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Description
The RH5RI502B-T1 is a VFM (Chopper) Step-up DC/DC converter IC designed for low supply current. It is built with a CMOS process and consists of an oscillator, VFM control circuit, driver transistor (Lx switch), reference voltage unit, error amplifier, resistors for voltage detection, and Lx switch protection circuit. With only three external components - an inductor, a diode, and a capacitor - this IC can construct a low ripple, high efficiency step-up DC/DC converter.
Specifications and features
- Small Number of External Components: Only an inductor, a diode, and a capacitor (RH5RI502B-T1)
- Ultra Low Input Current: TYP. 4µA (RH5RI301B/303B at no load, with 1.5V input)
- High Output Voltage Accuracy: ±2.5%
- Low Ripple and Low Noise
- Low Start-up Voltage (When the output current is 1mA): MAX. 0.9V
- High Efficiency: TYP. 80%
- Low Temperature-Drift Coefficient of Output Voltage: TYP. ±50 ppm/˚C
- Small Packages: SOT-89 (RH5RI502B-T1, RH5RI502B-T2), SOT-89-5 (RH5RI502B-T3)
Application Scenarios
- Power source for battery-powered equipment
- Power source for cameras, camcorders, VCRs, PDAs, electronic data banks, and hand-held communication equipment
- Power source for appliances which require higher cell voltage than that of batteries used in the appliances
Comparison
Advantages- Low input current
- High output voltage accuracy
- Low ripple and low noise
- High efficiency
- Stable output voltage
- Compact size
Disadvantages- Requires external components
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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:
- - Automatic Email notification (above 5 times)
- - View in your order page
Shipping option:
DHL, FedEx, EMS, SF Express, and Registered Air MailShipping tracking:
- - Automatic Email notification (above 5 times)
- - View in your order page
How to Buy:
- - In-stock, Add to cart > Check out > Submit order > Complete payment >Delivery.
- - Inquiry, Add to inquiry sheet/Submit bom/inquire file/Send email us > Quote > Place order > Complete payment >Delivery.
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Payment:
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- - Wire transfer, include Local bank transfer.
- - Western Union.
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Weitere Informationen
- Datasheet: Download RH5RI502B-T1
- Chipdaten Teil: CD94-RH5RI502B-T1
- Lagerhaus: China, Hongkong
- Versenden: Innerhalb von 24 Stunden
- Kostenloser Versand: Yes
- Bevorzugter Versand: Yes, 3-5 days
- Letzte Aktualisierung: 2024/06/28 14:27 +0800
Refund
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Versandtipps
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