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XC6402 Datasheet

  • XC6402

  • High Current, High Speed LDO Regulators, Voltage Detector Fu...

  • 16頁

  • TOREX

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XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
October 20, 2003 Ver. 2
!
Low Power Consumption
!
Maximum Output Current
!
Dropout Voltage
!
Operating Voltage Range
!
VR Output Voltage Range
!
: 35碌A(chǔ) (TYP.)
: more than 700mA (800mA limit)
: 50mV @ 100mA
: 100mV @ 200mA
: 1.5V ~ 6.0V
: 0.8V ~ 5.0V
!
APPLICATIONS
"
"
"
"
"
"
CD-ROM, CD-R / RW drive
DVD drive
HDD drive
Cameras, Video recorders
Portable AV equipment
Battery powered equipment
VD Output Voltage Range
: 0.8V ~ 5.0V
Low ESR capacitor compatible
!
GENERAL DESCRIPTION
The XC6402 series are precise, low noise, high current, positive voltage
low dropout regulators with built-in voltage detector. They are fabricated
using Torex鈥檚 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.
!
FEATURES
Maximum Output Current
: more than 700mA (800mA limit)
(1.6V<VROUT(T)<5.0V)
Dropout Voltage
Maximum Operating Voltage
VR Output Voltage Range
VD Output Voltage Range
: 50mV @IOUT=100mA
: 1.5V ~ 6.0V
: 0.8V ~ 5.0V (50mV step)
: 0.8V ~ 5.0V (50mV step)
When monitoring VIN : more than 1.5V
Highly Accurate
Low Power Consumption
High Ripple Rejection
Operational Ambient Temperature:
Low ESR Capacitor Compatible
Ultra Small Packages
: 鹵 2%
: 35碌A(chǔ) (TYP.)
: 60dB (@1kHz)
: - 40 ~ 85
O
C
: Ceramic capacitor
: SOT-25 (SOT-23-5)
: SOT-89-5
: USP-6B
* VD: Voltage Detector
!
TYPICAL APPLICATIONS CIRCUITS
#
XC6402C Series
Rpull-up
220K
!
TYPICAL PERFORMANCE CHARACTERISTICS
#
Dropout Voltage vs. VR Output Current
XC6402 Series (VR : 3.0V)
CIN
1uF
1
2
3
CL
1uF
V
IN
V
SS
EN
5
1.0
0.9
0.8
CIN=1uF(ceramic), CL=1.0uF(ceramic)
VR
OUT
VD
OUT
4
Dropout Voltage Vdif (V)
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
- 40
O
C
- 25
O
C
- 85
O
C
#
XC6402F Series
1
2
3
CL
1uF
EN
5
Rpull-up
220K
CIN
1uF
V
IN
V
SS
0
100
200
300
400
500
600
700
VR
OUT
VD
OUT
4
VR Output Current IROUT (mA)
Semiconductor Ltd.
Data Sheet
1

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