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Description
The RH5RH303B 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: an inductor, a diode, and a capacitor. It achieves an ultra-low supply current of TYP. 15µA, equivalent to the low supply current of a VFM (chopper) Step-up DC/DC converter.
Specifications and features
- Small Number of External Components: Only an inductor, a diode, and a capacitor
- Low Supply Current: TYP. 15µA
- 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
This RH5RH303B IC can be used in various applications that require a low ripple, high efficiency step-up DC/DC converter. It is suitable for electronic devices that require a stable output voltage with a small number of external components.
Comparison
Advantages- Requires only three external components for construction
- Ultra-low supply current
- Low ripple and low noise
- High efficiency
- Low temperature-drift coefficient of output voltage
- Soft-start feature
- Small packages for space-saving
DisadvantagesNo apparent disadvantages were found for this model.
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Datenblatt
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Shopping guide
Delivery period:
- - Will ship out in 2-3 days
- - DHL Express: 3-7 business days
- - DHL eCommerce: 12-22 business days
- - FedEx International Priority: 3-7 business days
- - EMS: 10-15 business days
Shipping fee:
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Shipping option:
DHL, FedEx, EMS, SF Express, and Registered Air MailShipping tracking:
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How to Buy:
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Payment:
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- - Western Union.
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Beliebte Teile der gleichen Art
- Datasheet: Download RH5RH303B
- Chipdaten Teil: CD94-RH5RH303B
- Lagerhaus: China, Hongkong
- Versenden: Innerhalb von 24 Stunden
- Kostenloser Versand: Yes
- Bevorzugter Versand: Yes, 3-5 days
- Letzte Aktualisierung: 2024/09/29 00:56 +0800
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