R1224N502M-TR-F - Brand New RICOH IC Chips
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Description
The R1224N502M-TR-F is a CMOS-based PWM step-down DC/DC converter controller. It has low supply current and is designed with several integrated circuits including an oscillator, a PWM control circuit, a reference voltage unit, an error amplifier, a phase compensation circuit, a soft-start circuit, a protection circuit, a PWM/VFM alternative circuit, a chip enable circuit, as well as resistors for output voltage detection and an input voltage detect circuit.
A low ripple and high-efficiency step-down DC/DC converter can be easily created using the R1224N502M-TR-F with only a few external components, such as a power-transistor, an inductor, a diode, and capacitors. The output voltage of this converter can be fixed or adjusted using external resistors (adjustable types are without PWM/VFM alternative circuit).
Specifications and features
- Supply Current: Typ. 20µA (R1224Nxx2E/F/M/L, R1224N102M), Typ. 30µA (R1224Nxx2G, R1224N102G), Typ. 40µA (R1224Nxx2H, R1224N102H)
- Standby Current: Typ. 0µA
- Input Voltage Range: 2.3V~18.5V
- Output Voltage Range: 1.2V to 6.0V (R1224Nxx2x), 1.0V to VIN (R1224N102x)
- Output Voltage Accuracy: ±2.0%
- Oscillator Frequency: Typ. 180kHz (R1224Nxx2M, R1224N102M), Typ. 300kHz (R1224Nxx2E/G, R1224N102G), Typ. 500kHz (R1224Nxx2F/H, R1224N102H)
- Efficiency: Typ. 90%
- Low Temperature-Drift Coefficient of Output Voltage: Typ. ±100ppm/°C
- Package: SOT-23-5
- Built-in Soft-start Function: Typ. 10ms
- Built-in Current Limit Circuit
Application Scenarios
- Power source for hand-held communication equipment, cameras, video instruments such as VCRs, camcorders.
- Power source for battery-powered equipment.
- Power source for household electrical appliances.
Comparison
Advantages:- CMOS-based design for low supply current.
- Easy composition of a low ripple, high-efficiency step-down DC/DC converter with few external components.
- Adjustable output voltage with external resistors.
Disadvantages:- None mentioned.
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Similar parts: 430483 , Click to view
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Datasheet
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Shopping guide
Delivery period:
- - Will ship out in 2-3 days
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Popular parts of the same kind
- Datasheet: Download R1224N502M-TR-F
- Chipdatas Part: CD87-R1224N502M-TR-F
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/10/01 09:58 +0800
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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The fee is charged according to the rule of PayPal.
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