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參數(shù)資料
| 型號(hào)： | RS5RJ3329B-T2 |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Circular Connector; MIL SPEC:MIL-C-5015; Body Material:Metal; Series:GT; No. of Contacts:16; Connector Shell Size:24; Connecting Termination:Solder; Body Style:Straight; Circular Contact Gender:Socket; Gender:Female |
| 中文描述： | 0.25 A SWITCHING REGULATOR, 100 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | SOP-8 |
| 文件頁(yè)數(shù)： | 28/29頁(yè) |
| 文件大?。?/td> | 574K |
| 代理商： | RS5RJ3329B-T2 |
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8
RS5RJ
–
+
–
+
LX Tr
LX
VFM
OSC
Vref1
Vref2
Pch Tr
VSS
100F
100H
VDD
VOUT
VIN
22F
1F
5
1
86
FIG. A Diagram of RS5RJ including external circuits
OPERATION
1. VDD Output Voltage
VDD output voltage is shown in Fig. B.
(1) In the case of VIN–Vf
≥VDD0:
In Area B, LxTr is maintained in an OFF state, so that VIN–Vf (V) is output as it is from VDD pin without
step-up operation.
(2) In the case of VIN–Vf <VDD0:
In Area A, this IC functions as Step-up DC/DC converter. The step-up operation will now be explained
with reference to FIG. A. The step-up operation is an operation for regulating the VDD output voltage by
comparing Vref1 and the VDD output voltage by error amplifier circuits and subjecting LxTr to on-time con-
trol by VFM circuits (i.e., by controlling the step-up operation).
2. VOUT Output Voltage
A constant voltage is output from VOUT pin, with above-mentioned the VDD output voltage being subjected to a
step-down operation by a linear regulator. This step-down operation will now be explained with reference to FIG. A.
The step-down operation is an operation for regulating the VDD output voltage by Pch Tr by comparing Vref2 and
the VDD output voltage.
VIN
: Input Voltage
VDD0: VDD Set Voltage
VOUT0: VOUT Set Voltage
Vf
: ON Voltage of Diode
VDD
VOUT
VDD0+Vf
1.2V
10V
Input Voltage (V)
Output
Voltage
(V)
Area A
VDD0
Area B
VOUT0
FIG. B Output Voltage vs. Input Voltage characteristic
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| R1230D001D-TR | Circular Connector; MIL SPEC:MIL-C-26482, Series I, Crimp; Body Material:Metal; Series:MS C-26482 Series I; No. of Contacts:18; Connector Shell Size:14; Connecting Termination:Crimp; Circular Shell Style:Straight Plug RoHS Compliant: No |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RS5RJ3531A | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:VFM STEP-UP DC/DC CONVERTER WITH VOLTAGE REGULATOR AND DETECTOR |
| RS5RJ3531A-T1 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:VFM STEP-UP DC/DC CONVERTER WITH VOLTAGE REGULATOR AND DETECTOR |
| RS5RJ3531A-T2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:VFM STEP-UP DC/DC CONVERTER WITH VOLTAGE REGULATOR AND DETECTOR |
| RS5RJ3531B | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:VFM STEP-UP DC/DC CONVERTER WITH VOLTAGE REGULATOR AND DETECTOR |
| RS5RJ3531B-T1 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:VFM STEP-UP DC/DC CONVERTER WITH VOLTAGE REGULATOR AND DETECTOR |
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