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R5324D Datasheet(PDF) 1 Page - RICOH electronics devices division |
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R5324D Datasheet(HTML) 1 Page - RICOH electronics devices division |
1 / 28 page CMOS 3CH-LDOs for RF Unit R5324D SERIES 1 R5324D_E.doc/2003/02/10 NO. EA-099-0301 OUTLINE The R5324D Series are CMOS-based multi positive voltage regulator ICs with high output voltage accuracy, low supply current, low noise, low dropout and high ripple rejection. The R5324D Series contain three voltage regulators. Each of these voltage regulators in the R5324D Series consists of a voltage reference unit, an error amplifier, resistors for setting output voltage, a short current limit circuit, a chip enable circuit, and so on. The chip enable function contributes to prolong battery life. Further, regulators in the R5324D Series are with low dropout voltage, excellent load transient response and line transient response, thus the R5324D series are very suit- able for the power supply for hand-held communication equipment. Since the package for these ICs is SON-8, high density mounting of the ICs on boards is possible. FEATURES • Ultra-Low Supply Current ...........................................Typ. 90µA: VR1, Typ. 90µA: VR2, Typ. 90µA: VR3 • Low Standby Current...................................................Typ. 0.1µA • Low Dropout Voltage ...................................................Typ. 0.23V (VR1) 0.22V(VR2) 0.15V (VR3) IOUT=200mA: VR1, 150mA: VR2, 100mA: VR3 (ex. for 3.0V Output Type) • High Ripple Rejection ..................................................Typ. 70dB (f=1kHz), 65dB (f=10kHz) • High Output Voltage Accuracy ....................................±2.0% • Excellent Load Transient Response and Line Transient Response • Small Package...............................................................SON-8 • Ceramic Capacitor Recommended for Output ............1.0µF or more APPLICATIONS • Power source for cellular phones and portable communication equipment. • Power source for electrical appliances such as cameras, VCRs. • Power source for battery-powered equipment. |
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