RH5RH333B - Brand New STMicroelectronics IC Chips
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Description
The RH5RH333B is a PWM Step-up DC/DC converter IC by CMOS process. It consists of an oscillator, a PWM control circuit, a driver transistor (Lx switch), a reference voltage unit, an error amplifier, a phase compensation circuit, resistors for voltage detection, a soft-start circuit, and an Lx switch protection circuit. This IC can construct a low ripple, high efficiency step-up DC/DC converter with only three external components, including an inductor, a diode, and a capacitor. The RH5RH333B achieves an ultra-low supply current of TYP. 15µA through a newly developed PWM control circuit.
Specifications and features
- Small Number of External Components: Only an inductor, a diode, and a capacitor (RH5RH333B)
- Low Supply Current: TYP. 15µA (RH5RH301A)
- Low Ripple and Low Noise
- Low Start-up Voltage (when the output current is 1mA): MAX. 0.9V
- High Output Voltage Accuracy: ±2.5%
- High Efficiency: TYP. 85%
- Low Temperature-Drift Coefficient of Output Voltage: TYP. ±50 ppm/˚C
- Soft-Start: MIN. 500µs
- Small Packages: SOT-89 (RH5RH333B, RH5RH333B), SOT-89-5 (RH5RH333B)
Application Scenarios
The RH5RH333B IC is commonly used in applications where a step-up DC/DC converter with low ripple and high efficiency is required. It can be used in various electronic devices and systems that require stable and accurate output voltages.
Comparison
Advantages- Requires only a small number of external components
- Low supply current
- Low ripple and low noise
- High output voltage accuracy
- High efficiency
- Low temperature-drift coefficient of output voltage
- Soft-start feature
- Available in small packages
DisadvantagesNo specific disadvantages have been mentioned for the RH5RH333B IC.
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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 RH5RH333B
- Chipdatas Part: CD93-RH5RH333B
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
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- Last Updated: 2024/10/01 10:45 +0800
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