XC6402_1 Datasheet, PDF (1/31 Pages) Torex Semiconductor – High Current, High Speed LDO Regulators, Voltage Detector Function

XC6402 Series
High Current, High Speed LDO Regulators, Voltage Detector Function
ETR1001_001
■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
●HDD drive
●Cameras, Video recorders
●Portable AV equipment
●Battery powered equipment
■FEATURES
Maximum Output Current : More than 700mA
(800mA limit)
(1.6V≦VROUT(T)≦5.0V)
Dropout Voltage
: 50mV @ 100mA
100mV @ 200mA
Maximum Operating Voltage : 1.5V ~ 6.0V
VR Output Voltage Range : 0.8V ~ 5.0V (50mV increments)
VD Detect Voltage Range : 0.8V ~ 5.0V (50mV increments)
Highly Accurate
More than 1.5V (VIN sensing)
: ± 2%
Low Power Consumption : 35μA (TYP.)
High Ripple Rejection
: 60dB @1kHz
Ambient Temperature
: - 40℃ ~ 85℃
Low ESR Capacitor
: Ceramic capacitor compatible
Ultra Small Packages
: SOT-25, SOT-89-5, USP-6B,
* VD: Voltage Detector
■TYPICAL APPLICATIONS CIRCUITS
●XC6402C Series
Rpull-up
220kΩ
■TYPICAL PERFORMANCE
CHARACTERISTICS
●Dropout Voltage vs. VR Output Current
XC6402 Series (VR:3.0V)
CIN=1.0uF(ceramic),CL=1.0uF(ceramic)
0.6
●XC6402F Series
Rpull-up
220kΩ
0.5
Topr= - 40^OC
Topr= 25^OC
0.4
Topr= 85^OC
0.3
0.2
0.1
0.0
0
100
200
300
400
500
600
700
VR Output Current IROUT(mA)
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