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參數(shù)資料
| 型號(hào)： | RE5RE31AC-RR-FC |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | 固定正電壓單路輸出LDO穩(wěn)壓器 |
| 英文描述： | 3.1 V FIXED POSITIVE LDO REGULATOR, 0.7 V DROPOUT, PBCY3 |
| 封裝： | TO-92, 3 PIN |
| 文件頁數(shù)： | 10/23頁 |
| 文件大?。?/td> | 570K |
| 代理商： | RE5RE31AC-RR-FC |
18
Rx5RE
TYPICAL APPLICATION
In Rx5RE Series, a constant voltage can be obtained
without using capacitors C1 and C2. However, when the
wire connected to VIN is long, use capacitor C1. Output
noise can be reduced by using capacitor C2.
Insert capacitors C1 and C2 with the capacitance of
0.1F to 2.0F between input/output pins and GND pin
with minimum wiring.
The output voltage can be obtained by the follow-
ing formula :
VOUT=Vreg (1+R2/R1) + ISS R2
Since the quiescent current of Rx5RE Series is so
small that the resistances of R1 and R2 can be set as
large as several hundreds k
and therefore the sup-
ply current of “Voltage Boost Circuit” itself can be
reduced.
Furthermore, since Rx5RE Series are operated by
a constant voltage, the supply current of “Voltage
Boost Circuit” is not substantially affected by the
input voltage.
As shown in the circuit diagram, a dual power sup-
ply circuit can be constructed by using two Rx5RE
Series.
This circuit diagram shows a dual power supply
circuit with an output of 3V and an output of 5V.
When the minimum output current of IC2 is larger
than ISS of IC1, resistor R is unnecessary. Diode D is
a protection diode for the case where VOUT2
becomes larger than VOUT1.
VOLTAGE BOOST CIRCUIT
DUAL POWER SUPPLY CIRCUIT
C2
C1
VIN
GND
Rx5RE
SERIES
VOUT
VIN
+
C2
C1
VIN
GND
Rx5RE
SERIES
VOUT
VIN
R1
R2
ISS
+
C1
C2
VIN
GND
Rx5RE20A
Rx5RE30A
VOUT
VOUT1
5V
VOUT2
3V
VIN
C3
GND
VOUT
VIN
R
ISS
IC1
IC2
D
+
*1) Vreg : Set Output Voltage of Rx5RE Series.
*1
APPLICATION CIRCUITS
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| RH5RE31AA-T2-FB | 3.1 V FIXED POSITIVE LDO REGULATOR, 0.7 V DROPOUT, PSSO3 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RE5RE31AC-T1 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:VOLTAGE REGULATOR FOR MIDDLE OUTPUT CURRENT |
| RE5RE31AC-T2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:VOLTAGE REGULATOR FOR MIDDLE OUTPUT CURRENT |
| RE5RE31AC-TZ | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:VOLTAGE REGULATOR FOR MIDDLE OUTPUT CURRENT |
| RE5RE32A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Positive Fixed Voltage Regulator |
| RE5RE32AA | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:VOLTAGE REGULATOR FOR MIDDLE OUTPUT CURRENT |
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