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參數(shù)資料
| 型號(hào)： | RN5RY202A-TR |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | VFM STEP-UP DC/DC CONVERTER CONTROLLER |
| 中文描述： | 0.05 A SWITCHING CONTROLLER, 180 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封裝： | MINI, PLASTIC, SOT-23, 5 PIN |
| 文件頁(yè)數(shù)： | 1/9頁(yè) |
| 文件大?。?/td> | 59K |
| 代理商： | RN5RY202A-TR |
VFM STEP-UP DC/DC
CONVERTER CONTROLLER
RN5RY202
NO.EA-042-0006
1
OUTLINE
The RN5RY202 Series are VFM (chopper) Control ICs for step-up DC/DC converter with an external power transis-
tor featuring high output voltage accuracy and low supply current by CMOS process. Each of the RN5RY202
Series ICs consists of a voltage reference unit, an error amplifier, an oscillator, a VFM control circuit and feed back
resistors.
Output voltage is fixed at 2V in the IC.
A low ripple, high efficiency step-up DC/DC converter can be constructed by simply adding an inductor, a diode, a
capacitor, and a drive transistor and feed back resistors.
Although the series have no CE pins unlike RN5RY
××
1A, high voltage (V
OUT
=30V) can be also output by using
external feed back resistors.
FEATURES
Low Supply Current............................................................................TYP. 3μA
Low Temperature-Drift Coefficient of Output Voltage...................TYP. ±50ppm/C
High Accuracy Output Voltage.........................................................±2.5%
Low Oscillation Start-up Voltage (no load)......................................MAX. 0.8V
Any output voltage can be set with external resistors
Small Package SOT-23-5 (Mini-Mold)
APPLICATIONS
Constant voltage power source for battery-powered instruments.
Constant power source for cameras, camcorders, pagers, and other hand-held communication tools.
Constant power source for devices that require higher voltages than battery voltages.
BLOCK DIAGRAM
+
–
2
3
1
5
Vref
Oscillator
Output
Buffer
V
OUT
V
DD
GND
EXT
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| RN5RY202C-TL | VFM STEP-UP DC/DC CONVERTER CONTROLLER |
| RN5RY202 | High Speed CMOS Logic Quad D-Type Flip-Flops with Reset 16-SOIC -55 to 125 |
| RN5RY202A | High Speed CMOS Logic Quad D-Type Flip-Flops with Reset 16-SOIC -55 to 125 |
| RN5RY202C | High Speed CMOS Logic Quad D-Type Flip-Flops with Reset 16-SOIC -55 to 125 |
| RN5VL27C-RF | VOLTAGE DETECTOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RN5TB | 制造商:Eaton Corporation 功能描述:5 Circuit Terminal Block For Renovation Loadcenter |
| RN5VD | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:VOLTAGE DETECTOR WITH OUTPUT DELAY |
| RN5VD09A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage Detector |
| RN5VD09AA | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:VOLTAGE DETECTOR WITH OUTPUT DELAY |
| RN5VD09AA-TL | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:VOLTAGE DETECTOR WITH OUTPUT DELAY |
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