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Description
The RH5RH552B-T1 is a Pulse Width Modulated (PWM) step-up DC/DC converter IC that is manufactured through complementary metal-oxide-semiconductor (CMOS) process. This IC is a part of the RH5RH××1A/××2B/××3B series. It is equipped with various circuits like PWM control circuit, phase compensation circuit, error amplifier, reference voltage unit, resistors for voltage detection, driver transistor (Lx switch), soft-start circuit, and Lx switch protection circuit.
Specifications and features
- Number of External Components: Only an inductor, a diode and a capacitor (RH5RH××1A)
- Supply Current: TYP. 15µA (RH5RH301A) on no load condition
- Ripple and Noise: Low
- Start-up Voltage: MAX. 0.9V when output current is 1mA
- Output Voltage Accuracy: ±2.5%
- Efficiency: TYP. 85%
- Temperature-Drift Coefficient of Output Voltage: TYP. ±50 ppm/˚C
- Soft-Start: MIN. 500µs
- Packages: SOT-89 (RH5RH××1A, RH5RH××2B), SOT-89-5 (RH5RH××3B)
Application Scenarios
The RH5RH552B-T1 IC can be utilized in electronic circuits that require a high efficiency step-up DC/DC converter. Due to its low ripple and low noise features, it is applicable in noise-sensitive electronics. It can also work in conditions where the output voltage accuracy needs to be high. Its low startup voltage feature makes it easy to start at low power conditions.
Comparison
Advantages- Small number of external components
- Ultra-low supply current on no load condition
- Low ripple and low noise
- High output voltage accuracy
- High efficiency
- Low temperature-drift coefficient of output voltage
- Soft-start feature for easy startup at low power conditions
- Suitable for noise-sensitive electronics
DisadvantagesNot specified.
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Datasheet
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- Datasheet: Download RH5RH552B-T1
- Chipdatas Part: CD92-RH5RH552B-T1
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/10/01 15:49 +0800
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