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Built-in Inrush Current Protection, 300mA High Speed LDO Voltage Regulator

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APPLICATIONS

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Digital still cameras

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Cell phones

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Portable games

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Camera modules

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IC recorders

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Portable media players

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Bluetooth

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Wireless LAN

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Terrestrial digital TV tuners

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Cordless phones

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TYPICAL APPLICATION CIRCUIT

ETR0339-005

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FEATURES

Maximum Output Current

: 300mA

Input Voltage Range

: 1.6～5.5V

Output Voltages

: 2.0～4.0V （Accuracy ±1%）

1.2～1.95V （Accuracy ±20mV）

0.05V increments

Dropout Voltage

Low Power Consumption

: 100μA

Stand-by Current

: 0.1μA

High Ripple Rejection

: 80dB＠f=1kHz

Protection Circuits

: Current Limit（400mA）

Short Circuit Protection

Over Heat Protection

Inrush Current Protection

Low ESR Capacitors

CE Function

: Active High

Small Packages

: USPQ-4B03

USP-4

SSOT-24

SOT-25

SOT-89-5

Environmentally Friendly

: EU RoHS Compliant, Pb Free

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TYPICAL PERFORMANCE

CHARACTERISTICS

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GENERAL DESCRIPTION

The XC6223 series is a high speed LDO regulator that features high accurate, low noise, high ripple rejection, low dropout

and low power consumption. The series consists of a voltage reference, an error amplifier, a driver transistor, a current limiter, a

phase compensation circuit, a thermal shutdown circuit and an inrush current protection circuit.

The CE function enables the circuit to be in stand-by mode by inputting low level signal. In the stand-by mode, the series

The output voltage is selectable in 0.05V increments within the range of 1.2V to 4.0V which fixed by laser trimming

technologies. The over current protection circuit and the thermal shutdown circuit are built-in. These two protection circuits

will operate when the output current reaches current limit level or the junction temperature reaches temperature limit level.

XC6223x251

2.20

2.25

2.30

2.35

2.40

2.45

2.50

2.55

2.60

Time [20μs/div]

0

50

100

150

200

250

300

350

400

Output Voltage

Output Current