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Description
The R1121N301B-TR is a type of voltage regulator IC that belongs to the R1121N series of IC chips. It is designed using CMOS process and is characterized by a high output voltage accuracy, ultra-low supply current, low dropout voltage, and high ripple rejection. The IC has a voltage reference unit, an error amplifier, resistors, a current limit circuit, and a chip enable circuit, which enable it to perform well in low voltage conditions. The R1121N301B-TR is particularly suitable for power supply in handheld communication equipment and other applications.
Specifications and features
- Ultra-Low Supply Current: 35µA TYP.
- Standby Mode: 0.1µA TYP.
- Low Dropout Voltage: 0.2V TYP. (IOUT=100mA)
- High Ripple Rejection: 70db TYP. (f = 1kHz)
- Low Temperature-Drift Coefficient of Output Voltage: ±100ppm/°C TYP.
- Excellent Line Regulation: 0.05%/V TYP.
- High Accuracy Output Voltage: ±2.0%
- Small Package: SOT-23-5 (Mini-mold)
- Output Voltage: Stepwise setting with a step of 0.1V in the range of 1.5V to 5.0V is possible.
- Built-in chip enable circuit (2 Types; A: active “L”, B: active “H”)
- Pinout: Similar to the TK112, TK111
Application Scenarios
The R1121N301B-TR is mainly used in handheld communication equipment, but it can also be used in other applications where a high output voltage accuracy, low supply current, and high ripple rejection are required.
Comparison
Advantages- High output voltage accuracy.
- Ultra-low supply current.
- Low dropout voltage.
- High ripple rejection.
Disadvantages- The package is SOT-23-5 (Mini-mold), which may not be suitable for applications that require large IC packages.
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Similar parts: 430483 , Click to view
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Datasheet
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Shopping guide
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Popular parts of the same kind
- Datasheet: Download R1121N301B-TR
- Chipdatas Part: CD89-R1121N301B-TR
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/10/01 12:17 +0800
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