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R1224N272E中文资料PDF规格书
R1224N272E规格书详情
OUTLINE
The R1224N Series are CMOS-based PWM step-down DC/DC Converter controllers with low supply current. Each of these ICs 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. A low ripple, high efficiency step-down DC/DC converter can be easily composed of this IC with only several external components, or a power-transistor, an inductor, a diode and capacitors. Output Voltage is fixed or can be adjusted with external resistors (Adjustable types are without PWM/VFM alternative circuit).
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
APPLICATIONS
• 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.
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
RICOH(理光) |
23+ |
SOT235 |
6000 |
诚信服务,绝对原装原盘 |
询价 | ||
RICOH |
21+ |
25000 |
原厂原包 深圳现货 主打品牌 假一赔百 可开票! |
询价 | |||
RICOH(理光) |
23+ |
SOT235 |
7350 |
现货供应,当天可交货!免费送样,原厂技术支持!!! |
询价 | ||
RICOH(理光) |
1932+ |
SOT-23-5 |
2789 |
向鸿优势仓库库存-绝对原装正品-不做假货! |
询价 | ||
RICOH-理光 |
24+25+/26+27+ |
SOT-23-5 |
9328 |
一一有问必回一特殊渠道一有长期订货一备货HK仓库 |
询价 | ||
RICOH(理光) |
2021+ |
SOT-23-5 |
499 |
询价 | |||
Nisshinbo Micro Devices Inc. |
24+ |
SC-74A,SOT-753 |
9350 |
独立分销商,公司只做原装,诚心经营,免费试样正品保证 |
询价 | ||
RICOH(理光) |
2112+ |
SOT-23-5 |
105000 |
3000个/圆盘一级代理专营品牌!原装正品,优势现货, |
询价 | ||
理光 |
22+ |
NA |
500000 |
万三科技,秉承原装,购芯无忧 |
询价 | ||
SEIKO/精工 |
SOT23-5 |
11200 |
原厂授权一级代理、全球订货优势渠道、可提供一站式BO |
询价 |