XC6405
Series
High Current, High Speed LDO Regulators, Voltage Detector Function
ETR1003_002
The XC6405 series are precise, low noise, high speed, 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 5.5V and the LDO output voltage is selectable
within a range of 0.9V to 5.1V, 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 (XC6405 A to C series). The whole IC can be put in to stand-by mode via the CE function with the
XC6405D series (semi-custom). In the stand-by mode, power consumption is greatly reduced. The XC6405 A and B series
features the toggle operation function. The regulator output can be OFF when the XC6405B series detects voltage
(semi-custom). The XC6405E series can monitor another power source by using the V
SEN
pin (semi-custom).
The XC6405F series can delay the detector output: the delay time can be controlled by the use of an external capacitor
(semi-custom).
■GENERAL
DESCRIPTION
■APPLICATIONS
●CD-ROM,
CD-R/RW drive
●DVD
drive
●HVD
drive
●Cameras,
Video recorders
●Portable
AV equipment
●Battery
powered equipment
■FEATURES
: More than 500mA
(600mA limit)
(2.5V≦V
ROUT
≦4.9V)
Dropout Voltage
: 200mV @ 100mA
400mV @ 200mA
Operating Voltage Range
: 2.0V ~ 6.0V
VR Setting Output Voltage
: 0.9V~ 5.1V (±2%)
Detect Voltage Setting Range
: 0.9V ~ 5.5V (±2%)
More than 2.0V (V
IN
sensing)
VR.VD Temperature Coefficient
:
±100ppm/℃
(TYP.)
Low Power Consumption
: 90μA (TYP.)
High Ripple Rejection
: 65dB (@10kHz)
Operational Temperature
: - 40 ~ 85℃
Low ESR Capacitor Compatible
Highly Accurate
:
±2%
Ultra Small Packages
: SOT-25 (SOT-23-5)
: SOT-89-5
Maximum Output Current
■TYPICAL
APPLICATION CIRCUITS
Rpull-up
200k
Rpull-up
200k
Rpull-up
200k
XC6405A ~ D Series
XC6405E Series
XC6405F Series
1/55
XC6405
Series
■PIN
CONFIGURATION
SOT-25 (TOP VIEW)
SOT-89-5 (TOP VIEW)
■PRODUCT
CLASSIFICATION
PIN NUMBER
SOT-25
SOT-89-5
1
2
3
3
3
3
4
5
1
2
5
5
5
5
4
3
PIN
NAME
V
IN
V
SS
EN
CE
V
SEN
Cd
V
DOUT
V
ROUT
FUNCTION
Power Input
Ground
VR ON / OFF Control
ON / OFF Control
VD Monitoring
Delay Capacitor Connection
VD Output
VR Output
■PRODUCT
CLASSIFICATION
●Selection
Guide
1. TOGGLE FUNCTION, VD SELF-SATURATION AS OPTION
SERIES
XC6405A
XC6405B
XC6405C ~ F
SERIES
XC6405A ~ C
XC6405D
XC6405E,F
SERIES
XC6405 * A ~ D
XC6405 * E ~ K
XC6405 * L ~ P
XC6405 * R ~ U
SERIES
XC6405 * A, B, E, F, L, M, R, S, V,
XC6405 * C, D, H, K, N, P, T, U, Y,
XC6405 EV ~ Z
5. VD OUTPUT LOGIC AS OPTION
SERIES
XC6405A ~ F
SERIES
XC6405A ~ E
XC6405F
VD OUTPUT LOGIC FUNCTION
Detect L or Detect H
VD OUTPUT LOGIC FUNCTION
No Delay
Delay Time Adjustable by Connecting
TOGGLE FUNCTION (BUILT-IN)
VD with Toggle Function
VD with Toggle Function and
VD with No Toggle Function
STAND-BY MODE FUNCTION
VR with Stand-By Mode Function
Chip Stand-By Mode Function
No Stand-By Mode Function
CE INPUT LOGIC
High Active with Pull Down
High Active with No Pull Down
Low Active with Pull Up
Low Active with No Pull Up
VD SENSE PIN
V
IN
V
OUT
V
SEN
2. STAND-BY MODE FUNCTION AS OPTION
3. CE / EN INPUT LOGIC INTERNAL PULL-UP/DOWN AS OPTION (* A ~ D Series)
4. VD SENSE AS OPTION (*A ~ D and F Series)
6. VD DELAY FUNCTION AS OPTION
2/55
XC6405
Series
■PRODUCT
CLASSIFICATION (Continued)
●Ordering
Information
XC6405①②③④⑤⑥
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 (preliminary)
: CE function (preliminary)
: V
SEN
Pin (preliminary)
: 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~5.1V
Detect voltage setting range: 0.9V ~5.5V
100mV increments are available
: SOT-25
: SOT-89-5
: Embossed tape, standard feed
: Embossed tape, reverse feed
①
Operational Function
②
Type of Regulator
Output Voltage &
Detect Voltage
③ ④
-
⑤
⑥
Package
Device Orientation
M
P
R
L
●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 NUMBER
①
* The XC6405A, XC6405B, XC6405C, XC6405D, XC6405E series are under development.
For further detail, please ask your sales contacts.
