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參數(shù)資料
| 型號： | R1210N292D-TR-FE |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.04 A SWITCHING CONTROLLER, 216 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封裝： | HALOGEN FREE AND ROHS COMPLIANT, SOT-23, 5 PIN |
| 文件頁數(shù)： | 1/20頁 |
| 文件大?。?/td> | 307K |
| 代理商： | R1210N292D-TR-FE |
R1210Nxx2x SERIES
PWM Step-up DC/DC Controller
NO.EA-064-100618
1
OUTLINE
The R1210Nxx2C/xx2D Series are CMOS-based PWM step-up DC/DC Converter controllers, with high
accuracy, low supply current.
Each of the R1210Nxx2x Series consists of an oscillator, a PWM circuit, a reference voltage unit, an error
amplifier, phase compensation circuit, resistors for voltage detection, a chip enable circuit, a controller against
drastic load transient and an output voltage detector. A low ripple, high efficiency step-up DC/DC converter can
be composed of this IC with only four external components, or an inductor, a diode, a transistor and a capacitor.
The R1210Nxx2x Series can detect drastic change of output voltage with a circuit controller, the load transient
response is improved.
Each of the R1210Nxx2x Series has a driver pin, or ‘EXT’ pin for external transistor. By connecting a power
transistor with low ON-resistance to EXT pin, a large current flows through an inductor, thus, large output current
can be supplied.
The built-in chip enable circuit can make the standby mode with ultra low quiescent current.
Since the package for these ICs is small SOT-23-5, high density mounting of the ICs on board is possible.
FEATURES
External Components .......................................Only an inductor, a diode, a capacitor, and a transistor
Standby Current ................................................Max. 0.5μA
Low Temperature-Drift Coefficient of Output Voltage Typ. ±100ppm/°C
Output Voltage ..................................................Stepwise Setting with a step of 0.1V in the range of
2.2V to 6.0V
Two choices of Basic Oscillator Frequency ......100kHz (xx2C), 180kHz (xx2D)
Output Voltage Accuracy...................................±2.5%
Small Package ..................................................SOT-23-5
Low Ripple, Low Noise
Oscillator Start-up Voltage ................................Max. 0.8V
APPLICATIONS
Power source for battery-powered equipment.
Power source for portable communication appliances, cameras, VCRs
Power source for appliances of which require higher voltage than battery voltage.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| R1210N301A | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:POWER MANAGEMENT ICs MARK INFORMATIONS R1210N SERIES MARK SPECIFICATION |
| R1210N301A-TL | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:PWM Step-up DC/DC Converter |
| R1210N301A-TR | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:PWM Step-up DC/DC Converter |
| R1210N301C | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:PWM Step-up DC/DC Converter |
| R1210N301C-TL | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:PWM Step-up DC/DC Converter |
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