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参数资料
| 型号： | R1210N232D-TR-F |
| 厂商： | RICOH COMPANY LTD |
| 元件分类： | 稳压器 |
| 英文描述： | 0.04 A SWITCHING CONTROLLER, 216 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封装： | LEAD FREE, MINI, SOT-23, 5 PIN |
| 文件页数： | 1/21页 |
| 文件大小： | 246K |
| 代理商： | R1210N232D-TR-F |
PWM Step-up DC/DC Converter Controller
R1210Nxx2x SERIES
NO. EA-064-071207
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. 0.5A
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 (Mini-mold)
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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相关代理商/技术参数 |
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| R1210N241A | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:POWER MANAGEMENT ICs MARK INFORMATIONS R1210N SERIES MARK SPECIFICATION |
| R1210N241A-TL | 制造商:未知厂家 制造商全称:未知厂家 功能描述:SMPS Controller |
| R1210N241A-TR | 制造商:未知厂家 制造商全称:未知厂家 功能描述:SMPS Controller |
| R1210N241C | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:POWER MANAGEMENT ICs MARK INFORMATIONS R1210N SERIES MARK SPECIFICATION |
| R1210N241C-TL | 制造商:未知厂家 制造商全称:未知厂家 功能描述:SMPS Controller |
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