XC6408
Series
28V Operation Voltage Regulator with Voltage Detector
ETR0331-006
■GENERAL
DESCRIPTION
The XC6408 series is a positive voltage regulator IC manufactured using CMOS process with 28V operation voltage. The series
consists of a voltage reference, an error amplifier, a current limiter, a thermal shutdown circuit and a phase compensation circuit
plus a driver transistor. The output voltage and the detect voltage are user selectable in 0.1V increments. The over current
protection circuit and the thermal shutdown circuit are built-in. These two protection circuits will operate when the output current
reaches current limit level or the junction temperature reaches temperature limit level. The XC6408D series monitors its output
voltage and provides reset signal if its output voltage falls below the pre-set voltage. This reset time (release delay time) can be
set by an external capacitor. The XC6408E series monitors an external power supply and enables the output to be turned off
and the IC becomes a stand-by mode.
■APPLICATIONS
●
Note PCs / Tablet PCs
●
Mobile devices / terminals
●
Car audio, Car navigation systems
●
Multi-function power supplies
●
Digital still cameras / Camcorders
●
Smart phones / Mobile phones
■FEATURES
Max Output Current
Dropout Voltage
Input Voltage Range
Output Voltage Range
Detect Voltage Range
：150mA
(V
IN
=V
ROUT
+3.0V)
：175mV
@I
OUT
=20mA (V
ROUT
=12V)
：2.0V∼28.0V
：2.0V∼18.0V
(0.1V increments)
：2.0V∼16.0V
(0.1V increments)
High Accuracy(Regulator)
：±2%
(Detector)
±2.5%
Low Power Consumption
：XC6408D
9.5μA (TYP.)（V
ROUT
=12V, V
DF
=11V）
XC6408E 8μA (TYP.)（V
ROUT
=12V, V
DF
=11V）
Operating Temperature
Packages
Environmentally Friendly
：-40℃∼+85℃
：SOT-89-5,
SOT-25, USP-6C
：EU
RoHS Compliant, Pb Free
■TYPICAL
APPLICATION CIRCUITS
■TYPICAL
PERFORMANCE
CHARACTERISTICS
●Supply
Current vs. Input Voltage
XC6408E (V
ROUT
=12.0V, V
DF
=11.0V)
15
Supply
I
Current: I
SS
(μA)
SS
(uA)
10
XC6408D Series
5
0
0
4
8
12
16
V
Voltage:
IN
(V)
Input
20
24
28
V
IN
(V)
XC6408E Series
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XC6408
Series
■PIN
CONFIGURATION
NC
* The dissipation pad for the USP-6C package should be solder-plated in reference mount pattern and metal
masking 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
(No. 5) pin.
■PIN
ASSIGNMENT
PIN NUMBER
SOT-89-5
SOT-25
1
2
3
4
5
-
5
2
4
3
1
-
USP-6C
1
5
3
4
6
2
PIN NAME
V
ROUT
V
SS
V
SEN
Cd
V
DOUT
V
IN
NC
FUNCTIONS
VR Output
Ground
Sense(E series)
Delay Capacitor(D series)
VD Output
Power Input
No connection
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XC6408
Series
■
PRODUCT CLASSIFICATION
●Selection
Guide
XC6408D Series： V
ROUT
pin voltage detection, release delay capacitor
XC6408E Series： V
SEN
pin for external voltage detection, auto power ON/OFF function
●Ordering
Information
XC6408D①②③④⑤-⑥
（
*1
）
DESIGNATOR
①
ITEM
V
DOUT
Output Configuration
Output Voltage
Detect Voltage
SYMBOL
N
Open Drain
Sequential number relating to output voltage and detect
voltage (refer to the chart below)
V
ROUT
Output Voltage Range: 2.0V∼18.0V
V
DF
Detect Voltage Range: 2.0V∼16.0V
Output voltage and detect voltage can be set in 0.1V increments
USP-6C (3,000/Reel)
SOT-25 (3,000/Reel)
SOT-89-5 (1,000/Reel)
DESCRIPTION
②③
-
④⑤-⑥
(*1)
Packages
(Oder Unit)
ER-G
MR-G
PR-G
The “-G” suffix indicates that the products are Halogen and Antimony free as well as being fully EU RoHS compliant.
DESIGNATOR
②③
(No. 01∼20 is standard voltage)
②③
01
02
03
04
05
06
07
08
09
10
V
ROUT
2.50
3.00
3.30
3.30
5.00
5.00
8.00
9.00
9.00
12.00
V
DF
2.10
2.50
2.70
2.80
4.10
4.20
6.80
5.00
7.50
10.00
②③
11
12
13
14
15
16
17
18
19
20
V
ROUT
−
−
−
−
−
−
−
−
−
−
V
DF
−
−
−
−
−
−
−
−
−
−
For other voltage, please contact your local Torex sales office or representative.
3/34
XC6408
Series
■
PRODUCT CLASSIFICATION
●Ordering
Information
XC6408E①②③④⑤-⑥
（
*1
）
DESIGNATOR
①
ITEM
V
DOUT
Output Configuration
Output Voltage
Detect Voltage
SYMBOL
N
Open Drain
Sequential number relating to output voltage and detect
voltage (refer to the chart below)
V
ROUT
Output Voltage Range: 2.0V∼18.0V
V
DF
Detect Voltage Range: 2.0V∼16.0V
Output voltage and detect voltage can be set in 0.1V increments
USP-6C (3,000/Reel)
SOT-25 (3,000/Reel)
SOT-89-5 (1,000/Reel)
DESCRIPTION
②③
-
④⑤-⑥
(*1)
Packages
(Oder Unit)
ER-G
MR-G
PR-G
The “-G” suffix indicates that the products are Halogen and Antimony free as well as being fully EU RoHS compliant.
DESIGNATOR
②③
(No. 01∼20 is standard voltage)
②③
01
02
03
04
05
06
07
08
09
10
V
ROUT
2.50
3.00
3.30
3.30
5.00
5.00
8.00
9.00
9.00
12.00
V
DF
2.10
2.50
2.70
2.80
4.10
4.20
6.80
5.00
7.50
10.00
②③
11
12
13
14
15
16
17
18
19
20
V
ROUT
2.50
2.50
3.00
3.00
3.30
3.30
5.00
5.00
9.00
12.00
V
DF
2.70
2.80
4.10
4.20
4.10
4.20
5.60
6.80
10.00
15.00
For other voltage, please contact your local Torex sales office or representative.
4/34
XC6408
Series
■
BLOCK DIAGRAMS
XC6408 D Type
XC6408 E Type
*Diodes inside the circuit are an ESD protection diode and a parasitic diode.
5/34
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