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Description
The R1160x Series is a group of CMOS-based voltage regulator ICs that have high output voltage accuracy, low supply current, and low ON-resistance. Each voltage regulator IC comprises a voltage reference unit, an error amplifier, resistors for setting the output voltage, a current limit circuit, and a chip enable circuit. The ICs perform with low dropout voltage and a chip enable function. There are three modes which include a standby mode with CE or standby control pin and two modes realized with ECO pin™. Fast Transient Mode (FT mode) and Low Power Mode (LP mode) are alternative modes with ECO pin™. Consumption current is reduced to 1/10 at Low Power Mode compared with Fast Transient Mode. Output voltage is maintained between FT mode and LP mode. Internally, the output voltage of these ICs is fixed with high accuracy. The SOT-23-5 and SON-6 packages of these ICs make them suitable for high-density mounting of the ICs on boards.
Specifications and features
- Ultra-Low Supply Current: Typically 3.5µA (Low Power Mode, VOUT < = 1.5V), Typ. 40µA (Fast Transient Mode)
- Standby Mode: Typically 0.1µA
- Low Dropout Voltage: Typically 0.30V (IOUT=200mA 3.0V Output Voltage=1.0V Type), Typ. 0.20V (IOUT=200mA 3.0V Output Voltage=1.5V Type), Typ. 0.14V (IOUT=200mA 3.0V Output Voltage=3.0V Type)
- High Ripple Rejection: Typically 70dB (f=1kHz,FT Mode)
- Low Temperature-Drift Coefficient of Output Voltage: Typ. ±100ppm/°C
- Excellent Line Regulation: Typically 0.05%/V
- High Output Voltage Accuracy: ±2.0% (±3.0% at LP Mode)
- Output Voltage: 0.8V to 3.3V
- Input Voltage: Min. 1.4V
- Built-in Fold-Back Protection Circuit: Typically 50mA (Current at short mode)
- Small Packages: SOT-23-5 (Super Mini-mold), SON-6
Application Scenarios
- Precision Voltage References
- Power source for electrical appliances such as cameras, VCRs, and hand-held communication equipment
- Power source for battery-powered equipment
Comparison
Advantages- High output voltage accuracy
- Low dropout voltage
Disadvantages- None mentioned
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- Datasheet: Download R1160N291B-TR
- Chipdatas Part: CD88-R1160N291B-TR
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