VD Output Current value of Detect 'L' type equal to current value during detection
and that of Detect 'H' type equal to current value before detection.
! MIN : VROUT(T) -30mV, VDF(T) -30mV,
(NOTE10) VROUT(T)<1.45V, VDF(T)<1.45V
! MAX : VROUT(T) +30mV, VDF(T) +30mV
(NOTE11) EN conditions:
XC6402CA / CB / CC / CD / CE / CF / CH / CK type : ON=VIN, OFF=VSS
XC6402CL / CM / CN / CP / CR / CS / CT / CU type : ON=VSS, OFF=VIN
(NOTE12) VD detect voltage : For VIN Sense version, XC6402CA / CB / CE /CF / CL / CM / CR / CS, only VDF(T)>1.5V type are available.
(NOTE 4)
(NOTE 5)
(NOTE 6)
(NOTE 7)
(NOTE 8)
(NOTE 9)
Semiconductor Ltd.
Data Sheet
7
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! XC6402C SERIES DROPOUT VOLTAGE, SUPPLY CURRENT, EN'H/L' LEVEL CURRENT
SETTING
VR OUTPUT VOLTAGE
E-1
E-2
E-3
E-4
E-5
OUTPUT
VD DETECT VOLTAGE
DROPOUT VOLTAGE 1
DROPOUT VOLTAGE 2
SUPPLY CURRENT
VOLTAGE
(V)
VOUT
(mV)
Vdif1
(mV)
Vdif2
(µA)
IDD
EN'H'LEVEL
CURRENT (µA)
EN'H'LEVEL
CURRENT (µA)
(V)
VROUT(T)
MIN.
MAX.
0.80
0.770
0.830
0.85
0.820
0.880
0.90
0.870
0.930
0.95
0.920
0.980
1.00
0.970
1.030
1.05
1.020
1.080
1.10
1.070
1.130
1.15
1.120
1.180
1.20
1.170
1.230
1.25
1.220
1.280
1.30
1.270
1.330
1.35
1.320
1.380
1.40
1.370
1.430
1.45
1.420
1.480
1.50
1.470
1.530
1.55
1.519
1.581
1.60
1.568
1.632
1.65
1.617
1.683
1.70
1.666
1.734
1.75
1.715
1.785
1.80
1.764
1.836
1.85
1.813
1.887
1.90
1.862
1.938
1.95
1.911
1.989
2.00
1.960
2.040
2.05
2.009
2.091
2.10
2.058
2.142
2.15
2.107
2.193
2.20
2.156
2.244
2.25
2.205
2.295
2.30
2.254
2.346
2.35
2.303
2.397
2.40
2.352
2.448
2.45
2.401
2.499
2.50
2.450
2.550
2.55
2.499
2.601
2.60
2.548
2.652
2.65
2.597
2.703
2.70
2.646
2.754
2.75
2.695
2.805
2.80
2.744
2.856
2.85
2.793
2.907
2.90
2.842
2.958
2.95
2.891
3.009
TYP.
MAX.
TYP.
MAX.
700
100
600
TYP.
MAX.
38.0
80.0
5.0
-5.0
38.5
81.5
6.5
-6.5
700
500
30
IENL
MAX.
800
250
50
IENH
TYP.
600
150
400
500
300
400
200
100
300
100
250
27.0
41.0
90.0
135.0
39.0
83.0
8.0
-8.0
25.0
37.0
80.0
120.0
39.5
84.5
9.5
-9.5
18.0
28.0
60.0
90.0
40.0
86.0
11.0
-11.0
Semiconductor Ltd.
Data Sheet
8
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! XC6402C SERIES DROPOUT VOLTAGE, SUPPLY CURRENT, EN'H/L' LEVEL CURRENT (Continued)
SETTING
VR OUTPUT VOLTAGE
E-1
E-2
E-3
E-4
E-5
OUTPUT
VD DETECT VOLTAGE
DROPOUT VOLTAGE 1
DROPOUT VOLTAGE 2
SUPPLY CURRENT
VOLTAGE
(V)
VOUT
(mV)
Vdif1
(mV)
Vdif2
(µA)
IDD
EN'H'LEVEL
CURRENT (µA)
EN'H'LEVEL
CURRENT (µA)
(V)
VROUT(T)
MIN.
MAX.
