Details, datasheet, quote on part number: R5320X
PartR5320X
Category
DescriptionCMOS 3ch-ldos for RF Unit
CompanyRicoh Corporation
DatasheetDownload R5320X datasheet
  

 

Features, Applications

The R5320x Series are CMOS-based multi voltage regulator ICs with high output voltage accuracy, extremely low supply current, low noise, low ON-resistance and high ripple rejectio. The R5320x Series contain three voltage regulators. Each of these voltage regulators in the R5320x Series consists of a voltage reference unit, an error amplifier, resistors for setting output voltage, a current limit circuit and a chip enable circuit. The chip enable function contributes to prolong battery life. Further, regulators in the R5320x Series are with low dropout voltage, excellent load transient response and line transient response, thus the R5320x Series are very suitable for the power supply for hand-held communication equipment. The output voltage of each regulator is fixed with high accuracy by laser trim. Since the package for these ICs is SSOP8G and SON8, high density mounting of the ICs on boards is possible.

FEATURES

Ultra-Low Supply Current...........................................Typ. 70A:VR1, Typ. 70A:VR2, Typ. 70A:VR3 Low Standby Current...................................................Typ. 0.1A:VR1, Typ. 0.1A:VR2, Typ. 0.1A:VR3 Low Dropout Voltage...................................................Typ. (VR2,VR3) IOUT=150mA:VR1,80mA:VR2,VR3 (ex. for 3.0V Output Type) High Ripple Rejection..................................................Typ.70dB (f=1kHz) High Output Voltage Accuracy....................................2.0% Excellent Load Transient Response and Line Transient Response Small Package...............................................................8-Pin SSOP (0.65mm pitch), 8-pin SON8 Input Voltage.................................................................Max. 6V

APPLICATIONS

Power source for cellular phones such as GSM,CDMA and Personal Handy-phone System. Power source for electrical appliances such as cameras, VCRs, camcorders, etc. Power source for battery-powered equipment.

VOUT1 R1_1 Error Amp. VOUT2 R1_2 Error Amp. VOUT3 R1_3 Error Amp. R2_3 GND Current Limit Vref CE3 Current Limit Vref CE2 Current Limit Vref CE1 VDD

The selection can be made by designating the part number as shown below : R5320xxxxx-TR Part Number b c Code b c Designation of Package Typ; D: SON8 Serial Number for Voltage setting from 001 Alphabetical Code for Mask Versions A: Standard Descriptions

R5320G (SSOP8G) Pin NO. Symbol VOUT2 VOUT3 GND CE2 CE1 VDD Descriptions Output Pin Output Pin Output Pin Ground Pin Chip Enable Pin Chip Enable Pin Chip Enable Pin Input Pin

*Attention: Tab suspension leads in the parts have VDD voltage level. (They are connected to the reverse side of this IC.) Do not connect to other wires or land patterns.


 

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