XC6403/XC6404
Series
High Current, High Speed LDO Regulators, Voltage Detector Function
ETR1002_003
■GENERAL
DESCRIPTION
The XC6403/04 series are highly precise, low noise, high current, positive voltage low dropout regulators with built-in voltage
detector. They are fabricated using Torex’s CMOS process. Performance features of the series includes high ripple rejection
and low dropout voltage, and the series features a voltage reference, an error amplifier, a current limiter and a phase
compensation circuit plus a driver transistor.
Detect voltage is selectable in 100mV increments within the range of 0.9V to 5.6V and the LDO output voltage is selectable
within a range of 0.9V to 5.6V (XC6403) 0.9V to 5.1V (XC6404), also in 100mV increments. The series is also compatible with
low ESR ceramic capacitors which give added output stability. This stability can be maintained even during load fluctuations
due to the excellent transient response of the series. The current limiter's foldback circuit also operates as a short circuit
protection for the output current limiter and the output pin. The series provides options to the user to select from a variety of
circuit features, such as detector monitoring, detector output logic, CE and EN pin input logic, internal pull-up / down
resistance, and power ready. The IC's internal regulator circuit can be placed in stand-by mode via the EN function
(XC6403/04 A to C series). The whole IC can be put in to stand-by mode via the CE function with the XC6403/04D series
(semi-custom). In the stand-by mode, power consumption is greatly reduced. The XC6403/04A and B series features the
toggle operation function. The regulator output can be OFF when the XC6403/04B series detects voltage (semi-custom). The
XC6403/04E series can monitor another power source by using the V
SEN
pin (semi-custom). The XC6403/04F series can
delay the detector output: the delay time can be controlled by the use of an external capacitor (semi-custom).
■APPLICATIONS
●CD-ROM,
CD-R / RW drive
●DVD
drive
●HDD
drive
●Cameras,
Video recorders
●Portable
AV equipment
●Battery
powered equipment
■FEATURES
: More than 300mA (380mA limit)
(1.8≦V
ROUT
≦5.3V)
[XC6403]
More than 500mA (600mA limit)
(2.5V≦V
ROUT
≦4.9V)
[XC6404]
Dropout Voltage
: 200mV @ 100mA
Operating Voltage Range
: 2.0V ~ 6.0V
VR Output Voltage
: 0.9V ~ 5.6V [XC6403]
0.9V ~ 5.1V [XC6404]
Detect Voltage
: 0.9V ~ 5.5V (± 2%)
More than 2.0V (V
IN
sensing)
VR.VD Temp. Coefficient
:
±100ppm/℃(TYP.)
Low Power Consumption
: 35μA (TYP.)
High Ripple Rejection
: 65dB @10kHz
Highly Accurate
:
±2%
Operating Temperature
: - 40 ~ 85℃
Low ESR Capacitor Compatible
Ultra Small Packages
: SOT-25
SOT-89-5
USP-6B
Environmentally Friendly
: EU RoHS Compliant, Pb Free
Maximum
Output Current
■TYPICAL
APPLICATION CIRCUITS
Rpull
220k
Rpull
220k
Rpull
220k
XC6403A ~ D Series
Rpull-u
p
XC6403E Series
Rpull-u
p
XC6403F Series
Rpull-u
p
XC6404A ~ D Series
XC6404E Series
XC6404F Series
1/56
XC6403/XC6404
Series
■PIN
CONFIGURATION
VDOUT 6
VSS 5
VROUT 4
1 EN/CE
VSEN/Cd
2 NC
3 VIN
USP-6B (BOTTOM VIEW)
SOT-25 (TOP VIEW)
■PIN
ASSIGNMENT
PIN NUMBER
SOT-25
1
2
3
3
3
3
4
5
-
SOT-89-5
1
2
5
5
5
5
4
3
-
USP-6B
3
5
1
1
1
1
6
4
2
PIN NAME
V
IN
V
SS
EN
CE
V
SEN
Cd
V
DOUT
V
ROUT
NC
SOT-89-5 (TOP VIEW)
*The dissipation pad for the
USP-6B package 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
V
SS
pin.
