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Description
The R1121N252B is a voltage regulator IC in the R1121N Series, specifically designed for power supply in hand-held communication equipment. With high output voltage accuracy, low supply current, low ON resistance, and high ripple rejection, these ICs are ideal for applications requiring stable power supply. They are housed in a SOT-23-5 (Mini-mold) package, enabling high density mounting on boards.
Specifications and features
- Ultra-Low Supply Current: 35µA (typical)
- Standby Mode: 0.1µA (typical)
- Low Dropout Voltage: 0.2V (IOUT=100mA) (typical)
- High Ripple Rejection: 70dB (f = 1kHz) (typical)
- Low Temperature-Drift Coefficient of Output Voltage: ±100ppm/°C (typical)
- Excellent Line Regulation: 0.05%/V (typical)
- 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 R1121N252B IC is designed for use in applications where stable power supply with high accuracy is critical. It is particularly suitable for hand-held communication equipment due to its low dropout voltage, low temperature-drift coefficient, and excellent line regulation.
Comparison
Advantages- High output voltage accuracy
- Low supply current
- Low ON resistance
- High ripple rejection
- Excellent line regulation
- Small package for high density mounting
Disadvantages- Output voltage cannot be adjusted continuously
- Package is not compatible with all board layouts
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Datasheet
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Shopping guide
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Additional Information
- Datasheet: Download R1121N252B
- Chipdatas Part: CD94-R1121N252B
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/23 10:27 +0800
Refund
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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