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R5325N005B Datasheet(PDF) 1 Page - RICOH electronics devices division

Part # R5325N005B
Description  150mA 2ch LDO REGULATOR
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Manufacturer  RICOH [RICOH electronics devices division]
Direct Link  http://www.ricoh.com
Logo RICOH - RICOH electronics devices division

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R5325x SERIES
150mA 2ch LDO REGULATOR
NO.EA-127-0606
1
OUTLINE
The R5325x Series are CMOS-based voltage regulator ICs with high output voltage accuracy, low supply
current (Typ. 3.0
µA), low dropout, and fast transient response. Each of these voltage regulator ICs consists of a
voltage reference unit, an error amplifier, resistors for setting output voltage, a current limit circuit, and a chip
enable circuit.
These ICs perform with low dropout voltage due to built-in transistor with low ON resistance, and a chip enable
function prolongs the battery life of each system. The line transient response and load transient response of the
R5325x Series are excellent, thus these ICs are very suitable for the power supply for hand-held communication
equipment.
The supply current at no load of R5325x Series is remarkably reduced compared with R5325x Series. The
mode change signal to reduce the supply current is not necessary.
The output voltage of these ICs is internally fixed with high accuracy (
±1.0%) Since the packages for these ICs
are SOT-23-6 and PLP1820-6 package, 2ch LDO regulators are included in each, high density mounting of the
ICs on boards is possible.
FEATURES
• Input Voltage .................................................................1.5V to 6.0V
• Output Voltage ..............................................................1.2V to 4.0V
• High Output Voltage Accuracy ......................................±1.0% (VOUT >
= 1.5V)
• Low Supply Current ......................................................Typ. 3.0µA (VR1, VR2)
• Standby Current ............................................................Typ. 0.1µA (VR1,VR2)
• Low Dropout Voltage.....................................................Typ. 0.2V (IOUT=150mA ,VOUT=3.0V)
• High Ripple Rejection ...................................................Typ. 55dB (f=1kHz)
• Built-in fold-back protection circuit ................................Typ. 50mA (Current at short mode)
• Low Temperature-Drift Coefficient of Output Voltage....Typ. ±100ppm/°C
• Excellent Line Regulation .............................................Typ.0.02%/V
• Built-in chip enable circuit (active “H”)
• Fast Transient Response Time from large load current to small load current (50% less than R5323x)
• Small Packages ..........................................................SOT-23-6, PLP1820-6
• Ceramic Capacitor is recommended. (0.1µF or more)
APPLICATIONS
• Power source for handheld communication equipment.
• Power source for electrical appliances such as cameras, VCRs and camcorders.
• Power source for battery-powered equipment.


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