R1232D001C-TR-F - Brand New Nisshinbo Micro Devices Inc. IC Chips
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Description
The R1232D Series are CMOS-based PWM step-down DC/DC converters with synchronous rectifier and low supply current. Each IC in this series includes an oscillator, a PWM control circuit, a voltage reference unit, an error amplifier, a soft-start circuit, protection circuits, a chip enable circuit, a synchronous rectifier, Nch. driver transistor, and more. Additionally, a low ripple and high-efficiency step-down DC/DC converter can be easily composed using this IC with only a few external components or an inductor and capacitors. The R1232D001x types have an adjustable output voltage with external divider resistors, while the R1232Dxx1x types have a fixed internal output voltage.
Specifications and features
• Two choices of Oscillator Frequency: 1MHz, 2.25MHz (Small inductors can be used. 4.7µH for 1MHz/2.2µH for 2.25MHz)
• Built-in Driver ON Resistance: P-channel 0.2Ω (at VIN=5.0V)
• Built-in Soft-start Function: Typ. 1.0ms (fosc=1MHz type)
• Output Voltage: 0.9V to 3.3V (xx1x Type), 0.8V to VIN (001x Type)
• High Accuracy Output Voltage: ±2.0%
• Built-in Current Limit Circuit: Typ. 1.4A
• Package: SON-8 (t=0.9mm)
Application Scenarios
• Power source for portable equipment such as PDA, DSC, Notebook PC.
• Power source for HDD
Comparison
Advantages- CMOS-based PWM step-down DC/DC converters
- Low supply current
- Easy composition of low ripple and high-efficiency step-down DC/DC converter
Disadvantages- External divider resistors required for adjustable output voltage in R1232D001x types
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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 R1232D001C-TR-F
- Chipdatas Part: CD94-R1232D001C-TR-F
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
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- Last Updated: 2024/06/23 11:29 +0800
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- Full or Partial Refund , If the item is not as described
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