3/55
XC6405
Series
■PRODUCT
CLASSIFICATION (Continued)
●PIN
NUMBER :
③, ④
③④
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
V
ROUT
2.20
3.30
3.30
3.00
3.30
3.30
1.80
3.30
3.30
3.30
2.60
3.30
1.80
V
DOUT
1.80
3.80
4.20
2.60
4.00
3.60
2.30
3.10
3.00
2.80
3.90
3.70
3.60
Types
③④
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
(80 ~ 99 : Standard voltage products)
V
ROUT
V
DOUT
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.
●Ordering
Example (Standard Products)
PRODUCT NAME
XC6405CH80MR
XC6405CE81MR
XC6405DE82MR
XC6405DE83MR
XC6405DE84MR
XC6405DE85MR
XC6405DE86MR
XC6405FV87MR
XC6405FV88MR
XC6405DE89MR
XC6405DE90MR
XC6405DE91MR
PRODUCT DESCRIPTION
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
VOLTAGE
V
ROUT
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
Except for the standard products, minimum ordering quantity is 15K.
4/55
XC6405
Series
■ABSOLUTE
MAXIMUM RATINGS
PARAMETER
Input Voltage
VR Output Current
VR Output Voltage
VD Output Current
VD Output Voltage
V
CE
/ V
SEN
/ Cd
Pin Voltage
SOT-25
Power Dissipation
SOT-89-5
Operating Temperature Range
Storage Temperature Range
SYMBOL
V
IN
V
RIOUT
V
ROUT
V
DIOUT
V
DOUT
V
CE
V
SEN
/ Cd
Pd
Topr
Tstg
RATINGS
7.0
700
V
SS
-0.3 ~ V
IN
+0.3
50
V
SS
-0.3 ~ 7.0
V
SS
-0.3 ~ V
IN
+0.3
250
500
- 40 ~ + 85
- 55 ~ + 125
UNITS
V
mA
V
mA
V
V
mW
℃
℃
■ELECTRICAL
CHARACTERISTICS XC6405 series
●XC6405
Series
PARAMETER
Output Voltage (*2, 3)
Maximum Output Current
(0.9 ~ 2.4V product)
Maximum Output Current
(2.5 ~ 4.9V product)
Load Regulation
Dropout Voltage (*4)
Supply Current
(No Pull-up Resistor)
VOLTAGE REGULATOR
Supply Current
(With Pull-up Resistor)
SYMBOL
V
ROUT(E)
I
ROUTMAX
I
ROUTMAX
△V
ROUT
Vdif1
Vdif2
I
DD
I
DD
CONDITIONS
I
ROUT
=30mA
V
IN
=V
ROUT(T)
+2.0V
V
IN
=V
ROUT(T)
+2.0V
When V
ROUT(T)
≧4.0V,
VIN=6.0V
1mA≦I
ROUT
≦100mA
I
ROUT
=30mA
I
ROUT
=100mA
V
IN
=V
EN
=V
ROUT(T)
+1.0V,
V
ROUT
≦0.9V,
V
IN
=2.0V
V
IN
=V
EN
=V
ROUT(T)
+1.0V,
V
ROUT
≦0.9V,
V
IN
=2.0V
-
-
MIN.
TYP.
Ta=25℃
MAX. UNITS
CIRCUIT
V
mA
mA
mV
mV
mV
145
165
μA
μA
①
①
①
①
①
①
②
②
×0.98
V
ROUT(T)
×1.02
400
500
-
-
-
15
E-1
E-2
90
100
-
-
50
Line Regulation
V
ROUT(T)
+1.0V≦V
IN
≦6.0V
When V
ROUT
≦0.9V,
△V
ROUT
△V
IN
½
V
ROUT
2.0V≦V
IN
≦6.0V,
I
ROUT
=30mA
When V
ROUT
≦1.75V,
I
ROUT
=10mA
V
IN
-
I
ROUT
=30mA
-40℃≦Topr≦85℃
V
IN
=[V
ROUT(T)
+1.0]V+0.5V
p-pAC
When V
ROUT(T)
≦1.25V
→
V
IN
=2.25V+0.5Vp-pAC
When V
ROUT(T)
≧4.75V
→
V
IN
=5.75V+0.5Vp-pAC
I
ROUT
=50mA, f=10kHz
V
IN
=V
ROUT(T)
+2.0V
V
IN
=V
ROUT(T)
+2.0V
When V
ROUT(T)
≧4.0V,
V
IN
=6.0V
V
IN
=V
ROUT(T)
+2.0V
When V
ROUT(T)
≧4.0V,
V
IN
=6.0V
-
0.01
0.20
%/V
①
Input Voltage
2.0
-
-
±100
6.0
-
V
ppm
/℃
-
①
Output Voltage
△V
ROUT
Temperature Characteristics
△Topr
½
V
ROUT
Ripple Rejection Rate
PSRR
-
65
-
dB
③
Current Limiter
(2.4V or less)
Current Limiter
(2.5V or more)
Short-Circuit Current
I
Rlim
I
Rlim
I
Rshort
-
500
-
600
600
50
-
-
-
mA
mA
mA
①
①
①
5/55
