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參數(shù)資料
| 型號(hào)： | RN5RYXX1 |
| 廠商： | Ricoh Co., Ltd. |
| 英文描述： | VFM STEP-UP DC/DC CONVERTER CONTROLLER |
| 中文描述： | 衡工量值式升壓型DC / DC變換器控制器 |
| 文件頁(yè)數(shù)： | 1/12頁(yè) |
| 文件大?。?/td> | 437K |
| 代理商： | RN5RYXX1 |
VFM STEP-UP DC/DC
CONVERTER CONTROLLER
RN5RYxx1 SERIES
1
OUTLINE
The RN5RYxx1 Series are CMOS-based VFM Control ICs for step-up DC/DC converter with an external dri-
ver transistor featuring high output voltage accuracy and low supply current. Each of the RN5RYxx1 Series ICs
consists of a voltage reference unit, an error amplifier, an oscillator, a VFM control circuit and feed back resistors.
A low ripple, high efficiency step-up DC/DC converter can be composed of the RN5RYxx1 Series with only an
inductor, a diode, a capacitor, and a drive transistor.
Since the package for these ICs is SOT-23-5( Mini-mold)package, high density mounting of the ICs on boards
is possible.
Low Supply Current ..................................................................................Typ. 3μA
Low Standby Current..................................................................................Typ. 0.6μA
Low Temperature-Drift Coefficient of Output Voltage ...........................Typ. ±50ppm / C
High Accuracy Output Voltage...................................................................±2.5%
Low Oscillation Start-up Voltage...............................................................Max. 0.8V
Small Package .............................................................................................SOT-23-5(Mini-Mold)
FEATURES
APPLICATIONS
Power source for battery-powered instruments.
Power source for cameras, VCRs, camcorders, pagers, and other hand-held communication instruments.
BLOCK DIAGRAM
+
–
5
3
1
2
Vref
OSC
Output
Buffer
CE
EXT
V
OUT
GND
NO. EA-030-0204
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