3.00
2.940
3.060
3.05
2.989
3.111
3.10
3.038
3.162
3.15
3.087
3.213
3.20
3.136
3.264
3.25
3.185
3.315
3.30
3.234
3.366
3.35
3.283
3.417
3.40
3.332
3.468
3.45
3.381
3.159
3.50
3.430
3.570
3.55
3.479
3.621
3.60
3.528
3.672
3.65
3.577
3.723
3.70
3.626
3.774
3.75
3.675
3.825
3.80
3.724
3.876
3.85
3.773
3.927
3.90
3.882
3.978
3.95
3.871
4.029
4.00
3.920
4.080
4.05
3.969
4.131
4.10
4.018
4.182
4.15
4.067
4.233
4.20
4.116
4.284
4.25
4.165
4.335
4.30
4.214
4.386
4.35
4.263
4.437
4.40
4.312
4.488
4.45
4.361
4.539
4.50
4.410
4.590
4.55
4.459
4.641
4.60
4.508
4.692
4.65
4.557
4.743
4.70
4.606
4.794
4.75
4.655
4.845
4.80
4.704
4.896
4.85
4.753
4.947
4.90
4.802
4.998
4.95
4.851
5.049
5.00
4.900
5.100
TYP.
15.0
MAX.
23.0
TYP.
MAX.
50.0
IENH
IENL
TYP.
MAX.
TYP.
MAX.
40.5
87.5
12.5
-12.5
41.0
89.0
14.0
-14.0
41.5
90.5
15.5
-15.5
42.0
92.0
17.0
-17.0
75.0
Semiconductor Ltd.
Data Sheet
9
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! ELECTRICAL CHARACTERISTICS
Ta=25OC
XC6402F Series
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
CIRCUIT
VR Output Voltage (note 2, 3)
VROUT(E)
VIN=VROUT(T)+1.0V, IROUT=30mA
x 0.98
(-30mV)
VROUT(T)
x 1.02
(+30mV)
V
1
VR Maximum Output Current
[VROUT(E)>1.6V]
IROUTMAX
VIN=VROUT(T)+1.0V
700
-
-
mA
1
VR Maximum Output Current
[VROUT(E)<1.6V]
IROUTMAX
VIN=VROUT(T)+1.0V
500
-
-
mA
1
∆VROUT
Vdif1
1mA<IROUT<100mA
-
15
E-1 (page 11~12)
60
mV
1
Vdif2
mV
1
IDD
IROUT=100mA
VIN=VROUT(T)+1.0V
VR Load Regulation
VOLTAGE REGULATOR
VR Dropout Voltage (note 4)
Supply Current
VR Line Regulation
Input Voltage
VR Output Voltage
Temperature Characteristics
VR Ripple Rejection Rate
IROUT=30mA
∆VROUT
VROUT(T)+1.0V<VIN<6.0V
∆VIN ⋅ VROUT
VIN
IROUT=30mA
∆VROUT
IROUT=30mA
-40OC<Topr<85OC
∆Topr ⋅ VROUT
PSRR
VIN=[VROUT(T)+1.0]VDC+0.5Vp-pAC
When VROUT(T) > 4.75V
! VIN=5.75V+0.5Vp-pAC
E-2 (page 11~12)
-
35
70
µA
2
-
0.01
0.20
%/V
1
1.5
-
6.0
V
-
-
±100
-
ppm / C
1
-
60
-
dB
3
O
IROUT=30mA, f=1kHz
IRlim
VIN=VROUT(T)+1.0V
700
800
-
mA
1
VR Current Limiter
[VROUT(E)<1.6V]
IRlim
VIN=VROUT(T)+1.0V
-
800
-
mA
1
Short-Circuit Current
IRshort
VIN=VROUT(T)+1.0V
-
30
-
mA
1
VD Detect Voltage (note 7, 8)
VDF (E)
V
4
VD Hysteresis Range (note 7)
VHYS
V
4
µA
5
ppm / OC
4
MΩ
6
VOLTAGE DETECTOR
VR Current Limiter
[VROUT(E)>1.6V]
x 0.98
VDF (T)
x 1.02
(-30mV)
VDF (E)
VDF (E)
(+30mV)
VDF (E)
x 0.02
x 0.05
x 0.08
VIN = 1.5V
-
1.5
3.0
VIN = 2.0V
-
1.8
3.5
VIN = 3.0V
-
1.8
3.7
VIN = 4.0V
-
1.9
3.8
VIN = 5.0V
-
1.9
3.9
VIN = 6.0V
-
2.0
4.0
VDOUT=0.5V
VD Output Current
(note 9)
VD Detect Voltage
Temperature Characteristics
IDOUT
∆VDF /
-40OC<Topr<85OC
±100
∆Topr ⋅ VDF
Delay Resistance
Rdelay
VIN=6.0V, Vcd=0V
1.0
2.0
3.5
(NOTE 1) Unless otherwise stated, VIN=VROUT(T)+1.0V
(NOTE 2) VROUT(T)=Specified VR Output Voltage
(NOTE 3) VROUT(E)=Actual VR Output Voltage.
