R1224N502M-TR-FE - Brand New RICOH IC Chips
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Description
The R1224N502M-TR-FE is a CMOS-based PWM step-down DC/DC Converter controller IC with low supply current. It consists of 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, resistors for output voltage detect, and input voltage detect circuit. This IC can easily compose a low ripple, high efficiency step-down DC/DC converter with only several external components, or a power-transistor, an inductor, a diode and capacitors. The output voltage is fixed or can be adjusted with external resistors (Adjustable types are without PWM/VFM alternative circuit).
Specifications and features
- Product Category: IC Chips
- 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
The R1224N502M-TR-FE IC can be used as a power source in various applications, including hand-held communication equipment, cameras, video instruments such as VCRs and camcorders, battery-powered equipment, and household electrical appliances.
Comparison
Advantages- Low supply current
- High efficiency
- Low-temperature drift coefficient of Output Voltage
- Built-in soft-start function
- Built-in current-limit circuit
Disadvantages- The IC has fixed or adjustable output voltage, but the adjustable types are without PWM/VFM alternative circuits
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Similar parts: 430483 , Click to view
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Datasheet
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Shopping guide
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Popular parts of the same kind
- Datasheet: Download R1224N502M-TR-FE
- Chipdatas Part: CD88-R1224N502M-TR-FE
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/10/01 08:53 +0800
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