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FS8844
General Description
The FS8844 series is a positive voltage regulator with high accuracy output voltage and ultra-low quiescent current which is typically 2.0£gA. The device is ideal for handheld communication equipments and battery powered applications which require low quiescent current.
The FS8844 contains a bandgap reference voltage source, an error amplifier, a P-channel pass transistor, a resistor-divider for setting output voltage, a current limiter, and temperature limit protection circuits. The high-accuracy output voltage is preset at an internally trimmed voltage 1.8V, 2.8V or 3.3V. Other output voltages can be mask-optioned from 1.2V to 5.0V with 100mV increment.
The FS8844 has been designed to be used with low cost ceramic capacitors and requires a minimum output capacitor of 1.0£gF. The devices are available in SOT-23 packages.
Feature
| • | 2.0µA Quiescent Current (Typ.) | | • | High accuracy of output voltage | | • | ¡Ó2.0% : VOUT¡Ù2.1 V | | • | ¡Ó2.4% : VOUT¡Ø2.0 V | | • | Low Dropout: 550 mV @ IOUT=250mA (MIN.) | | • | 250 mA Output | | • | Thermal Overload Shutdown Protection | | • | Output Short Circuit Protection | | • | Stable Operation with Virtually Any Output Capacitor Type | | • | SOT-23 Packages |
Application
| • | DSC | | • | PDA | | • | MP3 player | | • | Digital Video Recorder | | • | Battery Powered Instrument | | • | Portable Commu |
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