(i.e. the VR output voltage when "VROUT(T)+1.0V" is provided at the VIN pin while maintaining a certain IROUT value).
Vdif={VIN1(NOTE6)-VROUT1(NOTE5)}
A voltage equal to 98% of the VR Output Voltage whenever a stabilized VROUT1=IROUT{VROUT(T)+1.0V} is input.
VIN1=The Input Voltage when VOUT1, which appears as Input Voltage is gradually decreased.
VDF (T) : Specified Detect Voltage value
VDF (E) : Actual Detect Voltage value.
VD Output Current value of Detect 'L' type equal to current value during detection
and that of Detect 'H' type equal to current value before detection.
! MIN : VROUT(T) -30mV, VDF(T) -30mV,
(NOTE10) VROUT(T)<1.45V, VDF(T)<1.45V
! MAX : VROUT(T) +30mV, VDF(T) +30mV
(NOTE11) VD detect voltage : For VIN Sense version, XC6402FV / FX, only VDF(T)>1.5V type are available.
(NOTE 4)
(NOTE 5)
(NOTE 6)
(NOTE 7)
(NOTE 8)
(NOTE 9)
Semiconductor Ltd.
Data Sheet
10
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! XC6402F SERIES DROPOUT VOLTAGE
SETTING
VR OUTPUT VOLTAGE
E-1
E-2
OUTPUT
VD DETECT VOLTAGE
DROPOUT VOLTAGE 1
DROPOUT VOLTAGE 2
VOLTAGE
(V)
VOUT
(mV)
Vdif1
(mV)
Vdif2
(V)
VROUT(T)
MIN.
MAX.
0.80
0.770
0.830
0.85
0.820
0.880
0.90
0.870
0.930
0.95
0.920
0.980
1.00
0.970
1.030
1.05
1.020
1.080
1.10
1.070
1.130
1.15
1.120
1.180
1.20
1.170
1.230
1.25
1.220
1.280
1.30
1.270
1.330
1.35
1.320
1.380
1.40
1.370
1.430
1.45
1.420
1.480
1.50
1.470
1.530
1.55
1.519
1.581
1.60
1.568
1.632
1.65
1.617
1.683
1.70
1.666
1.734
1.75
1.715
1.785
1.80
1.764
1.836
1.85
1.813
1.887
1.90
1.862
1.938
1.95
1.911
1.989
2.00
1.960
2.040
2.05
2.009
2.091
2.10
2.058
2.142
2.15
2.107
2.193
2.20
2.156
2.244
2.25
2.205
2.295
2.30
2.254
2.346
2.35
2.303
2.397
2.40
2.352
2.448
2.45
2.401
2.499
2.50
2.450
2.550
2.55
2.499
2.601
2.60
2.548
2.652
2.65
2.597
2.703
2.70
2.646
2.754
2.75
2.695
2.805
2.80
2.744
2.856
2.85
2.793
2.907
2.90
2.842
2.958
2.95
2.891
3.009
TYP.
MAX.
TYP.
700
100
800
250
600
700
500
50
30
MAX.
600
150
400
500
300
400
200
100
300
100
250
27.0
41.0
90.0
135.0
25.0
37.0
80.0
120.0
18.0
28.0
60.0
90.0
Semiconductor Ltd.
Data Sheet
11
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! XC6402F SERIES DROPOUT VOLTAGE (Continued)
SETTING
VR OUTPUT VOLTAGE
E-1
E-2
OUTPUT
VD DETECT VOLTAGE
DROPOUT VOLTAGE 1
DROPOUT VOLTAGE 2
VOLTAGE
(V)
(mV)
(mV)
(V)
VOUT
Vdif1
Vdif2
VROUT(T)
MIN.
MAX.
3.00
2.940
3.060
3.05
2.989
3.111
3.10
3.038
3.162
3.15
3.087
3.213
3.20
3.136
3.264
3.25
3.185
3.315
3.30
3.234
3.366
3.35
3.283
3.417
3.40
3.332
3.468
3.45
3.381
3.159
3.50
3.430
3.570
3.55
3.479
3.621
3.60
3.528
3.672
3.65
3.577
3.723
3.70
3.626
3.774
3.75
3.675
3.825
3.80
3.724
3.876
3.85
3.773
3.927
3.90
3.882
3.978
3.95
3.871
4.029
4.00
3.920
4.080
4.05
3.969
4.131
4.10
4.018
4.182
4.15
4.067
4.233
4.20
4.116
4.284
4.25
4.165
4.335
4.30
4.214
4.386
4.35
4.263
4.437
4.40
4.312
4.488
4.45
4.361
4.539
4.50
4.410
4.590
4.55
4.459
4.641
4.60
4.508
4.692
4.65
4.557
4.743
4.70
4.606
4.794
4.75
4.655
4.845
4.80
4.704
4.896
4.85
4.753
4.947
4.90
4.802
4.998
4.95
4.851
5.049
5.00
4.900
5.100
TYP.
