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參數(shù)資料
| 型號： | RP500K163A-TR |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.9 A SWITCHING REGULATOR, 1440 kHz SWITCHING FREQ-MAX, DSO6 |
| 封裝： | 1.80 X 2 MM, DFN-6 |
| 文件頁數(shù)： | 1/24頁 |
| 文件大小： | 664K |
| 代理商： | RP500K163A-TR |
RP500x SERIES
600mA* Step-down DC/DC Converter with Synchronous Rectifier
NO.EA-155-090120
1
OUTLINE
The RP500x Series are CMOS-based 600mA* step-down DC/DC Converters with synchronous rectifier.
Each of these ICs consists of an oscillator, a switching control circuit, a reference voltage unit, an error
amplifier, a soft-start circuit, protection circuits, UVLO circuit, switching transistors, and so on. A low ripple, high
efficiency step-down DC/DC converter can be easily composed of this IC with only an inductor and capacitors.
In terms of the output voltage, since the feedback resistances are built-in, the voltage is fixed internally. 0.1V
step output can be set by laser-trim and 1.5% or 24mV tolerance depending on the output voltage is guaranteed.
Mode alternative circuit works automatically for improving the efficiency. Considering fixed noise frequency,
PWM fixed control type is also available.
As protection circuits, the current limit circuit which limits peak current of Lx at each clock cycle, and the latch
type protection circuit which works if the term of the over-current condition keeps on a certain time exist. The
latch-type protection circuit works to latch an internal driver with keeping it disable. To release the condition of
the protection, after disabling this IC with a chip enable circuit, enable it again, or restart this IC with power-on or
make the supply voltage at UVLO detector threshold level or lower than UVLO.
Since packages are WLCSP-6-P2, DFN(PLP)1820-6, SOT-23-6W, high density mounting on boards is
possible.
*)This is an approximate value, because output current depends on conditions and external parts.
FEATURES
Supply Current ......................................................Typ. 400μA (at PWM mode)
Typ. 100
μA (at VFM mode)
Standby Current ....................................................Max. 5μA
Input Voltage Range .............................................2.55V to 5.50V
Output Voltage ......................................................Stepwise setting with a step of 0.1V in the range of
1.1V to 3.3V is possible.
Output Voltage Accuracy.......................................±1.5% (VOUT >
= 1.6V),
±24mV (VOUT<1.6V)
Temperature-Drift Coefficient of Output Voltage ...Typ. ±100ppm/°C
Oscillator Frequency .............................................Typ. 1.2MHz
Oscillator Maximum Duty Cycle............................Min. 100%
Built-in Driver ON Resistance ...............................Typ. Pch. 0.3Ω, Nch. 0.38Ω (VIN=3.6V)
UVLO Detect Voltage............................................Typ. 2.2V
Soft Start Time.......................................................Typ. 120μs
Lx Current Limit.....................................................Typ. 900mA
Latch type Protection Circuit.................................Typ. 1.5ms
Two choices of Switching Mode............................Automatic PWM/VFM mode change / PWM fixed
Packages ..............................................................WLCSP-6-P2, DFN(PLP)1820-6, SOT-23-6W
APPLICATIONS
Power source for battery-powered equipment.
Power source for hand-held communication equipment, cameras, VCRs, camcorders.
Power source for HDD, portable equipment.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RP500X | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:The RP500X Series are CMOS-based step-down DC/DC Converters with synchronous rectifier. |
| RP50-2405S | 制造商:RECOM 制造商全稱:Recom International Power 功能描述:50 Watt Single Output |
| RP50-2405SN | 制造商:RECOM 制造商全稱:Recom International Power 功能描述:50 Watt Single Output |
| RP50-2405SP | 制造商:RECOM 制造商全稱:Recom International Power 功能描述:50 Watt Single Output |
| RP50-241.8S | 制造商:RECOM 制造商全稱:Recom International Power 功能描述:50 Watt Single Output |
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