- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄192258 > RS5RJ1522B-T2-FA (RICOH COMPANY LTD) 0.25 A SWITCHING REGULATOR, 100 kHz SWITCHING FREQ-MAX, PDSO8 PDF資料下載
參數(shù)資料
| 型號： | RS5RJ1522B-T2-FA |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.25 A SWITCHING REGULATOR, 100 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | SOP-8 |
| 文件頁數(shù)： | 28/29頁 |
| 文件大小： | 574K |
| 代理商： | RS5RJ1522B-T2-FA |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁當前第28頁第29頁
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
相關PDF資料 |
PDF描述 |
|---|---|
| RS5RJ1538B-T2-FA | 0.25 A SWITCHING REGULATOR, 100 kHz SWITCHING FREQ-MAX, PDSO8 |
| RS5RJ1545A-T1-FA | 0.25 A SWITCHING REGULATOR, 100 kHz SWITCHING FREQ-MAX, PDSO8 |
| RS5RJ1550A-T2-FA | 0.25 A SWITCHING REGULATOR, 100 kHz SWITCHING FREQ-MAX, PDSO8 |
| RS5RJ3322A-T2-FA | 0.25 A SWITCHING REGULATOR, 100 kHz SWITCHING FREQ-MAX, PDSO8 |
| RS5RJ3328A-T2-FA | 0.25 A SWITCHING REGULATOR, 100 kHz SWITCHING FREQ-MAX, PDSO8 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| RS5RJ3027A | 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 |
| RS5RJ3027A-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 |
| RS5RJ3027A-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 |
| RS5RJ3027B | 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 |
| RS5RJ3027B-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 |
發(fā)布緊急采購，3分鐘左右您將得到回復。