MAX.
TYP.
MAX.
15.0
23.0
50.0
75.0
Semiconductor Ltd.
Data Sheet
12
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! TEST CIRCUITS
XC6402C Series
# Circuit 1
# Circuit 2
V IN
VIN
A
VDOUT
CIN
V IN
V
EN
V
VDOUT
CIN
EN
A
VROUT
A
V SS
VROUT
CL
VRIOUT
.
V SS
V
VEN
CIN:1uF (ceramic)
CIN: 1uF (ceramic)
# Circuit 3
V IN
VDOUT
VIN={VROUT+1.0V}VDC+0.5Vp-pAC
VROUT>4.75V
VIN=5.75VDC+0.5Vp-pAC
V
EN
V
VROUT
A
V SS
V
CL
VEN
# Circuit 4
XC6402CA / CB / CE / CF/ CL / CM / CS type
VIN
XC6402 CC / CD / CH / CK / CN / CP / CT / CU type
V IN
100kΩ
CIN
V IN
V IN
V
100kΩ
VDOUT
VDOUT
CIN
EN
EN
VROUT
V
V
VROUT
V SS
V SS
V
CIN: 1uF (ceramic)
CIN: 1uF (ceramic)
# Circuit 5
XC6402CA / CB / CE / CF/ CL / CM / CS type
XC6402 CC / CD / CH / CK / CN / CP / CT / CU type
V IN
V IN
VDOUT
VDOUT
CIN
CIN
A
EN
VROUT
A
EN
VROUT
VDS
VDS
V SS
V SS
CIN:1 uF (ceramic)
CIN: 1uF (ceramic)
Output Capacitor Corresponding Chart
VR OUTPUT VOLTAGE
0.8 ~1.45V
1.5 ~ 1.75V
1.8V ~ 5.0V
CL
6.8µF
2.2µF
1.0µF
Semiconductor Ltd.
Data Sheet
13
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! TEST CIRCUITS (Continued)
XC6402F Series
# Circuit 1
# Circuit 2
V IN
VIN
A
VDOUT
CIN
V IN
V
VDOUT
CIN
Cd
Cd
A
VROUT
V SS
.
VROUT
CL
VRIOUT
V SS
V
CIN: 1uF (ceramic)
CIN: 1uF (ceramic)
# Circuit 3
VIN
VDOUT
VIN={VROUT+1.0V}VDC+0.5Vp-pAC
VROUT>4.75V
VIN=5.75VDC+0.5Vp-pAC
V
Cd
VROUT
V SS
V
CL
# Circuit 4
XC6402FV / FX type
XC6402FY / FZ type
VIN
V IN
100kΩ
VDOUT
CIN
V IN
V IN
V
100kΩ
VDOUT
CIN
Cd
Cd
VROUT
V
V
VROUT
VSS
V SS
V
CIN: 1uF (ceramic)
CIN: 1uF (ceramic)
# Circuit 5
XC6402FV / FX type
XC6402FY / FZ type
V IN
V IN
VDOUT
VDOUT
CIN
CIN
A
Cd
VROUT
A
Cd
VDS
VROUT
VDS
V SS
V SS
CIN: 1uF (ceramic)
CIN: 1uF (ceramic)
# Circuit 6
XC6402FV / FX type
XC6402FY / FZ type
V IN
VIN
VDOUT
VDOUT
CIN
CIN
Cd
Cd
A
VROUT
A
.
VROUT
.
VSS
V SS
Output Capacitor Corresponding Chart
VR OUTPUT VOLTAGE
0.8 ~1.45V
1.5 ~ 1.75V
1.8V ~ 5.0V
CL
6.8µF
2.2µF
1.0µF
Data Sheet
14
Semiconductor Ltd.
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! OPERATIONAL EXPLANATION
<Output voltage regulator control>
The voltage, divided by resistors R1 & R2 which are connected to the VROUT pin is compared with the internal reference voltage by the error amplifier. The
P-Channel MOSFET, which is connected to the VROUT pin, is then driven by the subsequent output signal. The output voltage at the VROUT pin is controlled
& stabilized by negative feedback.
