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Description
The R1224N102G-TR is a step-down DC/DC converter controller that belongs to the R1224N Series. It is a CMOS-based IC that has a low supply current and consists of an oscillator, a PWM control circuit, a reference voltage unit, an error amplifier, a phase compensation circuit, a soft-start circuit, a protection circuit, a PWM/VFM alternative circuit, a chip enable circuit, resistors for output voltage detect, and input voltage detect circuit. This IC is capable of delivering a low ripple, high efficiency step-down DC/DC converter with only several external components, such as a power-transistor, an inductor, a diode, and capacitors. Output voltage is fixed, or it can be adjusted with external resistors (adjustable types are without PWM/VFM alternative circuit).
Specifications and Features
- Supply Current: Typ. 30µA (R1224Nxx2G, R1224N102G)
- Standby current: Typ. 0µA
- Input Voltage Range: 2.3V~18.5V
- Output Voltage Range: 1.0V to VIN (R1224N102x), 1.2V to 6.0V (R1224Nxx2x)
- Output Voltage Accuracy: ±2.0%
- Oscillator Frequency: Typ. 300kHz (R1224Nxx2E/G, R1224N102G)
- Efficiency: Typ. 90%
- Low Temperature-Drift Coefficient of Output Voltage: Typ. ±100ppm/°C
- Package: SOT-23-5
- Built-in Soft-start Function: Typ. 10ms
- Built-in Current Limit Circuit
Application Scenarios
The R1224N102G-TR is ideal for various applications, including:
- Power source for handheld communication equipment, cameras, video instruments such as VCRs, and camcorders.
- Power source for battery-powered equipment.
- Power source for household electrical appliances.
Comparison
Advantages- Low supply current
- Low ripple and high efficiency
- Built-in soft-start function
- Fixed or adjustable output voltage
Disadvantages- Output voltage accuracy is not as high compared to other models in the R1224N series which have an accuracy of ±1.0%.
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Datasheet
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Shopping guide
Delivery period:
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Popular parts of the same kind
- Datasheet: Download R1224N102G-TR
- Chipdatas Part: CD92-R1224N102G-TR
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/10/01 08:47 +0800
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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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