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Description
The RP100x Series is a CMOS-based voltage regulator IC with high output voltage accuracy, extremely low supply current, low ON-resistance, and high ripple rejection. It consists of a voltage reference unit, an error amplifier, resistor-net for voltage setting, a current limit circuit, and a chip enable circuit. These ICs perform with low dropout voltage and a chip enable function. The line and load transient response of the RP100x Series is excellent, making them suitable for power supply in handheld communication equipment. The ICs are available in SOT-23-5 and PLP1612-4 packages, allowing for high density mounting on boards.
Specifications and Features
- Supply Current: Typ. 18µA
- Standby Current: Typ. 0.1µA
- Dropout Voltage: Typ. 0.13V (IOUT=150mA, VOUT=2.8V)
- Ripple Rejection: Typ. 75dB (f=1kHz)
- Temperature-Drift Coefficient of Output Voltage: Typ. ±30ppm/°C
- Line Regulation: Typ. 0.02%/V
- Output Voltage Accuracy: ±0.8%
- Packages: PLP1612-4, SOT-23-5
- Input Voltage Range: 1.7V to 5.25V
- Output Voltage Options: 1.2V, 1.3V, 1.5V, 1.8V, 1.85V, 1.9V, 2.0V, 2.1V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 2.9V, 3.0V, 3.1V, 3.3V
- Built-in Fold Back Protection Circuit: Typ. 40mA (Current at short mode)
- Recommended Capacitors: Ceramic capacitors, 1.0µF or more
Application Scenarios
- Power source for portable communication equipment
- Power source for electrical appliances such as cameras, VCRs and camcorders
- Power source for battery-powered equipment
Comparison
Advantages- High output voltage accuracy
- Extremely low supply current
- Low ON-resistance
- High ripple rejection
- Perform with low dropout voltage
- Excellent line and load transient response
- Suitable for power supply in handheld communication equipment
- High density mounting on boards
- Multiple output voltage options
- Built-in Fold Back Protection Circuit
- Recommended use of Ceramic capacitors
Disadvantages- None identified
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- Datasheet: Download RP100K281D5-TR
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