R5328K Datasheet, PDF (1/37 Pages) RICOH electronics devices division – Low Voltage 3-Mode 2ch 150mA LDO

R5328K SERIES
Low Voltage 3-Mode 2ch 150mA LDO
NO.EA-139-061106
OUTLINE
The R5328K Series are dual 150mA voltage regulator ICs with 3-mode. The 3-mode describes that they are
the inactive standby, the active fast mode, and the active low power mode. The two active modes can be
switched over with ECO pin. With this function, the output voltage maintains the level, and the mode can be
switched over.
The minimum operating voltage is 1.4V, and the output voltage range is from 0.8V to 4.0V.
Since the package for these ICs is PLP2020-8, high density mounting of the ICs on boards is possible.
FEATURES
• Supply Current (Low Power Mode)...................Typ. 2.0µA×2 (VR1&VR2) (VOUT<2.0V)
Typ. 2.5µA×2 (VR1&VR2) (VOUT ^>= 2.0V)
• Supply Current (Fast Mode)..............................Typ. 75µA×2 (VR1&VR2) (VOUT<2.0V)
Typ. 65µA×2 (VR1&VR2) (VOUT ^>= 2.0V)
• Standby Mode ...................................................Typ. 0.1µA (VR1&VR2)
• Input Voltage .....................................................1.4V to 6.0V
• Output Voltage ..................................................0.8V to 4.0V
• Dropout Voltage ................................................Typ. 0.25V (IOUT=150mA VOUT=2.8V)
• Ripple Rejection (Fast Mode) ...........................Typ. 70dB (f=1kHz, VOUT=2.8V)
Typ. 55dB (f=10kHz, VOUT=2.8V)
• Excellent Line Regulation .................................Typ. 0.02%/V (VOUT ^>= 1.5V)
• Output Voltage Accuracy (Fast Mode) ..............±1.0%
• Output Voltage Accuracy (Low Power Mode) ...±1.5%
• Low Temperature-drift Coefficient of Output Voltage .... Typ. ±100ppm/°C
• Package ............................................................PLP2020-8
• Built-in fold-back protection circuit ....................Typ. 50mA (Current at short mode)
• Ceramic Capacitor is recommended. ..............1.0µF
• Built-in chip enable circuit (A/B: active high)
(Depending on VIN and set VOUT. Refer to the electrical characteristics table.)
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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