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Description
The R1224N252H is a CMOS-based PWM step-down DC/DC Converter controller designed 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 an input voltage detect circuit. With just a few external components, this IC can easily compose a low ripple, high efficiency step-down DC/DC converter. The output voltage can be fixed or adjusted using external resistors. However, the adjustable types do not have the 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
The R1224N252H is suitable for various applications such as power sources for hand-held communication equipment, cameras, video instruments like VCRs and camcorders, battery-powered devices, and household electrical appliances.
- Supply Current:
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Datasheet
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Shopping guide
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Popular parts of the same kind
- Datasheet: Download R1224N252H
- Chipdatas Part: CD93-R1224N252H
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/30 19:38 +0800
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