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0.8uA Low Power Consumption Dual Voltage Regulator

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GENERAL DESCRIPTION

The XC6411/6412 series are highly precise, low noise, positive voltage LDO dual regulators manufactured using CMOS

processes. The series achieves very low supply current, 0.8

μA / ch. (TYP.) and consists of a reference voltage source, an

error amplifier, a current foldback circuit, and a phase compensation circuit plus a driver transistor. SOT-25 package for the

XC6411P series, SOT-26 package for the XC6412B series and USP-6C package for the XC6412C series (preliminary) make

high density mounting possible. Therefore, the series is ideal for applications where high density mounting is required such

as in mobile equipment.

Output voltage of each regulators VR1 and VR2 is selectable in 100mV increments within a range of 0.9V to 5.0V by laser

trimming. The series is also compatible with low ESR ceramic capacitors, which give added output stability. VR1 and VR2

are completely isolated. For this, a cross talk between each channel, which causes a problem during load fluctuations, can be

greatly reduced, and the stabilized voltage can be supplied. The current limiter's foldback circuit also operates as a short

protect for the output pin.

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TYPICAL APPLICATION CIRCUIT

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APPLICATIONS

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MP3 players, Portable AV equipment

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Mobile phones

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Cordless phones,

wireless communication equipment

●

Portable games

●

Cameras, Video recorders

●

PDAs

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FEATURES

Maximum Output Current : 200mA (300mA Limit, TYP.)

Dropout Voltage

Input Voltage Range

: 1.5V ~ 6.0V

Output Voltage Range

: 0.9V ~ 5.0V (100mV increments)

Highly Accurate

: Set voltage accuracy

±2%

Set voltage accuracy

±30mV

Low Power Consumption : 0.8

μA / ch.(TYP.)

Operating Temperature Range : - 40℃~ 85℃

Low ESR Capacitor Compatible: Ceramic capacitor

Current Limiter Circuit Built-In

Ultra Small Packages

: SOT-25 (XC6411P)

: SOT-26 (XC6412B)

: USP-6C (XC6412C) *Preliminary

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TYPICAL PERFORMANCE

CHARACTERISTICS

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Supply Current vs. Input Voltage

VR1/VR2: 3.0V

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

01

23

45

6

Input Voltage VIN (V)

CIN=1.0μF(ceram ic),CL=0.1μF(ceram ic)

Ta=-40℃

Ta=25℃

Ta=85℃

1uF

(ceramic)

1uF

(ceramic)

0.1uF

(ceram ic)

0.1uF

(ceram ic)

1uF

(ceramic)

0.1uF

(ceram ic)

0.1uF

(ceram ic)

EN2

ETR0320_005