VR x 4,VD x 2 Multi Power Supply
Series
649
10
The XC641A series are highly precise, low power consumption, multi
power supply IC s, manufactured using CMOS and laser trimming
technologies. The IC consists of a highly precise reference, 4 voltage
regulators, 2 voltage detectors, and an output control circuit.
Because the regulators can be disabled through the EN pins, in stand-
by, current consumption can be greatly reduced. The minimal input /
output differential supports efficient voltage circuit design. The XC641A
is particularly suitable for use with battery powered equipment where
power supply control is all important.
The series comes in a small TSSOP-16 package.
General Description
Output Voltage / Detect Voltage Range
: 2V ~ 5V : Selectable in 0.1V
increments ( Semi-Custom )
Highly Accurate
: Setup voltage 2%
Low power consumption : TYP 25
A
TYP 6
A [ When the EN input is
OFF (standard products) ]
Output voltage temperature characteristics
: TYP100ppm/C
Small Package
: TSSOP-16
GBattery Operated Power Supply Systems
GMobile Phones, Cordless Phones, and other
Portable Communication Systems.
Features
Applications
NCMOS Low Power Consumption
N4 Voltage Regulators and 2 Voltage
Detectors Built-In.
NOutput Control Circuit
NOutput Voltage and Detect Voltage Range
: 2V ~ 5V
NOutput Voltage Accuracy and Detect
Voltage Range: 2%
N16 Pin TSSOP Package
OUT4
DIN2
CD1
Dout2
Dout1
OUT1
EXT1
VSS
VDD
OUT3
DIN1
EN3
EN2
EN1
OUT2
EXT2
XC641A Series
VCC
I/O
I/O
I/O
/RESET
INT
P
TRANSMITTER
AUDIO
PERIPHERAL
BA
TTER
Y
Typical Application Circuit
10S_01XC641A 02.09.12 15:36 649
XC641A
Series
650
10
Pin Configuration
Pin Assignment
Product Classification
GOrdering Information:
1
2
OUT4
3
4
5
6
7
8
EXT1
16
15
14
13
12
11
10
9
TSSOP-16
(TOP VIEW)
OUT1
OUT3
DIN1
EN3
EN2
EN1
OUT2
EXT2
V
SS
D
OUT1
D
OUT2
CD1
DIN2
V
DD
PIN NUMBER
PIN NAME
FUNCTION
1
OUT4
Voltage Regulator 4 Output
2
D
IN
2
Voltage Detector 2 Input
3
CD1
Delay Generating Circuit Output
4
D
OUT
2
Voltage Detector 2 Output
5
D
OUT
1
Voltage Detector 1 Output
6
OUT1
Voltage Regulator 1 Output Voltage Monitor
7
EXT1
Voltage Regulator 1 External Transistor Connection
8
V
SS
Ground
9
EXT2
Voltage Regulator 2 External Transistor Connection
10
OUT2
Voltage Regulator 2 Output Voltage Monitor
11
EN1
Voltage Regulator 1 Enable ( Positive Logic )
12
EN2
Voltage Regulator 2 Enable ( Positive Logic )
13
EN3
Voltage Regulator 3 Enable ( Positive Logic )
14
D
IN
1
Voltage Detector 1 Input
15
OUT3
Voltage Regulator 3 Output
16
V
DD
Power Supply
R = Embossed Tape ( Right )
L = Embossed Tape ( Left )
DESCRIPTION
SYMBOL
DESCRIPTION
SYMBOL
Voltage Characteristics :
Based on internal standards
Package Type :
V = TSSOP-16
Device Orientation :
Functions
EN1
EN2
EN3
VR1
VR2
VR3
H
-
-
ON
-
-
L
-
-
OFF
-
-
-
H
-
-
ON
-
-
L
-
-
OFF
-
-
-
H
-
-
ON
-
-
L
-
-
OFF
INPUT
VOLTAGE REGULATOR OUTPUT
H = High Level : L = Low Level
10S_01XC641A 02.09.12 15:36 650
XC641A
Series
653
10
Absolute Maximum Ratings
Ta = 25
C
PARAMETER
SYMBOL
RATINGS
UNITS
Input Voltage
V
IN
-0.3 ~ +12
V
Output Voltage
V
OUT
-0.3 ~ V
IN
+0.3
V
EXT Pin Voltage
V
EXT
-0.3 ~ +12
V
D
IN
Pin Voltage
V
DIN
-0.3 ~ V
IN
+0.3
V
D
OUT
Pin Voltage
V
DOUT
-0.3 ~ 12
V
CD1 Pin Voltage
V
CD1
-0.3 ~ V
IN
+0.3
V
EN Pin Voltage
V
EN
-0.3 ~ V
IN
+0.3
V
Output Current
I
OUT
200
mA
EXT Pin Current
I
EXT
50
mA
D
OUT
Pin Current
I
DOUT
20
mA
Pd
350
mW
Pd
630
mW
Operating Ambient Temperature
Topr
-30 ~ +80
C
Storage Temperature
Tstg
-40 ~ +125
C
All voltage is ground standardised.
Note :
Please ensure that the sum total of power used within the IC does not exceed the
continuous total power dissipation (Pd) figure.
The figure for total continuous power dissipation ( mounted ) represents the
value when tested on a single sided glass epoxy board of dimensions :
21mm x 32mm ; t = 1.6mm
Power Dissipation
Power Dissipation ( mounted )
Electrical Characteristics (XC641A0001V)
Voltage Conditions
CONDITIONS
SYMBOL
VALUE
UNITS
Input Voltage
V
IN
DEF
4.4
V
Set-Up Voltage Table
Ta = 25
C
CIRCUIT
PARAMETER
SYMBOL
VALUE
UNITS
Voltage Regulator 1
Output Voltage
V
OUT
(T)
3.0
V
Voltage Regulator 2
Output Voltage
V
OUT
(T)
3.0
V
Voltage Regulator 3
Output Voltage
V
OUT
(T)
3.0
V
Voltage Regulator 4
Output Voltage
V
OUT
(T)
3.0
V
Voltage Detector 1
Detect Voltage
V
DF1
3.4
V
Voltage Detector 2
Detect Voltage
V
DF2
2.5
V
Electrical Characteristics (XC641A0001V)
10S_01XC641A 02.09.12 15:36 653
PDF 
ZIP
