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Description
The RH5RH552B-T2 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. With only three external components (an inductor, a diode, and a capacitor), this IC can be used to construct a low ripple, high efficiency step-up DC/DC converter. It is part of the RH5RH××1A/××2B/××3B series of ICs, which achieve an ultra-low supply current of TYP. 15µA (no load) thanks to the newly developed PWM control circuit.
Specifications and features
- Small Number of External Components: Only an inductor, a diode, and a capacitor (RH5RH××1A)
- 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 (RH5RH××1A, RH5RH××2B), SOT-89-5 (RH5RH××3B)
Application Scenarios
The RH5RH552B-T2 IC is suitable for use in various applications, including but not limited to:
- Step-up DC/DC converters
- Electronics devices with low power requirements
- Portable electronic devices
Comparison
Advantages- Low supply current
- Low ripple and low noise
- High efficiency
- Small number of external components
Disadvantages- May not be suitable for high power applications
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Datenblatt
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Shopping guide
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Beliebte Teile der gleichen Art
- Datasheet: Download RH5RH552B-T2
- Chipdaten Teil: CD94-RH5RH552B-T2
- Lagerhaus: China, Hongkong
- Versenden: Innerhalb von 24 Stunden
- Kostenloser Versand: Yes
- Bevorzugter Versand: Yes, 3-5 days
- Letzte Aktualisierung: 2024/09/29 01:05 +0800
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