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High Current, High Speed LDO Regulators, Voltage Detector Function

XC6402 Series (VR:3.0V)

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VR Output Current IROUT(mA)

CIN=1.0uF(ceramic),CL=1.0uF(ceramic)

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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.

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APPLICATIONS

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CD-ROM, CD-R / RW drive

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DVD drive

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HDD drive

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Cameras, Video recorders

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Portable AV equipment

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Battery powered equipment

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TYPICAL APPLICATIONS CIRCUITS ■TYPICAL PERFORMANCE

CHARACTERISTICS

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XC6402C Series

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XC6402F Series

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Dropout Voltage vs. VR Output Current

Rpull-up

220kΩ

Rpull-up

220kΩ

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FEATURES

Maximum Output Current

: More than 700mA

(800mA limit)

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

: ± 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

ETR1001_001