FUNCTION
Power Input
Ground
VR ON / OFF Control
ON / OFF Control
VD Monitoring
Delay Capacitor Connection
VD Output
VR Output
No connection
■PRODUCT
CLASSIFICATION
●Selection
Guide
1. TOGGLE FUNCTION, VD SELF-SATURATION AS OPTION
SERIES
TOGGLE FUNCTION (BUILT-IN)
XC6403/04A
VD with Toggle Function
XC6403/04B
VD with Toggle Function and Self-Saturation
XC6403/04C ~ F
VD with No Toggle Function
2. STAND-BY MODE FUNCTION AS OPTION
SERIES
STAND-BY MODE FUNCTION
XC6403/04A ~ C
XC6403/04D
XC6403/04E, F
VR with Stand-By Mode Function
Chip Stand-By Mode Function
No Stand-By Mode Function
(*A ~ D Series)
3. CE / EN INPUT LOGIC, INTERNAL PULL-UP/DOWN AS OPTION
SERIES
CE INPUT LOGIC
XC6403/04 * A ~ D
XC6403/04 * E ~ K
XC6403/04 * L ~ P
XC6403/04 * R ~ U
4. VD SENSE AS OPTION
SERIES
High Active with Pull Down
High Active with No Pull Down
Low Active with Pull Up
Low Active with No Pull Up
(*A ~ D and F Series)
VD SENSE PIN
V
IN
V
OUT
V
SEN
XC6403/04 * A, B, E, F, L, M, R, S, V, X
XC6403/04 * C, D, H, K, N, P, T, U, Y, Z
XC6403/04 E V ~ Z
5. VD OUTPUT LOGIC AS OPTION
SERIES
VD OUTPUT LOGIC FUNCTION
XC6403/04A ~ F
Detect L or Detect H
6. VD DELAY FUNCTION AS OPTION
SERIES
DELAY FUNCTION
XC6403/04A ~ E
XC6403/04F
No Delay
Delay Time Adjustable by Connecting Cd
2/56
XC6403/XC6404
Series
■PRODUCT
CLASSIFICATION (Continued)
●Ordering
Information
XC6403/XC6404
①②③④⑤⑥-⑦
(*1)
DESIGNATOR
DESCRIPTION
SYMBOL
A
B
C
D
E
F
-
DESCRIPTION
Toggle and EN function (preliminary)
Toggle, EN function, VD signal/VR OFF function (preliminary)
EN function
CE function
V
SEN
Pin
Cd pin
As in the chart below.
Internally set sequential number relating to output voltage and detect
voltage (refer to the chart below)
VR setting output voltage range: 0.9V~5.6V [XC6403]
0.9V~5.1V [XC6404]
Detect voltage setting range: 0.9V ~5.5V
100mV increments are available
SOT-25
SOT-25
SOT-89-5
SOT-89-5
USP-6B
USP-6B
①
Operational Function
②
Type of Regulator
③④
Output Voltage &
Detect Voltage
-
⑤⑥-⑦
Packages
Taping Type
(*2)
MR
MR-G
PR
PR-G
DR
DR-G
(*1)
(*2)
The “-G” suffix indicates that the products are Halogen and Antimony free as well as being fully RoHS compliant.
The device orientation is fixed in its embossed tape pocket. For reverse orientation, please contact your local Torex sales office or
representative. (Standard orientation:
⑤R-⑦,
Reverse orientation:
⑤L-⑦)
PIN NUMBER :
②
Types
②
A
B
C
D
E
F
H
K
L
M
N
P
R
S
T
U
V
X
Y
Z
EN / CE
FUNCTION
Function
Function
Function
Function
Function
Function
Function
Function
Function
Function
Function
Function
Function
Function
Function
Function
Nonfunctional
Nonfunctional
Nonfunctional
Nonfunctional
EN / CE LOGIC
High Active
High Active
High Active
High Active
High Active
High Active
High Active
High Active
Low Active
Low Active
Low Active
Low Active
Low Active
Low Active
Low Active
Low Active
-
-
-
-
PULL UP/DOWN
RESISTANCE
Pull-down Function
Pull-down Function
Pull-down Function
Pull-down Function
Nonfunctional
Nonfunctional
Nonfunctional
Nonfunctional
Pull-up Function
Pull-up Function
Pull-up Function
Pull-up Function
Nonfunctional
Nonfunctional
Nonfunctional
Nonfunctional
-
-
-
-
VD SENSE PIN
V
IN
V
IN
V
ROUT
V
ROUT
V
IN
V
IN
V
ROUT
V
ROUT
V
IN
V
IN
V
ROUT
V
ROUT
V
IN
V
IN
V
ROUT
V
ROUT
V
IN
/ V
SEN
V
IN
/ V
SEN
V
ROUT
V
ROUT
VD OUTPUT
LOGIC
Detect L
Detect H
Detect L
Detect H
Detect L
Detect H
Detect L
Detect H
Detect L
Detect H
Detect L
Detect H
Detect L
Detect H
Detect L
Detect H
Detect L
Detect H
Detect L
Detect H
E & F Series
F Series
A ~ D Series
PIN NUMBER①
*The XC6403/04A and XC6403/04B series are under development. For further detail, please ask your sales contacts.
