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Dual LDO Regulator (ch1=300mA, ch2=100mA) with ON/OFF Switch

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85℃

25℃

-40℃

1CH最大出力電流

300mA

2CH最大出力電流

100mA

2CH

1CH

■GENERAL DESCRIPTION

The XC6419 series is a dual CMOS LDO regulator. The series features high accuracy, low output noise, high

ripple rejection and low dropout and consists of a voltage reference, error amplifier, driver transistor, current limiter,

thermal shutdown circuit and phase compensation circuit. Each output voltage is set independently by laser

trimming and selectable in 0.05V increments within a range of 0.8 to 5.0V.

The EN function turns each output of the two regulators off independently. In this state, the electric charge at the

capacitors. The high level of output stability is maintained even during frequent load fluctuations, due to the

excellent transient response performance. VR1 and VR2 are completely isolated so that a cross talk during load

fluctuations is minimized.

■APPLICATIONS

●

Mobile phones

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Cordless phones, Wireless communication equipment

●

Portable games

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Digital still cameras, Digital video cameras

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Portable audio equipment

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PDAs

■

FEATURES

Input Voltage Range

:

1.5～6.0V

Maximum Output Current

:

ch1.300mA / ch2.100mA

Output Voltage Range

:

0.8～5.0V

Output Accuracy

:

±1% (XC6419A/B)

±2% (XC6419C/D)

Dropout Voltage

（

:

Low Power Consumption

:

ch1.28μA / ch2.23μA

Stand-by Current

:

Less than 0.1μA

Ripple Rejection

:

60dB＠f=1kHz

Current Limit

:

ch1.400mA / ch2.150mA

Low ESR Capacitor

CL High Speed Discharge

Small Packages

:

USP-6C, SOT-26

■TYPICAL APPLICATION CIRCUITS

ETR0338-003

■TYPICAL PERFORMANCE

CHARACTERISTICS

●Dropout Voltage vs. Output Current

ch2 Maximum Output Current

ch1 Maximum Output Current

ch2

ch1