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Description
The R5323x Series are CMOS-based voltage regulator ICs with high output voltage accuracy, low supply current, low dropout, and high ripple rejection. These ICs consist of a voltage reference unit, an error amplifier, resistors for setting the output voltage, a current limit circuit, and a chip enable circuit. The built-in transistor with low ON resistance provides low dropout voltage, and the chip enable function prolongs battery life. The line and load transient responses of the R5323x Series are excellent, making them suitable for power supplies in handheld communication equipment. The ICs are available in SOT-23-6, PLP1820-6, and WL-CSP-6 packages, allowing for high-density mounting on boards.
Specifications and Features
- Low Supply Current: Typ. 90µA (VR1, VR2)
- Standby Mode: Typ. 0.1µA (VR1, VR2)
- Low Dropout Voltage: Typ. 0.22V (IOUT=150mA , Output Voltage Type)
- High Ripple Rejection: Typ. 75dB (VOUT<= 2.4V) , Typ. 70dB (VOUT<= 2.5V) (f=1kHz), Typ. 65dB (VOUT<= 2.4V) , Typ. 60dB (VOUT<= 2.5V) (f=10kHz)
- Low Temperature-drift Coefficient of Output Voltage: Typ. ±100ppm/°C
- Excellent Line Regulation: Typ. 0.02%/V
- High Output Voltage Accuracy: ±2.0%
- Small Packages: SOT-23-6, PLP1820-6, WL-CSP-6
- Output Voltage: Stepwise setting with a step of 0.1V in the range of 1.5V to 4.0V is possible
- Built-in chip enable circuit (A/B: active high)
- Built-in fold-back protection circuit: Typ. 40mA (Current at short mode)
- Ceramic Capacitor is recommended. (1.0µF or more)
Application Scenarios
- 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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Datasheet
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- Datasheet: Download R5323N027B
- Chipdatas Part: CD94-R5323N027B
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