3/56
XC6403/XC6404
Series
■PRODUCT
CLASSIFICATION (Continued)
●Ordering
Information (Continued)
●Pin
Number
●XC6403
Series
③④
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
V
ROUT
1.80
1.80
1.60
1.80
3.00
1.80
1.80
1.80
3.00
2.80
1.80
3.00
1.80
1.80
1.80
2.50
1.80
2.80
-
3.30
V
DOUT
2.40
2.90
1.80
2.00
3.30
2.40
2.90
2.00
3.30
3.10
1.70
4.20
3.00
3.00
2.40
2.90
2.30
3.40
-
3.00
③④
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
V
ROUT
3.30
2.80
-
1.80
3.20
-
-
-
-
4.00
2.85
2.60
2.70
2.85
-
-
-
-
-
-
V
DOUT
3.10
3.10
-
2.40
2.80
-
-
-
-
4.30
2.70
2.40
2.80
2.55
-
-
-
-
-
--
③④
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
V
ROUT
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
V
DOUT
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
③④
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
V
ROUT
1.80
2.80
1.80
2.50
2.85
3.00
3.50
3.00
3.30
-
-
-
-
-
-
-
-
-
-
-
V
DOUT
1.60
3.10
2.00
2.80
3.20
3.30
3.80
4.20
4.00
-
-
-
-
-
-
-
-
-
-
-
③，④
Type
(80 ~ 99 : Standard voltage products)
34 : Hysteresis Range 3.0% (TYP.) for an error flag
For the other voltages, please ask your sales contacts.
●XC6404
Series
③④
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
V
ROUT
2.70
2.70
2.50
3.30
3.30
3.30
3.30
2.80
4.30
3.30
2.80
2.80
3.30
3.30
3.30
3.00
2.80
3.00
2.80
1.80
V
DOUT
4.20
4.20
2.60
4.30
4.40
4.00
5.20
4.30
2.80
3.60
2.10
2.80
3.60
3.60
3.60
2.70
2.50
2.70
2.50
2.90
③④
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
V
ROUT
1.80
1.80
2.50
2.50
2.50
4.30
2.50
3.30
2.60
3.30
3.30
2.85
3.30
3.40
-
-
-
-
-
-
V
DOUT
3.60
4.20
2.90
3.60
4.20
4.00
3.90
3.70
3.90
4.20
4.50
2.60
2.80
4.20
-
-
-
-
-
-
③④
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
V
ROUT
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
V
DOUT
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
③④
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
V
ROUT
1.80
2.80
1.80
2.50
2.85
3.00
3.50
3.00
3.30
-
-
-
-
-
-
-
-
-
-
-
V
DOUT
1.60
3.10
2.00
2.80
3.20
3.30
3.80
4.20
4.00
-
-
-
-
-
-
-
-
-
-
-
For the other voltages, please ask your sales contacts.
4/56
XC6403/XC6404
Series
■PRODUCT
CLASSIFICATION (Continued)
●Ordering
Example (Standard Products)
VOLTAGE
PRODUCT NAME
XC6403/04CH80MR
XC6403/04CE81MR
XC6403/04DE82MR
XC6403/04DE83MR
XC6403/04DE84MR
XC6403/04DE85MR
XC6403/04DE86MR
XC6403/04FV87MR
XC6403/04FV88MR
XC6404DE89MR
XC6404DE90MR
XC6404DE91MR
PRODUCT DESCRIPTION
V
ROUT
EN Function, High Active, V
ROUT
Sense, Detect L
EN Function, High Active, V
IN
Sense, Detect L
CE Function, High Active, V
IN
Sense, Detect L
CE Function, High Active, V
IN
Sense, Detect L
CE Function, High Active, V
IN
Sense, Detect L
CE Function, High Active, V
IN
Sense, Detect L
CE Function, High Active, V
IN
Sense, Detect L
Cd Function, V
IN
Sense, Detect L
Cd Function, V
IN
Sense, Detect L
CE Function, High Active, V
IN
Sense, Detect L
CE Function, High Active, V
IN
Sense, Detect L
CE Function, High Active, V
IN
Sense, Detect L
1.80
2.80
1.80
2.50
2.85
3.00
3.50
3.00
3.30
1.20
1.30
1.50
V
DOUT
1.60
3.10
2.00
2.80
3.20
3.30
3.80
4.20
4.00
2.00
2.00
2.00
5/56
