XC6402Series
ETR1001_001
High Current, High Speed LDO Regulators, Voltage Detector Function
■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’s 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.
■APPLICATIONS
●CD-ROM, CD-R / RW drive
●DVD drive
■FEATURES
Maximum Output Current
: More than 700mA
(800mA limit)
(1.6V≦VROUT(T)≦5.0V)
: 50mV @ 100mA
100mV @ 200mA
●HDD drive
Dropout Voltage
●Cameras, Video recorders
●Portable AV equipment
●Battery powered equipment
Maximum Operating Voltage : 1.5V ~ 6.0V
VR Output Voltage Range
VD Detect Voltage Range
: 0.8V ~ 5.0V (50mV increments)
: 0.8V ~ 5.0V (50mV increments)
More than 1.5V (VIN sensing)
: ± 2%
Highly Accurate
Low Power Consumption
High Ripple Rejection
Ambient Temperature
Low ESR Capacitor
Ultra Small Packages
: 35μA (TYP.)
: 60dB @1kHz
: - 40℃ ~ 85℃
: Ceramic capacitor compatible
: SOT-25, SOT-89-5, USP-6B,
* VD: Voltage Detector
■
TYPICAL APPLICATIONS CIRCUITS ■TYPICAL PERFORMANCE
●XC6402C Series
CHARACTERISTICS
Rpull-up
●Dropout Voltage vs. VR Output Current
220kΩ
XC6402 Series (VR:3.0V)
CIN=1.0uF(ceramic),CL=1.0uF(ceramic)
0.6
0.5
0.4
0.3
0.2
0.1
0.0
Topr= - 40OC
Topr= 25OC
Topr= 85OC
●XC6402F Series
Rpull-up
220kΩ
0
100
200
300
400
500
600
700
VR Output Current IROUT(mA)
1/31