The
current limit circuit and short circuit protection operate in relation to the level of output current. Further, the voltage regulator's internal circuitry can be shutdown
via the EN pin's signal.
<Detector function with the XC6402 series>
The series' detector function monitors the voltage divided by resistors R3 & R4 which are connected to the VROUT pin or the VIN pin, as well as monitoring the
voltage of the internal reference voltage source via the comparator. The VDSEN pin has options (please refer to the Selection Guide, item 2 on page 2). A
'High' or 'Low' signal level can be output from the VDOUT pin when the VD pin voltage level goes below the detect voltage. The VD output logic has options
(please refer to the Selection Guide, item 3 on page 2). As VDOUT is an open-drain N-channel output, a pull-up resistor of about 220KΩ is needed to achieve
a voltage output. Because of hysteresis at the detector function, output at the VDOUT pin will invert when the detect voltage level increases above the release
voltage (105% of the detect voltage).
For the XC6402C type, in stand-by, if a voltage of the recovery voltage is present at the VROUT pin (from another power source), the VDOUT pin will be high
impedance mode, and the pull up voltage will be output at VDOUT. By connecting the Cdelay pin to a capacitor (Cd), the XC6402F series can apply a delay
time to VDOUT voltage when releasing voltage. The delay time can be calculated from the internal resistance, Rdelay (2MΩ TYP. fixed) and the value of Cd as
per the following equation.
Delay Time = Cdelay x Rdelay x 0.7
Delay Time
Rdelay standard : 1.0 ~ 3.5MΩ
TYP : 2.0MΩ
Cdelay
DELAY TIME (TYP.)
DELAY TIME (TYP.)
0.01 µF
14 msec
7.0 ~ 24.5 msec
0.022 µF
30.8 msec
15.4 ~ 53.9 msec
0.047 µF
65.8 msec
32.9 ~ 115.15 msec
0.1 µF
140 msec
70.0 ~ 245.0 msec
0.22 µF
308 msec
154.0 ~ 539.0 msec
0.47 µF
658 msec
329.0 ~ 1151.5 msec
1 µF
1400 msec
700.0 ~ 2450.0 msec
<Low ESR Capacitors>
With the XC6402 series regulator, a stable output voltage is achievable even if low ESR capacitors are used, as a phase compensation circuit is built-in to the
regulator. In order to ensure the effectiveness of the phase compensation, we suggest that an output capacitor (CL) be connected as close as possible,
between the output pin (VROUT) and the VSS pin. Please use an output capacitor (CL) with a capacitance, based on the chart below. We also suggest an
input capacitor (CIN) of 1µF : this should be connected between VIN and VSS in order to stabilize input power source.
Output Capacitor Corresponding Chart
VR OUTPUT VOLTAGE
0.8 ~1.45V
1.5 ~ 1.75V
1.8V ~ 5.0V
CL
6.8µF
2.2µF
1.0µF
<Current Limiter, Short-Circuit Protection>
The XC6402 series regulator offers a combination of current limit and circuit protection by means of a built-in fixed current limiter circuit and a foldback
circuit. 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, the output voltage drops further and output current decreases. When the output pin is shorted, a current of
about 30mA flows.
Semiconductor Ltd.
Data Sheet
15
XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
! OPERATIONAL EXPLANATION (Continued)
<EN Pin>
The IC's internal regulator circuitry can be shut down via the signal from the EN pin with the XC6402C series. In shutdown mode, output at the VROUT
pin will be pulled down to the VSS level via R1 & R2. Note that as the XC6402*E to K types of the XC6402C series are 'Active HIGH / No Pull-Down' and
XC6402*R to U types of the XC6402C series are 'Active LOW / No Pull-Up', operations will become unstable with the EN pin open (See the chart below).
SERIES
EN INPUT LOGIC
XC6402C A ~ D
Active HIGH with pull-down resistor
XC6402C E ~ K
Active HIGH with no pull-down resistor
XC6402C L ~ P
Active LOW with pull-up resistor
XC6402C R ~ U
Active LOW with no pull-up resistor
We suggest that you use this IC with either a VIN voltage or a VSS voltage input at the EN pin. If this IC is used with the correct specifications for the EN
pin, the IC will operate normally. However, supply current may increase as a result of through current in the IC's internal circuitry if a voltage other than
VIN or VSS is applied.
!
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 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.
Should rapid input fluctuation or load fluctuation occur, please increase the capacitor value such as CIN or CL
to stabilize the operation.
Semiconductor Ltd.
Data Sheet
16